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quantum II - HARMAN Professional

1. d b x PROFESSIONAL PRODUCTS QUANTUM II User Manual 9 2 3 Multiband Gate Navigating the Multiband Gate Navigate through the Pages by depressing Next Page or Prev Page successively until arriving at the desired Page 4 PREV PAGE NEXT PAGE gt GATE Page 1 Page 2 Page 3 Navigate through All Gate On Loc Off Max Att the bands by Bands rhreshold depressing the Ratio p 9 GATE Gate button successively until arriving at the desired band Sano Band 1 On Off Max Att Threshold Ratio A GATE Band 2 On Off Threshold Ratio Max Att O GATE Band 3 On Off Threshold Ratio Band sana onon 4 Threshold Ratio Max Att O GATE Max Att A SUL Navigate through the Parameters on each Page by depressing the data wheel Rotating the data wheel changes the value of the Parameter 10 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS 2 4 Broadband Gate Namgating the Broadband Gate Navigate through the Pages by depressing Next Page or Prev Page successively until arriving at the desired Page PREV PAGE NEXT PAGE gt a E OF Page 1 Page 2 Page 3 All Gate On Loc Off Attack Max Att Bands rhnreshold Hold Ratio Release GATE Navigate through the Parameters on each Page by depressing the data wheel Rotating the data wheel changes the value of the Parameter d b X Proressiowal PRODUCTS QUANTUM II User Manual 11 2 5 Multiband Limiter
2. This feature turn program Autoload either on or off When this parameter is set to On pro grams are automatically loaded upon selecting the desired program When this parameter is set to Off the program has to be loaded by pressing the LOAD button METER SPEED Ballistics control Low Med High The Quantum II includes the Meter Speed control which controls the rate of the peak and aver age meters d b X ProFessiONAL PRODUCTS QUANTUM II User Manual 51 APPLICATIONS dbx PROFESSIONAL PRODUCTS 6 1 Analog Mastering Hardware 1 Connect 2 track left output to the QUANTUM II s channel one input 2 Connect 2 track right output to the QUANTUM Ils channel two input 3 Connect the QUANTUM Il s AES EBU or S PDIF OUTPUT to digital recorder Software 1 Press the UTILITY button to enter the QUANTUM IT s utility section Change the INPUT to ANALOG 2 Change the CLOCK to desired internal sample rate 3 Set SRC to the final desired sampling frequency 4 Press the NORM OUTPUT button twice This accesses the dither and noise shaping of the output module 5 Set QUANTUM II to resolution of your recording device 8 16 20 or 24 bit 6 Choose which type of dither you would like to use refer to Section 4 16 7 Choose which type of noise shaping you would like to use refer to Section 4 16 8 Press the NEXT PAGE button to scroll to next set of options 9 Set dither out to All if you are monitoring the dither 10 Press O
3. Linked Ambience Width cc 26 Linked Ambience Threshold cc 27 Linked Ambience Threshold cc 28 gt Linked Crossover Edget Fc cc 29 Linked Crossover Edge1 Slope cc 30 Linked Crossover Edge2 Fc cc 31 Linked Crossover Edge2 Slope cc 32 Linked Crossover Edge3 Fc cc 33 gt Linked Crossover Edge3 Slope cc 34 Linked Band1 Gate On Off cc 35 Linked Band1 Gate Threshold cc 36 Linked Band1 Gate Gate Ratio cc 37 Linked Band1 Gate Attack cc 38 Linked Band1 Gate Hold time cc 39 Linked Band1 Gate Release cc 40 Linked Band1 Max Attenuation cc 41 Linked Band2 Gate On Off cc 42 Linked Band2 Gate Threshold cc 43 Linked Band2 Gate Gate Ratio cc 44 Linked Band2 Gate Attack cc 45 Linked Band2 Gate Hold time cc 46 Linked Band2 Gate Release cc 47 Linked Band2 Max Attenuation cc 48 gt Linked Band3 Gate On Off cc 49 gt Linked Band3 Gate Threshold cc 50 gt Linked Band3 Gate Gate Ratio cc 51 gt Linked Band3 Gate Attack cc 52 Linked Band3 Gate Hold time cc 53 gt Linked Band3 Gate Release cc 54 gt Linked Band3 Max Attenuation cc 55 gt Linked Band4 Gate On Off cc 56 gt Linked Band4 Gate Threshold cc 57 Linked Band4 Gate Gate Ratio cc 58 gt Linked Band4 Gate Attack cc 59 gt Linked Band4 Gate Hold time cc 60 gt Linked Band4 Gate Release cc 61 gt Linked Band4 Max Attenuation cc 62 Linked Band1 Compressor O
4. 5 3 Digital Input Controls CHANNELS 1 amp 2 Controls the digital input level of channels one and two This feature is designed to be used to even the levels between channels It can also be used to control the overall level of the digital input HIGH PASS This turns the high pass filter HPF On Off The high pass filter affects only the digital inputs Use The HPF to remove any DC offset in the input signal The QUANTUM II s HPF is set at 1 75 Hz Both input levels and the high pass filter are defeated when the clone bypass is activated 5 4 MIDI CC Map MIDI The QUANTUM II has been engineered to provide the user with a mind boggling array of MIDI controllable parameters This means that once you have set up your MIDI device it will control the same parameters in all presets This allows you to concentrate on the mix There are three MIDI CC maps one for each chain type Each map assigns the CC for all setups which use that chain type LINKED MULTIBAND LINKED NON MULTIBAND DUAL MONO Selects which map to edit MIDI CC Selects the MIDI Continuous Controller number to be used Controllers range from 0 127 A MIDI Continuous Controller may be Linked to nearly any available parameter in the QUAN TUM II Moving the cursor down once allows you to change which parameter is controlled by the chosen CC number Be careful sailing this MIDI Sargasso Sea there be monsters here With the amount of CC controllable parameters you wil
5. W hat the QUANTUM Il screen shows with MS EQ Pime Thi dno gt Side Chai PEQ i Stereo Input 1 Stereo G Dither Ll Adjust gt a gt Ambience pe Esser gt CoA gt Nom gt Nose gt cH2 gt Adi gt EQ gt gt gt tim gt gt Shape gt ChainType Stereo Linked Broadband with Pre EQ and MS Compressor W hat the QUANTUM II screen shows with MS Compressor THA MS Stereo Input 3 EQ M Y Y Dither CH1_y Stereo gt Post gt gt Ambience gt Er Ly Gate Comp Lim X Norm gt Noise P cH2 Adut y PEQ gt gt Gate Comp Lim gt Shape gt A A A Note W hen MS Compressor is used Gate to and Limiter modules become MS modules as well 22 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS 3 1 FX Chains cont ChainType Stereo Linked Broadband with Post EQ and MS Compressor W hat the QUANTUM Il screen shows with MS Compressor HHS MS EQ Stereo Input Y Y Y Dither cHi gt stereo gt Ambience pc Esser ster ome EN gt Post gt Norm gt gt Noise gt cH2 Ad t gt gt gt Gate comp Lim PEQ gt E gt A A A Note W hen MS Compressor is used Gate ES and Limiter modules become MS modules as well ChainType Stereo Linked Broadband with MS EQ and MS Compressor W hat the QUANTUM II screen shows with MS EQ MS Compressor Gere og 4 EQ gt Stereo Input Y Y Y CH Stereo al Gate Comp Lim apu gt Adi
6. cont Threshold 60 to 0 dB per band or global Threshold is the signal level at which the QUANTUM II starts to compress If the threshold is set to 10 dBFS then any signal larger than 10 dBFS is compressed while any signal that has a level lower than 10dBFS is left at the same level Light compression is where only the largest parts of the signal go over the threshold Very heavy compression can be achieved by setting the threshold low enough so that almost the entire signal content is over the threshold For most signals the most natural compression is achieved when most of the signal content remains just below the threshold and only the peaks cross the threshold Ratio 0 75 to Inf 1 per band or global Ratio is the amount the QUANTUM II reduces the signal level of the sound that is above the threshold A 2 1 ratio means that if the incoming signal is 2dB over the threshold the QUAN TUM II will compress the signal and outputs a signal that only goes 1dB over the threshold For light compression choose a lower ratio For heavy compression a higher ratio is used By setting the ratio at less than 1 1 the signal will be expanded rather than compressed The QUANTUM II will actually output a signal larger then the input At a ratio of 0 75 1 if a signal goes over the threshold by 0 75dB the unit will output a signal that is 1 dB over the threshold Gain 20 to 420 dB per band or global This is used to compensate for the gain lost durin
7. see the White Paper on page 65 of Appendix B Type IV On Off This tums Type IV on and off When turned off the QUANTUM II s A to D converters work as standard 24 bit 96 kHz converters Note that this can be controlled independently in dual mono programs Color This sets the color or tone of the Type IV conversion system The following options are avail able Bright Very bright and airy up top Light Notas much sizzle in the top but less aggressive on harsh mixes None No coloration Warm For that warm and friendly feel Dark Enhances low frequencies good for an bright mix Level 4 to 0 Sets the signal level at which the Type IV conversion system starts to work 42 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS 4 11 Stereo Adjust The Stereo Adjust control lets you change the width of the stereo mix Within the Other menu the following parameters are user adjustable St Adj On Off I think you get it by now tums it on turns it off Balance 100 to 100 This lets you adjust the panning of your signal from one side to the other 0 is center so 100 becomes extreme left and 100 becomes extreme right M S 100 to 100 This controls the width of your stereo image 0 is untouched so 100 becomes the narrow est mono while 100 become the widest possible stereo image 4 12 Ambience Ambience uses a combination of gain and compression to enhance low level information Reverb ta
8. thus preserving the high frequency content of the signal d b X ProressionaL PRODUCTS QUANTUM II User Manual 71 Amplitude Time Figure 3a Signal Having Low and High Frequency Content Amplitude A D Clip Level Time A D Clip Level Figure 3b Signal of Fig 3a Going Beyond the A D Clip Level 72 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS Amplitude High Frequency Information Completely Lost High Frequency Content A D Clip Level Low Frequency Content Time A D Clip Level v 4 High Frequency Information Completely Lost Figure 3c Disproportionate Loss of High Frequency Information Due to Clipping Amplitude 0dB FS A D Clip Level TYPE IV Over Region gt Time TYPE IV Over Region 0dB FS A D Clip Level Figure 3d Type IV Mapping Preserves High Frequency Information Now you re probably wondering What s the catch I can t get something for nothing so what did I give up You may be worried that your A D noise floor got 4 dB worse because we borrowed the top 4 dB of your converter This is certainly a valid concern Fortunately we have the answer Without going into the confidential technical details by using our proprietary analog and digital Type IV processing we reclaim the original A D noise level So what you get is free headroom The benefits of the dbx Type IV Conversion System can easily be heard by switching it in and out while lis tening to signals with h
9. 00 00 20 01 7F 00 00 00 00 00 20 00 00 00 00 00 00 00 20 00 01 00 00 00 00 00 20 00 02 00 00 00 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 lt lt SYSEX End gt gt F7 80 QUANTUM Il User Manual d b X PROFESSIONAL PRODUCTS E 1 Linked Multi band with Ambience Chain cc 0 gt Linked Type IV On Off cc 1 gt Linked Type IV Color cc 2 gt Linked Type IV Level cc 3 gt Linked or Middle Parametric EQ On Off cc 4 gt Linked or Middle Parametric EQ Position cc 5 gt Linked or Middle Parametric EQ Band1 Freq cc 6 gt Linked or Middle Parametric EQ Band1 Slope cc 7 gt Linked or Middle Parametric EQ Band1 Lvl cc 8 Linked or Middle Parametric EQ Band2 Freq cc 9 Linked or Middle Parametric EQ Band2 Q cc 10 gt Linked or Middle Parametric EQ Band2 Lvl cc 11 gt Linked or Middle Parametric EQ Band3 Freq cc 12 Linked or Middle Parametric EQ Band3 Q cc 13 gt Linked or Middle Parametric EQ Band3 Lvl cc 14 Linked or Middle Parametric EQ Band4 Freq cc 15 Linked or Middle Parametric EQ Band4 Q cc 16 gt Linked or Middle Parametric EQ Band4 Lvl cc 17 Linked or Middle Parametric EQ Band5 Freq cc 18 gt Linked or Middle Parametric EQ Band5 Slope cc 19 gt Linked or Middle Parametric EQ Bandb Lvl cc 20 Linked Stereo Adjust On Off cc 21 Linked Stereo Adjust Balance cc 22 Linked Stereo Adjust Stereo Mono cc 23 Linked Ambience On Off cc 24 Linked Ambience Amount cc 25
10. 1 44 1 gt 88 2 44 1 gt 48 96 gt 44 1 48 gt 44 1 Analog Internal Crystals Word Input BNC 96k 88 2k 48k 44 1k 96 gt 96 96 gt 88 2 96 gt 48 96 gt 44 1 88 2 gt 96 88 2 gt 88 2 88 2 gt 48 88 2 gt 44 1 48 gt 96 48 gt 88 2 48 gt 48 48 gt 44 1 44 1 gt 96 44 1 gt 88 2 Note D A is converting at the rate set for the System Clock Source not the SRC rate Analog AESEBU or SPDIF Input OFF 96k 88 2k 48k 44 1k Analog AESEBU or SPDIF Input Internal Crystals 96k 88 2k 48k 44 1k 96 gt 96 88 2 gt 96 88 2 gt 88 2 48 gt 96 48 gt 88 2 48 248 44 1 248 44 1 gt 44 1 44 1 gt 96 44 1 gt 88 2 Note D A is converting at the rate set for the System Clock Source not the SRC rate Analog Word Input BNC OFF 96k 88 2k 48k 44 1k Analog Word Input BNC Internal Crystals 96k 88 2k 48k 44 1k 96 gt 96 96 gt 88 2 96 gt 48 88 2 gt 96 88 2 gt 88 2 88 2 48 48 gt 96 48 gt 88 2 48 gt 48 44 1 gt 96 44 1 gt 88 2 44 1 gt 48 Note D A is converting at the rate set for the System Clock Source not the SRC rate Analog Word Input BNC AESEBU or SPDIF Input 96k 88 2k 48k 44 1k 96 96 96 gt 88 2 96 gt 48 88 2 gt 96 88 2 gt 88 2 88 2 gt 48 48 gt 96 48 gt 88 2 48 gt 48 44 1 gt 96 44 1 gt 88 2 44 1 gt 48 Note D A is converting at the rate set for the System Clock Source not the SRC rate Note BNC output frequency is the System Clock rate not the SRC rate Analog Super Clock Input B
11. 2 gt 88 2 88 2248 88 2 gt 44 1 48 gt 96 48 gt 88 2 48 gt 48 48 gt 44 1 44 1 gt 96 44 1 gt 88 2 44 1 gt 48 44 1 gt 44 1 Note The sample rate conversion takes place in the digital receiver All processing takes place at the converted rate AESEBU or SPDIF Input AESEBU or SPDIF Input Super Clock Input BNC 96k 88 2k 48k 44 1k SC48 SC44 1 96 gt 48 96 gt 44 1 88 2 gt 48 88 2 gt 44 1 48 gt 48 48 gt 44 1 44 148 44 1 gt 44 1 Note The sample rate conversion takes place in the digital receiver All processing takes place at the converted rate AESEBU or SPDIF Input Word Input BNC OFF 96k 88 2k 48k 44 1k Note Make sure AESEBU or SPDIF source and Word source are locked to a house sync source AESEBU or SPDIF Input Super Clock Input BNC OFF SC48 SC44 1 48 441 Note Make sure AESEBU or SPDIF source and Word source are locked to a house sync source 74 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS C 2 QUANTUM II Sync Input CAUTION These servicing instructions are for use by qualified service personnel only To reduce the risk of electric shock do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so Refer all servicing to qualified service personnel Disconnect mains power before servicing QUANTUM II comes with the sync input terminated For certain configurations you may wish to have the sync input be unterminated However db
12. 4 Analog Tracking seen 57 6 5 Digital Tracking 58 6 6 Analog Mixing i 59 6 7 Digital Mixing essere 60 6 8 Analog to Digital Converter 61 6 9 Sample Rate Converter 62 Section 7 GUI 7 1 System Requirements 64 A ritirata 64 7 3 Basic Operation in 65 Appendix A 1 Hard amp Soft Resets 68 A 2 Change Default Startup Program 68 A 3 Front Panel LOCKOUt M eee 68 AA Flash Downloads eee 68 B 1 Type IV White Paper 69 C 1 Clock MOdEsS nn 74 C 2 QUANTUM II Sync Input 75 C 3 Relay Mute Bypass Jumpers 77 D 1 SYSEX Definitions in 78 E 1 MIDI CC MultiBand Chains 81 E 2 MIDI CC Stereo Non MultiBand 82 E 3 MIDI CC Dual Mono Chains 83 E 4 MIDI CC Linked Multiband w De esser 84 E 1 Factory PIOGraAmMS iii 86 E2 Factory Setups cocco rere 87 G 1 Specifications iii 88 Hel AP PlOI 5 5 aceite acie teer ees 89 bx mosso PRODUCTS Table of Contents INTRODUCTION dbx PROFESSIONAL PRODUCTS Congratulations on your purchase of the dbx QUANTUM II Digital Mastering Processor For over 25 years dbx has been the industry leader in dynamics processing With the introduction of the QUANTUM II
13. Attack cc 52 Linked Band3 Gate Hold time cc 53 gt Linked Band3 Gate Release cc 54 Linked Band3 Max Attenuation cc 55 gt Linked Band4 Gate On Off cc 56 gt Linked Band4 Gate Threshold cc 57 gt Linked Band4 Gate Gate Ratio 84 QUANTUM II User Manual d b X PROFESSIONAL PRODUCTS cc 58 gt Linked Band4 Gate Attack cc 59 gt Linked Band4 Gate Hold time cc 60 gt Linked Band4 Gate Release cc 61 gt Linked Band4 Max Attenuation cc 62 gt Linked Bandi Compressor On Off cc 63 gt Linked Bandi Compressor OverEasy cc 64 gt Linked Band1 Compressor Auto On Off cc 65 gt Linked Bandi Compressor Threshold cc 66 gt Linked Band1 Compressor Gate Ratio cc 67 gt Linked Bandi Compressor Gain cc 68 gt Linked Bandi Compressor Attack cc 69 gt Linked Bandi Compressor Hold time cc 70 Linked Band1 Compressor Release cc 71 Linked Band2 Compressor On Off cc 72 Linked Band2 Compressor OverEasy cc 73 Linked Band2 Compressor Auto On Off cc 74 Linked Band2 Compressor Threshold cc 75 Linked Band2 Compressor Gate Ratio cc 76 Linked Band2 Compressor Gain cc 77 Linked Band2 Compressor Attack cc 78 Linked Band2 Compressor Hold time cc 79 Linked Band2 Compressor Release cc 80 gt Linked Band3 Compressor On Off cc 81 Linked Band3 Compressor OverEasy cc 82 Linked Band3 Compressor Auto On Off cc 83 Linked Band3 Compressor Threshold cc 84 Linked Band3 Compresso
14. Ballistics Sync input output using dbx proprietary clock chips for extremely low jitter sync With the patented dbx TYPE IV Conversion System your signal retains its analog warmth and character with the clarity demanded by today s digital standards Our patented TSE Tape Saturation Emulation processing makes it easy The discussion of the binary system sample rate frequencies and bit rates would easily take up an entire semester of college For the sake of brevity more is better Theoretically 96kHz 48 bit resolution is beyond the limits our ears can perceive The QUANTUM II s 96kHz A D D A s result in improved frequency response The QUANTUM II s 48 bit path gives you the hard and fast room required for a true 24 bit output This allows the use of only 1 stage of dither at the output where it belongs ii QUANTUM II User Manual d b X PROFESSIONAL PRODUCTS The engineers at dbx designed the QUANTUM II to be the Rosetta Stone of digital formats clocks and bit rates Whatever permutation of AES EBU or S PDIF is brought to you the QUANTUM II will be able to understand it and output whatever format you need 1 1What is QUANTUM II cont Imagine this scenario as an example A client brings in a stereo mix on a sampling workstation The mix is recorded at 96kHz 24 bit In order to create a CD compatible mix you need to con vert to 44 1kHz 16 bit With the QUANTUM II this is not a problem Simply follow the instruc tions
15. DO NOT INSTALL NEAR ANY HEAT SOURCES SUCH AS RADIATORS HEAT REGISTERS STOVES OR OTHER APPARATUS INCLUDING AM PLIFIERS THAT PRODUCE HEAT ONLY USE ATTACHM ENTS ACCESSORIES SPECIFIED BY THE M ANUFACTURER UNPLUG THIS APPARATUS DURING LIGHTNING STORMS OR WHEN UNUSED FOR LONG PERI ODS OF TIME WATER AND MOISTURE Appliance should not be used near water e g near a bathtub washbow kitchen sink laundry tub in a wet basement or near a swimming pool etc Care should be taken so that objects do not fall and liquids are not spilled into the enclo sure through openings POWER SOURCES The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance GROUNDING OR POLARIZATION Pr ecautions should be taken so that the gr ounding or polar ization means of an appliance is not defeated POWER CORD PROTECTION Power supply cords should be routed so that they are not like ly to be walked on or pinched by items placed upon or against them paying particular attention to cords at plugs convenience receptacles and the point where they exit from the appliance SERVICING To reduce the risk of fire or electric shock the user should not attempt to ser vice the appliance beyond that described in the operating instructions All other servic ing should be referred to qualified service personnel FOR UNITS EQUIPPED WITH EXTERNALLY ACCESSIBLE
16. FUSE RECEPTACLE Replace fuse with same type and rating only M ULTIPLE INPUT VOLTAGE This equipment may require the use of a different line cord attachment plug or both depending on the available power source at installation Connect this equipment only to the power source indicated on the equipment rear panel To reduce the risk of fire or electric shock refer servicing to qualified ser vice personnel or equiv alent POWER ON OFF SWITCH The Power Switch used in this piece of equipment DOES NOT break the connection from the M ains IMPORTANT SAFETY INSTRUCTIONS LITHIUM BATTERY WARNING CAUTION This product may contain a lithium battery There is danger of explosion if the battery is incorrectly replaced Replace only with an Eveready CR 2032 or equivalent Make sure the bat tery is installed with the correct polarity Discard used batter ies according to manufacturer s instructions ADVARSEL Lithiumbatteri Eksplosjonsfare Ved utskifting benyttes kun batteri som anbefalt av apparatfabrikanten Brukt batteri returneres apparatleverandgren ADVARSEL Lithiumbatteri Eksplosionsfare ved fejlagtig handtering U dskiftning m kun ske med batteri av samme fabrikat og type Lev r det brugte batteri tilbage til leverandgren VAROITUS Paristo voi r j ht jos se on virheellisesti asennettu Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppin Havit k ytetty paristo valmistajan ohjeiden m
17. Linked Band4 Compressor Hold time cc 97 Linked Band4 Compressor Release cc 98 Linked Band1 Limiter On Off cc 99 gt Linked Band1 Limiter Threshold cc 100 gt Linked Band1 Limiter Attack cc 101 gt Linked Band1 Limiter Hold time cc 102 gt Linked Band1 Limiter Release cc 103 gt Linked Band2 Limiter On Off cc 104 gt Linked Band2 Limiter Threshold cc 105 gt Linked Band Limiter Attack cc 106 gt Linked Band2 Limiter Hold time cc 107 gt Linked Band2 Limiter Release cc 108 gt Linked Band3 Limiter On Off cc 109 gt Linked Band3 Limiter Threshold d b X PROFESSIONAL PRODUCTS QUANTUM II User Manual 81 cc 110 gt Linked Band3 Limiter Attack cc 111 gt Linked Band3 Limiter Hold time cc 112 gt Linked Band3 Limiter Release cc 113 gt Linked Band4 Limiter On Off cc 114 gt Linked Band4 Limiter Threshold cc 115 gt Linked Band4 Limiter Attack cc 116 gt Linked Band1 Limiter Hold time cc 117 gt Linked Band4 Limiter Release cc 118 gt Linked TCM On Off cc 119 gt Linked TCM Time cc 120 gt Linked Output Effect Bits cc 121 gt Linked Output Effect Dither cc 122 gt Linked Output Effect Shape cc 123 gt Linked Output Effect Dither Out cc 124 gt Linked Normalize Effect On Off cc 125 gt Linked Normalize Effect Level cc 126 gt Linked Normalize Effect Ceiling cc 127 gt Linked Normalize Effect Type E 2 Linked Non Multi band Chains cc 0 gt Linked Type IV On Off cc 1 Linked Typ
18. S1 or S2 This lets you change between the 2 different digital noise shape algorithms See Figure H 2 in the Appendix pg 82 Dither Out All or Digital Sets the routing of the Dither output When All is selected the Dither is routed to the digital outputs and the D A When the Dither Out is set to Digital the dithered signal is sent to the digital outputs and the full 24 bit output is sent to the D A 4 17 MS middle side encoding decoding The MS or middle side encoding name comes from a mic ing technique The encod ing process takes left and right signals and uses their signal content to produce Middle and Side signals Additional processing can then be applied to these signals The middle signal is created by simply adding Left and Right signals together M L R This accentuates the common elements in the left and right channels or the mono part of the signal The Side signal is created by subtracting the Right signal from the Left S L R Any common elements will cancel leaving a stereo signal The Middle and Side signal can then be re combined to reproduce Left and Right signals d b X ProFessiONAL PRODUCTS QUANTUM II User Manual 45 UTILITIES dbx PROFESSIONAL PRODUCTS The QUANTUM II s Utility section contains many important operations These operations affect the QUANTUM II on a global scale This means that any changes that are made to this section affect all the presets This global setup helps keep
19. Updater software To update the latest Operating System hit the Update OS button Warning This will overwrite all exist ing setups Follow the Saving Setups section above to store off setups before updating to the latest version Be sure to follow the instructions and the Updater will download the new operating system A Transfer Progress box will appear If the above procedure fails put the unit into download mode by holding the prev page button while powering on the unit The screen will read Waiting for data in the top right corner At this point hit the Update OS button and follow the instructions A 4 3 Restoring Setups Start the Updater with unit power on Restore setups by hitting the Dump One Setup button From the open file dialogue box select the Setup to restore The Updater will download the setup Any new changes in a new operating system will be added to each setup as it is downloaded The display on the front panel of the Quantum II will prompt you to store the new setup Follow the procedure to store the setup 68 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS dbx Type IV Conversion System W hite Paper by Roger Johnson The dbx Type IV Conversion System is a proprietary analog to digital A D conversion process that combines the best attributes of digital conversion and analog recording processes to preserve the essence of the analog signal when it is converted to a digital format dbx Type IV not only
20. X PROFESSIONAL PRODUCTS QUANTUM II User Manual 35 The threshold is the signal level at which the gate opens Anything above the threshold pass es while signal that is lower than the threshold is attenuated Beware setting the threshold too high can cut off the tail end of signals as they fade out the sustain of a guitar note a held piano chord a reverb tail etc 4 3 Multiband Gate cont Ratio 1 1 0 to 1 15 per band or global This is where you decide how much downward expansion you want This ratio works back wards from that of the compressor or limiter If a ratio of 1 4 is selected a signal that is 1dB below the threshold will be reduced in level so that it becomes 4dB below the threshold Attack 0 1 to 200 m Sec per band or global As the signal reaches the threshold area the Attack control sets the speed at which the gate opens Use very fast attack times to catch the fronts of transient signals Hold 0 to 500 m Sec per band or global The Hold control sets the amount of time the gate is held open after the signal passes below the threshold point Release 360 to 5 dB Sec per band or global Release sets the speed at which the gate closes when the end of the Hold time is reached Max ATT O to Inf dB per band or global This sets the maximum amount of attenuation for the gate 4 4 Broadband Gate The QUANTUM II s broadband gate is available in the non multiband chain types It works just like the multiband
21. ask you where you want the program installed Once the software installation has been completed it is recommended that you restart your computer Make all network device connections prior to running the GUI interface The following information offers basic operation information of the Quantum II GUI interface 64 M BASIC OPERATION Once the unit has been connected boot up the GUI Interface by double clicking on the application icon When the program opens the first view you will see will be a block dia gram view of the signal path of the currently selected program This view has icon represen tations of the unit being used The following shows a basic view of the unit when the program is in operation Untiiled Quantum At this point you have access to all of the functions available in the Quantum II via the GUI Basic operation edits through the GUI include Program changes Effect module editing Program loading Program storing and setup selection and are per formed as follows To change programs place the mouse over the program number section top left hand side of the display click to select and use the UP and DOWN arrows to scroll up and down Once the desired program has been selected if autoload has not been selected from the utility menu on the physical unit already click on the LOAD button icon To select any one of the various effect chain setups click on the SETUPS icon and the display wil
22. b X PROFESSIONAL PRODUCTS QUANTUM II User Manual 33 4 2 Broadband Compression The broadband compressor can be used in both stereo or dual mono configurations Within the broadband compressor menu on the QUANTUM II the following parameters are user adjustable on all setups Compressor On Off Tums compressor module on and off OverEasy 1 10 The point when the QUANTUM II or any compressor starts to compress is the knee When the QUANTUM II starts to reduce the level of a signal abruptly right as it passes over the thresh old this is called hard knee compression OverEasy soft knee as it is sometimes called is when the volume of the sound is compressed gradually OverEasy compression starts to com press before the level of the signal reaches the threshold and reaches full compression after the level has gone above the threshold This OverEasy compression by its very nature sounds much smoother and more natural and will be used for most applications When it is gentle nat ural sounding or light compression that you are looking for the QUANTUM II has what we call Variknee VariKnee gives you ten levels of OverEasy compression to choose from 1 being almost hard knee and 10 being the most OverEasy 8 This lets you choose the exact knee that is needed for the dynamic effect you are looking for see Fig 4 1 Auto On Off When Auto Mode is on the QUANTUM II automatically sets the Attack Hold and Release times for the si
23. cc 43 Channel 1 Limiter Type cc 44 Channel 1 Limiter Attack cc 45 gt Channel 1 Limiter Hold time cc 46 gt Channel 1 Limiter Release cc 47 Channel 1 Limiter Over Easy cc 48 gt Channel 1 Limiter Auto cc 49 gt Channel 1 MONO TCM On Off cc 50 gt Channel 1 MONO TCM Time cc 51 Channel 1 Output Effect Bits cc 52 gt Channel 1 Output Effect Dither cc 53 Channel 1 Output Effect Shape cc 54 gt Channel 1 Output Effect Dither Out cc 55 gt Channel 1 Side Chain EQ On Off cc 56 Channel 1 Side Chain EQ Type cc 57 Channel 1 Side Chain EQ Band1 Fc cc 58 Channel 1 Side Chain EQ Band1 Slope cc 59 gt Channel 1 Side Chain EQ Band1 Level cc 60 gt Channel 1 Side Chain EQ Band2 Fc cc 61 Channel 1 Side Chain EQ Band2 Q cc 62 gt Channel 1 Side Chain EQ Band2 Level cc 63 gt Channel 1 Side Chain EQ Band3 Fc cc 64 Channel 1 Side Chain EQ Band3 Q cc 65 gt Channel 1 Side Chain EQ Band3 Level cc 66 gt Channel 1 Side Chain EQ Band4 Fc cc 67 Channel 1 Side Chain EQ Band4 Q cc 68 gt Channel 1 Side Chain EQ Band4 Level cc 69 gt Channel 1 Side Chain EQ Band5 Fc cc 70 Channel 1 Side Chain EQ Band5 Slope cc 71 gt Channel 1 Side Chain EQ Band5 Level cc 72 Channel 1 Ambience cc 73 Channel 1 Ambience Amount cc 74 Channel 1 Ambience Width cc 75 Channel 1 Ambience Threshold d b X PROFESSIONAL PRODUCTS QUANTUM II User Manual 83 cc 76 gt Channel 2 T
24. end user After expiration of the warranty a reasonable charge will be made for parts labor and packing if you choose to use the factory service facility In all cases you are responsible for transportation charges to the fac tory dbx will pay return shipping if the unit is still under warranty Use the original packing material if it is available Mark the package with the name of the ship per and with these words in red DELICATE INSTRUMENT FRAGILE Insure the package prop erly Ship prepaid not collect Do not ship parcel post L3Warranty This warranty is valid only for the original purchaser and only in the United States 1 The warranty registration card that accompanies this product must be mailed within 30 days after purchase date to validate this warranty Proof of purchase is considered to be the burden of the consumer 2 dbx warrants this product when bought and used solely within the U S to be free from defects in materials and workmanship under normal use and service d b X PROFESSIONAL PRODUCTS QUANTUM Il User Manual iii 1 3Warranty cont 3 dbx liability under this warranty is limited to repairing or at our discretion replacing defec tive materials that show evidence of defect provided the product is returned to dbx WITH RETURN AUTHORIZATION from the factory where all parts and labor will be covered up to a period of two years A Return Authorization number must be obtained from dbx by telephone The compan
25. in the Application Guide in section 5 Whether you are going from the workstation to a DAW DAT or a stand alone CD R the QUANTUM II covers all the digital sample rates 96 88 2 48 or 44 1kHz The QUANTUM II will dither down to 24 20 16 or 8 bits See the Appendix for all the possible conversions In addition to having all of the aforementioned features at your disposal the Quantum II now provides you with the convenience of optimizing all operational control through the use of the included dbx proprietary GUI software 1 2 Service Contact Info If you require technical support contact dbx Customer Service Be prepared to accurately describe the problem Know the serial number of your unit this is printed on a sticker attached to the rear panel If you have not already taken the time to fill out your warranty registration card and send it in please do so now Before you retum a product to the factory for service we recommend you refer to the manu al Make sure you have correctly followed installation steps and operation procedures If you are still unable to solve a problem contact our Customer Service Department at 801 568 7660 for consultation If you need to return a product to the factory for service you MUST contact Customer Service to obtain a Return Authorization Number No retumed products will be accepted at the factory without a Return Authorization Number Please refer to the Warranty below which extends to the first
26. lt Meter Monitor gt button held until appears on LCD 2 Press lt PREV PAGE to activate the reset sequence Any other button will abort the reset A 2 Change Default Startup Program The QUANTUM II turns on in Program Mode and is ready to use without any other keystrokes The QUANTUM II remembers the last program number used and stores that program number as the default startup program Occasionally you may wish to change this setting Do so by pressing and holding the PROGRAM button during power up A 3 Front Panel Lockout The QUANTUM Il s controls may also be locked effectively disabling the front panel Pressing and holding the UTILITY button while powering on the QUANTUM II displays an instruction screen telling you to press the PREV PAGE button to toggle the locked status When locked the program name line flashes between the name of the program and the text Locked Unlocking the QUANTUM II is accomplished the same way Note that when locked the QUANTUM II can still be controlled via MIDI operations A 4 Quantum Il Updater and Downloads The Updater software is used to store setups and update the Quantum II s software The Quantum II Updater uses MIDI to transfer information Be sure to make MIDI cable connections between the computer and the Quantum II prior to running the updater The Quantum II updater can be found on the dbx website at www dbxpro com A 4 1 Saving Setups The procedure for saving setups using the
27. mapped into the top 4 dB of the A D con verter This mapping is analogous to the signal compression effect that occurs when recording high level signals onto analog tape 70 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS TYPE IVTM Over Region A D Converter Linear Region Figure 2 Input Signal Levels Mapped to Type IV Over Region Noise Floor Fig 2 illustrates the mapping function in a different way Input levels are shown on the left of the graph while con verted levels are shown on the right Notice the mapping of large signal excursions to the 4 dB Type IV Over Region One might question the validity of such an approach trying to represent a lot of signal information within a smaller space The reason why this is not only valid but makes a whole lot of sense is that the digital codes in a con verter are linear or evenly spaced meaning that each consecutive code represents the same change in voltage of the input signal This implies that half of the digital codes are used to represent input signals whose voltage level is below 1 2 of the full scale A D input voltage while the other half of the codes are used to represent signals above 1 2 of the full scale A D input voltage This seems reasonable until you realize that 1 2 of the full scale input is only 6 dB below full scale So half of the codes are used to represent only the top 6 dB of signal information while the other half are used to represent
28. must use peak reading headroom meters On the other hand the forgiving nature of analog tape allows users of analog recording equipment the luxury of only needing to monitor the average level using VU meters often having no peak indicators whatsoever If only digital were more forgiving like d b X ProressiONAL PRODUCTS QUANTUM Il User Manual 69 analog we could really exploit its wide dynamic range and more completely capture the essence of the musical perfor mance Enter the dbx Type IV Conversion System Like its related predecessor technologies Type I Type II and Type III dbx Type IV succeeds in preserving the wide dynamic range of the original analog signal within a limit ed dynamic range medium Whereas Type I and Type II expand the dynamic range of analog tape and other limit ed dynamic range media and the simultaneous encode decode process of Type III similarly expands the limited dynamic range through minimum delay devices Type IV breaks new ground by greatly enhancing the useable dynam ic range of the analog to digital conversion process The dbx Type IV Conversion System combines proprietary analog and digital processing techniques to cap ture a much wider dynamic range than the A D converter could by itself preserving the maximum amount of informa tion from the analog signal This information is then encoded within the available bits of whichever A D converter is used This means that Type IV impro
29. release time is 2 seconds Too fast a release time can result in an audible volume jump while too slow a release time can result in the compression of signal that is not above the threshold This can cause volume drops in your signal that may not be desired The release control is not active while in auto mode MS On Off The Middle Side On Off parameter turns the Middle Side Compressor on or off effectively adding a middle side EQ in the side chain position Turning the MS parameter to on will tum the Compressor Gate and Limiter modules into middle side modules Note MS Compressor is only available in Stereo Linked 4 3 Multiband Gate A gate is a simple device It is either open or closed When a gate is open signal is allowed to pass When the gate is closed signal is not allowed to pass This lets you gate out background noise between tracks cut the ring out of a drum etc Downward expansion works on much the same concept Anything over a certain level is let by while any signal under that level is dropped in volume expanded downward The multiband gate on the QUANTUM II lets you control the amount of gating downward expansion separately in each frequency band range Within the Expander Gate menu on the QUANTUM II the following parameters are user adjustable Gate LOC On Off Local per band control or global on and off Band 1 to 4 On Off Tums on or off each independent band Threshold 75 to 0 dB per band or global d b
30. specific commands a split byte format is adopted for all data communication in this SY SEX implementation dd n 2 denotes the 1st through 7th bits of the nth byte and dd n 1 denotes th 8th bit of the nth byte Note All data that is requested or received is in split byte format unless noted otherwise F7 h System Exclusive End Message byte Procedures In the following section SYS HEAD refers to a valid System Exclusive header The System Exclusive header starts with the System Exclusive status byte and includes all bytes through the dbx device type F7 h is the System Exclusive Message End byte All SYSEX numbers in the format definition of each procedure are given as hexadecimal values along with this symbol h for clarification Binary numbers are identified with this symbol b Request One Setup 02h SYS HEAD 02 h yy 1 1 yy 1 2 yy 2 1 yy 2 2 zz1 zz2 F7 h When yy Setup Number 1 100 0 63h When zz 6Ch Linked Setup type is selected When zz 6Dh Dual Mono Setup type is selected When a Request One Setup procedure is received the QUANTUM II will respond with a Receive One Setup pro cedure Receive O ne Setup 43h SYS HEAD 43 h vv 1 1 vv 1 2 vv 2 1 vv 2 2 xx1 xx2 yy1 yy2 zz 1 1 zz 1 2 zz 2 1 zz 2 2 dd 1st 1 dd 1st 2 dd nth 1 dd nth 2 F7 h vv software version number When xx 00 h Dual Mono is selected When xx 01 h Linked Type is selected 78 QUANTUM II User Manual d b X PROFESSIONAL PRODUCT
31. the remaining 80 to 110 dB of signal information depending on the quality of the converter It seems not only reasonable but also desirable to utilize the increased signal resolution afforded by this density of digital codes to represent more input dynamic range in this region Another advantage of the logarithmic mapping of our dbx Type IV Conversion System is that it preserves the high frequency detail of the signal in the overload region Figs 3a through 3d illustrate what happens when you over load an A D converter without Type IV Fig 3a shows an input signal having both low frequency and high frequen cy components When the signal overloads or clips Fig 3b at the A D converter a disproportionate amount of high frequency signal information is lost compared with the low frequency information The low and high frequency com ponents of the signal are separated in Fig 3c to illustrate this more clearly As you can see the low frequency signal simply gets distorted but maintains most of its signal characteristics while sections of the high frequency signal are com pletely lost With dbx Type IV its mapping preserves high frequency signal information as illustrated in Fig 3d since the signal is confined within the Type IV Over Region and never clips The dashed line indicates the original input signal level Below the Over Region no mapping occurs while above this mapping keeps all peaks of the signal below the A D clip level
32. updater is as follows Start the Updater while running the current software Store a setup by hitting the Get One Setup button This will prompt you for a setup number in the Linked or Dual Mono setup library To find the setup number go to a Stereo Linked or Dual Mono Program of the unit From the Program screen pressing the Channel button enters the Stereo Linked or Dual Mono Setup Libraries respectively Tum the encoder counter clockwise until the beginning of the setup library has been reached Slowly turn the encoder clockwise and count each setup until you reach the setup you would like to upload This will give you the setup number Note and record the setup name Return to the Updater on your computer Select either Linked or Dual Mono and select the Setup number using the list box Hit the OK button A save dialogue box will appear The file name should be the same as the setup name noted above For example from the factory User 1 is Default MB in the Stereo Linked Setup library and Mono Def in the Dual Mono Setup library This dialogue box also allows you to save as a SysEx file syx or as a MIDI file mid The SysEx file type is preferred Hit the save button to upload and save the Setup Repeat the process above until all Setups you need are uploaded and saved A 4 2 Updating Quantum Software The Quantum II Updater is the perfect tool for loading downloading the most current software updates With MIDI cables in place start the
33. will be expanded The QUANTUM II will actu ally output a signal larger then the input At a ratio of 0 75 1 if a signal goes over the thresh old by 0 75dB the unit will output a signal that is 1 dB over the threshold 34 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS 4 2 Broadband Compression cont Gain 20 to 20 dB This is used to compensate for the gain lost during compression By using heavy compression on a signal and than boosting the signal with the output gain we can than create a signal that sounds much louder than it was Attack 0 1 m Sec to 200 m Sec Attack is how fast the compressor starts to compress the signal after it passes the threshold Fast attack is useful when dealing with lots of fast transients The attack control is not active when in auto mode Hold 0 to 500 m Sec Hold is the time the QUANTUM II remains in compression after the signal has dropped below the threshold A longer hold time is useful in smoothing out the sound when compressing sev eral fast peaks that are fairly close together in time In general some hold time helps to make the compression sound more natural but too much can over compress your signal making for an unwanted drop in level The hold control is not active while in auto mode Release 360 dB Sec to 5 dB Sec Release is how fast the QUANTUM II comes out of compression The release is in dB per sec ond For example if release is set to 5 dB sec signal at 10dB of gain reduction
34. 1 gt Channel 2 Compressor Threshold cc 112 gt Channel 2 Compressor Gate Ratio cc 113 gt Channel 2 Compressor Gain cc 114 gt Channel 2 Compressor Attack cc 115 gt Channel 2 Compressor Hold time cc 116 gt Channel 2 Compressor Release cc 117 Channel 2 Limiter On Off cc 118 gt Channel 2 Limiter Threshold cc 119 gt Channel 2 Limiter Type cc 120 gt Channel 2 Limiter Attack cc 121 gt Channel 2 Limiter Hold time cc 122 Channel 2 Limiter Release cc 123 gt Channel 2 Limiter Over Easy cc 124 gt Channel 2 Limiter Auto cc 125 Channel 2 MONO TCM On Off cc 126 gt Channel 2 MONO TCM Time cc 127 Channel 2 Output Effect Bits E 4 Linked Multi band with De Esser Chain cc 0 gt Linked Type IV On Off cc 1 gt Linked Type IV Color cc 2 gt Linked Type IV Level cc 3 gt Linked or Middle Parametric EQ On Off cc 4 gt Linked or Middle Parametric EQ Position cc 5 gt Linked or Middle Parametric EQ Band1 Freq cc 6 gt Linked or Middle Parametric EQ Bandi Slope cc 7 gt Linked or Middle Parametric EQ Band1 Lvl cc 8 gt Linked or Middle Parametric EQ Band2 Freq cc 9 gt Linked or Middle Parametric EQ Band2 Q cc 10 gt Linked or Middle Parametric EQ Band2 Lvl cc 11 gt Linked or Middle Parametric EQ Band3 Freq cc 12 gt Linked or Middle Parametric EQ Band3 Q cc 13 gt Linked or Middle Parametric EQ Band3 Lvl cc 14 gt Linked or Middle Parametric EQ Band4 Freq
35. 1 2 dB steps Band 2 3 4 FC 20 0 Hz to 20 0 kHz This controls the center point for the parametric EQ Q 0 25 to 16 0 Sets the width of the boost cut Level 12 to 12 dB Amount of boost or cut Adjustable in 1 2 dB steps Band 5 FC 20 0 Hz to 20 0 kHz This controls the corner frequency for the high frequency shelving EQ band Slope 3 to 12 dB Octave Sets the slope of the shelf Level 12 to 12 dB Amount of boost or cut Adjustable in 1 2 dB steps 40 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS 4 8 XO ver There are three crossover points on the QUANTUM II creating 4 bands Tuning them allows you to select which frequencies to process with which of the multiband dynamics processors The QUANTUM II uses phase compensated Butterworth 1st and 3rd order filters Within the crossover menu on the QUANTUM II the following parameters are user adjustable Edge 1 Fc 20 0 Hz to 5 0 kHz Sets the crossover point between bands 1 and 2 Edge 2 Fc 40 0 Hz to 10 0 kHz Sets the crossover point between bands 2 and 3 Edge 3 Fc 79 0 Hz to 20 0 kHz Sets the crossover point between bands 3 and 4 Slope 6 or 18 dB Octave per band Your choice of 2 different slopes for each of the 3 crossover points When in the broadband mode not only do you have access to the equalizer but also another EQ in the sidechain Having EQ in the sidechain lets you boost or cut various frequencies prior to the dynamics processor detector Cutti
36. 5 with Amendments 1 2 3 EMC EN 55013 1990 EN 55020 1991 Supplementary Information The product herewith complies with the require ments of the Low Voltage Directive 73 23 EEC and the EMC Directive 89 336 EEC as amended by Directive 93 68 EEC dbx Professional Products Vice President of Engineering 8760 S Sandy Parkway Sandy Utah 84070 USA May 15 2001 European Contact Your Local dbx Sales and Service Office or Harman Music Group 8760 South Sandy Parkway Sandy Utah 84070 USA Phone 801 568 7660 fax 801 568 7662 Introduction 1 1 What is QUANTUM IN eee ii 1 2 Service Contact Info wee ccc ccscessessessssesees iii LOW tail teret ice e ee iii Section 1 Getting Started 1 1 Rear Panel Connections 2 1 2 Front Patel errore retenta tote 2 1 3 Quantum II Wizard 4 14 Signal Path aniram indiani 4 1 5 Mastering and the Quantum II 5 Section 2 Navigation 2 1 Multiband Compressor eene 8 2 2 Broadband COMpressor 9 2 3 Multiband Gate 10 2 4 Broadband Gate n 11 2 5 Multiband Limiter eene 12 2 6 Broadband Limiter sess 13 Def EQ XOVER idet n 14 2 8 EO SEQ eed aeter aere ey 15 2 9 Norm OUtput nenn 16 2 10 Oneri 17 2 ET UOS esten RR RO oda 18 Section 3 Software O perations A eee cnet eer teer eh 20 3 2 P
37. CH 1 Setup or CH 2 Setup if you have been editing a dual mono program If you have been working with a linked program your second choice will be Link Setup Make your selection by pressing the STORE button again Remember that there is room in the QUANTUM II to store 50 linked setups and 50 mono setups in addition to the factory setups 5 en Pros Chi Setur d b X ProressionaL PRODUCTS QUANTUM II User Manual 25 3 3 Saving a Setup cont 2 To name your setup there are instructions for you in the Curve Window Press STORE when you are done 3 You now must choose what you want to do with the setup you are going to save You have two choices you may write over another setup or you may make a new one Replace Old Notice that as you write over an old setup all other programs will now recall the newly saved setup To replace an old setup move the cursor to the Replace Old choice and press STORE You are given a choice of which setup to replace Using the DATA WHEEL scroll to the name of the setup you wish to replace Notice that as you replace a setup all other programs that recall that setup will now recall the newly saved setup using the new setup name Store New 1 To store a new setup choose Store New after pressing the STO RE button After you are done press STORE once again You now must choose a place for the new setup to be placed in the library The name of your new setup is displayed on the m
38. Compressor page gives the engineer control over all the parameters that are needed to adjust the multiband compressor The Multiband compressor can be adjusted either as a unit or theindividual bands can be adjusted separately By pushing the DATA WHEEL the different parameters on a page can be adjusted and by pushing the NEXT PAGE and PREV PAGE buttons all the compressor parameters can be accessed for a complete list of com pressor parameters see Section 3 Software Operations The different bands of the multi band compressor can be accessed by either using the EDIT ALI BAND button or by pushing the compressor button Fach additional push of the compressor button allows access to the next band Setting up your compressor you decide to compress bands one and two with a ratio of 3 1 You set the threshold for band one at 22 dBFS and the threshold for band two you set to 20 dBFS Remember that in multiband compression the individual bands have less energy than the over all mix so the compression threshold must be lower These settings seems to work well for bands one and two if the gain is set to 4 5 dB for band one and 3 5 dB for band two Band three requires less compression to control it so you set the ratio to 1 5 1 with the threshold set to 26 dBFS and the gain to 2 0 dB The high frequencies require a little compression to keep them in line with the rest of the mix so you set band four s ratio to 2 1 with the threshold set to 30 dBFS and t
39. Live As colours of the cores in the mains lead of this appliance may not correspond with the coloured markings identifying the terminals in your plug proceed as follows The core which is coloured green and yellow must be connected to the terminal in the plug marked with the letter E or with the earth symbol or coloured green or green and yellow The core which is coloured blue must be connected to the terminal marked N or coloured black The core which is coloured brown must be connected to the terminal marked L or coloured red This equipment may require the use of a different line cord attachment plug or both depending on the available power source at installation If the attachment plug needs to be changed refer servicing to qualified service personnel who should refer to the table below The green yellow wire shall be connected directly to the units chassis Normal WARNING If the ground is defeated certain fault conditions in the unit or in the system to which it is connected can result in full line voltage between chassis and earth ground Severe injury or death can then result if the chas sis and earth ground are touched simultaneously WARNING FOR YOUR PROTECTION PLEASE READ THE FOLLOWING KEEP THESE INSTRUCTIONS HEED ALL WARNINGS FOLLOW ALL INSTRUCTIO CLEAN ONLY WITH A DAM P CLOTH DO NOT BLOCK ANY OF THE VENTILATION OPENINGS INSTALL IN ACCORDANCE WITH THE M ANUFACTURERS INSTRUCTIONS
40. NC Internal Crystals SC48 SC44 1 48 gt 96 48 gt 88 2 48 gt 48 48 44 1 44 1 gt 96 44 1 gt 88 2 44 1 gt 48 Note D A is converting at the rate set for the System Clock Source not the SRC rate 96 gt 88 2 96 gt 48 88 2 gt 48 88 2 gt 44 1 44 1 gt 48 44 1 gt 44 1 96 gt 44 1 48 gt 44 1 96 gt 44 1 88 2 gt 44 1 48 gt 44 1 44 1 gt 44 1 96 gt 44 1 88 2 gt 44 1 48 gt 44 1 44 1 gt 44 1 48 gt 44 1 44 1 gt 44 1 Audio Input Source System Clock Source Sample Rate Conversion Clock Source Analog Super Clock Input BNC AESEBU or SPDIF Input 048 SC44 1 48 gt 96 48 gt 88 2 48 548 48 gt 44 1 48 44 1 44 1 gt 96 44 1 gt 88 2 44 1248 44 1 gt 44 1 Note D A is converting at the rate set for the System Clock Source not the SRC rate Note BNC output frequency is the System Clock rate not the SRC rate AESEBU or SPDIF Input AESEBU or SPDIF Input OFF 96k 88 2k 48k 44 1k AESEBU or SPDIF Input AESEBU or SPDIF Input Internal Crystals 96k 88 2k 48k 44 1k 96 596 96 gt 88 2 96 gt 48 96 gt 44 1 88 2 gt 96 88 2 gt 88 2 88 2 gt 48 88 2 gt 44 1 48 gt 96 48 gt 88 2 48 248 48 gt 44 1 44 1 gt 96 44 1 gt 88 2 44 1 gt 48 44 1 gt 44 1 Note The sample rate conversion takes place in the digital receiver All processing takes place at the converted rate AESEBU or SPDIF Input AESEBU or SPDIF Input Word Input BNC 96k 88 2k 48k 44 1k 96 gt 96 96 gt 88 2 96 gt 48 96 gt 44 1 88 2 gt 96 88
41. Navigating the Multiband Limiter Navigate through the Pages by depressing Next Page or Prev Page successively until arriving at the desired Page PREV PAGE NEXT PAGE gt LIMITER A All Limiter On Loc Off OverEasy Navigate through Threshold Auto On Off the bands by Bands depressing the Limiter button Toren CHELA ivelv until an n verEasy SUGSESSI s unt Band Threshold Auto On Off arriving at the 1 Band 2 On Off OverEasy Band 3 On Off OverEasy BUS Band 4 On Off OverEasy E desired band BEBE Navigate through the Parameters on each Page by depressing the data wheel Rotating the data wheel changes the value of the Parameter 12 QUANTUM II User Manual d b X PROFESSIONAL PRODUCTS 2 6 Broadband Limiter Navigating the Broadband Limiter Navigate through the Pages by depressing Next Page or Prev Page successively until arriving at the desired Page PREV PAGE NEXT PAGE gt Limiter On Loc Off OverEasy amp Threshold Auto On Off Type LIMITER Navigate through the Parameters on each Page by depressing the data wheel Rotating the data wheel changes the value of the Parameter d b X ProressionaL PRODUCTS QUANTUM II User Manual 13 Navigating the Multiband EQ X Over Navigate through the Pages by depressing Next Page or Prev Page successively until arriving at the desired Page PREV PAGE NEXT PAGE gt EQ XOVER Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Th
42. Post EQ W hat the QUANTUM II screen shows for Post ES Comp Limiter Stereo Input Gate CH1 Stereo Come gt gt gt IE gt Limiter cH2 gt Adut _ Am gt Dither gt Norm Noise gt PEQ gt gt Shape gt Gate Comp Limiter Crossover Woy vr yw Gate Comp Limiter Sa AN 1774 Y ChainType Stereo Multi Band with Ambience and MS EQ W hat the QUANTUM Il qm screen shows a T S Im Gate gt gt Comp Stereo Input gt Limiter N Gate gt gt Middle omp Dither CHI gt EE Side gt Ambience gt gt Limiter gt Nom gt Noise CH2 _ gt gt EQ gt gt gt Shape gt gt Comp mr 7 Gate gt Comp gt Limiter d b X ProressionaL PRODUCTS QUANTUM II User Manual 21 3 1 FX Chains cont ChainType Stereo Linked Broadband with Pre EQ PEQ may be Pre or Post Dynamics W hat the QUANTUM Il screen shows for Pre moo bid CENE S u Sh Adjust o gt Ambience gt De Esser gt cone gt Norm Noise gt cH gt gt 3 r Lim gt Shape ChainType Stereo Linked Broadband with Post EQ W hat the QUANTUM Il screen shows for Post Side C xU arl Es Dither i gt Ambience De Esser gt Post gt Nom Noise gt ci Ad st PQ gt Shape gt ChainType Stereo Linked Broadband with MS EQ always pre dynamics
43. S yy The Setup number 1 100 00 63h ZZ Byte Count dd n Program data The Receive One Setup procedure is used to load a Setup into the QUANTUM II The number of setup bytes to be received n is different for each setup If the QUANTUM II is sent a Receive One setup procedure where the setup number is not a valid RAM destination it will be ignored Request Bulk Dump 49h SYS HEAD 49 h F7 h When a Request Bulk Dump procedure is received the QUANTUM II will respond with a Receive Bulk Dump pro cedure Receive Bulk Dump 48h SYS HEAD 48 h dd 1st 1 dd 1st 2 dd nth 1 dd nth 2 F7 h dd n Bulk Dump Data The Receive Bulk Dump procedure is used to load all User Programs into the QUANTUM II A software version number is imbedded in the data Receive Key Scan Code 54h SYS HEAD 54 h cc F7 h cc Code for the Key Scan note there is only one byte not two The Receive Key Scan Code procedure is used to emulate a button press on the front panel of the QUANTUM II See the Key Scan Code Maps for a list of Key Scan codes The device will respond with a Receive Key Accepted procedure Encoder controls are included to allow you to emulate encoder moves as well as button presses Config is included to make it accessible through SY SEX commands even though it is not represented by its own button Receive Key Accepted 56h SYS HEAD 56 h cc1 cc2 F7 h cc Code echoed for the Key Scan received 00 h if key
44. THER button to access TYPE IV conversion system refer to Appendix B 11 Press STORE if you wish to save non utility changes refer to Section 3 4 54 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS 6 2 Digital Mastering Hardware 1 Connect AES EBU or S PDIF output of digital source to the QUANTUM II s AES EBU or S PDIF input 2 Connect the QUANTUM II s AES EBU or S PDIF output to AES EBU S PDIF of DAT machine Software 1 Press the UTILITY button to enter the QUANTUM IT s utility section Change the INPUT to AES EBU or S PDIE 2 Change the CLOCK to AES EBU or S PDIF Press the NO RM OUTPUT button twice This accesses the dither and noise shaping of the output module Set the Bits to 16 Choose which type of dither you would like to use refer to Section 4 16 Choose which type of noise shaping you would like to use refer to Section 4 16 Set the Dither Out to All if monitoring dither Press STORE if you wish to save non utility changes refer to Section 3 4 w CON OT d b X PROFESSIONAL PRODUCTS QUANTUM II User Manual 55 6 3 DAW to DAT Hardware 1 Connect AES EBU or S PDIF output of digital source to the QUANTUM II s AES EBU or S PDIF input 2 Connect the QUANTUM II s AES EBU or S PDIF output to AES EBU S PDIF of DAT machine Software 1 Press the UTILITY button to enter the QUANTUM IT s utility section Change the INPUT to AES EBU or S PDIE 2 Change the CLOCK to AES EBU or S PDIF P
45. This is essential for accurate monitoring at different points along the chain With an analog input and downstream digital units using the QUANTUM II as a master clock will keep the digital signal accurate While the differences in jittery sync without a master clock may be miniscule it is better to reduce the variables in favor of accuracy Running a master clock that all downstream digital units sync to is just a good idea Make sure that when you are using the SuperClock modes you are on the correct settings SC 44 1 SC 48 etc these settings are designed especially for SuperClock If these settings are not used syncing errors will occur The following chart shows the possible clock modes Possible Clock Modes Audio Input Source System Clock Source Sample Rate Conversion Clock Source Analog Internal Crystals Off 96k 88 2k 48k 44 1k Analog Internal Crystals Internal Crystals 96k 88 2k 48k 44 1k 96 gt 88 2 96 gt 48 96 gt 44 1 88 2 gt 96 88 2248 88 2 244 1 48 596 48 gt 88 2 48 gt 44 1 44 1 gt 96 Note D A is converting at the rate set for the System Clock Source not the SRC rate Analog Internal Crystals AESEBU or SPDIF Input 96k 88 2k 48k 44 1k 96 gt 96 88 2 gt 96 48 gt 96 48 gt 88 2 48 gt 48 44 1 gt 48 44 1 gt 44 1 44 1 gt 96 44 1 gt 88 2 Note D A is converting at the rate set for the System Clock Source not the SRC rate 96 gt 88 2 96 gt 48 88 2 gt 88 2 88 2 gt 48 88 2 gt 44
46. a higher threshold will let you take advantage of this if you choose to Digital recording is far less forgiving and a correctly set limiter threshold will prevent any ugly digital overs from ruining a take By dropping the threshold down below the bulk of the signal level we can then be limiting all the time This will effectively take all the dynamics out of a signal and is used as a form of extra heavy compression OverEasy Off to 10 per band or global There are ten levels of OverEasy that can be used on the QUANTUM II s limiters d b X ProressionaL PRODUCTS QUANTUM II User Manual 37 Auto On Off LOC and On Off When auto is tumed on the QUANTUM II will continuously set the attack hold release con trols itself It can be set globally or locally per band 4 5 Multiband Limiting cont Attack 01 to 200 m Sec per band or global This is the speed at which the QUANTUM II limiter starts to compress the signal once it has crossed the threshold Set the attack time longer for lower frequency bands and shorter for higher frequency bands Hold 0 to 500 m Sec per band or global Hold is the time the limiter stays in gain reduction after the signal level has dropped below threshold Hold is useful when you want the limiter to function for a period of time after it has been triggered Be careful not to set the hold time too long as it will not release in time Release 360 to 5 dB Sec per band or global just like the release tim
47. and 1 to 4 OryOff Tums on or off each independent band OverEasy 1 10 per band or global The point when the QUANTUM II or any compressor starts to compress is the knee When the QUANTUM II starts to reduce the level of a signal abruptly right as it passes over the thresh old this is called hard knee compression OverEasy 9 soft knee as it is sometimes called is when the level of the signal is compressed gradually OverEasy compression starts to com press before the level of the signal reaches the threshold and reaches full compression after the volume has gone above the threshold This OverEasy compression by its very nature sounds much smoother and more natural and will be used for most applications When it is gentle nat ural sounding or light compression that you are looking for the QUANTUM II has what we call Variknee VariKnee gives you ten levels of OverEasy compression to choose from 1 being almost hard knee and 10 being the most OverEasy 8 This lets you choose the exact knee that is needed for the dynamic effect you are looking for Fig 4 1 Auto LOC On Off and Auto On Off Auto can be turned on off per band or globally When Auto mode is on the QUANTUM IT automatically sets the Attack Hold and Release times for the signal The auto mode constant ly adjusts these parameters in real time for optimum performance from the unit 32 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS 4 1 Multiband Compression
48. and a PC for utilization of the included GUI software Sync In and Out Connectors BNC connectors are provided for both clock in and out functions The QUANTUM II s clock chips are dbx custom VCXO chips designed for low jitter performance You may use the QUANTUM II as a master clock source having other equipment slave to the QUANTUM II or you may slave the QUANTUM IT s clock to any other source device For more information on the QUANTUM IT s sync functions see Sync in the Utilities section S PDIF Digital Connectors see Utility Section The QUANTUM II provides S PDIF digital input and output through the RCA connectors on the rear panel The analog outputs still operate regardless of the selection of the digital output format AES EBU Digital Connectors XLR connectors provide AES EBU input and output IEC Power Cord Receptacle The QUANTUM II comes with an International power supply that will accept voltages ranging from 100V 240V at frequencies from 50Hz 60Hz An IEC cord is included 1 2 Front Panel Analog Input and Output Level Controls These controls adjust the analog audio levels of the QUANTUM II at the input and output stages Note that the analog output level controls do not affect any digital processing or digital output levels 2 QUANTUM II User Manual d b X PROFESSIONAL PRODUCTS The QUANTUM II is designed to interface as easily as possible to your system The QUAN TUM II uses wide ranging analog input and out
49. and3 Q cc 94 Side Parametric EQ Band3 Level cc 95 Side Parametric EQ Band4 Fc cc 95 gt Side Parametric EQ Band4 Q cc 97 Side Parametric EQ Band4 Level cc 98 Side Parametric EQ Band5 Fc cc 99 Side Parametric EQ Band5 Slope cc 100 gt Side Parametric EQ Band5 Level cc 101 gt Side Side Chain EQ On Off cc 102 gt Side Side Chain EQ Type cc 103 gt Side Side Chain EQ Band1 Freq cc 104 gt Side Side Chain EQ Band1 Slope cc 105 gt Side Side Chain EQ Band1 Lvl cc 106 gt Side Side Chain EQ Band2 Freq cc 107 Side Side Chain EQ Band2 Q cc 108 gt Side Side Chain EQ Band2 Lvl cc 109 gt Side Side Chain EQ Band3 Freq cc 110 gt Side Side Chain EQ Band3 Q cc 111 gt Side Side Chain EQ Band3 Lvl cc 112 gt Side Side Chain EQ Band4 Freq cc 113 gt Side Side Chain EQ Band4 Q cc 114 Side Side Chain EQ Band4 Lvl cc 115 gt Side Side Chain EQ Band5 Freq cc 116 Side Side Chain EQ Band5 Slope cc 117 gt Side Side Chain EQ Band5 Lvl cc 118 gt Side Gate On Off cc 119 gt Side Gate Threshold cc 120 gt Side Gate Gate Ratio cc 121 Side Gate Attack cc 122 Side Gate Hold time cc 123 Side Gate Release cc 124 Side Max Attenuation cc 125 gt Side Compressor On Off cc 126 gt Side Compressor OverEasy cc 127 Side Compressor Auto On Off E 3 Dual Mono Chain cc 0 Channel 1 Type IV On Off cc 1 Channel 1 Type IV Color cc 2 Channel 1 EQ On Off c
50. c 3 Channel 1 EQ Position cc 4 gt Channel 1 EQ Type cc 5 gt Channel 1 EQ Band1 Freq cc 6 gt Channel 1 EQ Band1 Slope cc 7 gt Channel 1 EQ Bandi Lvl cc 8 Channel 1 EQ Band2 Freq cc 9 Channel 1 EQ Band2 Q cc 10 gt Channel 1 EQ Band2 Lvl cc 11 gt Channel 1 EQ Band3 Freq cc 12 gt Channel 1 EQ Band3 Q cc 13 Channel 1 EQ Band3 Lvl cc 14 gt Channel 1 EQ Band4 Freq cc 15 Channel 1 EQ Band4 Q cc 16 gt Channel 1 EQ Band4 Lvl cc 17 gt Channel 1 EQ Band5 Freq cc 18 gt Channel 1 EQ Band5 Slope cc 19 gt Channel 1 EQ Band5 Lvl cc 20 Channel 1 De Esser On Off cc 21 Channel 1 De Esser HP Frequency cc 22 Channel 1 De Esser Amount cc 23 Channel 1 De Esser Type cc 24 Channel 1 De Esser Width cc 25 Channel 1 Gate On Off cc 26 Channel 1 Gate Threshold cc 27 Channel 1 Gate Gate Ratio cc 28 Channel 1 Gate Attack cc 29 Channel 1 Gate Hold time cc 30 Channel 1 Gate Release cc 31 Channel 1 Max Attenuation cc 32 Channel 1 Compressor On Off cc 33 Channel 1 Compressor OverEasy cc 34 Channel 1 Compressor Auto On Off cc 35 gt Channel 1 Compressor Threshold cc 36 Channel 1 Compressor Gate Ratio cc 37 Channel 1 Compressor Gain cc 38 Channel 1 Compressor Attack cc 39 Channel 1 Compressor Hold time cc 40 Channel 1 Compressor Release cc 41 gt Channel 1 Limiter On Off cc 42 Channel 1 Limiter Threshold
51. cc 15 gt Linked or Middle Parametric EQ Band4 Q cc 16 gt Linked or Middle Parametric EQ Band4 Lvl cc 17 gt Linked or Middle Parametric EQ Band5 Freq cc 18 gt Linked or Middle Parametric EQ Band5 Slope cc 19 gt Linked or Middle Parametric EQ Band5 Lvl cc 20 gt Linked Stereo Adjust On Off cc 21 gt Linked Stereo Adjust Balance cc 22 gt Linked Stereo Adjust Stereo Mono cc 23 gt De Esser On Off cc 24 gt De Esser HP Frequency cc 25 gt De Esser Amount cc 26 gt De Esser Type cc 27 gt De Esser Width cc 28 gt Linked Crossover Edge1 Fc cc 29 Linked Crossover Edge1 Slope cc 30 gt Linked Crossover Edge2 Fc cc 31 gt Linked Crossover Edge2 Slope cc 32 gt Linked Crossover Edge3 Fc cc 33 gt Linked Crossover Edge3 Slope cc 34 Linked Band1 Gate On Off cc 35 Linked Band1 Gate Threshold cc 36 gt Linked Band1 Gate Gate Ratio cc 37 Linked Band1 Gate Attack cc 38 Linked Band1 Gate Hold time cc 39 Linked Band1 Gate Release cc 40 Linked Band1 Max Attenuation cc 41 Linked Band2 Gate On Off cc 42 Linked Band2 Gate Threshold cc 43 Linked Band2 Gate Gate Ratio cc 44 Linked Band2 Gate Attack cc 45 Linked Band2 Gate Hold time cc 46 Linked Band2 Gate Release cc 47 Linked Band2 Max Attenuation cc 48 Linked Band3 Gate On Off cc 49 Linked Band3 Gate Threshold cc 50 gt Linked Band3 Gate Gate Ratio cc 51 Linked Band3 Gate
52. d De Esser DE The De esser also has a threshold meter The threshold meter for this element is also displayed in the upper left corner When the plus sign is darkened the threshold has been exceeded and De Essing is being applied to the signal 3 7 Monitor Outputs Monitoring separate bands is a useful and easily accomplished function in the QUANTUM II By pressing the METER MONITOR button twice you are able to access the monitor selection page Use the DATA WHEEL to select at which point you would like to monitor The headphone graph ic and arrow change to show the point in the signal chain you are monitoring The text under Monitor Out shows which band and position you are currently selecting This is a very impor tant option As you are adjusting dynamic processing within individual bands it helps to monitor the changes made to those bands Band 1 pre monitor position is located just after the crossover before the gate compressor and limiter Band 1 post is located after the gate compressor and limiter before the Normalizer and output The other bands 2 4 operate in the same fashion dx moresco moves EEE Wmkzkx x lt m_ t 2 30 M bic PARAMETERS dbx PROFESSIONAL PRODUCTS 4 1 Multiband Compression Within the multiband compressor menu on the QUANTUM II the following parameters are user adjustable on all setups Compressor LOC On Off Local per band control or global on and off B
53. d b x PROFESSIONAL PRODUCTS apri ROCESSOR IMPORTANT SAFETY INSTRUCTIONS RISK OF ELECTRIC SHOCK DO NOT OPEN A A ATTENTION RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR WARNING To REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE The symbols shown above are inter nationally accepted symbols that warn of potential hazards with electrical products The lightning flash with arrow point in an equilateral triangle means that there are danger ous voltages present within the unit The exclamation point in an equilater al triangle indi cates that it is necessary for the user to refer to the owner s manual These symbols warn that there are no user serviceable parts inside the unit Do not open the unit Do not attempt to service the unit yourself Refer all servicing to qualified personnel Opening the chassis for any reason will void the manufacturer s warranty Do not get the unit wet If liquid is Spilled on the unit shut it off immediately and take it to a dealer for service Disconnect the unit dur ing storms to prevent damage SAFETY INSTRUCTIONS NOTICE FOR CUSTOMERS IF YOUR UNIT IS EQUIPPED WITH A POWER CORD WARNING THIS APPLIANCE MUST BE EARTHED CAUTION EQUIPMENT IS NOT DISCONNECTED FROM MAINS WHEN SWITCH IS IN THE OFF POSITION The cores in the mains lead are coloured in accordance with the following code GREEN and YELLOW Earth BLUE Neutral BROWN
54. d controlled in the QUANTUM II Changes that are made to the QUANTUM II s dynamic processing can be monitored visually and aurally at several different points in the chain Storing and organizing user and factory setups in task specific libraries is also covered in this section The Quantum II now offers MS or middle side encoding which comes from a mic ing technique The encoding process takes left and right signals and uses their signal content to produce Middle and Side signals Additional processing can then be applied to these signals The middle signal is created by sim ply adding Left and Right signals together M L R This accentuates the common elements in the left and right channels or the mono part of the signal The Side signal is created by sub tracting the Right signal from the Left S L R Any common elements will cancel leaving a stereo signal The Middle and Side signal can then be re combined to reproduce Left and Right signals By following the outlined steps you will quickly understand the usage and ben efits of the QUANTUM II s storage system 3 1 FX Chains The following charts show the signal flow through the QUANTUM II s FX chains Note that the location of the parametric EQ PEQ changes according to Pre Post settings ChainType Stereo Multi Band with De Esser and Pre EQ PEQ may be Pre or Post Dynamics W hat the QUANTUM Il screen shows for Pre Gate T Es Comp Stereo Input Limiter gt a gt comp Dith
55. e EQ XOver mmm n button toggles EQ Pos Pre Post between Type EQ and XOver Depress once to Edge 1 FC Edge 2 FC Edge 3 FC ge ge ge access EQ and a XOver Slope e Slope second time for XOver EQ XOVER Navigate through the Parameters on each Page by depressing the data wheel Rotating the data wheel changes the value of the Parameter 14 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS Navigating the Broadband EQ SEQ Navigate through the Pages by depressing Next Page or Prev Page successively until arriving at the desired Page 4 PREV PAGE NEXT PAGE gt AA _ 08l81 o allie Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 The EQ SEQ button toggles EB E between EQ and SEQ Depress once to access EQ and a SEQ second time for SEQ EQ XOVER Navigate through the Parameters on each Page by depressing the data wheel Rotating the data wheel changes the value of the Parameter d b X ProressionaL PRODUCTS QUANTUM II User Manual 15 2 9 Norm Output Navigating Norm Output Navigate through the Pages by depressing Next Page or Prev Page successively until arriving at the desired Page PREV PAGE NEXT PAGE gt Page 1 Page 2 NORM OUTPUT Navigate through the bands by depressing the Norm Output NORM OUTPUT button successively until arriving at the desired band Normalize Normalize On Off Level Type Output Navigate through the Para
56. e IV Color cc 2 gt Linked or Middle Parametric EQ On Off cc 3 Linked or Middle Parametric EQ Position cc 4 gt Linked or Middle Parametric EQ Type cc 5 Linked or Middle Parametric EQ Band1 Freq cc 6 Linked or Middle Parametric EQ Band1 Slope cc 7 gt Linked or Middle Parametric EQ Band1 Lvl cc 8 Linked or Middle Parametric EQ Band2 Freq cc 9 Linked or Middle Parametric EQ Band2 Q cc 10 gt Linked or Middle Parametric EQ Band2 Lvl cc 11 gt Linked or Middle Parametric EQ Band3 Freq cc 12 Linked or Middle Parametric EQ Band3 Q cc 13 Linked or Middle Parametric EQ Band3 Lvl cc 14 Linked or Middle Parametric EQ Band4 Freq cc 15 Linked or Middle Parametric EQ Band4 Q cc 16 gt Linked or Middle Parametric EQ Band4 Lvl cc 17 Linked or Middle Parametric EQ Band5 Freq cc 18 gt Linked or Middle Parametric EQ Band5 Slope cc 19 gt Linked or Middle Parametric EQ Band5 Lvl cc 20 Linked Stereo Adjust On Off cc 21 Linked Stereo Adjust Bal cc 22 Linked Stereo Adjust Stereo Mono cc 23 Linked De Esser On Off cc 24 Linked De Esser HP Frequency cc 25 Linked De Esser Amount cc 26 Linked De Esser Type cc 27 Linked De Esser Width cc 28 Linked Ambience On Off cc 29 Linked Ambience Amount cc 30 Linked Ambience Width cc 31 Linked Ambience Threshold cc 32 Linked or Middle Gate On Off cc 33 Linked or Middle Gate Threshold cc 34 Linked
57. e are all influenced by the music type For example a Light compression setting with the music type set to Hard Rock will be heavier than Heavy compression with the music type set to Classical If you select Tracking then you will be asked to set up either channel one channel two or stereo If you are tracking two separate instruments in dual mono then you can go through the Wizard twice the first time setting up channel one and the second time setting up channel two Ifatany time you decide you want to quit without the Wizard setting up a program for you you may press the PROGRAM button to exit the Wizard Once all of the questions have been answered the QUANTUM II will display WORKING and then a custom setup will appear tailored to your application If you are working in a stereo setup the QUANTUM II will allow you to optimize your output gain To optimize the output gain push the EDIT ALI BAND button while the loudest part of the program material is pass ing through the quantum ii Press the button again when the peak has passed The Wizard will optimize the output level so that the highest peak is set to 0 dBFS The Wizard will then return you to the Program mode If the PROGRAM button is pressed while gain optimizing the Wizard will exit without changing the output level This setup can be further adapted to your taste and saved for later use 1 4 Signal Path 4 The following illustration shows how audio signals flo
58. e on the compressor the limiter s release time controls how fast the lim iter releases from gain reduction after the signal drops below the threshold Set the release times longer for lower frequency bands and shorter for higher frequency bands 4 6 Broadband Limiting The broadband limiter works very much like the multiband limiter The main difference being that it is a single limiter for the entire frequency range Within the limiter menu on the QUANTUM II when in non multiband stereo mode the fol lowing parameters are user adjustable on all setups Limiter On Off Tums limiter on and off Threshold 60 to 0 dB As in the multiband limiter this is at what level the limiter kicks in and says NO LOUDER It is recommended that the limiter s threshold be set to slightly below the point of no return so that there is a slight margin of safety Of course be careful not to set the threshold too low Finding the right limiter threshold for your equipment will take some experimentation In a recording application most people will set the limiter up to prevent the signal from distorting the tape Analog tape will saturate slowly and a higher threshold will let you take advantage of this if you choose to Digital recording is far less forgiving and a correctly set limiter threshold will prevent any ugly digital overs from ruining a take For sound reinforcement uses the QUANTUM Il s limiter is perfect for keeping your amplifiers from clipping Whe
59. er CHL gt pois gt Pe gt perm gt gt Limiter gt Norm gt Noise gt cua gt gt gt gt gt Shape gt Comp 3 Crossover Limiter Gate gt comp Limiter ChainType Stereo Multi Band with De Esser and Post EQ W hat the QUANTUM Il screen shows for Post TA Gate E E Comp N Stereo Input Limiter Gate gt comp gt Dither CHI Stereo _ ner gt gt Limiter gt Pot gt Norm gt Noise gt Adjust ni PEQ CH2 gt gt I y gt gt gt Shape gt gt gt comp y O gt Limiter gt Yd gt Limiter ChainType Stereo Multi Band with De Esser and MS EQ W hat the QUANTUM Il screen shows for Pre Gate gt Comp gt Limiter Gate gt gt Comp Dither Limiter gt Norm gt gt Noise gt _ gt gt Shape gt gt Comp 3 YY Crossover gt Limiter Gate gt Comp gt Limiter 20 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS 3 1 FX Chains cont ChainType Stereo Multi Band with Ambience and Pre EQ W hat the QUANTUM Il screen shows Gate r Comp Limiter Gate Comp Limiter Stereo Input Dither Norm Noise gt gt Shape gt CH1_y Stereo lo Pre CH2 Adut y EQ Ambience x Gate Comp Limiter Crossover w w ww Gate Comp Limiter Sa xx Py ChainType Stereo Multi Band with Ambience and
60. exploits the wide linear dynamic range of today s A D con verters but also enhances it and extends the useable dynamic range beyond the linear range By providing a logarith mic Type IV Over Region above the linear A D range we benefit from the extended high level headroom that is inherent in analog recording without compromising the noise performance of the A D conversion process Digital conversion and recording processes proliferated in the 1980 s primarily due to the cleaner sound of dig ital versus analog an advantage resulting from the comparatively wider linear dynamic range of digital Anyone who is familiar with the technical specifications of digital equipment knows that the typical maximum signal to noise specifica tions for 16 bit systems is in the neighborhood of 90 something dB Compare this to the typical signal to noise specifi cations for professional analog tape of about 55 dB without the aid of noise reduction and around 75 to 85 dB with noise reduction such as dbx Type I or Type II applied This seemingly tremendous signal to noise advantage of digital over analog would suggest that digital would become the unanimous choice for recording For the most part this has occurred not totally due to its signal to noise advantage but as much due to the benefits of digital storage such as random access and the inherent ability to with stand degradation unlike that of analog tape or LP s In spite of the benefits of digital n
61. g compression By using heavy compression on a signal and then boosting the signal with the output gain we can than create a signal that sounds much louder than it was Attack 0 1 m Sec to 200 m Sec per band or global Attack is how fast the compressor starts to compress the signal after it passes the threshold Fast attack is useful when dealing with lots of fast transients The attack control is not active when in auto mode Hold 0 to 500 m Sec per band or global Hold is the time the QUANTUM II remains in compression after the signal has dropped below the threshold A longer hold time is useful in smoothing out the sound when compressing sev eral fast peaks that are fairly close together in time In general some hold time helps to make the compression sound more natural but too much can over compress your signal making for an unwanted drop in level The hold control is not active while in auto mode Release 360 dB Sec to 5 dB Sec per band or global Release is how fast the QUANTUM II comes out of compression The release is in dB per sec ond For example if release is set to 5 dB sec signal at 10dB of gain reduction release time is 2 seconds Too fast a release time can result in an audible volume jump while too slow a release time can result in the compression of a signal that is not above the threshold This can cause volume drops in your signal that may not be desired The release control is not active while in auto mode d
62. gate with the exception of the fact that it functions on the entire signal band Within the Expander Gate menu on the QUANTUM II when in non multiband chains the fol lowing parameters are user adjustable Gate On Off Local per band control or global on and off Band 1 to 4 On Off Tums on or off each independent band Threshold 75 to 0 dB The threshold is the volume level at which the gate opens Anything above the threshold pass es while signal that is lower than the threshold is attenuated Beware setting the threshold to high can cut off the tail end of signals as they fade out the sustain of a guitar note a held piano chord a reverb tail etc Ratio 1 1 0 to 1 15 This is where you decide how much downward expansion you want This ratio works back wards from that of the compressor or limiter If a ratio of 1 4 is selected a signal that is 1dB below the threshold will be reduced in gain so that it becomes 4dB below the threshold 36 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS Attack 0 1 to 200 m Sec As the signal reaches the threshold area the Attack control sets the speed at which the gate opens Use very fast attack times to catch the fronts of transient signals 4 4 Broadband Gate cont Hold O to 500 m Sec The Hold control sets the amount of time the gate is held open after the signal passes below the threshold point Release 360 to 5 dB Release sets the speed at which the gate closes when the e
63. gnal The auto mode constantly adjusts these parameters in real time for opti mum performance from the unit You will find that for most applications not only is using the auto mode faster and easier but by letting the unit constantly tweak these parameters for you will result in a better end result try and hit a snare exactly the same for three minutes Threshold 60 to 0 dB Threshold is the signal level at which the QUANTUM II starts to compress the signal If the level is set to 10 dBFS than any signal larger than 10 dBFS is compressed while any signal that has a level that is lower than 10dBFS is left at the same signal level Light compression is where only the loudest parts of the signal go over the threshold Very heavy compression can be achieved by setting the threshold low enough that almost the entire signal content is over the threshold For most signals the most natural compression is achieved when most of the sig nal content remains just below the threshold and only the peaks cross the threshold Ratio 0 75 to Inf 1 Ratio is the amount the QUANTUM II reduces the signal level of the sound that is above the threshold A 2 1 ratio means that if the incoming signal is 2dB over the threshold the QUAN TUM II will compress the signal and outputs a signal that only goes 1dB over the threshold For light compression choose a lower ratio while for heavy compression a higher ratio is used By setting the ratio at less than 1 1 the signal
64. gt MS gt ambience pc Esser gt 9 Norm gt Noise gt ate Comp Lim SI cn Adust X EQ gt gt Gate_c Lim gt Shape gt A A A Note W hen MS Compressor is used Gate gt gt EQ and Limiter modules become MS modules as well ChainType Mono with Pre EQ PEQ may be Pre or Post Dynamics W hat the QUANTUM II screen shows for Pre scala Side Chain Mono Input CHlor CH2 PEQ Y Pre Gate Dither gt PEQ gt gt Ambience gt De Esser Comp gt Nose gt Limiter Shape Chain Type Mono with Post EQ ad W hat the QUANTUM II screen shows for Post Mono Input Side Chain CHlor CH2 PEQ Y Gate Dither gt Ambiente gt De Esser Comp Pot Noise Lim PEQ Shape QUANTUM II User Manual 23 d b X PROFESSIONAL PRODUCTS 3 2 Programs Setups The QUANTUM II has a unique method of storing your settings It stores your changes to para meters as setups These setups are an immediately accessible library of your changes No mat ter what program you are currently working with you can call up any setup that uses that same configuration stereo linked or dual mono See Appendix F Each configuration has its own separate library of user factory setups available This allows you to stay in a program but still change the setups within that program The easiest way to demonstrate this is by using a dual mono program Imagine that you have the perfect settings for a kick drum d
65. gth 2048 Sample Rate 48 Khz Averages 32 Graph Steps 1024 90 QUANTUM II User Manual d b X PROFESSIONAL PRODUCTS Truncation Audio Precision FFT SPECTRUM ANALYSIS DIGITAL Th t mca Er 140 A pra Or pus vM need RAT ve lazy a Lanka lar ak dk Bk Bk 10k 12k Tdk Fig H 1 Hz 18k 05 05 89 23 35 36 18k a 24 Bit word b 16 Bit truncated output no dither Parameters Input 60dBFS 1 kHz FFT Length 2048 Sample Rate 48 Khz Averages 32 Graph Steps 1024 d b X PROFESSIONAL PRODUCTS QUANTUM II User Manual 91 dbx PROFESSIONAL PRODUCTS H A Harman International Company 8760 South Sandy Parkway Sandy Utah 84070 Phone 801 568 7660 Fax 801 568 7662 Intl Fax 801 568 7583 Questions or comments E mail us at customer dbxpro com or visit our World Wide Web home page at www dbxpro com 18 6380 A
66. h a fast release on the compressor or limiter can cause them to release before the peak even hits 4 14 De Esser The De Esser is only available in non multiband chains e g Stereo Broadband or Dual Mono A De Esser is primarily used to remove the S or sibilant sounds in a vocal track Within the De Esser menu the following parameters are user adjustable De Esser On Off You guessed it Tums the De Esser on or off Freq 800 Hz to 8 00 kHz This is the center frequency the De Esser uses when in Band Pass mode or the comer frequency used when in High Pass mode 4 14 De Esser cont Amount 0 to 100 This controls the amount of De Essing The amount control is very much like a combination threshold ratio control A higher amount applies more De Essing to the signal Type HP or BP Selects the type of filter used by the De Esser W idth Sets the Q of the Band Pass Filter 4 15 Normalization The Normalizer in the QUANTUM II adds gain to the signal right before the output By adding gain to the signal right at the end of the chain we can then make sure that it goes to tape disk etc as hot as possible The gain optimize function automatically adjusts the QUANTUM II s gain to maximize output without going over OdBFS The gain optimize function sets the output gain of the QUANTUM II by looking at a sample of music and keeping track of the highest level of that audio signal The output gain is then set so that the highe
67. he NEXT PAGE and PREV PAGE but tons to move between different crossover points The slope can be changed by pushing the DATA WHEEL to move to the slope parameter line Turning the DATA WHEEL changes the slope of the crossover Changing the crossover slope changes the way the frequency bands interact For example a broader slope e g 6 dB Octave allows the adjacent bands to have much more interaction than a slope of 18 dB Octave Broader slopes provide a more seam less transition between bands while steeper slopes allow tighter control over a particular band 1 5 Mastering and the Quantum Il cont Now that your bands are set up for your application you monitor them and you hear how the sub band band one is the ultra low frequencies of the kick and bass as well as some of the guitar The low band band two includes the electric and acoustic guitars the bass and some of the low vocal frequencies The Mid band band three contains the majority of the vocals as well as the mid range frequencies of the Mid band guitar The high band band four con tains the cymbals the click of the guitar pick on the acoustic guitar and the higher vocal fre quencies You are now ready to go to the compressor and start compressing your mix Setting up your compressor is similar to setting up your crossover in that you can go and lis ten to how the compression is affecting the individual bands by monitoring them both pre and post processing The
68. he gain set to 1 0 dB As you listen to your mix you realize that the vocals could use a little more compression so you change the ratio of band three to 1 8 1 Tt is impor tant to listen to both the individual bands and the mix as a whole to hear how the compres sion is affecting the entire mix This type of procedure should be duplicated on the multiband gate and the multiband limiter to achieve the best results As you have seen setting up the multi band compressor is an iterative process that takes time to perfect By using the multiband com pressor along with the other tools available in QUANTUM II you will be able to create much larger sounding mixes and masters 6 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS NAVIGATION dbx PROFESSIONAL PRODUCTS Control of each of the bands within the QUANTUM II s multiband dynamic modules is made possible in two different ways You may either use the All page or individual band adjust ments The All page is signified by a large All seen where the program number would nor mally be Adjusting settings in this page will adjust the settings in all four bands as a group To control individual bands within the All page press the EDIT ALI BAND button to cycle through each band Pressing the dynamic module s button again will cycle you through the separate bands and the dynamic controls of those bands e g compressor or limiter Refer to the Navigation illustrations for a comple
69. hly subjective d b X ProressionaL PRODUCTS QUANTUM II User Manual 27 3 6 Meters cont Digital Meters The middle portion of the meter represents the peak level of the signal The sides of the meter represent the average peak level Since the digital output meter is located after dither changes made to dither will be seen at this meter Digital clipping is represented by a large C at the top of the meter Shoulder The Gain Reduction meters are a measurement of the sum of all active dynamic modules In multiband mode the meters function a little differently Each LCD segment represents a sepa rate band This allows an accurate meter representation of the signal at a glance Gain Reduction Meter Input Output urve Meter O ptions Two different meter options are available By pushing the METER MONITOR button your choice of a High Resolution dBFS Output meter w clip counter or a Gate Compressor and Limiter threshold meter are available The Gate Compressor and limiter threshold meters shows if your signal has reached the threshold set in each dynamic processor This is indicated by symbols On every program you will find threshold metering for each processing element Compressor Ciatti For the compressor the threshold meter has three segments The first is the minus sign It indicates that the threshold set in the compressor section is not being exceeded by the program material There is no processing
70. ialed in on channel one but you need to find a better setup for the snare The CHANNEL button will toggle you between chan nels 1 amp 2 You are now able to browse the setup library by using the DATA WHEEL When you have found a setup that is closest to what you need press PROGRAM The changes that have been made are now waiting to be saved as a program and the STORE light will be lit Another helpful feature of this library system is that you may place your stored setups anywhere you like within your library If you choose Store New from the Store menu you may then choose the position of your setup within your library To do this simply spin the DATA WHEEL to re order your setup library This allows you to keep your setups organized how you want them For example you can keep all of your Hard Rock or Jazz setups together for quick recall and editing See the Setup Selection illustrations 3 4 and 3 5 Stereo Setup Library Program 1 Pop Master 1 L Pop Master1 24 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS 3 2 Programs Setups cont Mono Setup Library Program 3 Mono Def Pop Master 1 Studio Voc Studio Voc Acoustic Gt Acoustic Gt 3 3 Saving a Setup Saving a setup can be done by following these steps 1 After you have edited your setups to your liking press the STORE button The screen will look like the figure below Pressing the DATA WHEEL move the cursor down to either
71. ic Side Chain EQ Band1 Slope cc 67 Linked or Middle Parametric Side Chain EQ Band1 Level cc 68 gt Linked or Middle Parametric Side Chain EQ Band2 Fc cc 69 gt Linked or Middle Parametric Side Chain EQ Band2 Q cc 70 Linked or Middle Parametric Side Chain EQ Band2 Level cc 71 gt Linked or Middle Parametric Side Chain EQ Band3 Fc cc 72 Linked or Middle Parametric Side Chain EQ Band3 Q cc 73 gt Linked or Middle Parametric Side Chain EQ Band3 Level cc 74 gt Linked or Middle Parametric Side Chain EQ Band4 Fc cc 75 Linked or Middle Parametric Side Chain EQ Band4 Q cc 76 Linked or Middle Parametric Side Chain EQ Band4 Level cc 77 Linked or Middle Parametric Side Chain EQ Band5 Fc cc 78 Linked or Middle Parametric Side Chain EQ Band5 Slope cc 79 gt Linked or Middle Parametric Side Chain EQ Band5 Level cc 80 gt Linked Normalize Effect ON OFF cc 81 gt Linked Normalize Effect Level cc 82 gt Linked Normalize Effect Ceiling cc 83 Linked Normalize Effect Type cc 84 Side Parametric EQ On Off cc 85 Side Parametric EQ Type cc 86 gt Side Parametric EQ Band1 Fc cc 87 Side Parametric EQ Band1 Slope cc 88 gt Side Parametric EQ Band1 Level cc 89 Side Parametric EQ Band2 Fc cc 90 gt Side Parametric EQ Band2 Q 82 QUANTUM II User Manual d b X PROFESSIONAL PRODUCTS cc 91 gt Side Parametric EQ Band2 Level cc 92 gt Side Parametric EQ Band3 Fc cc 93 gt Side Parametric EQ B
72. ich will bypass the signal if power is cut You may wish to change this this setup so in the unfortunate event that power is cut the signal will be bypassed The procedure for changing these jumpers is as follows 1 First shut the off off and disconnect the power cable 2 Ground yourself prior to opening the unit chassis to prevent ESD damage 3 Open the chassis by removing two screws on each side of the chassis and the top two center Allen head screws as shown leni J per mien in pase say pp I ad iva ed Dub pul Jupi fin i piace relay prosa i adi nitas Fig C 1 5 Remove or replace the jumper from the terminated position and place it in the unterminated position depending on the desired option 6 Close the chassis and replace the screws in the reverse order d b X PROFESSIONAL PRODUCTS QUANTUM Il User Manua 71 Hex Value Definition FO h System Exclusive Begin Message byte Manufacturer s ID Number dbx n units Device or SYSEX Channel number minus one e g 01 h is device or SY SEX Ch 1 01 h is device or SY SEX Ch 2 etc OF h is device or SYSEX Ch 16 dd dd device ID number 01 h identifies the QUANTUM II pp pp Procedure number The different procedure s names and general formats are described in the Procedures Section dd 1 1 dd 1 2 dd n 1 dd n 2 dd Data as needed by procedures Since the standard MMA MIDI Specification reserves 80 h through FF h decimal numbers 128 through 255 for
73. iddle line of text the Parameter 2 line 2 Use the DATA WHEEL to scroll to the place where you want to add the new setup The QUANTUM II makes room for your setup no matter where you want to place it 3 4 Saving a Program Saving a program Saving a program is done by following these steps 1 Press the STORE button The screen looks like this Par ter 1 Store k Pros Parime ter 2 D Getur 2 You have the choice of saving the Program or saving the setup Choose the first option by simply pressing the STORE button 3 As you do this the screen goes to the next Store Page asking you to name the new pro gram The curve window shows instructions Using the DATA WHEEL as a selector and the Page Up Page Down buttons as the cursor create the name you want to use then press the store button to save the name When you have named the new program press STORE again then select a new location 1 50 the screen bumps to the next save screen asking you to select a program for the QUAN TUM II to erase and write the new program over Note that you can only access programs 1 50 e 26 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS 3 5T he Bypass Function BYPASS To bypass the QUANTUM II press the BYPASS button once All digital dynamic modules are rendered inactive The QUANTUM II also has a CLONE BYPASS mode passes the digital audio through the QUANTUM II to the digital output directl
74. igh level peaks captured in the Type IV Over Region You will notice an obvious audible dif ference With Type IV bypassed you can t help notice the harsh edgy sound of the A D converter clipping With Type IV enabled those nasty artifacts disappear revealing a more open and natural sound With Type IV enabled you will get a more accurate and pure representation of the original wide dynamic range signal You will absolutely agree that we really do give you something for nothing We give you peace of mind knowing that you never have to worry about clipping your A D again And when you listen to the noise floor of your A D you ll realize that we never compromise your noise performance with Type IV The dbx Type IV Conversion System succeeds in combining the best of the analog and digital worlds to cap ture the truest essence and fullest dynamic range of audio signals Who else but dbx would bring you this technology d b X ProressionaL PRODUCTS QUANTUM II User Manual 73 C 1 Clock Modes With digital inputs clocks are recovered from the incoming sample stream In the process of clock recovery jitter is introduced into the audio signal For example if you have a few different units digitally connected by S PDIF the jitter introduced is cumulative each time the clock is recovered Syncing multiple pieces of digital equipment to a master clock reduces the jitter between them Keeping jitter to a minimum allows for maximum fidelity
75. ils and acoustic guitar finger picking are examples of sounds that can be enhanced by using the Ambience effect Ambience On Off Sort of self explanatory by now Amount 1 0 1 to 5 1 This sets the amount of ambience Width 10 to 30 dB This controls the portion of the signal that the ambience is applied to Thresh 60 to 0 dB Sets the threshold of the ambience processor 4 13TCM Transient Capture Mode or TCM was first seen in the dbx 172 Super Gate Basically what it does is delay the input of the VCA enough that the detector is able to read ahead in the signal With a long enough TCM time it is possible to have a gate start to open or compressor start to compress before the signal hits the VCA This can be used to achieve very intelligent limit ing and gating along with very smooth and transparent compression Once the TCM is tumed on it works on the compressor gate and limiter while in both multiband and broadband modes To keep the multiband dynamic elements phase coherent there is only one TCM time for all bands of the gate compressor and limiter TCM On Off This is a global control and turns the TCM on or off for all compressors limiters and gates Time O to 85 m Sec d b X ProressionaL PRODUCTS QUANTUM II User Manual 43 This sets the amount of the TCM delay The longer the time the more time the unit has to react to fast transient peaks Care must be used however as a long TCM time coupled wit
76. im Shot Tight Toms Ringing Tom Rumble Bass Slap Bass Big Piano Brite Horns Acoustic Gt Folk Gtr Twang E Gtr Monster Gtr FunkstompGt Specifications Inputs Connectors Type Impedance Max Input Level CMRR Input Gain Range MIDI Outputs Connectors Type Impedance Max Output Level Output Gain Range MIDI A D System Performance A D Conversion Convertor Dynamic Range Type IV Dynamic Range THD Noise Frequency Response Interchannel Crosstalk D A System Performance D A Conversion Dynamic Range THD Noise Frequency Response Interchannel Crosstalk Female XLR and 1 4 TRS Pin 2 and tip hot Electronically balanced unbalanced RF filtered Balanced gt 18 kQ unbalanced gt 9 kQ 24 dBu balanced or unbalanced gt 40 dB typically gt 55 dB at 1 kHz o to 16 dB 5 Pin DIN MIDI Input Jack Male XLR and 1 4 TRS Pin 2 and tip hot Servo balanced unbalanced RF filtered Balanced 120 Q unbalanced 60 Q gt 21dBu balanced unbalanced into 2k9 or greater gt 20dBm balanced unbalanced into 6002 o to 16 dB 5 Pin DIN MIDI Out Thru Jack 24 bit dbx Type IV Conversion System 114 dB typical A weighted 22 kHz bandwidth 112 dB typical unweighted 22 kHz bandwidth Up to 127 dB with transient material A weighted 22 kHz bandwidth Up to 125 dB with transient material unweighted 22 kHz bandwidth Typically 119 dB with program material A weighted 22 kHz bandwidth T
77. inated equipment in a tapped configuration you should unterminate QUANTUM Il s sync input The same is true if you wish to use several QUANTUM Ils in a tapped config uration QUANTUM II can also be used in a daisy chain fashion In a daisy chain configuration each piece of equipment can remain terminated and should if you are using a SuperClock and so the termination can remain in the default position Whatever configuration you choose always use high quality 75 ohm coaxial cable for your sync connections In addi tion keep the cable runs as short as possible The preceding is especially true when using SuperClock because the fre quencies are much higher Failure to follow these guidelines could cause decreased audio performance and or syn i chronization prob Daisy Chain Configuration lems Lol o Tapped Configuration Fig C 2 76 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS C 3 Relay Mute Bypass Jumpers CAUTION These servicing instructions are for use by qualified service personnel only To reduce the risk of electric shock do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so Refer all servicing to qualified service personnel Disconnect mains power before servicing The Quantum II offers relay bypass mute jumpers options This feature is ideal for situations where power to unit is suddenly removed The unit ships with the replay jumpers on wh
78. is invalid The Receive Key Accepted procedure is sent from the QUANTUM II in response and acceptance of a Receive Scan Code Key or Receive Hold Scan Code Key procedure but is ignored if received by the QUANTUM II Reset Program 20h SYS HEAD 20 h F7 h d b X PROFESSIONAL PRODUCTS QUANTUM II User Manual 79 The Reset Program procedure causes the QUANTUM II to reload the current saved program Reset Device 21h SYS HEAD 21 h F7 h The Reset Device procedure causes the QUANTUM II to reboot the software as if the power had been turned off and then back on If edits have been made to the current program without saving they will be lost SYSEX Setup Dump Sample Following is a simple example of a SYSEX Setup dump It takes you set by step through all of the operation com mands of a typical SY SEX procedure SYSEX Header gt gt F0 00 01 1E 00 01 lt lt Procedure gt gt 43 lt lt Setup Dump Version gt gt 00 01 00 01 lt lt Setup Type and Setup Number gt gt 00 00 00 00 lt lt SetupTransmit Count Lo Bytes Hi Bytes gt gt 00 0A 00 06 lt lt 12 Character Setup Name dynamic gt gt 00 31 00 3A 00 52 00 76 00 62 00 20 00 32 00 3A 00 47 00 74 00 52 00 76 Null to indicate end of Character String gt gt 00 00 lt lt Misc Setup Data too dynamic to document gt gt 00 07 00 00 00 06 00 00 00 03 00 06 00 03 00 32 00 08 00 03 00 00 00 00 00 02 00 04 00 00 00 00 00 02 00 08 00 00 00 00 01 7E 00 00 00
79. iter Release cc 118 gt Linked TCM On Off cc 119 gt Linked TCM Time cc 120 gt Linked Output Effect Bits cc 121 gt Linked Output Effect Dither cc 122 gt Linked Output Effect Shape cc 123 gt Linked Output Effect Dither Out cc 124 gt Linked Normalize Effect ON OFF cc 125 gt Linked Normalize Effect Level cc 126 gt Linked Normalize Effect Ceiling cc 127 gt Linked Normalize Effect Type F 1 Program menu Pop Masterl 51 Pop Masterl Piano Track 52 Piano Track Studio Voc Acoustic Gt 53 Studio Voc Acoustic Gt Country Mix 54 Country Mix Classical CD 55 Classical CD Squash It 56 Squash It Expand It 57 Expand It Funkngroove 58 Funkngroove 9 Jazz Master 59 Jazz Master 10 Smooth Voc 60 Smooth Voc 11 Rockin CD 61 Rockin CD 12 Mix Maximum 62 Mix Maximum 13 RAP It Up 63 RAP It Up 14 Ballad CD 2 64 Ballad CD 2 15 DanceMaster 65 DanceMaster 16 Demo CD 1 66 Demo CD 1 17 Kick Track 67 Kick Track 18 Ambient CD 68 Ambient CD 19 Telephone 69 Telephone 20 Rock Master 70 Rock Master 21 Hip Hop CD 71 Hip Hop CD 22 Techno Mix 72 Techno Master 23 Ballad CD 1 73 Ballad CD 1 24 World Mix 74 World Mix 25 Folk Master 75 Folk Master 26 Subtle Mix 76 Subtle Mix 27 Live CD 77 Live CD 28 Country CD 78 Country CD 29 Cass To CD 79 Cass To CD 30 Default MB 80 Default MB 31 Drum Room 81 Drum Room 32 ST E Gtr 82 ST E Gtr 33 ST Vocal 83 ST Vocal 34 Horn Sec 84 Hom Sec 35 Piano Roo
80. l appear as follows At this point simply click on either the right or left amows to scroll through the menu of available effect chain setups Once the desired setup has been selected click the SETUPS icon and the setup will be loaded into the currently selected pro gram Abi le gt mMmmmm_m_m_ 6 7 M AUbLLn i Eenx aJ To edit any one of the effect modules in the currently selected program s signal path sim ply double click on the desired effect module block icon and the monitor display will appear as follows At this point simply click and drag on any effect parameter to increase or decrease para meter values Always make sure to click OK use the module has been edited Note that multiple modules can be opened and on the desktop screen at the same time This feature makes quick and easy Quantum II edits 66 III gt n Abr dbx PROFESSIONAL PRODUCTS A 1 Hard amp Soft Resets Occasionally it may be necessary to perform a Soft or Hard reset The Soft Reset resets everything except user programs The Hard Reset Procedure will reset all programable information back to the factory defaults To do a Hard Reset Hard Reset Factory Reset 1 Tum on power with STORE button held until appears on LCD 2 Press lt PREV PAGE to activate the reset sequence Any other button will abort the reset To do a Soft Reset Soft Reset System Reset 1 Tum on power with
81. l drops below the threshold Set the release times longer for lower frequency bands and shorter for higher frequency bands There are 5 bands of EQ on the QUANTUM II that can be used for something as subtle as sweet ening a mix to drastic changes Bands 1 and 5 are shelves while 2 through 4 are fully para metric Within the EQ menu the following parameters are user adjustable EQ On Off This control turns all 5 bands on and off POS Pre Post MS This sets the position of the EQs in the chain The EQ can be Pre Post or MS Middle Side dynamic processors This is a global control as all bands must be either pre or post as a group Note MS EQ is only available in Stereo Linked and Stereo Linked Multi Band chains Type Const Q Adapt Q This controls effects all 5 bands Const Q operates similar to an analog graphic EQ where the Q is constant regardless of cut or boost Whereas Adaptive Q operates similar to the EQ that is found on a mixing console where the width of the band is constant regardless of the cut or boost The following figure shows the difference between constant and adaptive Q parametric filters d b X PROFESSIONAL PRODUCTS QUANTUM II User Manual 39 ini i A ARA f Fig 4 2 4 7 EQ cont Band 1 FC 20 0 Hz to 20 0 kHz This controls the comer frequency for the low frequency shelving EQ band Slope 3 to 12 dB Octave Sets the slope of the shelf Level 12 to 12 dB Amount of boost or cut Adjustable in
82. l want to assign them to everything As you scroll through assignable parameters the available dynamic module that each parameteris a part of is listed under the graphic representation of the chain on the lower right hand quadrant Refer to Appendix E for assignable parameters d b X ProressionaL PRODUCTS QUANTUM II User Manual 49 5 5 MIDI Channels MIDI CH Selects which MIDI channel the QUANTUM II will receive program changes and CC s on Selections are OFF 1 16 OMNI SYSEX CH Selects which MIDI channel the QUANTUM II will receive SYSEX information on Selections are OFE 1 16 OMNI MERGE MIDI merging allows any incoming MIDI data to be merged with MIDI data generated by the QUANTUM II This merged data will then be transmitted to the MIDI out port Selections are ON OFE 5 6 MIDI Program Changes Program Changes When the QUANTUM II is set to receive on one or all of the MIDI channels it will recognize a Program Change command If the number is legal i e within the device s range of selectable programs the QUANTUM II will respond by changing to the new program MIDI sends Program Changes 0 through 127 The QUANTUM II begins its program numbering with 1 thus Program Change 0 will select program 1 The QUANTUM II also allows the user to re map the Program Change commands so that Program Change 0 could call program 60 if so desired 5 7 SYSEX Dump ABOUT SYSEX DUMPS The QUANTUM II allows you to use MIDI to archive the setti
83. m 85 Piano Room 36 String Sec 86 String Sec 37 ST Ac Gtr 87 ST Ac Gtr 38 Orchestral 88 Orchestral 39 Synth Track 89 Synth Track 40 Default ST 90 Default ST 41 Fat Kick Slam Snare 91 Fat Kick Slam Snare 42 Brite Snare Brite Horns 92 Brite Snare Brite Horns 43 Small Voc Big Piano 93 Small Voc Big Piano 44 Thick Kick Tight Toms 94 Thick Kick Tight Toms 45 Rim Shot Ringing Tom 95 Rim Shot Ringing Tom 46 R amp B Vocal Slap Bass 96 R amp B Vocal Slap Bass 47 De ess Voc Monster Gtr 97 De ess Voc Monster Gtr 48 Country Voc Twang E Gtr 98 Country Voc Twang E Gtr 49 Rumble Bass FunkstompGt 99 Rumble Bass FunkstompGt 50 Mono Def Mono Def 100 Mono Def Mono Def 86 QUANTUM II User Manual d b X PROFESSIONAL PRODUCTS F 2 Factory Setups Stereo Default MB Default ST Mix Maximum Country Mix Folk Master Subtle Mix Pop Masterl Pop Master2 Classical CD Funkngroove Rock Master Country CD Jazz Master Cass To CD Ambient CD Smooth Voc Rockin CD World Mix Squash It Expand It Metal CD Telephone Hip Hop CD RAP It Up Ballad CD 1 Ballad CD 2 DanceMaster Techno Mix Demo CD 1 Demo CD 2 Kick Track Live CD Choral Ens Piano Track ST E Gtr Drum Room ST Vocal Piano Room ST Ac Gtr String Sec Synth Track Hom Sec Orchestral dbz ne A 7 Mono Mono Def R amp B Vocal Studio Voc Small Voc Country Voc De ess Voc Fat Kick Thick Kick Brite Snare Slam Snare R
84. meters on each Page by depressing the data wheel Rotating the data wheel changes the value of the Parameter 16 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS Navigating Other OTHER Type IV On Off Navigate through ci the bands by depressing the Other button Stereo Adj On Off successively until Balance M S De Esser On Off Type Freq Width Amount TCM On Off TCM Time arriving at the desired band Ambience On Off Amount Width Thresh1 Navigate through the Parameters on each Page by depressing the data wheel Rotating the data wheel changes the value of the Parameter d b X ProressionaL PRODUCTS QUANTUM II User Manual 17 2 11 Utility Navigating Utility Navigate through the Pages by depressing Next Page or Prev Page successively until arriving at the desired Page PREV PAGE NEXT PAGE gt UTILITY Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Output Digln Ch 1 Chain Type MIDI CH Receive Dump Setup Bulk Dump A D Cal Contrast BNC Freq Digln Ch 2 MIDI CC Sysex Ch MIDI Prg Type AutoLoad HighPass on off Mibi CC Effect Bf Merge On Off las Prg MtrSpeed Navigate through the Parameters on each Page by depressing the data wheel Rotating the data wheel changes the value of the Parameter 18 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS SOFTWARE dbx PROFESSIONAL PRODUCTS This section explains how signals are routed monitored an
85. n Off cc 63 gt Linked Band1 Compressor OverEasy cc 64 gt Linked Band1 Compressor Auto On Off cc 65 gt Linked Band1 Compressor Threshold cc 66 Linked Band1 Compressor Gate Ratio cc 67 Linked Band1 Compressor Gain cc 68 gt Linked Bandi Compressor Attack cc 69 gt Linked Bandi Compressor Hold time cc 70 Linked Band1 Compressor Release cc 71 Linked Band2 Compressor On Off cc 72 Linked Band2 Compressor OverEasy cc 73 Linked Band2 Compressor Auto On Off cc 74 Linked Band2 Compressor Threshold cc 75 Linked Band2 Compressor Gate Ratio cc 76 Linked Band2 Compressor Gain cc 77 Linked Band2 Compressor Attack cc 78 gt Linked Band2 Compressor Hold time cc 79 Linked Band2 Compressor Release cc 80 gt Linked Band3 Compressor On Off cc 81 gt Linked Band3 Compressor OverEasy cc 82 Linked Band3 Compressor Auto On Off cc 83 gt Linked Band3 Compressor Threshold cc 84 Linked Band3 Compressor Gate Ratio cc 85 gt Linked Band3 Compressor Gain cc 86 Linked Band3 Compressor Attack cc 87 Linked Band3 Compressor Hold time cc 88 Linked Band3 Compressor Release cc 89 gt Linked Band4 Compressor On Off cc 90 gt Linked Band4 Compressor OverEasy cc 91 Linked Band4 Compressor Auto On Off cc 92 Linked Band4 Compressor Threshold cc 93 Linked Band4 Compressor Gate Ratio cc 94 Linked Band4 Compressor Gain cc 95 gt Linked Band4 Compressor Attack cc 96
86. n an amplifier clips it sends square waves through to the speakers and this can damage a speaker very quick ly The limiter can also sometimes be used as an effect Setting the threshold low will effectively take all the dynamics out of a signal and is used as a form of extra heavy compression Type PkStop RMS This lets you select the type of limiter used An RMS limiter limits the signal based on the aver age signal level While this is a much more musical sounding limiter some fast transients may go beyond the limiter threshold The PeakStop 8 will keep all peaks below the set threshold Attack 01 to 200 m Sec per band or global 38 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS This is the speed at which the QUANTUM II limiter starts to compress the signal once it has crossed the threshold Set the attack time longer for lower frequency bands and shorter for higher frequency bands 4 6 Broadband Limiting cont Hold 0 to 500 m Sec per band or global Hold is the time the limiter stays in gain reduction after the signal level has dropped below threshold Hold is useful when you want the limiter to function for a period of time after it has been triggered Be careful not to set the hold time too long as it will not release in time Release 360 to 5 dB Sec per band or global just like the release time on the compressor the limiter s release time controls how fast the lim iter releases from gain reduction after the signa
87. nastiness INPUT Set this to match the input you are connecting CLOCK Set this to match the frequency that you would like the QUANTUM II to operate it s internal clock at If the QUANTUM II is slaved to a jittery master clock the QUANTUM II will clean up the jitter and output only clean and steady clock frequencies If you are unsure of your mas ter clock device we recommend you use the QUANTUM II as the master The choices are internal INT96 INT88 2 INT48 INT44 1 SuperClock SC48 SC44 1 Word AES EBU and S PDIF The SuperClock frequencies are 256 times the sample frequency SRC This changes the sample rate that the QUANTUM II will convert to The choices are INT44 1 and INT48 Word SC48 SC44 1 OUTPUT This changes the digital output format between AES EBU and S PDIF BNC FREQ This changes the MASTER CLOCK output between Word Clock and 256 SuperClock All crystals have slight amounts of variance By slaving all digital units to a master BNC clock 48 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS this variance is reduced The QUANTUM II clock output is accurate and clean whether it is master or slave See Appendix C for possible clock modes SCMS This tums on off SCMS copy protection If you are mastering a mix on which you wish to have copy protection written tum SCMS ON This copy protection is only available with S PDIF output There are three possible settings no copy one copy infinite copies
88. nd of the Hold time is reached Max ATT Oto Inf dB This sets the maximum amount of attenuation for the gate 4 5 Multiband Limiting A Limiter works very much like a compressor The only difference is that on a limiter the ratio is set at infinity to one Whenever a signal crosses the threshold the limiter compresses it back down By using the multiband Limiter you can set each limiter differently for different frequency ranges The multi band limiter is an RMS limiter short transients may exceed the threshold With in the limiter menu on the QUANTUM II the following parameters are user adjustable on all setups Changes made to factory setups can be saved as user setups Limiter LOC O n Off Local per band control or global on or off Bands 1 to 4 On Off Lets you turn each band on or off independently Threshold 60 to 0 dB per band or global This is at what level the limiter kicks in and says NO LOUDER It is recommended that the limiter s threshold be set to slightly below the point of no return so that there is a slight mar gin of safety You of course want to be careful not to set the threshold to low as this would prevent you from getting the full dynamic range possible out of your gear Finding the right lim iter threshold for your equipment will take some experimentation In a recording application most people will set the limiter up to prevent the signal from distorting the tape Analog tape will saturate slowly and
89. nds contain different amounts of energy they can be compressed using widely varying settings The end result is that parts of the mix the low frequency bands for example can be compressed more heavily than if a single compressor was used on the entire mix thereby allowing a greater overall level and a hotter mix The easiest way of setting up the multiband compressor in QUANTUM II is to use the moni tor in conjunction with the crossover and the compressor For example assume that you had a rock mix that you wanted to master Specifically you want to compress the kick and bass parts to create a more punchy mix You also want to control the vocals to keep them from being too prominent in the mix The first thing you would do is to set up the crossover so that most of the low frequency energy of the kick and bass is in the sub and low bands The vocal band should also be separated from the other bands The Monitor page allows the engineer to toggle the monitor position between the main L R and individual bands both pre and post processing By rotating the DATA WHEEL the monitor position is changed As you listen to the bands you realize that Band two has too much of the vocal in it so crossover band two should be adjusted to a lower frequency d b x PROFESSIONAL PRODUCTS QUANTUM II User Manual 5 The crossover page shows the crossover points as well as their slopes The crossover points can be adjusted by rotating the DATA WHEEL and using t
90. ng low end in the sidechain will mean the detection circuit will see less low end thus the signal will be compressed based on it s high frequency content Sidechain Detection EQ Circuit Fig 4 3 Within the SEQ menu on the QUANTUM II the following parameters are user adjustable Press the EQ XOVER button twice when in non multiband mode to access the SEQ Schain EQ On Off This control turns all 5 bands on off Type Const Q Adapt Q This controls all 5 bands All bands must use the same Q type SEQ 1 FC 20 0 Hz to 20 0 kHz This controls the comer frequency for the low frequency shelving EQ band d b X ProFessioNAL PRODUCTS QUANTUM II User Manual 41 Slope 3 to 12 dB Octave Sets the slope of the shelf Level 12 to 12 dB Amount of boost or cut Adjustable in 1 2 dB steps SEQ2 3 4 FC 20 0 Hz to 20 0 kHz This controls the center point for the parametric EQ Q 0 25 to 16 0 Sets the width of the boost cut Level 12 to 12 dB Amount of boost or cut Adjustable in 1 2 dB steps SEQ5 FC 20 0 Hz to 20 0 kHz This controls the corner frequency for the high frequency shelving EQ band Slope 3 to 12 dB Octave Sets the slope of the shelf Level 12 to 12 dB Amount of boost or cut Adjustable in 1 2 dB steps 4 10Type IV The QUANTUM II uses dbx Type IV 96 kHz converters Type IV gives you more A to D headroom and the ability to add Tape Saturation Emulation For more information on Type IV and TSE
91. ng of the output module 5 Choose which type of dither you would like to use refer to Section 4 16 6 Choose which type of noise shaping you would like to use refer to Section 4 16 7 Setthe Dither Out to All if monitoring dither 8 Press STORE if you wish to save non utility changes refer to Section 3 4 62 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS GUI dbx PROFESSIONAL PRODUCTS 7 1 PC GUI Installation To make operation of the Quantum II even more convenient dbx professional products includes the PC GUI software with every unit shipped The GUI interface will allow you to control all aspects of the Quantum II The following section contains some basic information regarding the utilization of the GUI software including install system requirements cable specifications and basic operation SYSTEM REQUIREMENTS Min system 166mhz PC processor 16 bit color monitor 32 meg RAM Windows 95 OS R2 or newer Windows NT 4 0 or newer Baud rate fixed 38 4 kbaud Note COMM port setting must be consistent This means that when the GUI is in use any other device that uses the RS232 CO MM port must be tumed off INSTALL Install the GUI interface from either the dbx Professional Products website at www dbx pro com or from the CD ROM onto your your PC or laptop Once the software is downloaded or CD is loaded simply double click on the file named GUI setup The application will proceed to
92. ngs in your unit or even settings of each individual setup This is done through MIDI System Exclusive data protocols System Exclusive data or SYSEX as it is often called can be shared between two QUANTUM II s by simply connecting the MIDI Out of one QUANTUM II to the MIDI In of the other To ensure data integrity the two QUANTUM Il s should be using the same software version the version is displayed when the unit powers up Data can also be sent to an external MIDI recording device such as a MIDI sequencer or a computer outfitted with a proper MIDI interface Once the data is there it can be sent back to the QUANTUM II to restore settings to their archived values System SYSEX Data The BULK DUMP option allows a complete system exclusive dump of the entire contents of the QUANTUM II s memory This includes all user Programs Setups Utility and MIDI configurations To perform a system exclusive dump of the entire contents of the memory do the following 1 Enter the Utility menu by pressing the UTILITY button once 2 Press NEXT PAGE button until page 7 is reached 3 Press UTILITY button to dump the entire contents of the QUANTUM II s memory 5 8 Setup SYSEX Data 50 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS The QUANTUM II has the ability to dump an individual Setup as a MIDI number other than its own This is particularly useful in cases where you need to perform Setup dumps from one QUANTUM II to another and you don t
93. o one in the audio world can refute the rediscovery of analog recording and tube gear that has occurred in the 90 s attributable to the quest for that analog character that is missing from digital recordings This continued use of analog gear with modern digital systems brings to light a favorable characteristic of analog recording which those who abandoned analog and jumped on the dig ital bandwagon were either never aware of or simply took for granted Anyone who has ever used analog tape knows that you can hit it hard without destroying the recording The printed specifications of analog tape don t take into account the practical headroom available The max signal to noise specification of analog tape is measured by defining the max signal as the point where a given signal level and fre quency produces a given percent Total Harmonic Distortion THD typically the level at which a 1 kHz signal produces 3 THD In actual use the signal can easily exceed this max signal level by 5 10 or even 15 dB on peaks depend ing on the type of signal being recorded without unacceptable artifacts High signal levels can be tolerated i e more headroom at the expense of increased THD which incidentally is often desirable as an effect evidenced by the renewed popularity of tube equipment The obvious conclusion is that analog recording actually has more useable dynamic range than the specifica tions seem to indicate For example let s say we re rec
94. or Middle Gate Gate Ratio cc 35 gt Linked or Middle Gate Attack cc 36 Linked or Middle Gate Hold time cc 37 Linked or Middle Gate Release cc 38 Linked or Middle Max Attenuation cc 39 Linked or Middle Compressor On Off cc 40 Linked or Middle Compressor OverEasy cc 41 gt Linked or Middle Compressor Auto On Off cc 42 Linked or Middle Compressor Threshold cc 43 Linked or Middle Compressor Gate Ratio cc 44 Linked or Middle Compressor Gain cc 45 gt Linked or Middle Compressor Attack cc 46 gt Linked or Middle Compressor Hold time cc 47 Linked or Middle Compressor Release cc 48 Linked or Middle Compressor MS On Off cc 49 Linked or Middle Limiter On Off cc 50 gt Linked or Middle Limiter Threshold cc 51 Linked or Middle Limiter Type cc 52 Linked or Middle Limiter Attack cc 53 Linked or Middle Limiter Hold time cc 54 Linked or Middle Limiter Release cc 55 Linked or Middle Limiter Over Easy cc 56 gt Linked or Middle Limiter Auto cc 57 Linked TCM On Off cc 58 Linked TCM Time cc 59 gt Linked Output Effect Bits cc 60 Linked Output Effect Dither cc 61 Linked Output Effect Shape cc 62 Linked Output Effect Dither Out cc 63 Linked or Middle Parametric Side Chain EQ On Off cc 64 Linked or Middle Parametric Side Chain EQ Type cc 65 gt Linked or Middle Parametric Side Chain EQ Band1 Fc cc 66 gt Linked or Middle Parametr
95. ording a kick drum If analog tape measures 55 dB from the 396 THD point down to the RMS noise floor and the peaks of the kick drum exceed the 396 THD level by say 15 dB and it still sounds good then we have 15 dB of extra useable headroom Therefore we end up with 70 dB of useable dynam ic range Throw in noise reduction and we push into the 90 something dB dynamic range territory of 16 bit digital This explains why well recorded analog master tapes make good sounding CD s with no objectionable noise One main drawback of digital is that it inherently lacks this forgiving and beneficial characteristic of analog recording Although digital conversion exhibits wide linear dynamic range when you run out of headroom for high level signals hard clipping or even ugly signal wrap around occurs not to mention that A D converters have their own nasty side effects such as going unstable when their modulator is overdriven with high level signals This shortcoming of digital conversion has drastically affected the way users operate their equipment Users are paranoid of overdriving the converter input and end up recording at lower levels to ensure that there is ample head room to allow for the large peaks that would ruin an otherwise perfect recording This of course compromises signal to noise performance since the signal is now closer to the noise floor Because users of digital equipment have to be extremely careful not to exceed 0 dB FS full scale they
96. patching routing consistent through all presets If you are matching clocks connecting inputs and outputs or programming MIDI CC s this is where it all happens For users who have connected and used digital gear before most of the following operations are very intuitive However for those users inexperienced with digital I O let s go into a bit of detail about digital connections CONNECTIONS First connecting digital inputs is not like jamming a patch cord into your patch bay or FX unit and calling it good There is a lot more information sent over digital lines than just the digitized audio Connecting one digital output to an input isn t the end of the story Once you have set up your digital connections all of the units in the chain are not only receiving digitized audio they are also slaved to a master clock The quality of your cables master clock connection length of cable etc affect how each unit will behave Cable lengths should be kept as short as possible The industry standard formats at this time are AES EBU and S PDIF AES EBU is characterized by a three pin XLR style cable S PDIF is characterized by a coaxial RCA style cable One of the most common user errors is to confuse analog XLR cables with AES EBU cables or analog RCA cables with S PDIF cables Always buy specified AES EBU and S PDIF cables AES EBU cables are 110 ohms and S PDIF cables are 75 ohms Incorrect impedance will cause sync errors and other digital
97. put gain controls These controls allow the con nection of nominal levels of either 10dBV or 4dBu 1 2 Front Panel cont Analog Level Meters These meters monitor analog input and output For more on meters refer to Section 3 TSE Audio Level Meters These meters monitor the level of Tape Saturation Emulation Refer to Type IV in Section 3 LCD Display The large LCD display shows the program curve digital meters parameters and modules selected by the function buttons and the DATA WHEEL Digital input Program channel on Chain element Threshol Within program ain eleme output meters number stereo link indicator identifier Meee peak and average Multi Band Compressor n i m rd H O Gate De esser Le nd m px Limiter S chainEa Ga 3 E 12045678910 Type iv sil N Dynamics LAST p curve graph ic 2 orap z E hola EE musee 2 ps 4 EP musee gg kHz dB 35 E emuSec 105 90 75 80 45 30 15 0 15 3 parameters per page Parameter Gain Reduction meter 5 measurement arameter T py TM page number Cool ion Fig 1 1 indicator DataW heel Selector The DATA WHEEL changes selected parameters programs etc Pushing the DATA WHEEL moves the cursor from parameter to parameter Function Buttons The function buttons allow access to the programs modules utilities and parameters of the QUANTUM II Power Switch Tums the QUANTUM II on and off The Curve Window After you have chosen a p
98. r Gate Ratio cc 85 gt Linked Band3 Compressor Gain cc 86 gt Linked Band3 Compressor Attack cc 87 Linked Band3 Compressor Hold time cc 88 Linked Band3 Compressor Release cc 89 gt Linked Band4 Compressor On Off cc 90 gt Linked Band4 Compressor OverEasy cc 91 Linked Band4 Compressor Auto On Off cc 92 Linked Band4 Compressor Threshold cc 93 Linked Band4 Compressor Gate Ratio cc 94 Linked Band4 Compressor Gain cc 95 gt Linked Band4 Compressor Attack cc 96 Linked Band4 Compressor Hold time cc 97 Linked Band4 Compressor Release cc 98 Linked Band1 Limiter On Off cc 99 Linked Band1 Limiter Threshold cc 100 gt Linked Band1 Limiter Attack cc 101 gt Linked Band1 Limiter Hold time cc 102 gt Linked Band1 Limiter Release cc 103 gt Linked Band2 Limiter On Off cc 104 gt Linked Band2 Limiter Threshold cc 105 gt Linked Band2 Limiter Attack cc 106 gt Linked Band2 Limiter Hold time cc 107 gt Linked Band2 Limiter Release cc 108 gt Linked Band3 Limiter On Off cc 109 gt Linked Band3 Limiter Threshold cc 110 gt Linked Band3 Limiter Attack cc 111 gt Linked Band3 Limiter Hold time cc 112 gt Linked Band3 Limiter Release cc 113 gt Linked Band4 Limiter On Off cc 114 gt Linked Band4 Limiter Threshold cc 115 gt Linked Band4 Limiter Attack cc 116 gt Linked Band1 Limiter Hold time d b X PROFESSIONAL PRODUCTS QUANTUM II User Manual 85 cc 117 gt Linked Band4 Lim
99. ress the NORM OUTPUT button twice This accesses the dither and noise shaping of the output module Set the Bits to 16 Choose which type of dither you would like to use refer to Section 4 16 Choose which type of noise shaping you would like to use refer to Section 4 16 Set the Dither Out to All if monitoring dither Press STORE if you wish to save non utility changes refer to Section 3 4 w CON e 56 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS 6 4 AnalogTracking Hardware 1 Connect external Mic Preamp s output to the QUANTUM II s input 2 Connect the QUANTUM II s output to analog tape machine input Software 1 Press the UTILITY button to enter the QUANTUM II s utility section Change the INPUT to ANALOG 2 Change the CLOCK to INT96 3 Press the NORM OUTPUT button twice This accesses the dither and noise shaping of the output module 4 Set the Bits to 24 5 Choose which type of dither you would like to use refer to Section 4 16 6 Choose which type of noise shaping you would like to use refer to Section 4 16 7 Press the NEXT PAGE button to scroll to next set of options 8 Set Dither Out to All 9 Press OTHER button to access TYPE IV conversion system refer to Appendix B 10 Press STORE if you wish to save non utility changes refer to Section 3 4 dba SQ Te 00 00 i oligos d b X Proressiowat PRODUCTS QUANTUM II User Manual 57 6 5 Digital Tracking Hard
100. rogram you may want to change some of the parameters to meet your specific needs One of the most useful tools available on the QUANTUM II for setting up a proper compression curve is the curve window In the curve window you can see the com bined effects of dynamics related parameters expressed in a graphical format The figure below shows the different parts of the curve window you will see as you edit the gate compressor and limiter functions of the QUANTUM II d b X PROFESSIONAL PRODUCTS QUANTUM II User Manual 3 1 2 Front Panel cont When working with the sidechain EQ or the in line EQ the curve window changes to show a graphical representation of the 5 parametric bands in a frequency grid Your adjustments to the 5 bands are shown in real time Additionally the De Esser has its own graphical way of displaying its parameters The frequency is shown on the bottom or X axis and the low frequency rolloff is shown on the side or Y axis 13 QUANTUM II Wizard The easiest way to program the QUANTUM II is using the Wizard To access the Wizard press and hold the PROGRAM button Once in the Wizard mode you will select the task that you are performing The QUANTUM II will automatically choose the correct chain type for your task If you select Mastering or Mixing the Wizard will then have you choose your music type After you have selected the music type you will then select the type of EQ gating compression and limiting Thes
101. rograms Setups sese 24 3 3 Saving a Setup 25 3 4 Saving a Program 26 3 5 The Bypass Function 27 3 6 MEER nennt 27 3 7 Monitor Outputs ucesneeseesenensennnn 29 Section 4 Detailed Parameters 4 1 Multiband Compression 32 4 2 Broadband Compression 34 4 3 Multiband Gate 35 4 4 Broadband Gate in 36 4 5 Multiband Limiting sees 37 4 6 Broadband Limiting sss 38 MID 40 4 8 KOVED 4 anser it 40 4 9 SEQ irradiano e e eret 41 4 10 Type IV estes mettere m ere tmo 42 4 11 Stereo Adjust sse 42 4 12 Ambience eese 43 Table of Contents bx sorso PRODUCTS 419 TEM iter RR E 43 AVA D e BSSOF ansehen 43 4 15 Normalization esee 44 2 16 UtpUL i oer eroe ere re ied 44 4 17 MS middle side Encoding Decoding 45 Section 5 Utilities BFL Input iu oce ar caret alianti 48 5 2 QUulpUl ione nonne o RE 48 5 3 Digital Input Controls eese 49 5 4 MIDI CC Maps alal 49 5 5 MIDI Channels enisi asitoe 50 5 6 MIDI Program ChangesS 50 5 7 SY SEX DUMP kennen 50 5 8 Setup SYSEX Data 50 5 9 A D Calibrate iii 51 5 10 MISC i tse dee n e tne re ahead 51 Section 6 Application Guide 6 1 Analog Mastering 54 6 2 Digital Mastering 55 6 3 DAW 10 DAT usa 56 6
102. st level reaches but does not go over 0 dBFS The gain optimize can be accessed from the Normalizer by pressing the EDIT ALL BAND button This starts the gain optimize sample period The EDIT ALI BAND button must be pressed to complete the gain optimize sample period EDIT ALI BAND and PROGRAM are the only but tons that will allow the user to exit the gain optimize As the gain is being optimized the out put gain is set to 12 dBFS to compensate for any peaks in the program material If the PRO GRAM button is pressed during the gain optimize operation the output gain level will be set to it s previous level and the QUANTUM II will go back to the program mode Within the NORM OUTPUT menu the following parameters are user adjustable Normalize O n Off Turms the Normalizer on or off 44 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS Level 12 dB to 12 dB The final output stage of the QUANTUM II This lets you adjust the final volume you send out of the unit Ceiling 3 0 to 0 0 dBFS This parameter allows you set the overall output ceiling level of normalization 4 16 Output Bits 8 to 24 The selection of the QUANTUM II s final output word length 8 16 20 or 24 bit word lengths can be selected See Figure H 1 in the Appendix pg 81 Dither SNR HPTPDF TPDF OFF Select from one of 3 dither algorithms HPTPDF and TPDF are the text book versions SNR is the dbx proprietary dither algorithm 4 16 Output cont Shaping
103. taking place in the compressor section if the threshold is not being exceeded no matter what the other compressor settings are The next part of the thresh old meter is the o It represents the OverEasy range of compression When the signal level is in the OverEasy range the o part of the meter will be blackened indicating that the sig nal is in the OverEasy mode of compression For a complete explanation of the OverEasy parameter see Section 4 The third segment of the compressor meter is the plus sign It is blackened when the signal is being fully compressed at the ratio set by the Ratio Parameter 28 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS 3 6 Meters cont Limiter LISI The limiter s threshold meter works on the same principle When the signal is under the thresh old setting the signal is not being processed by the limiter section The next part of the threshold meter is the o It represents the OverEasy range of compression When the signal exceeds the threshold set in the limiter section the plus sign will darken and gain reduction will begin to occur as a result of the signal exceeding the limiter s threshold Gate Expander GC When the signal is under the threshold set in the gate section the gate is closed or signal is being attenuated When the signal is under the threshold the minus sign is darkened and when the signal passes over the threshold the plus 4 sign is darkene
104. te view of the parameters available in each Multiband Dynamic Module Navigating the Multiband Compressor Navigate through the Pages by depressing Next Page or Prev Page successively until arriving at the desired Page PREV PAGE NEXT PAGE gt COMPRESSOR Page 1 Page 2 Page 3 Navigate through Compr On Loc Off Threshold Attack the bands b OverEasy Ratio Hold Danes Dy Auto Loc On Off Gain Release depressing the Compressor button successively until arriving at the desired band Threshold Attack Ratio Hold Gain Release Band 2 On Off Threshold Attack OverEasy Ratio Hold Gain Release Band 3 On Off Threshold Attack OverEasy Ratio Hold Gain Release Band 4 On Off Threshold Attack OverEasy Ratio Hold Auto Gain Release Navigate through the Parameters on each Page by depressing the data wheel Rotating the data wheel changes the value of the Parameter d b x PROFESSIONAL PRODUCTS 8 QUANTUM II User Manual 2 2 Broadband Compressor Navigating the Broadband Compressor Navigate through the Pages by depressing Next Page or Prev Page successively until arriving at the desired Page PREV PAGE NEXT PAGE gt COMPRESSOR Page 1 Page 2 Compr On Loc Off Threshold Page 3 Page 4 MS On Off OverEasyn Ratio Auto Loc On Off Gain Navigate through the Parameters on each Page by depressing the data wheel Rotating the data wheel changes the value of the Parameter
105. the QUANTUM II s AES EBU or S PDIF OUTPUT to digital recorder Software 1 Press the UTILITY button to enter the QUANTUM IT s utility section Change the INPUT to ANALOG 2 Change the CLOCK to desired internal sample rate Press the NORM OUTPUT button twice This accesses the dither and noise shaping of the output module 4 Set QUANTUM II to resolution of your recording device 8 16 20 or 24 bit 5 Choose which type of dither you would like to use refer to Section 4 16 6 Choose which type of noise shaping you would like to use refer to Section 4 16 7 Press the NEXT PAGE button to scroll to next set of options 8 9 1 w Set dither out to All if you are monitoring the dither Press OTHER button to access TYPE IV conversion system refer to Appendix B 0 Press STORE if you wish to save non utility changes refer to Section 3 4 E d b X ProressionaL PRODUCTS QUANTUM II User Manual 61 6 9 Sample Rate Converter Hardware 1 Connect AES EBU or S PDIF output of the digital source to the QUANTUM II s AES EBU or S PDIF input 2 Connect the QUANTUM II s AES EBU or S PDIF output to AES EBU S PDIF of DAT machine Software 1 Press the UTILITY button to enter the QUANTUM IT s utility section Change the INPUT to AES EBU or S PDIE 2 Change the CLOCK to AES EBU or S PDIF 3 Set SRC to the desired sample frequency 4 Press the NORM OUTPUT button twice This accesses the dither and noise shapi
106. ukaisesti VARNING Explosionsfara vid felaktigt batteribyte Anv nd samma batteri typ eller en ekvivalent typ som rekommenderas av apparattil Iverkaren Kassera anv nt batteri enligt fabrikantens instruk tion ELECTROM AGNETIC COMPATIBILITY This unit conforms to the Product Specifications noted on the Declaration of Conformity Operation is subject to the fol lowing two conditions this device may not cause harmful inter ference and this device must accept any interference received including interference that may cause undesired operation Operation of this unit within significant electro magnetic fields should be avoided use only shielded interconnecting cables U K MAINS PLUG WARNING A molded mains plug that has been cut off from the cord is unsafe Discard the mains plug at a suitable disposal facility NEVER UNDER ANY CIRCUMSTANCES SHOULD YOU INSERT A DAMAGED OR CUT MAINS PLUG INTO A 13 AMP POWER SOCKET Do not use the mains plug with out the fuse cover in place Replacement fuse covers can be obtained from your local retailer Replacement fuses are 13 amps and MUST be ASTA approved to BS1362 DECLARATION OF CONFORMITY Manufacturer s Name Manufacturer s Address dbx Professional Products 8760 S Sandy Parkway Sandy Utah 84070 USA declares that the product Product name dbx quantum II Product option N A conforms to the following Product Specifications Safety EN 60065 1993 IEC65 198
107. use refer to Section 4 16 6 Choose which type of noise shaping you would like to use refer to Section 4 16 7 Press the NEXT PAGE button to scroll to next set of options 8 Set Dither Out to All 9 Press OTHER button to access TYPE IV conversion system refer to Appendix B 10 Press STORE if you wish to save non utility changes refer to Section 3 4 NN IR Os Yir E E O zr j E uu d b X PROFESSIONAL PRODUCTS QUANTUM II User Manual 59 6 7 Digital Mixing Hardware 1 2 Connect AES EBU or S PDIF output of the digital console to the QUANTUM II s AES EBU or S PDIF input Connect the QUANTUM II s AES EBU or S PDIF output to AES EBU S PDIF of DAT machine Software 1 w COND ne Press the UTILITY button to enter the QUANTUM IT utility section Change the INPUT to AES EBU or S PDIE Change the CLOCK to AES EBU or S PDIF Press the NORM OUTPUT button twice This accesses the dither and noise shaping of the output module Set the Bits to 16 Choose which type of dither you would like to use refer to Section 4 16 Choose which type of noise shaping you would like to use refer to Section 4 16 Set the Dither Out to All if monitoring dither Press STORE if you wish to save non utility changes refer to Section 3 4 60 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS 6 8 Analog to Digital Converter Hardware 1 Connect line inputs to QUANTUM II s analog inputs 2 Connect
108. ves the performance of any A D converter from low cost 16 bit to high perfor mance 24 bit And no decoding is necessary beyond the conversion process As we have previously mentioned digital systems have a wide linear region compared to analog tape and the dynamic range of A D converters has improved significantly in recent years The dbx Type IV Conversion System takes advantage of this and utilizes the top 4 dB of the A D converter s linear dynamic range to create a logarithmic overload region This allows high level transient signals passing far above the point where the overload region begins to be ade quately represented in just 4 dB of the converter s dynamic range whereas a typical A D converter would clip With Type IV you can never clip the A D converter Converted Signal Level dB FS A D Clip Point 4 0 44 8 12 Input Figure 1 Converted Level vs Input Level Fig 1 illustrates this concept showing the level of the converted signal below and above the start of the overload region The converted signal level is plotted along the Y axis vertical axis of the plot vs the level of the input signal along the X axis horizontal axis The logarithmic mapping of the overload region begins 4 dB below 0 dB FS full scale of the A D converter What this shows is that below 4 dB FS in the linear region the output signal is the same as the input signal Above this in the logarithmic region high level input signals get
109. w through the QUANTUM II QUANTUM II User Manual d b X PROFESSIONAL PRODUCTS digital input DSP Software Based igital Operations analo meter meter n outpu Dynamics Sample Rate Processor Converter meter Clone Bypass push and hold Bypass for 2 seconds E 23 ES digital ain input reduction meter analog input meter analog input TYPE IVIM Conversion analo outpu control A D Convertor control Fig 1 2 1 5 Mastering and the Quantum Il The Quantum ll is a Mastering Processor that has many features Multiband compression Multiband gating Multiband limiting Parametric equalizer Normalize function with gain optimization 8 24 bit dither with noise shaping These tools used together can give your recording studio the power to create the big sound associated with a mastered recording Traditionally mastering was accomplished by a combination of compression and equalization Specifically multiband compression was used to allow the mastering engineer to control the dynamics of the mix without making the recording seem lifeless The QUANTUM II has four bands of multiband compression Multiband compression is a three step process First a crossover is used to separate the audio into different frequency bands Next separate compressors process the individual bands Finally the bands are summed back together Because these ba
110. want to overwrite the corresponding Setup number in the destination unit To dump an individual Setup do the following 5 8 Setup SYSEX Data cont Enter the Utility menu by pressing the UTILITY button once Press NEXT PAGE button until page 8 is reached Use the DATA WHEEL to select which setup you would like to dump Press the DATA WHEEL to change the cursor location to the next selection Select the name of the preset you would like to dump Press the UTILITY button to start the dump eo o0 Em wh re 5 9 A D Calibrate A D CALIBRATE This page of Utilities is a calibration section for the analog to digital converter chips To cal ibrate the converters first turn the input controls of the QUANTUM II fully counter clock wise Calibrations performed with these controls open at all could result in inaccurate cal ibrations giving the QUANTUM II poor processing performance After the input controls have been turned to the o position press the UTILITY button If the calibration is not successful the following text will appear in the third parameter area A D CAL FAIL If this happens you should tum the QUANTUM II off then back on If the problem persists call dbx technical sup port at 1 801 568 7660 for assistance Call after the unit is allowed to warm up to operating tem perature approx 10 minutes CONTRAST The contrast selection adjusts the displays visibility and ranges from 1 to 15 AUTOLOAD ON OFF
111. ware 1 Connect external Mic Preamp s output to the QUANTUM IT s input 2 Connect the QUANTUM Il s AES EBU or S PDIF output to the digital recorders input Software 1 Press the UTILITY button to enter the QUANTUM II s utility section Change the INPUT to ANALOG 2 Change the CLOCK to desired sample rate 3 Press the NORM OUTPUT button twice This accesses the dither and noise shaping of the output module 4 Setthe Bits to match the digital recorder s input format 5 Choose which type of dither you would like to use refer to Section 4 16 6 Choose which type of noise shaping you would like to use refer to Section 4 16 7 Press the NEXT PAGE button to scroll to next set of options 8 Set Dither Out to All if monitoring dither 9 Press OTHER button to access TYPE IV conversion system refer to Appendix B 10 Press STORE if you wish to save non utility changes refer to Section 3 4 58 QUANTUM II User Manual dbx PROFESSIONAL PRODUCTS 6 6 Analog Mixing Hardware 1 Connect the analog console s outputs to the QUANTUM IT s analog inputs 2 Connect the QUANTUM II s analog outputs to the recorder Software 1 Press the UTILITY button to enter the QUANTUM IT s utility section Change the INPUT to ANALOG 2 Change the CLOCK INT96 3 Press the NORM OUTPUT button twice This accesses the dither and noise shaping of the output module 4 Set Bits to 24 5 Choose which type of dither you would like to
112. we apply our superior dynamics processing technology to the digital mas tering process This manual will be your guide to understanding the full functionality of the powerful QUAN TUM II read it carefully After you have become familiar with the unit we encourage you to experiment and find creative ways that the QUANTUM II can help you make a better sound ing mix L1What is QUANTUM II The dbx QUANTUM II is the first mastering processor that offers a sampling rate of up to 96kHz a true 48 bit digital signal path with up to 24 bit digital output Below are some of QUANTUM IT features 4 Band Stereo Gating Compression and Limiting 5 Band Parametric EQ with either an adaptive Q or a constant Q response Hi and Low shelves w switchable slopes 3 4 5 6 9 and 12 dB octave EQ can be positioned pre dynamics or post dynamics 5 Band Parametric Side Chain EQ with either an adaptive Q or a constant Q response and MS middle side EQ Dual Mono or True Stereo Operation with True RMS Power Summing Patented TYPE IV Conversion System with TSE Tape Saturation Emulation Normalizer flexible gain optimization Stereo adjust increased control of stereo imaging Dither outputs to 8 16 20 or 24 bits and noise shaping Sample rate conversion full up down PC GUI control via the RS232 port MS Middle Side EQ within all stereo linked setups Ambience Effect Multi Band chain with De Esser MS Middle Side Compressor Meter
113. x Professional Products recommends that the sync input be terminated whenever you are using a Superclock e g DigiDesign ProTools sync In general leaving the sync input terminated is the safest thing to do Certain configurations may require the sync input to be unterminated however For these cases use the following procedure to change the sync input termination setting 1 First ground yourself prior to opening the QUANTUM II chassis to prevent ESD damage 2 Open the chassis by removing two screws on each side of the chassis and the top two center Allen head screws as shown 3 Locate the jumper block shown in the illustration below STNC IN TERMINATION JUMPER 3 Remove the jumper from the terminated position and place it in the unterminated position 4 Close the chassis and replace the screws in the reverse order As previously mentioned certain house sync configurations will require you to change the default position of the termination jumper For example if you run your sync to several pieces of equipment using a tapped configuration using BNC T s as shown below only the last box box C would be terminated Unfortunately some equipment does d b X ProressionaL PRODUCTS QUANTUM II User Manual 75 C 2 QUANTUM II Sync Input cont not allow the user to change the termination setting These pieces of equipment are usually provided with a permanent termination If you use QUANTUM II with another piece of term
114. y as it came in a digital clone To use the CLONE BYPASS mode simply press and hold the BYPASS button for 2 seconds All other function but tons cannot be accessed until the BYPASS button is pressed again The TYPE IV Conversion is still active in some bypass modes to protect against digital clip If TYPE IV were shut off with bypass then a signal that enters TSE would cause audible clipping The following list may help clarify BY PASS with ANALOG INPUT the dither and TYPE IV will still be active BYPASS with DIGITAL INPUT digital input levels the high pass and the dither will still be active CLONE BYPASS with ANALOG INPUT TYPE IV will still be active but uneditable CLONE BYPASS with DIGITAL INPUT is an exact output of the input nothing will be active Analog Meters The QUANTUM Ils analog input meters show the signal after the input controls These analog meters are referenced in dBu The meter will accurately represent the input level only when the input controls are set to zero Analog Meters TSE Level Meters These meters show that the program material has entered into Tape Saturation Emulation They will only operate if TYPE IV is ON The 0 will light when the program material has entered into TSE Increments of 4dB steps show the increasing entry into TSE A general usage of TSE is 0 4dB vocals 4 8dB guitar 8 12dB drums highly transient material Of course the use of TSE is hig
115. y shall not be liable for any consequential damage as a result of the product s use in any circuit or assembly 4 dbx reserves the right to make changes in design or make additions to or improvements upon this product without incurring any obligation to install the same additions or improvements on products previously manufactured 5 The foregoing is in lieu of all other warranties expressed or implied and dbx neither assumes nor authorizes any person to assume on its behalf any obligation or liability in con nection with the sale of this product In no event shall dbx or its dealers be liable for special or consequential damages or from any delay in the performance of this warranty due to caus es beyond their control iv QUANTUM II User Manual d b X PROFESSIONAL PRODUCTS Getting Started dbx PROFESSIONAL PRODUCTS 1 1 Rear Panel Connections OUTPUT INPUT OUTPUT INPUT Analog Input O utput Connectors Each analog channel features both XLR and 1 4 TRS electronically balanced connections They may be used in a balanced or unbalanced configuration MIDI In and Out Thru Connectors These connectors provide full MIDI functionality to the QUANTUM II The Out Thru jack allows you to use the QUANTUM II at any point in the MIDI chain For a complete guide to all the MIDI and SYSEX functionality of the QUANTUM II see Section 3 Software Operations RS 232 Port This port is used to make connections between the Quantum II
116. ype IV On Off cc 77 gt Channel 2 Type IV Color cc 78 gt Channel 2 Parametric EQ On Off cc 79 gt Channel 2 Parametric EQ Position cc 80 gt Channel 2 Parametric EQ Type cc 81 gt Channel 2 Parametric EQ Band1 Freq cc 82 gt Channel 2 Parametric EQ Band1 Slope cc 83 gt Channel 2 Parametric EQ Band1 Lvl cc 84 gt Channel 2 Parametric EQ Band2 Freq cc 85 Channel 2 Parametric EQ Band2 Q cc 86 Channel 2 Parametric EQ Band2 Lvl cc 87 gt Channel 2 Parametric EQ Band3 Freq cc 88 gt Channel 2 Parametric EQ Band3 Q cc 89 gt Channel 2 Parametric EQ Band3 Lvl cc 90 gt Channel 2 Parametric EQ Band4 Freq cc 91 Channel 2 Parametric EQ Band4 Q cc 92 gt Channel 2 Parametric EQ Band4 Lvl cc 93 Channel 2 Parametric EQ Band5 Freq cc 94 gt Channel 2 Parametric EQ Band5 Slope cc 95 gt Channel 2 Parametric EQ Band5 Lvl cc 96 gt Channel 2 De Esser On Off cc 97 Channel 2 De Esser HP Frequency cc 98 Channel 2 De Esser Amount cc 99 gt Channel 2 De Esser Type cc 100 gt Channel 2 De Esser Width cc 101 gt Channel 2 Gate On Off cc 102 gt Channel 2 Gate Threshold cc 103 gt Channel 2 Gate Gate Ratio cc 104 gt Channel 2 Gate Attack cc 105 gt Channel 2 Gate Hold time cc 106 gt Channel 2 Gate Release cc 107 Channel 2 Max Attenuation cc 108 gt Channel 2 Compressor On Off cc 109 gt Channel 2 Compressor OverEasy cc 110 gt Channel 2 Compressor Auto On Off cc 11
117. ypically 117 dB with program material unweighted 22 kHz bandwidth 0 002 typical at 4 dBu 1 kHz input gain at 0 dB 20 Hz to 20 kHz 0 0 5 dB lt 85 dB at 1 kHz input gain at 0 dB 24 bit 115 dB typical A weighted 22 kHz bandwidth 112 dB typical unweighted 22 kHz bandwidth 0 002 typical at 4 dBu 1 kHz output gain at 0 dB 20 Hz to 20 kHz 0 0 5 dB lt 85 dB at 1 kHz output gain at 0 dB 88 QUANTUM II User Manual d b X PROFESSIONAL PRODUCTS TPDF Dither Audio Precision FFT SPECTRUM ANALYSIS DIGITAL 05 05 99 23 33 14 O bare ar 0 Bar a Fa Ap uem mua Bu ce rex gun Eten rp ari reri nh mr ef f pair anm Pr ril it n P rie RA pct FA mer ue n jefa FU a Oo dk dk Bk Bk 10k 12k Tak 18k 18k 20k Egi y Fig Hii Hz TPDF Dither a 24 Bit word output b 20 Bit word output c 16 Bit word output d 8 Bit word output Parameters Input 60dBFS 1 kHz FFT Length 2048 Sample Rate 48 Khz Averages 32 Graph Steps 1024 d b X PROFESSIONAL PRODUCTS QUANTUM II User Manual 89 Noise Shaping Audio Precision FFT SPECTRUM ANALYSIS DIGITAL 05 05 99 23 20 36 1 00 tr lenta b amma d i 2120 M mer repo remm omnem termi a e emer zier mz p tent unions nega ia um TEST pr ae SL m a 140 150 160 zik di Bk Bi 10 12 tak 16 18 Ak Zak Fig H 2 Hz 16 Bit TPDF dither a Shape off b with shape set to S1 c with shape set to S2 Parameters Input 60dBFS 1 kHz FFT Len

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