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D-3500 User Manual (v1.2) PDF
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1. DIGITAL DUAL 15 BAND PARAMETRIC EQ FEEDBACK MANAGEMENT SYSTEM D3500_ownman_v1_2 indd 1 9 4 05 5 19 53 PM Safety Instructions Consignes de s curit Sicherheitsvorkehrungen Instrucciones de seguridad ACHTUNG Um die Gefahr eines Brandes oder Stromschlags zu verringern sollten Sie dieses Ger t weder Regen noch Feuchtigkeit aussetzen Um die Gefahr eines Stromschlags zu verringern sollten Sie weder Deckel noch R ckwand des Ger ts ent fernen Im Innern befinden sich keine Teile die vom Anwender gewartet werden k n nen berlassen Sie die Wartung qualifiziertem Fachpersonal Der Blitz mit Pfeilspitze im gleichseitigen Dreieck soll den Anwender vor nichtisolierter gef hrlicher Spannung im Ger teinnern warnen Diese Spannung kann so hoch sein dass die Gefahr eines Stromschlags besteht Das Ausrufezeichen im gleichseitigen Dreieck soll den Anwender auf wichtige Bedienungs und Wartungsan leitungen aufmerksam machen die im mit gelieferten Informationsmaterial n her beschrieben werden Wichtige Sicherheitsvorkehrungen 1 Lesen Sie alle Anleitungen bevor Sie das Ger t in Betrieb nehmen 2 Bewahren Sie diese Anleitungen f r den sp teren Gebrauch gut auf 3 Bitte treffen Sie alle beschriebenen Sicherheitsvorkehrungen 4 Befolgen Sie die Anleitungen des Herstellers 5 Benutzen Sie das Ger t nicht in der N he von Wasser oder Feuchtigkeit 6 Verwenden Sie zur Reinigung des Ger ts nur ein feuchtes Tuch 7 Blockieren
2. 1 FILTER SELECT switch Each of the 30 filters can be activated and set up by pressing the Filter Select switch 2 DYNAMIC LED When the Red LED is lit the filter is set to Dynamic Mode 3 RESONANCE LED Green LED indicating the filter is set to Resonance Mode 4 ACTIVE LED When the Amber LED is lit the filter is set to Actice Mode 5 FREQUENCY Control knob with LED light ring posi tion indicator used to set the center frequency of the indicator used to set the center frequency of the indicator selected filter from 20 Hz to 20 kHz 6 BANDWIDTH This control knob with LED light ring position indicator is used to adjust filter width and can indicator is used to adjust filter width and can indicator be set from 1 60th of an octave to 1 octave 7 GAIN Control knob with LED light ring position indicator used to adjust the gain from 16 dB boost to indicator used to adjust the gain from 16 dB boost to indicator 48dB cut 8 LEVEL METER Twelve segment LED meter display the input level and overload 9 LCD DISPLAY Backlit display that shows the various parameters under control by the operating system 10 DATA WHEEL Rotary encoder for entering parameter values 11 BYPASS switch When the red LED is on the digital equalizer as well as all the on board digital processing effects are defeated 12 A B switch Used to switch between your modified program
3. 78 dBU Noise floor A weighted lt 100 dBFS 86 dBU AIO2 Noise floor unweighted lt 106 dBFS 86 dBU Noise floor A weighted lt 112 dBFS 92 dBU THD 0 007 typ 4 dBu 1 kHz unity gain Digital processing Converter 24 bit Delta Sigma 64 128 oversampling Sample rate 44 1 48 88 2 96 kHz Display Custom Backlit LCD for parameter control Memory Presets 100 memory locations 99 user programable Communications Midi In Out Thru on 5 pin DIN jacks D net Single XLR In and Out Power supply Mains voltage 115 V 60 Hz 230 V 50 Hz Power consumption 20 W typ Fuse T 1 A H Mains connector Standard IEC receptacle Dimensions HxWxD 19 in w x 10 5 d x 3 5 h 482 mm w x 267 d x 89 h Weight 5 1 lb 2 31 kg All specifications are subject to change without notice D3500_ownman_v1_2 indd 24 9 4 05 5 21 37 PM D3500_ownman_v1_2 indd 25 9 4 05 5 21 38 PM Samson Technologies Corp 575 Underhill Blvd P O Box 9031 Syosset NY 11791 9031 Phone 1 800 3 SAMSON 1 800 372 6766 Fax 516 364 3888 www samsontech com D3500_ownman_v1_2 indd 26 9 4 05 5 21 38 PM
4. in line device as an insert device in conjunction with mixer insert points or in an effects send return loop The illustra tions on pages 19 21 show each of these typical con figurations Choose the configuration that is best for your application and then begin by making the D3500 input connections using the XLR connectors on the rear panel 4 Next make the D3500 output connections using the XLR connectors on the rear panel to connect your power amplifier or active speakers 5 Plug in the supplied AC cord and connect it to any standard AC socket 6 Press the rear panel Power switch to turn on the D3500 Press the Filter Select switches in to activate the equalizer Note if you have the AI02 board installed the audio signal will be muted for approximately five seconds until the relay power on circuitry is activated at which time you ll hear a click and the audio signal will be unmuted Navigating the D3500 Control Before you move ahead into the many D3500 onboard effects you should become familiar with the front panel controls and the various parameters that they can set The D3500 front panel switches are set up in groups relat ed to the function or parts of the operating system they control Some switches are placed individually since they are dedicated to a single function and other switches are arranged in groups since their functionality is related The D3500 function switch sections are arranged
5. the FBM switch until you see the menu FB Hold The D3500 s Feedback management system uses HOLD time to keep a filter cut after the system identifies feedback Now you can select a Hold time of 0 10 This param eter affects only the Dynamic filters To access the Feedback Release Time parameter press the FBM switch until you see the menu FB Rel Now you can select a Release time of 0 10 If the feedback is temporary the D3500 will attempt to restore the fader back to the original position The Release time is the time the D3500 takes to return the fader back to the original level This parameter affects only the Dynamic filters Using the EQ section You can control any of the 30 bands of parametric eq man ually by using the Filter control knobs and the EQ func tion While using the EQ is possible to set the operational characteristics of the filter to any of four modes Bypass no filter at all Manual which lets you set a filter like an analog parametric equalizer When set to Dynamic mode the filter is floating and will reset itself to adjust to chang ing feedback problems Resonance for system and room acoustic problems the filters set automatically to remove feedback and stay set to that frequency Note You can page through the various parameters under the EQ section however you can only make edits to Gain Frequency and Bandwidth when the filter is set to the Manual 1 operating mode The EQ Switch H
6. use the Data Wheel to select Pgm Ch T R Press store Use the Data Wheel to select Pgm Ch OFF press store and the D3500 will not transmit or receive any system exclusive messages D3500_ownman_v1_2 indd 18 9 4 05 5 20 14 PM 19 System Configurations Using the D3500 with Active Speakers In this example the mixer s stereo output is connected to the D3500 s inputs Then the D3500 s outputs are connected to the inputs of each active self powered loudspeaker Using the D3500 with Passive Speakers In this example the mixer s stereo output is connected to the D3500 s inputs Then the D3500 s outputs are connected to the input of a 2 channel power amp Next the power amplifier s outputs are connected to the passive non powered loudspeakers D3500_ownman_v1_2 indd 19 9 4 05 5 20 35 PM System Configurations 20 Using the D3500 for Mains and Monitors Using the D3500 into Insert Points You can use the D3500 in your mixer s insert points if you want to equalize two mono channels individually in the mix In this example the D3500 s Channel 1 INPUT and OUTPUT are inserted on a bass guitar channel using a 1 4 inch TRS to 2 x 1 4 inch TS Y cable and the Channel 2 INPUT and OUTPUT are inserted on a keyboard channel using the same type of cable For more information on cable wiring see the D3500 Wiring Guide page 22 in this manual In this example an D3500 is used for both the main PA speakers run
7. Lisez avec attention toutes les consignes de s curit 4 Suivez les instructions du fabricant 5 Ne pas utiliser cet appareil pr s d une source liquide ou dans un lieu humide 6 Nettoyez l appareil uniquement avec un tissu humide 7 Veillez ne pas obstruer les fentes pr vues pour la ventilation de l appareil Installez l appareil selon les instructions du fabricant 8 Ne pas installer pr s d une source de chaleur radiateurs etc ou de tout qui pement susceptible de g n rer de la chaleur amplificateurs de puissance par exemple 9 Ne pas retirer la terre du cordon secteur ou de la prise murale Les fiches cana diennes avec polarisation avec une lame plus large ne doivent pas tre modi fi es Si votre prise murale ne correspond pas au mod le fourni consultez votre lectricien 10 Prot gez le cordon secteur contre tous les dommages possibles pincement tension torsion etc Veillez ce que le cordon secteur soit libre en particulier sa sortie du bo tier 11 D connectez l appareil du secteur en pr sence d orage ou lors de p riodes d inutilisation prolong es 12 Consultez un service de r paration qualifi pour tout dysfonctionnement dom mage sur le cordon secteur baisse de performances exposition la pluie pro jection liquide dans l appareil introduction d un objet dans le bo tier etc D3500_ownman_v1_2 indd 2 9 4 05 5 19 57 PM Copyright 2005 Sa
8. Sie keine Bel ftungs ffnungen Nehmen Sie den Einbau des Ger ts nur entsprechend den Anweisungen des Herstellers vor 8 Bauen Sie das Ger t nicht in der N he von W rmequellen wie Heizk rpern W rmeklappen fen oder anderen Ger ten inklusive Verst rkern ein die Hitze erzeugen 9 Setzen Sie die Sicherheitsfunktion des polarisierten oder geerdeten Steckers nicht au er Kraft Ein polarisierter Stecker hat zwei flache unterschiedlich breite Pole Ein geerdeter Stecker hat zwei flache Pole und einen dritten Erdungsstift Der breitere Pol oder der dritte Stift dient Ihrer Sicherheit Wenn der vorhandene Stecker nicht in Ihre Steckdose passt lassen Sie die veraltete Steckdose von einem Elektriker erset zen 10 Sch tzen Sie das Netzkabel dahingehend dass niemand dar ber laufen und es nicht geknickt werden kann Achten Sie hierbei besonders auf Netzstecker Mehrfachsteckdosen und den Kabelanschluss am Ger t 11 Ziehen Sie den Netzstecker des Ger ts bei Gewittern oder l ngeren Betriebspausen aus der Steckdose 12 berlassen Sie die Wartung qualifiziertem Fachpersonal Eine Wartung ist not wendig wenn das Ger t auf irgendeine Weise beispielsweise am Kabel oder Netzstecker besch digt wurde oder wenn Fl ssigkeiten oder Objekte in das Ger t gelangt sind es Regen oder Feuchtigkeit ausgesetzt war nicht mehr wie gewohnt betrieben werden kann oder fallen gelassen wurde WARNING To reduce the risk of fire or
9. and low pass filters will be displayed in the LCD window D3500_ownman_v1_2 indd 4 9 4 05 5 20 01 PM 5 A POWER SWITCH When set to the ON position the D3500 is powered up and ready for operation B MIDI IN DIN connector The D3500 receives standard or system exclusive MIDI data here C MIDI OUT DIN connector The D3500 transmits standard or system exclusive MIDI data here D MIDI THRU DIN connector The D3500 passes standard or system exclusive MIDI data here E I O Accessory Blank Panel Removable blanking panel accesses option bay for adding additional Analog to Digital or Digital Input Output boards F AC input fuseholder Connect the supplied heavy gauge 3 pin IEC power cable here G DNET Accessory Blank Panel Removable blanking panel accesses option bay for adding the DNET interface card for control multiple D class units Controls and Functions Rear Panel Layout H CH1 Balanced XLR jack input Electronically balanced XLR jack input Wiring is as follows pin 2 hot pin 3 cold and pin 1 ground I CH2 Balanced XLR jack input Electronically bal anced XLR jack input J CH1 Balanced XLR jack output Electronically balanced XLR jack output K CH2 Balanced XLR jack output K CH2 Balanced XLR jack output K Electronically balanced XLR jack output 23 LIMITER switch This switch is used to page through the LIMITER parameters When selected the am
10. as it reacts to any occurrence of feedback using the DYNAMIC filters Again when the DYNAMIC filter is engaged you will see that filter s ACTIVE LED light Don t be concerned if all the filters do not activate Since the D3500 is truly smart and knows what it is doing it will only use the number of filters necessary to do the job By fol lowing the simple procedure and without even tapping into the powerful parameters of the D3500 your system should be noticeably louder Filter Mode Chart O OFF 1 MANUAL 2 DYNAMIC 3 RESONANCE D3500 Quick start D3500_ownman_v1_2 indd 9 9 4 05 5 20 06 PM 10 Using the Filter Control Knobs The D3500 s front panel features a hardware control sec tion with encoder knobs that allow you to make quick real time adjustments to FREQUENCY BANDWIDTH and GAIN for any of the 30 filters You can adjust any filter that has been set by an internal preset using the Filter Control Knobs You can also operate a filter in MANUAL mode and use the Filter Control Knobs to quickly set the EQ band by hand and by ear Since each of these filter parameters can be set manually or by recalling a preset from the internal memory the parameters can change quickly so you ll need to know how the new filter parameters are set To handle this prob lem the D3500 s filter control knobs have LED light rings around the encoders which when lit indicate the position of the filter parameters This gives you a graphi
11. convenient data wheel it s possible to save your favorite equalization curves and recall them in the future In addition the powerful LOAD MASK allows you to recall certain effects or EQ curves from any preset independent ly so you can add pre set effects settings with real time changes The D3500 features standard MIDI implementation and Samson s D Net enabling device to device linking for cre ating larger audio systems for interfacing to a personal computer When linking the units you see the full power of the D class system For systems using many D class units the D3500 can be fitted with the DN1 D Net network card Samson s D Net is a high speed communication protocol for connected multiple D class units like the D2500 digi tal equalizer D1500 RTA or more D3500s In addition to being 10 times faster than MIDI the error rate is so close to zero it s difficult to measure All settings and parameters can be stored in any of the 99 preset locations providing instant recall of your favorite setups Like all D class mod els the D3500 features an advanced 32 bit point floating processor DSP interface to high quality converters with 24 bit audio resolution and sample rates up to 96kHz for pristine audio quality You can even upgrade your D class units to premium Analog to Digital and Digital to Analog I O Input Output converter boards keeping your D class system up to date with the best technology and sound far onto the fut
12. delay ing speaker arrays in large venue installations The D3500 s unique ENHANCER effect will help reduce the overall sys tem noise while at the same time sweeten up the high end of any speaker To set the over all low or high end frequency contour the D3500 features multi pole Hi pass and Low pass filters Speaker protection is handled with the D3500 s digital LIMITER The navigation buttons located in the center of the unit under Filter Select buttons along with the Data Wheel control the various parameters used to set up these pow erful effects Remember some of the effects may have several pages which are accessed by pressing through the effects switches Using the Feed Back Mode You can adjust the parameters of the automatic feedback filters in order to optimize the performance for your spe cific application by using the D3500 s Feedback Mode set up The D3500 let s you adjust the Sensitivity Release time and Hold time for the automatic filters Follow these steps to adjust the Feedback Mode D3500_ownman_v1_2 indd 12 9 4 05 5 20 10 PM 13 To access the Feedback Sensitivity parameter press the FBM switch until you see the menu FBM Sensitivity The Feedback Sensitivity is used to set the threshold that the D3500 uses to recognize feedback Now you can select a Sensitivity of 0 10 This parameter affects both the Resonance and Dynamic filters To access the Feedback Hold Time parameter press
13. equalization curves as well as all the parameters for the routing and the onboard effects that may have been used Loading a preset is a simple procedure which is accomplished with the follow ing easy steps Press the LOAD button and the LED will begin to flash indicating that the D3500 is ready to load one of the 99 memory locations Now you need to decide if you want to load the set up in the current memory location or if you want to choose a preset saved in a different memory location If you want to use the current location go on to the next step If you want to choose a new memory loca tion use the Data Wheel to scroll through the 99 pre set numbers until you reach the number you want to recall into memory Once you select the program number to load simply press the LOAD button again and your preset is loaded into memory Operating the D3500 D3500_ownman_v1_2 indd 16 9 4 05 5 20 13 PM 17 Operating the D3500 Loading Presets with the MASK function continued Note The Mask function is a Global parameter so it will stay active and affect all the presets you load until the Mask is disabled To eliminate the masked function press Load and select PGM 10 again Press and hold Store until the display reads Set Mask Press the Limiter button to select it yellow LED on Press Store once again Press Load and select PGM 11 press Load again Press Limiter and notice that the Limiter settings
14. is it 30 times faster than MIDI but both send and receive are covered using a single standard XLR cable To enable the D3500 to send and receive D Net data fol low these steps Press the MIDI switch a few times until the LCD reads Midi Use the Data Wheel to select D Net Press store D3500_ownman_v1_2 indd 17 9 4 05 5 20 13 PM 18 Operating the D3500 Now that you have enabled the D3500 for D Net as described in the previous section you can select addition al MIDI parameters that may be necessary for your exact application or system set up The D3500 s MIDI has three basic modes of operation Channel Omni and System Exclusive and Program The D3500 can operate in any of these three MIDI modes One of the most used MIDI modes is Channel MIDI which allows you to assign up to sixteen different devices to indi vidual MIDI channels 1 through 16 Selecting a MIDI Channel You can program the D3500 to receive MIDI messages on a specific MIDI channel by following the next step Press the MIDI switch until that LCD reads M Channel 1 Use the Data Wheel to select M Channel 1 16 Press store Selecting MIDI Omni mode You can program the D3500 to receive MIDI messages in Omni mode by following the next steps Press the MIDI switch until that LCD reads OMNI Use the Data Wheel to select Omni ON Press store Selecting MIDI System Exclusive Mode You can program the D3500 to receive or tr
15. of the art DSP and fil tering technology for precise tonal and feedback control Here are some of its main features The D3500 is a sophisticated digital equalizer com bined with an advanced and easy to use automatic feedback management system providing 30 bands of parametric filters For stereo PA systems the D3500 can operate with 15 filter bands per side or for mono operation like stage monitors you can use all 30 bands at once The D3500 offers three filter modes Resonance for reducing feedback due to room acoustic problems Dynamic for feedback problems caused when micro phone are moving around on stage and Manual for adjusting the parametric filters by hand using the Filter Control Knobs For temporary feedback problems like those caused by microphones moving on stage a unique AFR Auto Filter Release mode lets the EQ filters gradually restore themselves to the original levels once the feedback problem goes away thereby restoring not destroying your sound Advanced 32 bit floating point DSP with high end 24 Bit 96K sample rate Analog to Digital and Digital to Analog converters provides a pristine sound quality with low distortion and wide dynamic range The LEARN mode allows the D3500 to perform a sin gle button push automatic feedback reduction system that will automatically ring out your speaker system to remove feedback An onboard programmable Delay is included
16. the LCD win dow Next you can use the FREQUENCY knob to set the center frequency of the filter which can be adjust from 20 Hz 20 kHz When you adjust the knob you will see FREQUENCY and the associated value in the LCD window Now you can experiment by changing the filter BANDWIDTH from 1 60th of an octave to 10 octaves When you adjust the knob you will see BANDWIDTH and the associated value in the LCD window Note You can quickly return one or more selected filters back to a GAIN of 0 dB by pressing the RESET switch Be sure that the green LEDs on the Filter Select switches for the filters that you want to return to 0 dB are lit then press RESET D3500_ownman_v1_2 indd 10 9 4 05 5 20 07 PM 11 Operating the D3500 Using the LEARN Mode The following example is for reducing feedback in a typical PA system used by a band in a small to medium size club using the LEARN feature You will set ten of the filters to RESONANCE mode to remove problem frequencies that have to do with microphone and monitor placement as well as room acoustics Later on in this section you will find an example that explains how to set some additional filters to DYNAMIC mode to handle feedback problems that occur from artists moving around on stage with their microphones To get started with the LEARN function fol low these simple steps Press the LINK switch so that the green LED lights indicating the left and right channel
17. you hear is system hiss The Enhancer will recognize the noise and reduce it by cutting the associated EQ filters automatically Operating the D3500 Once the highs return the Enhance releases automatically Of course the D3500 lets you dial up just the right amount of Enhancer for your project so follow the steps below to activate the Enhancer Press the ENHANCE switch so that the yellow LED is lit Engage the effect by pressing the IN OUT switch until the yellow LED lights Now use the Data Wheel to select the correct Enhancer setting from 0 to 100 that s right for your application Setting an EQ Contour Using the HP LP The D3500 includes digital High pass and Low pass filters for creating quick equalization curve contours A Hi pass filter sometimes called a low cut filter is used to attenuate the frequencies below are certain point The HP filter pass es the highs but cuts the lows A Low pass filter some times referred to as a high cut filter is used to attenuate the frequencies above a certain frequency point The LP filter passed the lows but cuts the highs You can use the High and Low pass filters for a variety of applications Using the High pass filter can be especially useful in removing the low frequencies that can some times cause stage rumble If you have a lot of high fre quency system noise and hiss you can use the Low pass filter to roll off the high end of your system
18. 30 filters for a mono mix like on stage monitors or 2 times 15 bands for stereo PA applications The LEARN mode let s you press a single button and have the D3500 ring out your system automatically as if there were a professional monitor mix engineer inside moving all the knobs for you You just get a louder PA with less feedback The feedback filters work in three modes Resonance finds feedback problems inherent in the room then automatically sets Dynamic constantly scan the frequency range looking for feedback problems and Manual which are set by using the EQ control knobs Plus the D3500 s feedback filters are intelligent They know that often feedback occurs because performers move around on stage so the problems can be a tempo rary ones Other feedback systems that can destroy your sound because they just keep cutting more and more frequency until you re left with everything cut Thanks to the Auto Restore Filter technology the D3500 s filters are constantly monitoring the signal and will try to sneak back to the original positions so that the feedback reduc tion has a minimum effect on the sound of your mix For you tweakazoids out there the D3500 has 30 dedi cated switches which allow you to quickly access the filters that work together with the physical EQ control knobs located in the master section You may forget that that you are using a digital EQ simply press a filter button and grab a knob to tweak
19. Gate Threshold can be set from 100 dB to 0 dB To access the Release parameter press the GATE switch until you see the menu Gate Rel The Gate Release time can be set from 50 to 100 equivalent to 2 to 15 sec onds Using the DELAY The D3500 offers an on board Digital Delay for setting up delay clusters in large venue sound systems The Delay can be set from 0 to 85 milliseconds Setting the delay is a simple procedure which can be accomplished by follow ing the next few steps Press the DELAY switch so that the yellow LED is lit Engage the effect by pressing the IN OUT switch until the yellow LED lights Now use the Data Wheel to select the correct delay time for your application Using the ENHANCER The D3500 has a unique digital Enhancer which can help sweeten a sound system and at the same time reduce unwanted noise The D3500 s Enhancer uses several powerful algorithms to analyze the signal content and then decide how to enhance the signal based on that content If the D3500 Enhancer senses that there is music playing with good high frequency content it will slightly boost these frequencies creating sweet and airy top end response When the D3500 Enhancer sees that there is lit tle or no high frequency content it will slightly reduce the high frequency response of the system This can be espe cially useful since often when the high frequency content is very low or off the only thing
20. Use the Data Wheel to select Preset 00 and press LOAD Now select the first ten filters by pressing and holding the Channel 1 Filter Select Switch and then press the Channel 10 Filter Select Switch At this point you will notice that the green Selection LEDs for the filters 1 10 are lit This indicates that the filters are ready to be set up and engaged To set these filters to RESONANCE mode press the EQ switch until MODE is displayed in the main LCD Use the Data Wheel to select Mode 3 RESONANCE D3500_ownman_v1_2 indd 8 9 4 05 5 20 06 PM 9 Now select filters 11 through 15 by pressing and hold ing the Channel 11 Filter Select Switch and then press the Channel 15 Filter Select Switch At this point you will notice that the green Selection LEDs for the filters 11 15 are lit This indicates that the filters are ready to be set up and engaged To set these filters to DYNAMIC mode press the EQ switch until MODE is displayed in the main LCD Use the Data Wheel to select Mode 2 DYNAMIC Now you run your sound system as normal and try to manually ring out your system by raising the main volume just at the point of feedback You ll see the D3500 s front panel LEDs lighting as it responds to the feedback using the RESONANCE filters You will know when a filter is active when the filter s ACTIVE light goes on Now during your performance you ll see the D3500 s front panel LED lighting
21. When equal izing a monitor system you may use both the HP and LP filters to roll off the high and lows for a vocal eq contour Any good high and low pass filters will allow you to choose the cut off frequency and also the Order or slope at which the filter will attenuate The D3500 let s you set the frequency at which the HP or LP filters cut from and they will also let you choose slope of either 6 12 or 18 db per octave D3500_ownman_v1_2 indd 14 9 4 05 5 20 12 PM 15 The HP LP Switch Has Four Clicks Click Menu Function Value 1 Lowpass high Cut Filter 2 kHz 20 kHz 2 Lp Order Filter Slope 0 6 12 18 per Octave 3 Highpass low Cut Filter 20 Hz 200 Hz 4 HP Order Filter Slope 0 6 12 18 per Octave Press the HP LP switch so that the yellow LED is lit Engage the effect by pressing the IN OUT switch until the yellow LED lights To set the High pass filter press the HP LP switch until the LCD display reads High pass Now use the Data Wheel to set the frequency from 20 Hz to 200 Hz Press the HP LP switch again and you will see the menu to set filter Order or slope The menu will read HP Order Use the Data Wheel to choose a slope of either 6dB 12dB or 18 dB Note If you want to use the Low Pass filter but not the High Pass filter set the Low Pass filter slope to 0 dB To set the Low pass filter press the HP LP switch until
22. and the last program that has been loaded or stored into memory Controls and Functions Front Panel Layout 13 LEFT switch Assigns the Left CH1 digital equal izer to the physical controls 14 LINK switch Used to control the left and right CH1 and CH2 equalizer simultaneously with the one set of physical controls 15 RIGHT switch Assigns the Right CH1 equalizer to the physical controls 16 RESET SWITCH Used to reset the selected filters to 0 Gain 17 FBM Feedback Managment switch Used to set Sensitivity Hold and Release for the automatic feedback filter 18 EQ switch When engaged the amber LED will illu minate indicating that the EQ parameters are under control and displayed in the LCD window 19 GATE switch Used to access the automatic GATE control parameters When selected the amber LED will illuminate and the associate values for the digi tal noise gate will be displayed in the LCD window 20 DELAY switch When engaged the amber LED will illuminate indicating that the DELAY parameters are under control and displayed in the LCD window 21 ENHANCE switch When engaged the amber LED will illuminate indicating that the ENHANCE param eters are under control and displayed in the LCD window 22 HP LP switch LED switch used to access the HI PASS and LOW PASS control parameters When selected the amber LED will illuminate and the associated values for the high
23. ansmit MIDI System Exclusive messages Program the D3500 for System Exclusive operation by following these simple steps Press the MIDI switch until that LCD reads SysEx OFF to access the MIDI System Exclusive menu Now select one of the transmit and receive modes If you want the D3500 to transmit system exclusive mes sages use the Data Wheel to select Sys Ex TR Press store In order to set the D3500 to receive system exclusive messages use the Data Wheel to select SysEx Rc Press store If you want the D3500 to receive and transmit system exclusive messages use the Data Wheel to select SysEx T R Press store Use the Data Wheel to select SysEx OFF press store and the D3500 will not transmit or receive any system exclusive messages Selecting MIDI Program Change You can program the D3500 to receive or transmit MIDI Program messages Program the D3500 for MIDI Program Change operation by following these simple steps Press the MIDI switch until that LCD reads Pgm Ch to access the MIDI Program Change menu Now select one of the transmit and receive modes If you want the D3500 to transmit system exclusive mes sages use the Data Wheel to select Pgm Ch Tr Press store In order to set the D3500 to receive system exclusive messages use the Data Wheel to select Pgm Ch Rc Press store If you want the D3500 to receive and transmit system exclusive messages
24. as Four Clicks Click Menu Function Value 1 Mode Filter Mode 1 Manual 2 DYNAMIC 3 RESONANCE 2 Frequency Filter Center Freq 20 Hz 20 kHz 3 Bandwidth Filter Bandwidth 1 60th 10 Octaves 4 Gain Filter Gain 48 dB 16 dB The following example explains how to set a filter to a spe cific Frequency Bandwidth and Gain We ll set a 1 3 octave filter with 48 dB of cut at 250 Hz Press the LINK switch so that the green LED lights indi cating the left and right channels are linked together Operating the D3500 Select the active filters by pressing the Channel 1 Filter Select Switch At this point you will notice that the green Selection LED for filter 1 is lit on both channels This indicates that the filters are ready to be set up and engaged Press the EQ switch until the yellow LED is lit Be sure that the EQ IN switch is Illuminated Press the EQ switch a few times until it reads Mode Use the data wheel to select Mode 1 Manual Now use the FREQUENCY control knob and LCD display to adjust the filter center frequency to 250 Hz Next use the BANDWIDTH control knob and LCD dis play to adjust the filter bandwidth frequency 20 60 octave or 1 3 octave Now turn the GAIN control knob counter clockwise Now turn the GAIN control knob counter clockwise Now while watching the LCD display and adjusting the gain frequency to 48 dB Using the Inte
25. ber LED will illuminate and the LIMITER parameters will be displayed in the LCD window 24 IN OUT switch The LED switch is used to engage the FEEDBACK GATE DELAY ENHANCER and LIMITER effects When one of the aboves effects switch is selected for example FEEDBACK that effect is turned on when the IN OUT amber LED is illuminated 25 LEARN switch When selected the Automatic Feedback system will engage and the unit will automatically ring out the speaker system 26 GLOBAL switch When engaged the red LED will illuminate indicating access to the unit s GLOBAL parameters 27 MIDI switch This switch is used to page through the MIDI parameters When selected the red LED will illuminate and the MIDI parameters will be dis played in the LCD window 28 LOAD switch Used to load one of the 100 pro grams from the internal memory 29 STORE switch Used to store one of the 99 pro grams into the internal memory D3500_ownman_v1_2 indd 5 9 4 05 5 20 03 PM 6 SETTING UP THE D3500 Setting up your D3500 Graphic Equalizer is a simple pro cedure which takes only a few minutes 1 Remove all packing materials save them in case of need for future service and decide where the unit is to be physically placed it can be used free standing or mounted in a standard 19 rack 2 Make sure the power to all mixers and amplifiers in your audio system is off 3 The D3500 can be used either as an
26. cal repre sentation of the how the equalizer band would look on a traditional analog parametric eq It s easy to assign any filter to the encoder knobs by simply pressing any of the Filter Selection buttons Follow the simple steps below to set a filter to Manual and then use the Filter Control Knobs to adjust the band Press the BYPASS switch so that the LED is off indicat ing the D3500 s digital effects are engaged You will probably want to start with a default preset so press the LOAD switch The LED will flash indicating the D3500 is ready to load a preset Use the Data Wheel to select Preset 00 Note Preset 00 is a factory default set up that CANNOT be overwritten Operating the D3500 Press the LINK switch so that the green LED lights indicating the left and right channels are linked together Select the active filters by pressing the Channel 1 Filter Select Switch At this point you will notice that the green Selection LEDs for filter 1 is lit on both channels This indicates that the filters are ready to be set up and engaged To set these filters to MANUAL mode press the EQ switch until MODE is displayed in the main LCD Use the Data Wheel to select Mode 1 MANUAL Now simply move the GAIN knob and you ll see the ACTIVE LED for the selected filters light up indicating the filters are engaged You will also notice that GAIN and the associated value now appear in
27. d fully parametric equal izer with onboard loudspeaker processing effects Each of the 30 filters can be manually set and all the effects parameters can be adjusted and stored into memory However if you want to use the D3500 as a simple auto matic feedback management system you can First lets look at some basic concepts to employ that will help reduce the chance of feedback before you even power up the D3500 Microphone Positioning How to Reduce Feedback Feedback is the annoying howling and squealing that is heard when the microphone gets too close to the speaker and the volume is high You get feedback when the micro phone picks up the amplified signal from the speaker and then amplifies through the speaker again and then picks it up again and so on and so on In general it is always recommended that any LIVE mic a mic that s on is posi tioned behind the speaker enclosures This will give you the best level from your system before feedback One possible exception is when you are adjusting the sounds of the microphones since you want to listen in front of the speaker to hear properly To do this lower the PA system s main volume while setting the EQ and effects from in front of the speakers Once you have the sound you like move the microphones to behind the speakers and raise the Main volume In addition be aware of your microphone s pick up pattern For most live sound applications a uni directional or Cardioid microph
28. d to the right channel With the RIGHT switch selected on and the LINK switch off the D3500 controls will edit just the right channel filters and right channel parameters when accessing the various menus Controlling the Left Channel signal If you want to control the EQ and the effects for the left channel individually make sure the LINK switch is OFF Now press the LEFT switch to assign the hardware control surface to the signal connected to the left channel With the LEFT switch selected on and the LINK switch off the D3500 controls will edit just the left channel filters and left channel parameters when accessing the various menus Keep in mind that the LEFT or RIGHT switch determines which channel s parameters are displayed in the LCD Therefore even if the LINK is on you can still use the LEFT and RIGHT switches to select which sides parameters are displayed in the LCD This becomes important if you set the Left or Right channel to a different parameter and then link them For example it is possible to set the same filter setting for both sides using LINK then unlink and change the Gain of one filter on one side If you press the LINK again the hardware will control both sides however the GAIN will be offset You can see this by using the LEFT and RIGHT switches when LINK is on D3500_ownman_v1_2 indd 7 9 4 05 5 20 05 PM 8 D3500 Quick start Quick start Using the D3500 to Reduce Feedback The D3500 is a powerful 30 ban
29. de la unidad 11 Desconecte de la corriente este aparato durante las tormentas el ctricas o cuando no lo vaya a usar durante un periodo de tiempo largo 12 Dirija cualquier posible reparaci n solo al servicio t cnico oficial Deber hacer que su aparato sea reparado cuando est da ado de alguna forma como si el cable de corriente o el enchufe est n da ados o si se han derramado l quidos o se ha intro ducido alg n objeto dentro de la unidad si esta ha quedado expuesta a la lluvia o la humedad si no funciona normalmente o si ha ca do al suelo ATTENTION Pour viter tout risque d lectrocution ou d incendie ne pas exposer cet appareil la pluie ou l humidit Pour viter tout risque d lectrocution ne pas ter le couvercle ou le dos du bo tier Cet appareil ne contient aucune pi ce rem pla able par l utilisateur Confiez toutes les r parations un personnel qualifi Le signe avec un clair dans un triangle pr vient l utilisateur de la pr sence d une tension dangereuse et non isol e dans l appareil Cette tension constitue un risque d lectrocution Le signe avec un point d exclamation dans un triangle pr vient l utilisateur d instructions importantes relatives l utilisation et la maintenance du produit Consignes de s curit importantes 1 Veuillez lire toutes les instructions avant d utiliser l appareil 2 Conserver ces instructions pour toute lecture ult rieure 3
30. electric shock do not expose this unit to rain or moisture To reduce the hazard of electrical shock do not remove cover or back No user serviceable parts inside Please refer all servicing to qualified personnel The lightning flash with an arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanying the product Important Safety Instructions 1 Please read all instructions before operating the unit 2 Keep these instructions for future reference 3 Please heed all safety warnings 4 Follow manufacturers instructions 5 Do not use this unit near water or moisture 6 Clean only with a damp cloth 7 Do not block any of the ventilation openings Install in accordance with the manu facturers instructions 8 Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat 9 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
31. ettings Press and hold Store FBM EQ GATE DELAY ENHANCE HP LP LIMITER AND IN OUT will light Press Delay HP LP and Limiter and their respective LED s will go out Now when you load any other program you will retain your Delay HP LP and Limiter settings Only the Parameters not Masked will load from the second pro gram loaded Storing Programs in the D3500 The D3500 has 99 memory locations labeled 01 99 for storing user presets You can save the equalization curve as well as all the parameters for the routing and the onboard effects that may be active Saving the preset is a simple procedure which is accomplished with the follow ing easy steps Press the STORE button and the LED will begin to flash indicating that the D3500 is ready to store the current set up into one of the 99 memory locations Now you need to decide if you want to save the set up in the current memory location or if you want to choose a new memory location If you want to use the current location go on to the next step If you want to choose a new memory location use the Data Wheel to scroll through the 99 preset numbers until you reach the number you want to save under Once you select the program number to save under simply press the STORE button again and your set up is saved and can be easily recalled using the LOAD function Loading Programs in the D3500 You can load presets with stored
32. for time aligning speakers The D3500 offers programmable High and Low Pass Filters for setting contour curves or for removing low end stage rumble To help keep the over all system noise level low the D3500 includes a programmable Noise Gate with vari able threshold control An added layer of speaker protection is accomplished by using the D3500 s programmable brick wall Limiter brick wall Limiter brick wall The programmable Enhancer can be used to add extra highs or as a noise reduction system by lowering the high frequency bands when no high frequency content is present Equalization curves plus all digital effects can be stored or recalled using the 99 User Preset Locations Configure larger systems using multiple D class units which communicate over standard MIDI or with Samson s optional high speed D Net interface card Optional DI01 Digital interface card for connecting to AES EBU or S PDIF The D3500 takes advantage of the latest technology with upgradable Analog to Digital and Digital to Analog converters Electronically Balanced XLR Inputs and Outputs Standard 19 2 rack space design for easy integration into any traveling or fixed installation audio system Aluminum extruded front panel and steel chassis makes the D3500 eminently road worthy Three year extended warranty D3500_ownman_v1_2 indd 3 9 4 05 5 19 59 PM 4
33. from 100 dB to 0 dB To access the Release parameter press the LIMITER switch until you see the menu Lim Rel The LIMITER Release time can be set from 50 to 100 equivalent to 2 to 15 seconds Operating the D3500 D3500_ownman_v1_2 indd 15 9 4 05 5 20 12 PM 16 Using the Load MASK function The D3500 allows you to mask certain saved parameters when loading in a preset This is a powerful feature that allows you to create a new preset by merging different saved equalization curves with other saved effects set ups When you get deeper into the features of the D3500 there may be many parameters to set to create your final sound A hidden feature in the D3500 is the Set Mask function This allows you to load other programs and Mask Out retain certain parameters Example In your overall setup you have a delayed stack of speakers on the left side with a setting of 40mS You have your limiter set to 2dB to not overdrive your amps and your subs are being crossed over to a different amplifier So from 80Hz on down you set a High Pass filter so that the Bass is not passing through the D3500 to the delayed stack Lets say you want to load program 2 one hour into the show a slightly hotter EQ curve that you stored in mem ory location 2 before the show began for use when the room fills up You want to change the EQ curve but you do not want to load in the program 2 s Delay HP and Limiter s
34. from above have reset to their original values Using the A B Feature After you load a preset you may want to make some changes to the equalization curve or perhaps to one or more of the digital effects Once you make some changes you may want to compare the edit with the original pre set saved in memory You can compare the current set with the preset that is stored in memory by using the A B switch Try the A B function to compare and preset to an edit by following these steps Press the LOAD switch and select any preset then press LOAD again to recall the preset into memory Play some music through the D3500 Next press the EQ button Now select a filter using the Filter Select buttons Use the Filter Control Knobs to adjust the filter At this point you will notice that the green LED on the A B switch is lit indicating that there has been a change to the original preset Now press the A B switch again and the green LED will flash indicating that the D3500 has now returned all the EQ faders and effects parameters back to the positions that were saved in the presets You can continue to press the A B switch to toggle back and forth between the saved preset and the new sound If you like the new edited preset you can use the STORE function to save the new preset either under the current memory location or a new one MIDI and D Net For expanded system control the D3500 uses standard MIDI a
35. he passive non powered monitor loudspeakers D3500_ownman_v1_2 indd 21 9 4 05 5 21 19 PM 22 D3500 Wiring Guide D3500 Wiring Guide There are several ways to interface the D3500 depending on your exact monitoring set up Follow the cable diagrams below for connecting your monitor system XLR Insert Cable Balanced 1 4 to FEMALE XLR Cable Unbalanced XLR to 1 4 Cable Balanced MALE XLR to 1 4 Cable Unbalanced MALE XLR to RCA Cable Unbalanced 1 4 to FEMALE XLR Cable Unbalanced RCA to FEMALE XLR Cable Balanced XLR to XLR Cable D3500_ownman_v1_2 indd 22 9 4 05 5 21 31 PM 23 Installing the AI01 02 Analog Input Output 1 Open the top cover by removing the six screws shown in Figure 1 2 Remove the four screws of the blank panel and the panel itself 3 Thread the two ribbon wires through the slot Install the panel into the chassis using the four screws re moved in step 2 See Figure 2 4 If the AI01 or 02 is mounted into the upper chassis slot attach the end of the large gray ribbon con nector into the socket labeled JP2 on the D CLASS DSP MAIN printed circuit board If the AI01 or 02 is mounted into the lower chassis slot attach the large ribbon connector into the socket labeled JP1 There is a notch in the socket that must line up with the
36. ill turn off Using the Left Right and Link Control Switches Since the D3500 is a two channel unit you can use it as a stereo or dual mono equalizer if you are running two monitor mixes Depending on the operating mode you set up in the Global menu you may want to have the left and right channels operate together or individually The LEFT RIGHT and LINK switches will help you operate the D3500 easily and give you the control you need to quickly make changes and control either one or both sides The state of these switches will determine which of the left and right signals are affected by the hardware control surface and which channel s parameters are diplayed in the LCD Using the LINK switch If you want to set the D3500 so that the phyiscal hardware controls and all the parameter controls adjust both the Left and Right side press the LINK switch so that the green LED is lit Now when you operate any of the controls ei ther the EQ control knobs or the digital effects you will be making the same change on the left and right sides If you want to use the D3500 as a dual mono equalizer and control the Left and Right sides individually keep the LINK switch OFF so that the green LED is not lit Controlling the Right Channel signal If you want to control the EQ and the effects for the right channel individually make sure the LINK switch is OFF Now press the RIGHT switch to assign the hardware con trol surface to the signal connecte
37. lowing you to maximize the overall system level You can see the filters being set one by one by looking at each Filter s mode LED As a filter sets itself the ACTIVE LED will light up You can also watch the LED s around the FREQUENCY BANDWIDTH and GAIN control knobs change as the filter is setting Once the D3500 completes the filter scan the red LEARN LED will stop flashing letting you know that the LEARN function is completed In some situations all the filters may not set This is okay since the D3500 will only use what it needs to get the job done and is always intelligently managing the internal DSP resources in order to maximize system performance Now you can add some DYNAMIC filter to handle the prob lems caused by artists moving around the stage with active microphones Follow the next section to set the Dynamic filters D3500_ownman_v1_2 indd 11 9 4 05 5 20 08 PM 12 Adding Dynamic Filters If you have not set the RESONANCE filters to remove feedback problems that occur due to microphone and monitor placement as well as room acoustics it is a good idea to do so by following the previous section Using the LEARN Mode to set filters 1 10 Next select the filters number 11 15 by pressing and holding the channel 11 Filter Select Switch and then press the channel 15 Filter Select Switch At this point you will notice that the green Selection LED for the fil ters 11 15 are lit This i
38. ms that occur from artists moving around on stage with their microphones When the filter is set to DYNAMIC mode it will search for feedback and then lock on that frequency until the feedback problem goes away If the filter set to DYNAMIC senses that the feed back problem is no longer present it will begin to search for new feedback problems So by setting some filters to Resonance and some to Dynamic you can easily handle feedback problems from speaker and mic placement as well as from presenters and performers moving around with live mics Simply follow these basic steps and start getting a louder mix without feedback Using standard XLR cables connect the output of your mixer to the D3500 s rear panel XLR INPUT connectors Now run another set of XLR cables and plug the D3500 s rear panel XLR OUTPUT s to your power amp or active speaker inputs Note If you are using any other signal processors like a graphic equalizer or compressor put the D3500 after them in the signal path Power up your system as normal Press the D3500 s LINK switch so that the green LED lights indicating the left and right channels are linked together Press the BYPASS switch so that the LED is off indicating the D3500 s digital processing effects are engaged You ll probably want to start with a default preset so press the LOAD switch The LED will flash indicating the D3500 is ready to load a preset
39. mson Technologies Corp Printed May 2005 v0 1 Samson Technologies Corp 575 Underhill Blvd P O Box 9031 Syosset NY 11791 9031 Phone 1 800 3 SAMSON 1 800 372 6766 Fax 516 364 3888 www samsontech com Table of Contents Introduction 2 D3500 Features 3 Controls and Functions 4 Front Panel Layout 4 Rear Panel Layout 5 Setting up the D3500 6 Navigating the D3500 Control 6 Selecting the Input 6 Using the Left Right and Link Control Switches 7 Using the LINK switch 7 D3500 Quick start 8 Using the D3500 to Reduce Feedback 8 Operating the D3500 10 15 Using the Filter Control Knobs 10 Using the LEARN Mode 11 Adding Dynamic Filters 12 Using the Processing Switches 12 Using the Feed Back Mode 12 Using the EQ section 13 Using the Internal Noise GATE 13 Using the DELAY 14 Using the ENHANCER 14 Using the LIMITER for Basic Speaker Protection 14 Setting an EQ Contour Using the HP LP 15 Storing Programs in the D3500 16 Loading Programs in the D3500 16 Loading Presets with the MASK function 16 Using the A B Feature 17 MIDI and D Net 17 Setting the D3500 to Transmit and Receive MIDI 17 Selecting a MIDI Channel 18 System Configurations 19 Using the D3500 with Active Speakers 19 Using the D3500 with Passive Speakers 19 Using the D3500 in Insert Points 20 Using the D3500 for Mains and Monitors 20 Using Two D3500 s for Mains and Mo
40. ndicates that the filters are ready to be set up and engaged To set these filters to DYNAMIC mode press the EQ switch until MODE is displayed in the main LCD Use the Data Wheel to select Mode 2 DYNAMIC Now you can see how the filters work by taking a micro phone and performing a walk test around the stage When you step in front of a monitor and it feeds back you will see the ACTIVE LED of one of the Filters set to DYNAMIC light indicating that filter is setting itself As you continue to walk and get more feedback the other filters will set themselves Note You can clear out any filter or number of filters and have it start search for the feedback frequency again by pressing the Filter Select switch and the press ing the RESET switch Operating the D3500 Using the Processing Switches In addition to being a great sounding clinically precise digital equalizer the D3500 provides a host of useful digi tal effects which have been designed to make an audio engineer s job easier and project sound better The MODE switch lets you set the operating parameter for the auto matic feedback filters The EQ switch assigns the selected digital eq filter to the LCD screen so you can view a numer ic measurement of the Frequency Bandwidth and Gain The GATE effect allows you to eliminate annoying buzzes and hums The DELAY effect is perfect for phase aligning speakers systems using multi transducers and for
41. ning a mono mix and for the monitor mix also in mono For the main PA the mixer s MONO output is connected to the D3500 s Channel 1 input Then the D3500 s output is connected to the input of the right main PA active self powered loudspeaker The left main PA speaker is connected by daisy chaining from the right For the monitor mix the mixer s AUX output is connected to the D3500 s Channel 2 input The D3500 s Channel 2 output is connected to the input of the monitor power amplifier operating in bridge mode Finally the power amplifier s outputs are connected to the passive non powered monitor loud speakers See the owners manual for your specific power amplifier for the proper bridge mode operation D3500_ownman_v1_2 indd 20 9 4 05 5 21 00 PM 21 System Configurations Using Two D3500 s for Mains and Monitors In this example two D3500 s are used for the stereo main and for the 2 channel monitor mix The mixer s left and right outputs are connected to the first D3500 s inputs for the main PA speakers Then the outputs are connected to the inputs of the power amplifier connected to passive loudspeakers For the monitor mix the mixer s AUX1 output is connected to the second D3500 s channel 1 input and AUX2 output is connected to the channel 2 input Then the second D3500 s channel outputs are connected to the inputs of the 2 channel power amp Finally the power amplifiers outputs are connected to t
42. nitors 21 D3500 Wiring Guide 22 Installing the Optional AI 02 Analog Input Output 23 Specifications 24 D3500_ownman_v1_2 indd 1 9 4 05 5 19 57 PM 2 Congratulations You just purchased one of the most innovative and useful audio tools available to sound engineers today the D3500 Dual 15 Band Parametric EQ Feedback Management System The D3500 is an advanced parametric equalizer featuring cutting edge DSP and analog to digital conversion technology togeth er with a simple to use traditional analog user interface The D3500 s robust 2 rack space steel and aluminum extruded chassis design is not only road worthy but it also provides a large front panel layout which is extreme ly easy to use and already familiar to audio engineers Thanks to the powerful DSP engine and clever software the D3500 is capable of producing EQ curves with more accurate and precise filters far exceeding the capabilities of even the best analog equalizers What you won t get is the accumulating additive hiss noise that you get from an analog equalizer when you add a lot of gain at high frequency bands And with the high end 24 Bit AD and DA converters and 96K sampling rate you ll enjoy pristine audio quality The beauty of the D3500 is that while it is a sophisti cated advanced featured parametric equalizer it can also work as a one button automatic feedback manage ment system For feedback management the D3500 can employ up to
43. on the front panel as follows First is the BYPASS switch that enables you to turn the equalizer and all effects on or off Next is the A B switch that lets you compare the actual modified program to the last program loaded or stored Then you will find a group of switches including LEFT LINK and RIGHT which are used to assign the D3500 s hardware RIGHT which are used to assign the D3500 s hardware RIGHT controls to operate the Left Right or Left and Right EQ channels RESET is the next switch and it allows you quickly clear any selected filters returning them to the 0dB Gain position The next section is where you will find the D3500 s powerful onboard digital loudspeaker processing effects which are controlled by the FBM EQ GATE DELAY ENHANCE HP LP LIMITER and IN OUT switches GLOBAL gives you access to the overall system settings and MIDI lets you set up the device to device communications including Samson Audio s high speed D Net protocol Finally in order to save and retrieve your favorite settings the D3500 s LOAD and STORE switches allow you to access the 100 on board presets The following sections of this manual will detail each of the switches and their associ ated parameters Instead of going from left to right we ll switch up the order a bit for a more logical flow through the system You should know this Some switches are capable of accessing more than one parameter so as you press the switch repeatedl
44. one with great rear rejec tion is the best solution for getting the most gain before feedback Looking for a great dynamic mic with above aver age feedback rejection Try a Samson Q7 Speaker Placement Whenever possible it is a good idea to raise the speakers above the heads of the listening audience Any good loud speaker like the Samson dB500 Expedition or Resound model enclosures feature a standard 1 3 8 pole mount receptacle which is compatible with speaker stands from a variety of manufacturers including the Samson TA100 Position your speakers for the best audience coverage but be aware of where your live mics will be during the course of your performance or presentation and position the speakers in front of the live stage area Using the D3500 for Automatic Feedback Managemet The following example is for reducing feedback in a typi cal PA system used by a band in a small to medium size club using the D3500 First you ll set ten of the filters to RESONANCE mode to remove problem frequencies that occur due to microphone and monitor placement as well as those caused by room acoustics When the filters are set to Resonance the D3500 will detect a feedback problem then set automatically the filter to the feedback frequency and then lock on that frequency until it is reset or a new program is preset loaded After setting the RESONANCE fil ter you ll set some additional filters to DYNAMIC mode to handle feedback proble
45. or third prong is provided for your safety When the provided plug does not fit your outlet consult an electri cian for replacement of the obsolete outlet 10 Protect the power cord from being walked on and pinched particularly at plugs convenience receptacles and at the point at which they exit from the unit 11 Unplug this unit during lightning storms or when unused for long periods of time 12 Refer all servicing to qualified personnel Servicing is required when the unit has been damaged in any way such as power supply cord or plug damage or if liquid has been spilled or objects have fallen into the unit the unit has been exposed to rain or moisture does not operate normally or has been dropped PRECAUCION Para reducir el riesgo de incendios o descargas no permita que este aparato quede expuesto a la lluvia o la humedad Para reducir el riesgo de descarga el ctrica nunca quite la tapa ni el chasis Dentro del aparato no hay piezas susceptibles de ser reparadas por el usuario Dirija cualquier reparaci n al servicio t cnico oficial El s mbolo del rel mpago dentro del tri ngulo equil tero pretende advertir al usuario de la presencia de voltajes peligrosos no aislados dentro de la carcasa del producto que pueden ser de la magnitud suficiente como para constituir un riesgo de descarga el c trica a las personas El s mbolo de exclamaci n dentro del tri ngulo equil tero quiere advertirle de la existencia de importan
46. rnal Noise GATE The D3500 digital effect section includes a digital noise gate that can be very useful in eliminating the system hums and buzzes that may occur especially when you are using your system in different venues A noise gate is a powerful dynamics processor that works like an automatic mute Simply put when the desired signal is present the gate is open and the sound can be heard When the signal is soft like when the music stops and all that s left are the hums buzzes and system noise floor the gate is closed The D3500 GATE has variable control over Threshold and Release time Threshold is the level you set at which the noise gate will close mute the sound You want to set a level in between the noise floor and the normal operating level of your program Release Time is the amount of time the D3500 s Gate takes to reduce the signal to off after the signal falls below the Threshold level The Noise Gate Switch Has Two Clicks Click Menu Function Value 1 Gate Rel Release Time 0 100 2 to 15 sec 2 Gate Th Threshold Level 0 100 dB To operate the D3500 digital noise GATE follow these simple steps Press the GATE switch so that the yellow LED is lit Now engage the effect by pressing the IN OUT switch until the yellow LED lights D3500_ownman_v1_2 indd 13 9 4 05 5 20 11 PM 14 To access the Threshold parameter press the GATE switch until you see the menu Gate Th The
47. s are linked together Press the BYPASS switch so that the LED is off indicat ing the D3500 s digital effects are engaged To recall a default preset p To recall a default preset p ress the LOAD switch The LED will flash indicating the D3500 is ready to load a preset Use the Data Wheel to select Preset 00 Press the LOAD switch again The LED will stop flash ing indicating the preset has been loaded Now select the first ten filters by pressing and hold ing the Channel 1 Filter Select Switch and then press the Channel 10 Filter Select Switch At this point you will notice that the green Selection LED for the filters 1 10 are lit This indicates that the filters are ready to be set up and engaged To set these filters to RESONANCE mode press the EQ switch until MODE is displayed in the main LCD Use the Data Wheel to select Mode 3 RESONANCE Next adjust your microphones to the maximum vol ume just before feedback It s actually a good idea to let a little bit of feedback ring out and then turn the level down just below the feedback Now press the LEARN switch Next turn the data wheel to select Start yes press start and watch and listen to the D3500 ring out the monitors The red LED in the LEARN switch will flash indicating that the D3500 is scanning the frequency range and adjust ing the filters automatically to reduce feedback al
48. s well as Samson s D Net communication protocols to transmit and receive digital control information to and from additional D class units other MIDI devices or per sonal computers You can use standard MIDI cables for IN OUT and THRU to configure a system using traditional MIDI protocol If higher speed communication is needed you can install the optional DN1 D Net interface cards and use standard XLR cables to configure a high speed bi directional data hook up using Samson D Net protocol The MIDI and D Net control parameters are configured by accessing the various menus with the MIDI switch located on the D3500 s front panel When you press the MIDI switch several times you will be scrolling though the various MIDI setup menu items including MIDI enable Channel Omni System Exclusive and Program The following section details each of these modes and their associated parameters Setting the D3500 to Transmit and Receive MIDI To enable the D3500 to send and receive MIDI data follow these steps Press the MIDI switch until that LCD reads MIDI OFF Use the Data Wheel to select MIDI ON Press store Setting the D3500 to Transmit and Receive Data Using D Net In larger systems the D3500 and other D class units can be configured with an optional DN1 D Net interface card for high speed communications D Net follows a similar pro tocol as MIDI only at a much higher data rate The beauty of the D net interface is not only
49. tab on the bottom of the connector See Figure 3 5 Carefully push down on the connector and it will engage the locking tabs on either side 6 Attach the end of the small ribbon cable connector to the jack labeled CN5 and or CN7 if installing a second Analog I O on the D CLASS POWER printed circuit board Note that the two notches on the con nector must line up with the notches on the jack Push the plug down into place See Figure 3 7 Slide the top cover back on and replace the six screws Installing the Optional AI 02 Analog Input Output THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES CLASS B OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS 1 THIS DEVICE MUST NOT CAUSE HARMFUL INTERFERENCE AND 2 THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION Figure 1 Figure 1 Figure 2 Figure 2 Figure 3 Figure 3 D3500_ownman_v1_2 indd 23 9 4 05 5 21 36 PM 24 Specifications inputs Type electronically balanced Connector XLR Impedance 22 k at 1 kHz Max input level 22 dBu AIO1 0 dBFS 14dBu Max level AIO2 0 dBFS 20dBu Max level Outputs Type electronically balanced Connector XLR Impedance 100 Ohms at 1 kHz Max output level 22 dBu System Specifications Frequency Response 10 Hz to 35 kHz 1dB 96 kHz sampling rate Signal to noise ratio AIO1 Noise floor unweighted lt 92 dBFS
50. tes instrucciones de manejo y mantenimiento reparaciones en los documentos que se adjuntan con este aparato Instrucciones importantes de seguridad 1 Lea todo este manual de instrucciones antes de comenzar a usar la unidad 2 Conserve estas instrucciones para cualquier consulta en el futuro 3 Cumpla con todo lo indicado en las precauciones de seguridad 4 Observe y siga todas las instrucciones del fabricante 5 Nunca utilice este aparato cerca del agua o en lugares h medos 6 Limpie este aparato solo con un trapo suave y ligeramente humedecido 7 No bloquee ninguna de las aberturas de ventilaci n Instale este aparato de acu erdo a las instrucciones del fabricante 8 No instale este aparato cerca de fuentes de calor como radiadores calentadores hornos u otros aparatos incluyendo amplificadores que produzcan calor 9 No anule el sistema de seguridad del enchufe de tipo polarizado o con toma de tierra Un enchufe polarizado tiene dos bornes uno m s ancho que el otro Uno con toma de tierra tiene dos bornes normales y un tercero para la conexi n a tierra El borne ancho o el tercero se incluyen como medida de seguridad Cuando el enchufe no encaje en su salida de corriente llame a un electricista para que le cambie su salida anticuada 10 Evite que el cable de corriente quede en una posici n en la que pueda ser pisado o aplastado especialmente en los enchufes recept culos y en el punto en el que salen
51. the LCD display reads Low pass Now use the Data Wheel to set the frequency from 20 Hz to 20 kHz Press the HP LP switch again and you will see the menu to set filter Order or slope The menu will read LP Order Use the Data Wheel to choose a slope of either 6dB 12dB or 18 dB Note If you want to use the High Pass filter but not the LowPass filter set the High Pass filter slope to 0 dB Using the LIMITER for Basic Speaker Protection In order to help you protect your speaker system the D3500 employs a digital Limiter When engaged the digital Limiter will prevent signals from reaching outputs levels over a desired point The D3500 s Limiter has a vari able Threshold level which is the point the limiter circuit begins to attenuate the system The Limiter also has a variable Release time which is the time the limiter circuit takes to return the signal to the original level The LIMITER Switch Has Two Clicks Click Menu Function Value 1 Lim Thr Threshold 0 to 100 dB 2 Lim Rel Release Time 50 to 100 equiv alent to 2 to 15 sec onds To operate the D3500 digital LIMITER follow these simple steps Press the LIMITER switch so that the yellow LED is lit Now engage the effect by pressing the IN OUT switch until the yellow LED lights To access the Threshold parameter press the LIMITER switch until you see the menu Lim Th The LIMITER Threshold can be set
52. the equalizer In addition to being a simple to use feedback manage ment system and digital equalizer the D3500 is packed with all the goodies including HIGH amp LOW PASS FILTER NOISE GATE LIMITER ENHANCER and DELAY All these digital effects are programmable and their associated parameters can be stored and recalled as part of the 100 available user pre sets The HIGH and LOW PASS FILTERS allow you to quickly apply an EQ contour for rolling off the high and low end frequencies for example when equalizing vocal monitors The D3500 s NOISE GATE allows you to set a threshold level so you can mute any system hums and buzzes dur ing silent sections keeping your system super clean With the D3500 s LIMITER you can control the level being sent to your power amplifiers to help you insure good protec Introduction tion for your loudspeakers The onboard ENHANCER will actually add high frequency to the system when there is program material at those frequencies adding extra sparkle to the mix The ENHANCER will also automatically turn down the high frequencies when there is no high fre quency signal content eliminating system noise and hiss making the D3500 a very effective noise reduction system In addition the D3500 also offers on onboard DELAY for time aligning speakers All settings and parameters for the equalizer and digital effects can be stored in 100 user pre set locations Using the large easy to read LCD dis play and
53. ure The D3500 is perfectly at home in the studio or on the road The fact is you would use the D3500 equalizer for its precise filtering and superb audio quality alone but you get the power of all the features and then some expected from a high quality digital equalizer Whether you are a recordist or a live sound engineer you ll get a better sound using the D3500 Digital Equalizer In this manual you ll find a detailed description of the features of the D3500 as well as a guided tour through the front and rear panels step by step instructions for using the unit suggested applications for use with a patch bay a Real Time Analyzer RTA or for ringing out monitor systems You ll also find a warranty card enclosed please don t forget to fill it out and mail it so that you can receive online technical support and so we can send you updated information about other Samson products in the future Also be sure to check out our website http www sam sontech com for complete information about our full product line With proper care and adequate air circulation your D3500 will operate trouble free for many years We recommend you record your serial number in the space provided below for future reference Serial number _________________ Date of purchase _______________ D3500_ownman_v1_2 indd 2 9 4 05 5 19 58 PM 3 D3500 Features The Samson D3500 Digital Parametric Equalizer Feedback Management System utilizes state
54. y you will page through the available parameters These include the FBM GATE HP LP Limiter GLOBAL and MIDI For example the FMB switch has three pages to click though the param eters Sensitivity Feedback Hold Feedback Release You can change the parameters of any of these functions by using the large Data Wheel located by the main LCD dis play GLOBAL The GLOBAL control allows you to set up the various sys tem parameters including the input option and mode The Global Switch Has Two Clicks Click Menu Function Value Click Menu Function Value Click 1 Inp Input Opt 1 Opt 2 2 Md Mode Stereo Dual Selecting the Input The D3500 accepts inputs from any of the installed I O boards including the optional DIO1 Digital I O or AIO2 premium analog to digital I O board The D3500 auto matically senses if a board is installed in an option slot To access the input follow these steps Setting up the D3500 D3500_ownman_v1_2 indd 6 9 4 05 5 20 04 PM 7 Setting up the D3500 Press the GLOBAL control switch once or twice until you see the Inp Use the Data Wheel to select OPT 1 or OPT 2 NOTE Once you make an edit to the Global set up the red GLOBAL LED will flash indicating that a change has been made to the original set up You will also see that the red STORE LED is illuminated To keep the new changes press the STORE button and you will exit the GLOBAL mode and both the STORE and GLOBAL LED s w
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