iEQ manual -Final - Big AV Connection
Contents
1. Input Gain Control This control sets the signal level to the equalizer It is capable of 12dB to 12dB of gain Its effect is apparent by viewing the OUTPUT LEVEL BAR GRAPH EQ Bypass This switch removes the graphic equalizer section from the signal path The BYPASS switch does not however affect the INPUT GAIN AFS or LOW CUT filters This but ton lights red when the EQ is in bypass mode Boost Cut Range Selection Switch This switch selects which of the two boost cut ranges the equalizer will use either 6dB or 15dB The button lights red when the 15dB range is select ed Output Level Bar Graph These four LEDs indicate output level of the equalizer It monitors the level at the output of the equalizer after all other processing including the limiter Clip LED This LED lights whenever any internal signal level reaches 1dB below clipping which may occur when any of the following happen 1 the input signal is hotter than 20dBu 2 excessive gain is applied by the input gain control or 3 excessive boost is applied using the frequency sliders Gain Reduction Meter These four LEDs indicate the amount of gain reduction being induced by the setting of the PeakStopPlus LIMITER THRESHOLD control as the signal level from the graphic EQ section exceeds this limiter threshold setting PeakStopPlus Limiter Threshold Control This control eng2. CHANNEL 2 INPUTS CHANNEL 1 iEQ3 I dual channel 31 band graphic equalizer dbx PROFESSIONAL PRODUCTS A 100V 5o 60Hz 120040 60Hz T CAUTION CHANNEL 2 INPUTS CHANNEL 1 Power Cord Receptacle Connects AC power to the equalizer Power Switch Switches the power on and off Always make audio connections with the power switch in the off position Input Connectors Three types of input connectors are provided for input connections female locking XLR type connectors 1 4 tip ring sleeve phone jack connectors and Euroblock The maximum input level that the equalizer can accept is 20dBu ref 0 775Vrms Output Connectors Three types of output connectors are provided for output connections male XLR type connectors 1 4 tip ring sleeve phone jack connectors and Euroblock Front Panel Connections iEQI5 dual channel I5 band graphic equalizer ap momm mesi sf S amp d E OUTPUTLEVEL GANREDUCTION gg o ch wO g g wr an inert AE og 3 iEQ User Manual d b x PROFESSIONAL PRODUCTS a o 410 18 cure tt 0 ae en O g g Neur NRO BYPASS GAN CHANNEL2 Low or ine tt on REDUCTION 100 160 250 400 630 tk 16k 25k 4k 63k 10k 16k iEQ 15 o EqualizeriLimiter with TYPE VNR and AFS O iEQ31 dual channel 31 band graphic equalizer CHANNEL 1 l
3. gt a I tt I Tit Tht ILLT P I u ai win i I H m f i u ret i i Ma mitra aa ao EEEN H qt AEN I il Foa I l iit i CO i l i i li I Al 1 i il U J IEQ 31 Equalizer Limiter wit NR and AFS Ic gt fefc a Fife gt PROFESSIONAL PRODUCTS I M c Tt T ma H Ti Thi ctl I or i I i mi i Tt i D4 BC fl i m f I CE J i il I i ii i CO nia i d I i i mit a pir ih Perret ters it j k a Tet m i i
4. ANY OF THE VENTILATION OPENINGS INSTALL IN ACCORDANCE WITH THE MANUFACTURER S INSTRUCTIONS DO NOT INSTALL NEAR ANY HEAT SOURCES SUCH AS RADIATORS HEAT REGISTERS STOVES OR OTHER APPARATUS INCLUDING AMPLIFIERS THAT PRODUCE HEAT ONLY USE ATTACHMENTS ACCESSORIES SPECIFIED BY THE MANUFACTURER UNPLUG THIS APPARATUS DURING LIGHTNING STORMS OR WHEN UNUSED FOR LONG PERIODS OF TIME Do not defeat the safety purpose of the polarized or grounding type plug A polar ized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or third prong are pro vided for your safety If the provided plug does not fit your outlet consult an elec trician for replacement of the obsolete outlet Protect the power cord from being walked on or pinched particularly at plugs con venience receptacles and the point where they exit from the apparatus Use only with the cart stand tripod bracket or table specified by the manufacture or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip over Refer all servicing to to qualified service personnel Servicing is required when the apparatus has heen damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the appa ratus has heen exposed to rain
5. 0 0 10 18 System Lockout Menu m CC CHANNEL 2 OUTPUT LEVEL dBu I iEQ User Manual d b XC ProressiowaL PRODUCTS Live Filter Lift Time Menu Press the lt AFS gt button on CHANNEL 2 to select through selections within menus The selections for System Lockout are Live Filter Lift Off Live Filter Lift Short and Live Filter Lift Long and will be represented by a lit LED once selected The following illustra tion show the selections and the corresponding LEDs indicators Live Filter Lift Time Menu CHANNEL 2 OUTPUT LEVEL dBu AFS Normal vs 6 Fixed 6 Live Press the lt AFS gt button on CHANNEL 2 to select through selec tions within menus The selections for System Lockout are AFS Normal Mode All 12 filters are live and AFS Normal vs 6 Fixed 6 Live Menu and will be represented by a lit LED once select ed The Fixed filters stay closed until cleared and live filters continuously update in the order that they were set The following illustration show the selections and the corresponding LEDs indicators 10 18 AFS Normal vs 6 Fixed 6 Live Menu qa CHANNEL 2 OUTPUT LEVEL dBu 4 Exit Once your selections have been made press and hold the lt AFS gt button on CHANNEL 1 until Filter Clear LED Sequence on CH1 Meters appears to exit dbx PROFESSIONAL PRODUCTS iEQ User Manual 2 Rear Panel Connections iEQI5 dual channel I5 band graphic equalizer AT WATTS CAUTION
6. 0dB 1 LED yellow green or red 1 LED red 1 LED red 1 LED red 1 LED red 120VAC 60Hz 220 240VAC 50 60Hz 17 Watts IEC receptacle 3 5 H X 19 W X 7 9 D 8 9cm x 48 3cm x 20 1cm 5 25 H X 19 W X 7 9 D 13 4cm x 48 3cm x 20 1cm 7 5 lbs 9 25 Ibs 8 5 Ibs 10 25 lbs Note Specifications subject to change Lox srorss 0 roover SSS T dbx PROFESSIONAL PRODUCTS H A Harman International Company 8760 South Sandy Pkwy Sandy Utah 84070 Phone 801 568 7660 Fax 801 568 7662 Questions or comments Eemail us at customer dbxpro com or visit our World Wide Web home page at www dbxpro com 18 1904 A
7. N Live As colours of the cores in the mains lead of this appliance may not correspond with the coloured markings identifying the ter minals in your plug proceed as follows e 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 e The core which is coloured blue must be connect ed to the terminal marked N or coloured black The core which is coloured brown must be con nected 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 PN NEUTRAL BLUE WHITE _ E EARTH GND GREENYEL GREEN 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 chassis and earth ground are touched simultaneously WARNING FOR YOUR PROTECTION READ THESE INSTRUCTIONS KEEP THESE INSTRUCTIONS HEED ALL WARNINGS FOLLOW ALL INSTRUCTIONS DO NOT USE THIS APPARATUS NEAR WATER CLEAN ONLY WITH A DRY CLOTH DO NOT BLOCK
8. Performance Frequency Response Dynamic Range THD Noise Interchannel Crosstalk Noise Reduction Digital Resolution Sample Frequency Latency Function Switches AFS TYPE V NR EQ Bypass Low Cut Range Indicators Output Level Gain Reduction Type V NR EQ Bypass Clip Low Cut 15dB Power Supply Operating Voltage Power Consumption Mains Connection Physical Dimensions iEQ15 iEQ31 Dimensions h x x p Weight iEQ15 iEQ31 Shipping Weight iEQ 15 iEQ 31 1 4 TRS female XLR pin 2 hot and Euroblock Electronically balanced unbalanced RF filtered Balanced 40k unbalanced 20kQ 22dBu balanced or unbalanced gt 40dB typically gt 55dB at 1kHz 1 4 TRS male XLR pin 2 hot and Euroblock Balanced unbalanced RF filtered Balanced 1202 unbalanced 602 20dBu balanced unbalanced into 2kQ or greater 20Hz to 20kHz 0 5 0 25dB gt 113dB A weighted 0 003 typical at 4dBu 1kHz lt 80dB 20Hz to 20kHz Up to 10dB of dynamic broadband noise reduction 24 bits 48kHz 2msec Activates dbx AFS Advanced Feedback Suppression Activates dbx Type V Noise Reduction Bypasses the graphic equalizer section in the signal path Activates the 40Hz 18dB octave Bessel high pass filter Range Selects either 6dB or 15dB slider boost cut range 4 LED bar graph Green Green Yellow Red at 10 0 10 and 18dBu 4 LED bar graph all Red at 0 3 6 and 1
9. ages the PeakStopPlus limiter It sets the threshold level at which 1 gain reduction will begin to occur It is capable of a range of OdBu through OFF 20dBu When the threshold control is set to OFF the limiter is effectively disabled and no gain reduction will occur AFS Advanced Feedback Suppression Switch This control engages the AFS function of the iEQ 15 and 31 If AFS is Off the filters are bypassed and the algorithm is halted the filters are not updated If AFS is On the filters are activeThe AFS modes are as follows AFS Mode AFS Button LED Color Bandwidth Q Off Off Music Low Green 1 10 Octave 14 5 Music Medium Yellow 1 20 Octave 29 Music High Red 1 80 Octave 116 Lift times are set up at power up Off Short 10 Minutes Long 60 Minutes d b XC proressional PRODUCTS iEQ User Manual 4 The iEQ 15 and 31 offer the exclusive patent pending AFS Advanced Feedback Suppression feedback elimination module The AFS uses Precision Frequency Detection and state of the art processing to determine the exact portions of a given frequency of your feedback that need to be removed instead of taking out large sections of your sound For more detailed informa tion regarding AFS please visit the AFS white paper section at www dbxpro com The AFS module of the iEQ 15 and 31 allow the user to optimize the elimination of feedback In the past graphic equalizers were used to eliminate feedback from a system This was a
10. d b x PROFESSIONAL PRODUCTS lal Dual Channel Digital Graphic EQ Limiter w Type V WR and AFS z ni k a z s Se n ad IMPORTANT SAFETY INSTRUCTIONS CAUTION RISK OF ELECTRIC SHOCK 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 internationally accepted symbols that warn of potential hazards with electrical products The lightning flash with arrowpoint in an equi lateral triangle means that there are dangerous voltages present within the unit The exclamation point in an equi lateral triangle indicates 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 during storms to prevent damage SAFETY INSTRUCTIONS NOTICE FOR CUSTOMERS IF YOUR UNIT IS EQUIPPED WITH A POWER CORD WARNING THIS APPLIANCE MUST BE EARTHED The cores in the mains lead are coloured in accordance with the following code GREEN and YELLOW Earth BLUE Neutral BROW
11. equency band centers of the iEQ 31 are marked at 1 3rd of an octave inter vals on ISO standard spacings while the frequency band centers of the iEQ 15 are marked at 2 3rds of an octave intervals on ISO standard spacings Low Cut Enable The LOW CUT button inserts when lit or removes the 18dB octave 40Hz Bessel low cut filter from the signal path When the LOW CUT switch is pushed in the LOW CUT filter is IN the audio path 5 iEQ User Manual d b X PROFESSIONAL PRODUCTS Basic Connection of the iEQ The iEQ Series Equalizers have balanced inputs and outputs that can be used with any balanced or unbalanced line level device To connect the equalizer to your sound system refer to the following steps e Turn off all equipment before making connections e Mount equalizer in a standard width rack Install the EQs in a rack with the rack screws provided It can be mounted above or below anything that does not generate excessive heat Ambient temperatures should not exceed 113 F 45 C when equipment is in use Although the unit s chassis is shielded against radio frequency and electromagnetic interference extremely high fields of RF and EMI should be avoided e Make audio connections via XLR 1 4 TRS jacks or Euroblock connectors according to applica tion needs All three types of connectors for the inputs and outputs can be used for balanced or unbalanced connections The use of more than one connector at a time for the inputs cou
12. erates excessive heat Ambient temperatures should not exceed 113 F 45 C when equipment is in use Although the unit is shielded against radio fre quency and electromagnetic interference extremely high fields of RF and EMI should be avoid ed where possible User Power Up Modes Unlike conventional graphic equalizers of the past the iEQ Series EQs offer you the ability to lockout access to frequency slider manipulation and reset AFS filter settings The procedure for these functions are as follows l Entry While applying power press and hold the lt AFS gt button on CHANNEL 1 until the following LED display sequence pattern on Chl Meters briefly appears 10 0 10 18 10 6 3 1 Power Up Prompt ED J ED J Channel 1 OUTPUT LEVEL GAIN REDUCTION dBu dB 2 Menus To select any one of the three available option which are 1 System Lockout 2 Live Filter Lift Time Menu and 3 AFS Normal vs 6 Fixed 6 Live Menu press the lt AFS gt button on CHAN NEL 1 to select through 1 of 3 menus The meter LEDs appear as follow 10 Power Up Menu E CHANNEL OUTPUT LEVEL dBu 3 Selections System Lockout Press the lt AFS gt button on CHANNEL 2 to select through selections with in menus The selections for System Lockout are System Unlocked and System Locked and will be represented by a lit LED once selected The following illustration show the selections and the corresponding LEDs indicators 1
13. ervice Contact IMforsenicsren in peia ii Warranty seo inarin aE OAR ii Installation Recommendations seeeee 1 Power Up Quick Key Options ee 1 Rear Panel Connections seistou 3 Front Panel Connections 3 Basic COMMECtiON cece cece eeeeeeneeesseeeseeeseeeeeentes 6 Block Diaeta ionen 7 SPCCHICATIONS ssori reiini aiaiai RANSA 8 Table of Contents EUSI EJAuEUNE dbx PROFESSIONAL PRODUCTS iEQ Operation dbx PROFESSIONAL PRODUCTS Congratulations on your purchase of the dbx Professional Products iEQ Series Graphic Equalizer Limiter with Type V noise reduction and AFS With an EQ heritage that has pro duced countless industry standard patents and dates back more than 30 years the dbx iEQ 15 and iEQ 31 easily live up to the dbx legacy of uncompromised sonic integrity In addition to unsurpassed equalization specs the iEQ series also offer built in necessities which include AFS Feedback Suppression Type V Noise reduction and PeakStopPlus limiting Besides including two 15 Band channels 2 3 octave GEQ 15 and two 31 band channels GEQ 31 of 1 3 octave equalization the iEQ 15 and iEQ 31 also offer 12 dB input gain range switchable 6 or 15 dB boost cut range 40mm faders XLR 1 4 and Euroblock inputs and outputs non conductive nylon sliders and an intuitive user interface with comprehensive output and gain reduction metering As always the inevitable result of our meticulous attention to detail and to
14. is 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 tele phone The company shall not be liable for any consequential damage as a result of the prod uct 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 connection with the sale of this product In no event shall dbx or its dealers be liable for special or con sequential damages or from any delay in the performance of this warranty due to causes beyond their control d b XC proressional PRODUCTS iEQ User Manual i Installation Recommendations FOR RACK MOUNT USE ONLY Install the iEQ in your rack with the provided rack screws When installed in a rack the unit should be positioned with enough room at least one 1U above the and 1U below the unit to allow proper ventilation The iEQ should not be mount ed above or below anything that gen
15. ld unbalance balanced lines cause phase cancellation short a conductor to ground or cause dam age to other equipment connected to the equalizer More than one output may be used simul taneously as long as the combined parallel load is greater than 600Q e Select the operating range with the boost Cut range selection switch Note Be sure to reduce audio levels at the power amplifiers when changing the setting of this switch as it may generate an audible transient e Apply power to the equalizer Connect the AC power cord to the AC power receptacle on the back of the equalizer Route the AC power cord to a convenient power outlet away from audio lines The unit may be turned on and off from the rear panel power switch or a master equip ment power switch Since the iEQ Series Equalizers consume a relatively small amount of power the units may be left on continuously dbx PROFESSIONAL PRODUCTS iEQ User Manual 6 Block diagram Input Gain Input e rer PFS fort te fo ose Lo Ee D Fron Panel Slide Pots Relay EA CLIP Detect le 1 g dbx iEQ 15 and 31 Graphic Equalizer f Micro Processor Programmable Logic Block Diagram Outputs aooo Output meter Sooo Gain Reduction XO AFS Red LED ae Bog AFS Green LED o x PROFESSIONAL PRODUCTS Inputs Connectors Type Impedance Max Input Level CMRR Outputs Connectors Type Impedance Max Output Level System
16. n acceptable method for eliminating feedback but when this method was precision tested the result clearly showed that a single 1 3 octave EQ slider was removing approximately half of the signal power With the AFS the module removes the feedback automatically and the propri etary precision AFS filters remove only a fraction of the frequency spectrum The following diagram shows AFS as opposed to competing competitive feedback eliminators and conventional graphic EQs s Ap Competitor s E a ee ee ee AFs Feedback r mE Elimination rt VW E i aE sI Octave EQ a dd lord boo Too 800 ax 1x TET 12k 13k 14k Hz dbx Type V Noise Reduction This button engages when lit the dbx Type V Noise Reduction circuit within the EQ Typically graphic equalizers raise the noise floor within the signal path and dbx s proprietary Type V noise reduction will reduce the apparent noise floor through its simultaneous encode decode process shown below The button lights when the dbx Type V Noise Reduction circuit is activated Simultaneous Encode Decode Control Type V Type V Encode Decode Frequency Band Slider Controls Fach one of these slider potentiometers will boost or cut at its noted frequency by 6dB or 15dB depending upon the position of the BOOST CUT RANGE switch When all the sliders are in the center detented position the output of the equal izer is flat The fr
17. or moisture does not operate normally or has been dropped POWER ON OFF SWITCH For products provided with a power switch the power switch DOES NOT break the connection from the mains MAINS DISCONNECT The plug shall remain readily operable For rack mount or installation where plug is not accessible an all pole mains switch with a contact separation of at least 3 mm in each pole shall be incorporated into the electrical installation of the rack or building FOR UNITS EQUIPPED WITH EXTERNALLY ACCESSIBLE FUSE RECEPTACLE Replace fuse with same type and rating only MULTIPLE INPUT VOLTAGE This equipment may require the use of a different line cord attachment plug or both depending on the available power source at instal lation 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 service personnel or equivalent This Equipment is intended for rack mount use only IMPORTANT SAFETY INSTRUCTIONS ELECTROMAGNETIC COMPATIBILITY This unit conforms to the Product Specifications noted on the Declaration of Conformity Operation is subject to the following two conditions e this device may not cause harmful interference and e this device must accept any interfer ence received including interference that may cause undesired operation Operation of this unit within significant electromagnetic fields sho
18. p quality componentry is exceptional sound performance and reliability This manual will be your guide to understanding the full functionality of the powerful iEQ series After you have become familiar with the unit we encourage you to experiment and find creative ways that the iEQ series can help you optimize your specific application Defining the iEQ The dbx iEQ Series Graphic Equalizer provide the user with the following features e Advanced Feedback Suppression AFS e Type V Noise Reduction e PeakStopPlus Limiting 1 3 amp 2 3 octave Constant Q frequency bands e Switchable boost cut ranges of 6 or 15 dB e 18 dB per octave 40Hz low cut filter 12 dB input gain range e XLR TRS and Euroblock Inputs and Outputs e Internal Toroidal Transformer e Dynamic range of greater than I 13dB e User Power Up Features e Relay Bypass for Power Failure System Protection i iEQ User Manual d b MX Proressionat PRooucTs 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 top 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 return 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 procedure
19. s 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 returned products will be accepted at the factory without a Return Authorization Number Please refer to the Warranty information on the following page which extends to the first 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 factory dbx will pay return shipping if the unit is still under war ranty 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 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 bur den 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 3 dbx liability under th
20. uld be avoided e 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 without 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 dbx Professional Products Manufacturer s Address 8760 S Sandy Parkway Sandy Utah 84070 USA declares that the product Product name dbx iEQ 15 amp dbx iEQ31 Note Product name may be suffixed by the letters EU Product option None conforms to the following Product Specifications Safety IEC 60065 1998 EMC EN 55013 1990 EN 55020 1991 Supplementary Information The product herewith complies with the requirements of the Low Voltage Directive 72 23 EEC and the EMC Directive 89 336 EEC as amended by Directive 93 68 EEC Vice President of Engineering 8760 S Sandy Parkway Sandy Utah 84070 USA Date March 26 2003 European Contact Your local dbx Sales and Service Office or Harman Music Group 8760 South Sandy Parkway Sandy Utah 84070 USA Ph 801 566 8800 Fax 801 568 7583 Table of Contents Defining the iE wsiciealaisscasihdanncnsiiacaann i S
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