Velodyne Acoustics Digital Drive Subwoofer User's Manual
Contents
1. ATTENTION Risque d electrocution Ne pas ouvrir Attention Afin d eviter tout risque d lectrocution ne pas enlever le boitier ou partie arri re de l enceinte Aucune pi ce ne doit tre manipul e par l utilisateur Pour tout entretien vous r f rer un personnel de service qualifi Le symbol de l clair avec la fl che sert avertir l utilisateur de la pr sence d un voltage dangereux non isol dans l enceinte du produit d une magnitude pouvant constituer un risque d electrocution de personnes Le symbol du point d exclamation sert a avertir l utilisateur que d importants conseils de fonctionnement et de maintenance entretien sont fournis avec l enceinte d extr amp mes graves 1 Lire le mode d emploi Tous les conseils de s curit et de fonctionnement doivent tre lus avant de mettre en marche l enceinte 2 Garder le mode d emploi II est conseill de conserver les conseils de s curit et de fonctionnement pour un eventuel usage futur 3 Avertissements Il est important de se conformer a tous les conseils de fonctionnement concernant l enceinte et toutes les instructions inscrites sur l enceinte 4 Suivre les conseils Tous les conseils d utilisation et de fonctionnement doivent tre suivis la r gle 5 Eau et humidit Ne pas utiliser l enceinte pr s d une source d eau par exemple pr s de la baignoire d une bassine2. 120Hz 3dB Detachable 6 foot AC power cord Four rubber 14 20 threaded support feet aluminum with rubber inserts on 15 and 18 models On screen controls Graphic or Parametric Equalizer controls for room EQ Adjustable 15Hz 199Hz low pass crossover Multiple staggered low pass crossovers 6dB octave initial to 48dB octave ultimate Adjustable 15Hz 35Hz subsonic filter Multiple staggered subsonic filters 12dB octave initial to 48dB octave ultimate Variable volume control Adjustable phase control 0 15 30 45 60 75 90 105 120 135 150 165 180 Selectable polarity Theater Music selection indicator Signal sensing auto turn on off defeatable 6presets for customized listening modes and EQ defeat Velodyne Digital Drive User s Manual Page 2 Switchable Velodyne logo indicator Night Mode Maximum volume setting Save settings indicator Remote Control The Velodyne Digital Drive infrared remote control allows you to set up adjust and reset your subwoofer when connected to a television or a video monitor You will also use your remote to activate preset listening values set the subwoofer s volume up or down mute the subwoofer or set a night operational mode Take care not to lose or misplace your remote control as adjustments to the subwoofer with the exception of volume control can only be done using th
3. highlighted in reverse video indicates your current location on the screen Holding down the LEFT or RIGHT arrow key causes the remote to repeat and you can then rapidly move through fields to arrive at the desired one You should be able to perform most of the setup process by using the four arrow keys and the SELECT button Following is an overview of the screens you will be using to set up your Velodyne Digital Drive subwoofer Velodyne DIGITAL TRIVE PRESS ENU TU ENTER Sc UP NUJE SUBKUUFER VOLUN 38 PRESET ACTION ADUENTLRE COPYRIGHT ZEHS VELODYNE ACOUSTICS INC Figure 3 Introductory Screen See Figure 3 This the Introductory screen Notice that as you change settings such as preset volume etc this is shown on this screen You enter setup mode by pressing MENU and entering the code 12345 Upon successful entry of this code the system takes you to the EQ Setup screen as shown in Figure 4 Velodyne Digital Drive User s Manual Page 8 SYSTEM RESPONSE EXIT SAVE 15 20 25 32 40 50 63 60 100 125 160 200 z VOL 23 I dde ddl KE 12 We NAU KEYS Figure 4 EQ Setup Screen The EQ Setup screen includes a system response sweep window and a graphic equalizer You use these settings to equalize your room The graphic equalizer features 8 bands each of which can be used at its current frequency or can be infinitely adjusted to the frequency and Q you desire REMEMBER Use the
4. 25 Troubleshooting And Service RE EE Ee 25 Protection and Circuitry uses kenn 26 Digital Drive Software Updates ana an 26 Appendix A RS 232 Serial Overview and Commande pp 27 Table of Figures Figure 1 Velodyne Digital Drive Remote Control pp 3 Figure 2 Digital Drive Rear Panel Connections pp 4 Figure 3 Introductory Screen ste ein 8 Figure 4 EO Setup Screen PN 9 Figure 5 System Settings Screen ale 10 Velodyne Digital Drive User s Manual Page iv Congratulations Congratulations on your purchase of a Velodyne Digital Drive subwoofer system Digital Drive technology is the result of years of research and development combining advanced Digital Signal Processing DSP software equalizer audio filter digital amplifier digital servo control and high pressure loudspeaker technologies The result is new state of the art in subwoofer design that takes our traditionally accurate low frequency sound reproduction to new levels of precision eliminates room anomalies and resolves many tradeoffs that encumber lesser subwoofer designs This exceptional subwoofer will provide you with years of unparalleled listening pleasure Enjoy Caution Please observe the following instructions to insure safe and proper system operation Warning To prevent fire or shock hazard do not expose this equipment to rain or moisture To avoid electrical shock do not open speaker enclosure or amplifier chassis cover Please observe a
5. Afin d viter tout choc lectrique introduire la lame la plus large de la fiche dans la borne correspondante de la prise et pousser jusqu au fond 13 Nettoyage Pour le nettoyage de l enceinte suivre scrupuleusement les instructions du fabricant 14 P riodes de non utilisation Le cordon lectrique de l enceinte doit rester d branch si l enceinte reste inutilis e pendant une longue p riode de temps 15 Infiltration d objet ou de liquide Faire attention ce ou aucun objet ne tombe et ce ou aucun liquide ne soit vers sur l enceinte 16 Dommages n cessitant r paration L enceinte ne doit tre r par e que par du personnel qualifi lorsque le cordon lectrique ou la prise ont t endommag s Des objets sont tomb s ou du liquide a t vers sur l enceinte L enceinte a t expos e la pluie L enceinte ne semble pas fonctionner normalement ou indique un changement de performance e L enceinte est tomb e par terre ou a t endommag e 17 Entretien L utilisateur ne doit pas tenter de r parer l enceinte au del de ce qui est d crit dans le mode d emploi 18 Surcharge Ne pas surcharger les prises murales les rallonges ou les prises femelles encastr es de commodit On risquerait un incendie ou un choc lectrique 19 Pi ces de rechange Lorsque le remplacement d une pi ce s av re n cessaire s assurer que le technicien utilise la pi ce sp cifi e par
6. With this optional receiver plugged in you will be able to utilize the functions of the remote to control power volume and mute functions Place the infrared receiver within direct line of sight from your usual listening position VOLUME UP DOWN Press the black UP pushbutton to incrementally raise your subwoofer s system volume press the black DOWN pushbutton to incrementally lower your subwoofer s system volume Note the use of these buttons during software updates SPEAKER LEVEL INPUT RIGHT LEFT This speaker level connector allows either banana plug jack or exposed wire terminal connections Installation Step by Step To ensure a quick and flawless installation of your Velodyne Digital Drive unit follow these numbered setup instructions in their exact order Subwoofer Cable Connections Make all necessary cable connections between the applicable subwoofer connector port and your particular home electronics equipment in the following order 1 Insert the detachable AC power cord into the 117V 60Hz 15A power interface port on the rear panel of your subwoofer Plug the male end of the cord into a convenient wall outlet Velodyne Digital Drive User s Manual Page 5 2 Provide signal to your subwoofer through one or more of the following connections refer to your receiver processor owner s manual for available inputs to the subwoofer a LFE INPUT RCA the RED jack at location 11 on Figure 2 This is the most common in
7. fields If your television produces distorted colors after installing your subwoofer simply increase the distance between your television and the subwoofer until normal color and operation is returned Important Note Turn your subwoofer off before moving it Velodyne Digital Drive User s Manual Page 1 Package Contents Your Velodyne Digital Drive Subwoofer consists of the following components Digital Drive subwoofer Power cord Remote control Digital Drive Accessory Kit consisting of Calibrated precision microphone Microphone windscreen cover Tabletop microphone stand Microphone stand adapter 25 foot video cable 25 foot audio cable 20 foot XLR microphone cable Product Features and Controls Subwoofer Prominent features of your new Digital Drive Subwoofer include Cones and motor sizes 10 8 piston diameter or 12 9 7 piston diameter cone with 310 oz magnet or 15 12 7 piston diameter or 18 15 2 piston diameter cone with 380 oz magnet Built in 1250 watt RMS 3 000 watt peak power high efficiency Class D amplifier Tandem 3 voice coils Multi layer resin laminate cone High excursion rubber surround Gain compression anti clipping circuit to prevent over excursion and amp clipping Fixed 80Hz high pass crossover RCA output Balanced XLR input Line level RCA inputs and outputs Speaker level inputs Variable volume control Frequency response of 20Hz
8. le fabriquant ou une pi ce poss dant les m mes caract ristiques que la pi ce d origine Les substitutions non autoris es peuvent provoquer des incendies ou des chocs lectriques ou pr senter d autres dangers 20 Contr le de s curit Apr s toute intervention technique sur ce produit neuf ou r par demander au technicien de proc der un contr le de s curit pour v rifier qu il est en bon tat de marche zoo Toute autre r paration doit tre r f r e a du personnel qualifi Velodyne Digital Drive User s Manual Page iii Table of Contents eelef Le 1 Prior to Installation see 1 Package Contents ieena nase re 2 Product Features and Come EE 2 ee 2 ee ee ee Ee 3 Remote Control Button 2 ses else 3 Digital Drive Accessory Ki een 4 Installation Aa 4 Subwoofer Controls and Ports pp 4 Installation Step By Step u una 5 Subwoofer Cable Connections Anal 5 A Word About Subwoofer Outputs a ee 6 A Word About Interconnect Cables pp 7 A Word About Connecting More Than One Subwoofer pp 7 Onscreen Programming and Setup pp 7 Onscreen Programming and Setup Overview Nt 8 Onscreen Programming and Setup Step By Step Nt 11 A Word About Room Placement pp 14 Eeselen Areas 23 Runtim Oe men air ER Rn nee 23 About Room Eguallzalan Seiser ee Rear Sarnen 24 Distortion BI RE e EE 24 The Velodyne Digital Drive Servo Control Solution ENEE 24 Care Of Your Digital Drive Subwoofer pp
9. operate at extremely low frequencies which are primarily omni directional that is you can t usually tell where they are coming from As a general rule placing the sub s in the corner s of a room will result in the maximum number of peaks and minimum number of valleys in the response Remember the goal is to find the best location s that result in the minimum number and severity of valleys The worst location for a subwoofer is typically far away from any walls and close to the center of your room Avoid these locations when possible When using a pair of Velodyne subwoofers in stereo it is preferable to place each subwoofer by the satellite of the same channel If moving your satellites is an option they too can contribute to peaks and valleys and should be likewise placed through experimentation 10 Now you can begin moving your subwoofer around the room to find the best placement position You need to find the best tradeoff between appearance and room response Be sure the room is in the configuration that it will be in when you typically listen e g doors closed curtains open or closed etc As you move the subwoofer refer to the SYSTEM RESPONSE graph to minimize peaks and especially valleys in the response curve As an example you might find a location that smoothes the graph as follows see next page Velodyne Digital Drive User s Manual Page 14 JELODYNE DIGITAL DRIVE NEXT SYSTEM RESPONSE EXIT SAUE 5 2
10. 24 x 7 20 m tte Vus gt gt D Le FJD D Lin cri rm m CS cS m E e vm Lu Lad Fr me OC EE l R NAVIGATION AUTO ON OFF MODE ACTIVE HOLD e NIGHT MODE VOLUME 30 PRESS TEST Velodyne Digital Drive User s Manual Page 22 By pressing the SELECT button you tell the system to save your settings and return to the introduction screen Selecting NO returns without saving i e whatever previous settings were in effect will be used and CANCEL keeps you in setup mode When the unit saves settings you will see the video flicker and you may hear a slight tick in your main speakers This is normal behavior NOTE The Digital Drive subwoofer stores all of its settings in internal Flash memory This memory persists even if the woofer is turned off loses power or undergoes a programming update so you need not worry about losing your customized settings Restoring Defaults There is a feature in Digital Drive that allows you to restore the factory defaults On the Main Screen simply press the 8 9 and 0 buttons in sequence If you are successful the unit will flicker the video and then restore the main screen You will have a good idea that the restore defaults was successful because the system volume will be restored to 30 You can verify the restore of the defaults by pressing 12345 and viewing the System Response screen On this screen all the EQs should be returned to their original positi
11. 8 25 32 40 58 63 99 100 125 168 200 VOL 11 ee EREE bh avs NAU gt KEYS NOTE The subwoofer should be turned off when physically moving the unit NOTE If you are constrained in room location positions don t worry By following the setup steps below Digital Drive gives you lots of flexibility to make the most out of any room positioning 11 Now that the room location has been chosen turn off the subwoofer and the rest of your system and permanently route the wiring and reconnect to your subwoofer 12 Reactive the subwoofer and your system and ensure that the system works as before 13 Use the MENU button to get to the EQ setup screen after entering the 12345 code and then position the cursor over the NEXT field on the EQ setup screen Press SELECT and observe the Sysem Settings screen as shown on the next page Velodyne Digital Drive User s Manual Page 15 5 6 mm 1 2 3 4 LOW PASS AUER FREQ 20 SA 60 sa LOW PASS ER SLOPE 24 24 24 24 24 SUBSONIC FREQUENCY EL Ike IE SUBSONIC SLOPE 24 24 2 24 PHASE 00 00 aa a Le 29 23 2 8 al 15 24 d POLARITY VOLUME CL So 25 2 CI NA cp CH H NA 2 9 8 0 3 0 0 0 0 0 0 8 NA D a WB BI Bl USE gt KEYS FOR NAVIGATION AUTO ON OFF MODE ACTIVE HOLD KEYS FOR FAST NAU NIGHT MODE VOLUME 38 PRESS TEST KEY FOR GRAPH SCREEN COR LEUEL N THERTER MUSIC 1 8 You are now ready to adjust the crossover subsonic filter
12. CHT FFNEN Aus Vorsicht Zur Vermeidung von Gefahr durch elektrischen Schlag Deckel oder R ckwand nicht abnehmen Produkt enth lt keine Anwenderteile Reparatur und Wartung nur von qualifiziertem Fachpersonal vornehmen lassen Das Blitzsymbol dient als Hinweis auf unisolierte gef hrliche Spannungen innerhalb des Geh uses deren Werte eine Ber hrungsgefahr f r den Menschen darstellen k nnen Das Symbol mit dem Ausrufungszeichen dient als Hinweis auf wichtige in den Unterlagen des Subwoofers enthaltene Bedienungs und Wartungsvorschriften 1 2 3 4 5 10 11 12 13 14 15 16 17 18 19 20 Anleitungen lesen Alle Sicherheits und Bedienungsanleitungen vor Inbetriebnahme des Subwoofers aufmerksam durchlesen Anleitungen aufbewahren Die Sicherheits und Bedienungsanleitungen zur sp teren Bezugnahme aufbewahren Warnungen beachten Alle Warnungen am Subwoofer und in der Bedienungsanleitung unbedingt beachten Anleitungen befolgen Alle Bedienungs und Gebrauchsanleitungen genau befolgen Wasser und Feuchtigkeit Subwoofer nicht in der N he von Wasser aufstellen d h neben einer Badewanne Sp le Waschmaschine in einem feuchten Keller in der N he des Swimmingpools o Rollwagen und St nder Subwoofer nur mit einem vom Hersteller empfohlenen Rollwagen oder St nder benutzen Wand oder Deckenbefestigung Subwoofer nur den Herstellerempfehlungen gem an
13. Fidelity December 2003 Not only was the little Velodyne the best small sub I ve ever used it was one of the very best subs I ve used John Potis SoundStage April 2002 Velodyne Acoustics Inc 345 Digital Drive Morgan Hill CA 95037 408 465 2800 voice 408 779 9227 fax 408 779 9208 service fax www velodyne com Service E mail service velodyne com Product E mail help velodyne com Technical E mail techhelp velodyne com Printed on recycled paper 63 DD RevD 12DEC03
14. For example notice that preset one raises the level by 3dB at 35Hz this is to accommodate action adventure movie content Theater Music indicator This setting allows you to choose between a theatrical subwoofer a musical subwoofer or somewhere in between The musical setting represents maximum gain Velodyne Digital Drive User s Manual Page 21 from the digital servo and thus the least amount of distortion possible from the subwoofer The theatrical setting relaxes the servo a bit to allow a bit more distortion to enter the playback making an overall louder and more impressive sub for explosions and other theatrical content The scale is 1 for theater least amount of servo gain and 8 for music most amount of servo gain You will note that presets 1 4 are shipped from the factory with predetermined settings preset 5 s contour is set at 0 level from the factory and customizable by the user i e flat and preset 6 defeats all the EQs to demonstrate the effect the equalization of the subwoofer has on room response 24 As a final thought on matching your Digital Drive subwoofer to your room don t forget the objective listening test That is make sure the unit sounds good to you Often you may want to add a bit more bass than what would normally be considered flat even after you remove the major peaks and valleys to achieve a flat frequency response This is quite normal because human hearing ro
15. KEYS FOR FAST NAU 5 15 24 4 D o See Figure 5 System Settings Screen All six presets contain the following fields Low Pass Crossover Frequency and Slope Adjust the upper limit of your subwoofer s frequency response Select a crossover setting in increments of 1 between 15Hz and 199Hz and slope at 6 12 18 24 30 36 42 and 48 dB octave Subsonic Filter Frequency and Slope Set your subwoofer s subsonic filter low frequency limit in increments of 1 between 15Hz 35Hz and slope at 6 12 18 24 and 48 dB octave Phase Set the phase delay of the subwoofer s output signal 0 to 180 degrees adjustable in 15 degree increments Polarity Set your subwoofer s polarity by toggling between positive or negative This reverses the phase 180 degrees So setting the phase at 0 and polarity to is identical to setting the phase at 180 and polarity to Volume Set your subwoofer s volume as offset from the setup volume in increments of 1 between 0 99 Contour Frequency This allows you to set a frequency to boost or cut the signal to your subwoofer in response to specific types of source material These have been preset at the factory according to the presets above but any or all can be customized to taste Contour Level This indicates the amount of boost or cut at the frequency specified in the contour frequency Again this has been preset at the factory but can be ad
16. RIGHT and LEFT directional arrow buttons that surround SELECT to move through the fields of the setup screen and change settings by using the UP and DOWN arrow keys By navigating the cursor to the NEXT field and pressing SELECT the following screen appears as shown in Figure 5 next page From this screen the crossover subsonic filter phase polarity theater music volume and other settings can be set as well as specifics for each preset if desired Your DD unit comes with 6 presets four of which are preprogrammed at the factory The Setup setting is used to initially set the crossovers slopes phase polarity and volume for allpresets Then each preset can be individually adjusted if desired The presets are as follows they are also labeled on the remote Action Adventure Movies Pop Rock Jazz Classical Custom off from the factory or flat EQ Defeat DARON Velodyne Digital Drive User s Manual Page 9 AUTO ON OF NIGHT MODE VOLUME 4 3 PRESS TEST KEY FOR GRAPH SCREEN VELODYNE DIGITAL DRIVE Bu ee SETTINGS EXIT SAUE PRESETS SWP 1 2 3 5 6 LOW PASS XOUER FREQ BA om 80 ga sd 88 8 LOW PASS KOUER SLOPE 24 24 24 24 24 24 i Gu 15 24 DH 5 SUBSONIC FREQUENCY 15 SUBSONIC SLOPE 24 _ PHASE POLARITY VOLUME 1 99 25 Z CONTOUR FREQUENCY NA 4345 el CONTOUR LEVEL MA 2 0 0 0 3 0 KE al THEATER MUSIC 1 8 NA Ol 03 06 08 al USE KEYS FOR NAUTOATION F MODE ACTIVE HOLD
17. Velodyne Digital Drive User s Manual IMPORTANT SAFETY INSTRUCTIONS CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN Caution To reduce the risk of electric shock do not remove cover or back No user serviceable parts inside Refer servicing to qualified service personnel The lighting flash with arrowhead symbol is intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons The exclamation point symbol is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanying the subwoofer Du D 10 11 12 13 14 15 16 17 18 19 20 Read Instructions All safety and operating instructions should be read before the subwoofer is operated Retain Instructions The safety and operating instructions should be retained for future reference Heed Warnings All warnings on the subwoofer and in the operating instructions should be adhered to Follow Instructions All operating and use instructions should be followed Water and Moisture The subwoofer should not be used near water for example near a bathtub washbowl kitchen sink laundry tub in a wet basement near a swimming pool or the like Carts and Stands The subwoofer should be used only with a cart or stand reco
18. Y 15 15 15 15 15 15 SUBSONIC SLOPE 24 24 24 24 24 24 PHASE J i3 m 68 D Ba POLARITY VOLUNE 1 99 zm E 20 e 20 2 CONTOUR FREQUENCY NA 53 33 28 CONTOUR LEVEL NA 2 0 8 0 30 0 0 0 THEATER NUSIC 1 8 NA OL 63 86 DD DI USE KEYS FOR NAVIGATION AUTO ON OFF MODE ACTIVE HOLD gt KEYS FOR FAST NAU NIGHT MODE VOLUME 4 30 PRESS TEST KEY FOR GRAPH SCREEN A CD M noe 3 SRaARSo SEN Features of each preset are Volume or from SYS This setting deviates the preset s volume from the established system volume of the subwoofer So if you found during setup that 7 was a good setup volume for the subwoofer then preset one would increase the sub s volume to 10 since it is set as such This is shown above Using the VOL or VOL keys on the remote affects the system volume and the preset volume is adjusted in lock step with the system volume Crossover subsonic filter phase and polarity settings Normally these will not change from preset to preset However it may be that you are using different satellites for different listening modes and wish to set these settings individually for a specific preset Note that the setup values cascade to the individual values for the presets but you can change all the individual values if desired Contour frequency and level These act as an extra EQ that can be used to manipulate the frequency contour of your subwoofer when this particular preset is invoked
19. al setting However some satellites are only flat to 120Hz or even higher Remember that the higher the subwoofer is crossed over to match the satellite crossover settings the more likely it is to become directional that is you can tell where the bass is coming from Again consult your processor and speakers owner s manuals for more information 4 Select the source on your receiver processor that the DD subwoofer audio output is connected to Input should be configured for stereo 5 Set the video input where you connected the video output as the active TV image The introductory screen with the Velodyne logo and Velodyne Digital Drive should now appear on your TV screen as follows UI M12 YeIOQyne DIGITAL DRIVE PRESS MENJ TO ENTER SETUF ODE SUBKOJFER VOLUME 30 PRESET 1 ACTION ADVENTURE COPYRIGHT 2603 VELODYNE ACOUSTICS INC 6 Press MENU and enter 12345 to enter the EQ setup screen as follows Velodyne Digital Drive User s Manual Page 11 01 2 IL PRESS MENU TO ENTER SETUP MODE ENTER 12345 OR PRESS RESET 1234 PRESET 1 ACTION ADVENTURE COPYRIGHT 2083 VELODYNE ACOUSTICS INC Upon pressing 5 you should see the following screen VELODYNE DIGITAL DRIVE SYSTEM RESPONSE EXIT 15 28 25 32 48 50 63 80 108 125 160 200 6 Beil a TEN ea Zul Velodyne Digital Drive User s Manual Page 12 VOL 30 T JE NAU KEYS 7 Use the DD remote con
20. another upstream Digital Drive subwoofer See Appendix A for an explanation of the use of the serial port available commands and their formats RS 232 OUT Use this port to communicate with a second daisy chained Digital Drive subwoofer Also the 12V trigger feature requires a 12V trigger signal polarity irrelevant across pins 7 and 9 of this port S Video This connects to your S Video compatible TV NOTE Only connect to a single video output at a time LFE INPUT This XLR input jack receives the balanced LFE signal from your receiver or processor MIC INPUT This XLR input jack is for your XLR microphone cable EQ OUTPUT VIDEO LEFT RIGHT Connect the audio video cable from your accessory kit to these jacks yellow plug to VIDEO connects to an available video input on your processor or TV white plug to LEFT and red plug to RIGHT these connect to an available L R input on your receiver or processor such as AUX NOTE Only connect to a single video output i e composite or S Video at a time THRU These RCA connectors are for sharing the same signal that goes into your subwoofer with a second daisy chained subwoofer RCA input comes out of the THRU jack OUTPUT These RCA connectors incorporate the use of an 80Hz 6 dB octave slope high pass crossover INPUT LFE This RCA input jack is for line level connection REMOTE SENSOR This connection allows for hook up of the optional remote control receiver
21. at corresponds to 25Hz and use the up or down arrow keys to slide the EQ up or down An example of this is shown on the next page 19 Continue this process until the system response graph shows a 3dB response across the bass frequencies that is up to about 120Hz Note that this does not necessarily mean a ruler flat response 3dB is typical for an optimized response curve NOTE Phase and polarity may be useful in eliminating particularly stubborn peaks and valleys Phase is in effect a short delay in the creation of the signal and adjusting phase can change the dynamics of standing waves and black holes in the room Sometimes it may be useful to adjust the phase if there is a particularly difficult peak or valley to eliminate and or your room placement options are limited Velodyne Digital Drive User s Manual Page 18 5 2 25 32 40 50 63 80 100 125 168 200 i 4 LL a 1 BE TTT An equalized room is shown below VELODYNE DIGITAL DRIVE NEXT SYSTEM RESPONSE EXTT SAUE 15 2 25 32 40 50 63 88 100 125 160 200 ST aa SEL PARAMETRIC Velodyne Digital Drive User s Manual Page 19 NOTE The following steps use the parametric equalizer to achieve room equalization If you do not wish to use the parametric EQ feature skip to step 23 20 To use the parametric EQ feature position the cursor over the EQ and press the SELECT button The values for that particular EQ appear on the right hand s
22. corresponding audio input Consult your receiver processor and or TV owner s manual for more information NOTE Make sure the audio output goes into your AUDIO system not your TV The subwoofer will generate test tones via the EQ Audio output jacks that are used to match the subwoofer to your satellites and to correct for room anomalies In this case treat the subwoofer EQ audio output as you would a CD player or other audio device to be played through your receiver or processor Velodyne Digital Drive User s Manual Page 6 5 Insertthe XLR microphone cable s 3 pin male plug into the MIC INPUT jack location 7 on Figure 2 on the back panel of the subwoofer For DD 15 and DD 18 units a microphone jack is also located on the front of the unit for convenience 6 Slide the microphone male connector end first down through the open circular sleeve of the tabletop microphone stand Position this assembly at a desired listening position from your subwoofer NOTE The Digital Drive Accessory Kit includes a microphone stand adapter 1 2 27 thread for use with professional mounting stands Be sure to first remove the inner thread piece 3 8 16 before using 7 Connect the XLR microphone cable s female jack end with the male connector end of the microphone 8 Sheath the microphone pickup with the foam windscreen cover as a protection against dirt and airborne contaminants A Word About Interconnect Cables When installing your ne
23. d Liquid Entry Care should be taken so that objects do not fall and liquids are not spilled onto the enclosure Damage Requiring Service The subwoofer should be serviced by qualified service personnel when a The power supply cord or plug has been damaged b Objects have fallen or liquid has been spilled into the subwoofer c The subwoofer has been exposed to rain d The subwoofer does not appear to operate normally or exhibits a marked change in performance e The subwoofer has been dropped or damaged Servicing The user should not attempt to service the subwoofer beyond what is described in the operating instructions Overloading Do not overload wall outlets extension cords or integral convenience receptacles as this can result in a risk of fire or electric shock Replacement parts When replacement parts are required be sure the service technician has used replacement parts specified by the manufacturer or have the same characteristics as the original part Unauthorized substitutions may result in fire electric shock or other hazards Safety Check Upon completion of any service or service of repairs to this product ask the service technician toperform safety checks to determine that the product is in proper operating condition All other servicing should be referred to qualified service personnel Velodyne Digital Drive User s Manual Page i WICHTIGE SICHERHEITSHINWEISE VORSICHT GEF HRLICHE SPANNUNG A NI
24. de lavage d un vier de cuisine d un bac lavage dans un sous seul mouill pr s d une piscine 6 Pieds et Supports N utiliser que des pieds et supports recommand s par le fabricant 7 Assemblage mural ou au plafond Se conformer uniquement aux instructions du fabricant pour fixer l enceinte sur un mur ou sur un plafond 8 Ventilation Il est important de placer l enceinte de telle sorte qu elle ne g ne pas sa propre ventilation Par exemple ne pas placer l enceinte sur un lit un canap sur la moquette ou sur toute surface similaire qui bloque les ouvertures de ventilation ne pas poser l enceinte dans une meuble encastr ou ferm telle qu une biblioth que ou un meuble qui emp che l air de circuler par les ouvertures de ventilation de l enceinte 9 Chaleur Placer l enceinte loin de toute source de chaleur tels que radiateurs compteurs thermiques fours ou autres enceintes d gageant de la chaleur 10 Sources d lectricit Ne brancher l enceinte que dans une prise du type d crit dans le mode d emploi ou comme indiqu par le fabricant 11 Protection du cordon lectrique Les cordons lectriques doivent tre fix s pour viter que toute personne ne marche dessus et que rien ne puisse tre plac sur ou contre eux faire tout particuli rement attention aux cordons branch s dans des prises lectriques des r ceptacles et leurs points de sorties de l enceinte 12 Attention
25. der Wand oder Decke befestigen Bel ftung Subwoofer so aufstellen da die erforderliche Bel ftung nicht behindert wird D h Subwoofer nicht auf einer weichen Oberfl che wie einem Bett Sofa Teppich o aufstellen die die Bel ftungs ffnungen blockieren kann Subwoofer gleichfalls nicht in einem Regal oder Schrank unterbringen worin die Luftzufuhr behindert wird W rme Subwoofer nicht in der N he von W rmequellen wie Heizk rpern W rmespeichern fen oder anderen w rmeerzeugenden Subwoofern aufstellen Netzanschlu Subwoofer nur an eine der in der Bedienungsanleitung beschriebenen oder auf dem Subwoofer angegebenen Stromquellen anschlie en Netzkabelschutz Netzkabel so verlegen da nicht daraufgetreten wird oder sie durch darauf oder dagegengestellte Gegenst nde eingeklemmt werden k nnen Die Anschlu stellen des Netzkabels an Steckdosen und am Subwoofer dabei besonders beachten Vorsicht Zur Vermeidung von Gefahr durch elektrischen Schlag sicherstellen da der Schutzkontakt des Steckers vollst ndig in die Steckdose eingef hrt ist Reinigung Subwoofer nur den Herstellerempfehlungen gem reinigen Betriebsfreie Zeitr ume Netzkabel des Subwoofers aus der Steckdose ziehen wenn er ber einen l ngeren Zeitraum nicht benutzt wird Besch digungen durch Gegenst nde oder Fl ssigkeiten Es ist darauf zu achten da keine Gegenst nde auf das Geh use fallen oder Fl ssigkeiten darauf versch ttet we
26. e possible black hole of response In general you are looking for a frequency response that is 3dB at all frequencies it is highly doubtful that your ear can tell a response that is any better than this The response will always roll off at the low end according to the settings of the subsonic filter and there should be no dip or peak at the crossover frequency with the satellites While the goal is perfectly flat response this may not be possible in the higher frequencies of the subwoofer s response due to peaks or valleys introduced by the satellites Distortion in Loudspeakers Nonlinear distortion is a problem that plagues all speakers This particular type of distortion is a common problem in subwoofers which must move large amounts of air to produce adequate levels of deep bass Nonlinear distortion is defined as any form of distortion that moves energy from one portion of the audio frequency spectrum to another When a single tone is applied to a nonlinear system the result is harmonic distortion in which some of the energy leaves the system at multiples of the original frequency When multiple tones are applied intermodulation tones are produced usually as simple combinations of the input frequencies Generally 3 distortion is considered a reasonable amount for speakers This means that 3 of the total energy leaving the speaker is at frequencies other than the intended input signal Most subwoofers on the market today howe
27. e daisy chain connection ONLY allows the woofers to communicate basic run time commands such as volume and preset You will want to set up and equalize each sub independently and optimize it for the room before daisy chaining the subs together Onscreen Programming and Setup BEFORE YOU BEGIN Once the installation has been completed you can use your subwoofer without performing ANY of the setup steps below Simply use the remote to set the volume and select the preset that most closely matches your listening material and enjoy However to reap the maximum benefits of Digital Drive technology read on Velodyne Digital Drive User s Manual Page 7 Onscreen Programming and Setup Overview You are now ready to set up and adjust the onscreen audio settings of your Digital Drive subwoofer This section provides an overview of the setup process You will be doing all setup functions with the buttons of your Velodyne supplied remote control and seeing the results on your TV screen Words in all uppercase letters in the setup instructions e g SELECT MENU etc identify the specific remote button to be pressed or selected or the field on the screen you should be paying attentionto Remem ber to point the remote control at the subwoofer not your TV Use the RIGHT and LEFT directional arrow buttons that surround SELECT to move through the fields of the setup screen and change settings by using the UP and DOWN arrow keys A screen field
28. e remote NOTE Two 1 5V AA batteries are required and included for operation of the remote control External remote eyes may be ordered from either Velodyne or your local Velodyne audio equipment dealer Remote Control Buttons A brief description of each button on the remote control follows e PWR Causes woofer to stand by if in Active standby mode Numeric keypad Used to enter an unlock code to enter SETUP mode e SET Increases or decreases a value ina specified field e LIGHT Turns the subwoofer s front panel Velodyne logo light on or off e NIGHT Limits the output of the subwoofer and illuminates the logo s amber underlining to signify that the subwoofer is in night mode e VOL To raise or lower the volume of your subwoofer e MUTE Mutes your subwoofer e EXIT To exit SETUP mode The unit will ask if you want to save settings before exiting SELECT To toggle field values RESET Restores an entered value to its previous value MENU Enters SETUP mode from the introductory screen PRESETS To access the five preset and one EQ defeat listening modes Preset by Velodyne they are user adjustable Or LC he e 5 5 JO 1 00 ceee i Figure 1 Velodyne Digital Drive Remote Control Velodyne Digital Drive User s Manual Page 3 Digital Drive Accessory Kit The Velodyne Digital Drive Accessory Kit contains the following six components Calibrated precis
29. f needed Phase is in effect a short delay in the reproduction of the audio signal The polarity reverses the phase i e 180 shift Adjusting phase can change the dynamics of standing waves and black holes in the room Sometimes it may be useful to adjust the phase if there is a particularly difficult peak or valley to eliminate and or your room placement options are limited Phase and polarity are also important tools to match your subwoofer to your main speakers You will often see a dip or peak in the crossover frequency between your subwoofer and main speakers Rather than correcting this dip with an EQ try adjusting the phase and polarity settings It is very common for the main speakers to interact with the subwoofer to diminish or accent frequencies near the crossover point since this is the point where both the subwoofer and the speakers are playing the same audio information Don t be afraid to experiment to find the perfect match between your subwoofer and main speakers NOTE The following step shows using the graphic equalizer using fixed frequencies and Q to equalize the room 18 Next return to the EQ setup screen and adjust the graphical EQs to eliminate peaks and valleys from the room response Use the right and left arrow keys to position the cursor over the EQ you wish to adjust If you see a peak in the response at say 25Hz this would be evident in the SYSTEM RESPONSE graph simply navigate the cursor to the EQ th
30. f the software available for download If this version is higher than the version in your unit you may want to upgrade the software To upgrade the software you will need an IBM compatible PC with an available RS 232 9 pin serial port and a male to female Mouse Extension serial cable This cable is available from any computer store your local Velodyne dealer or directly from Velodyne Next proceed to the Velodyne web site and click on the link to download the software Upon download run the software and it will instruct you on completing the update process Thank you for purchasing a Velodyne Velodyne Digital Drive User s Manual Page 26 APPENDIX A RS 232 Serial Overview and Commands Introduction This document outlines Velodyne s Digital Drive DD RS 232 protocol specification This protocol indicates how Velodyne 1812 and Digital Drive products receive run time commands from devices such as Creston Universal Remote Controls Com Port Setup Use standard communications settings Baud Rate 9600 Data Bits 8 Parity None Stop Bits 1 DD IN and OUT Port Pin Configuration DD serial ports use a standard configuration that allows direct connection to aPC viaa FEMALE to MALE serial cable It uses only 3 pins Transmit Receive Ground The pin configurations are IN Pin 2 Transmit Pin 3 Receive Pin 5 Ground OUT Pin 2 Receive Pin 3 Transmit Pin 5 Ground Runtime Command Format 0 e Header Charac
31. ge audio signal for input when using the digital built in crossover Some processors receivers have a subwoofer out jack that is internally filtered and designed to be used with a conventional amplifier and speaker In some rare cases combining both an external crossover and the one internal to the subwoofer may result in low output and increased noise In these installations you may need to bypass the internal crossover in either the processor or Velodyne subwoofer In some installations simply setting one crossover to a higher frequency such as 120Hz will restore maximum performance To bypass the subwoofer s internal crossover when the unit is being fed a low pass signal from another crossover refer to the SETUP instructions at step 14 NOTE If not using an external crossover you should use the built in crossover for optimal performance 4 Connect the audio video cable between your subwoofer EQ OUTPUT VIDEO LEFT RIGHT yellow white and red respectively and your electronics receiver processor TV etc Insert the color coded cable plugs into the correct EQ OUTPUT receptacle the yellow plug into the VIDEO jack the white plug into the LEFT jack and the red plug into the RIGHT jack The opposite ends of this cable should be connected to your receiver processor to an available audio input e g AUX The yellow VIDEO cable goes to an available composite video input e g aux and the white red AUDIO L amp R cables go to a
32. ibits a marked change in performance The unit has been exposed to water Some part of the cabinet or circuitry is physically damaged PONS Protection Circuitry Your new subwoofer is equipped with special protection circuitry to provide maximum performance with greatest reliability The unit is protected against 1 Overdriving the speaker or amplifier 2 Overheating the amplifier 3 Excessive drop in power line voltage The first type of protection circuitry that prevents overdriving of the speaker or amplifier operates constantly without being audible under most situations In some extreme situations sustained high output levels such as pro sound usage the unit may shut down momentarily This indicates operation of the thermal or under voltage protection circuitry If this should happen you should reduce the volume setting or shut the unit off until normal operating conditions return You may also want to plug the unit into a different wall outlet as dropping power line voltage will be most noticeable under strenuous conditions Digital Drive Software Updates At the heart of Digital Drive functionality is the customized software From time to time Velodyne will publish updates to the Digital Drive software To determine if your unit is a candidate for a software upgrade observe the software version number in the upper left corner of the Main Screen e g V1 2 Then visit www velodyne com ddupdate and observe the version number o
33. ide ofthe screen The following screen is shown VELODYNE DIGITAL DRIVE NEXT SYSTEM RESPONSE EXIT SAUE 3 im Eeer oS VA 15 29 25 32 48 58 63 80 100 125 160 200 11 h BE JOL II 21 To manipulate a parametric EQ you can now use the LEFT and RIGHT arrow keys to move the frequency up and down and the SET and SET keys to change the Q value Use the UP and DOWN arrow keys to adjust the level ofthe EQ as before A selected EQ that has been moved with its level raised and Q adjusted is shown below VELODYNE DIGITAL DRIVE NEXT SYSTEM RESPONSE EXTT SAUE Sy AN L 1 5 2 25 32 48 58 63 88 188 125 160 200 el mu Bo i 2 ole lt e Se Velodyne Digital Drive User s Manual Page 20 22 To unselect the EQ press SELECT again then use the right and left arrow keys to position the cursor on another EQ if desired and repeat step 21 until the room is equalized 23 Once the room has been equalized you may want to return to the Settings Setup screen by positioning the cursor over the NEXT field on the EQ setup screen and pressing SELECT and review modify the presets This screen is shown below NOTE This step is required ONLY if you wish to customize the presets VELUDYNE DIGITAL DRIVE FREU SYSTEN SETTINGS EXTT SAVE cl Ur ae e Fa 3 LOW PASS XOUER FREQ 188 198 108 100 D 100 LOW PASS AUER SLOPE 24 24 24 24 24 24 SUBSONIC FREQUENC
34. ion microphone Microphone windscreen cover Tabletop microphone stand Microphone stand adapter 25 foot audio video cable 20 foot XLR microphone cable Installation Overview Your new Velodyne servo subwoofer provides for a number of installation options Read all the installation information below in order to determine which installation option is best for your system Remember to perform all installation procedures with the subwoofer unplugged until instructed to activate it Subwoofer Controls and Ports The Velodyne Digital Drive subwoofer is set up configured and adjusted by the controls inputs and connections located on the rear panel of the unit Figure 2 shows the location of each of these important operational interfaces Brief descriptions of each interface follow Velodyne Digital Drive Series SERIAL LARP Figure 2 Digital Drive Rear Panel Connections Velodyne Digital Drive User s Manual Page 4 13 14 POWER Press the POWER switch to the ON position to activate the subwoofer If the unit is to be left unused for an extended period of time move this switch to the OFF position to prolong the life of the subwoofer 117V 60Hz 15A Connect your detachable AC power plug to this male interface connection The detachable cord allows for easy replacement should the original be damaged RS 232 IN Use this port to communicate with your computer for software updates a touch panel remote control or
35. justed to taste Theater Music Indicator This setting affects the distortion limiting capabilities of the digital servo system and allows you to choose between a theatrical subwoofer a musical subwoofer or somewhere in between The scale is 1 for maximum theater least amount of servo gain and 8 for maximum music most amount of servo gain Velodyne Digital Drive User s Manual Page 10 Other controls on the Setting Setup screen e Auto On Off Active lnactive When active this control automatically shuts the subwoofer off after a length of time without any source signal The woofer automatically wakes upon receiving input signal again e Night Mode Maximum Volume When the NIGHT mode button is pressed on the remote this setting is invoked Night mode is indicated by the amber bar underlining the VELODYNE logo The subwoofer will not play louder than this volume level until the night mode is defeated Onscreen Programming and Setup Step by Step Follow the steps below in order to activate your subwoofer and determine the best room location for it 1 Push the POWER switch on the subwoofer s rear panel to the ON position 2 Make sure your receiver processor is on and the volume control is set to minimum 3 If you haven t already done so establish the crossover settings for your satellites Generally if your satellites can be crossed over at 80Hz that is accurately reproduce frequencies to this level it is an ide
36. ll warnings on the equipment itself There are no user serviceable parts inside Please refer all service questions to your authorized Velodyne dealer Prior to Installation Please unpack the system carefully This unit is heavy Use caution when lifting or moving to avoid injury Remove all staples used to seal the carton as they can scratch the cabinet Please save the carton and all packaging materials for future use Packing this unit in any other carton may result in severe damage when shipping Please take a moment to record the serial number and date location of purchase in the space provided on the warranty card for future reference or register on line at www velodyne com Caution This subwoofer has electronics built into the cabinet Do not place the cabinet next to sources of heat such as furnace registers radiators etc Do not place the unit near sources of excessive moisture such as evaporative coolers humidifiers etc The power cord should be routed in such a way that it will not be walked on pinched or compressed in any way that could result in damaging the insulation or wire Regardless of where you install your Velodyne subwoofer it must remain in an upright position woofer facing forward Using shipping or otherwise storing the subwoofer in any other position for an extended period of time may result in damage to the unit not covered by warranty Certain types of televisions are particularly sensitive to stray magnetic
37. lls off rapidly below 100Hz causing the bass not to sound as loud This is the basis for the loudness contour switch included on many receivers and preamps In order for the bass to sound flat especially at lower levels you may need to increase the subwoofer volume in relation to the satellite speakers An increase of about 5 8dB is usually adequate There are two methods to accomplish this 1 Raise the internal volume control for the subwoofer in your surround receiver or processor or 2 Raise the volume of your Digital Drive subwoofer after you have finished your room equalization and other settings You can observe this difference by watching the system response graph as you raise the volume Of course all hearing is different so be sure to perform the above step to taste 25 Your setup is complete You are now ready to save settings You can press the EXIT button on the remote or position the cursor over the SAVE EXIT field on the screen and press select The system responds with the following screen TREY E oub LOW PASS XOUER FREQ LOW PASS XOUER SLOPE SUBSONIC FREQUENCY SUBSONIC SLOPE PHASE POLARITY JOLUME i 99 CONTOUR FREQUENCY CONTOUR LEVEL THEATER NUSIC 1 8 JS Sa cn E cn RICH Jee F cy CS ANJ Sp I Co J A nm J A Cri Po CC oS Cn Saw L Ce Gm cS CS CI MJ I V CS NJ oe cn 2 D C CS CS H 4 E 24
38. mmended by the manufacturer to avoid injury from tipover Wall or Ceiling Mounting The subwoofer should be mounted to a wall or ceiling only as recommended by the manufacturer Ventilation The subwoofer should be situated so that its location or position does not interfere with its properven tilation For example the subwoofer should not be situated on a bed sofa rug or similar surface that may block the ventilation openings or placed in a built in installation such as a bookcase or cabinet that may impede the flow of air through the ventilation openings Heat The subwoofer should be situated away from heat sources such as radiators heat registers stoves orother subwoofers that produce heat Power Sources The subwoofer should be connected to a power supply only of the type described in the operating instructions or as marked on the subwoofer Power Cord Protection Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them paying particular attention to cords at plugs convenience receptacles and the point at which they exit from the subwoofer Caution To prevent electrical shock match wide blade of plug to wide slot fully inserted Cleaning The subwoofer should be cleaned only as recommended by the manufacturer Nonuse Periods The power cord of the subwoofer should be unplugged from the outlet when left unused for a long period of time Object an
39. on NOTE After you successfully restore defaults you must recalibrate the Digital Servo system This is done easily simply press 6 then 7 on your remote Your DD unit will emit a60Hz tone and display a calibration value on the main screen for 10 seconds then reset itself Runtime Mode During normal use of your Digital Drive subwoofer you can use the preset buttons to invoke certain presets use the volume control to raise or lower the subwoofer s volume use the light and night buttons to control the logo light and night mode respectively and use the mute button to mute the subwoofer These settings are shown on the introductory screen as follows DIGITAL DRIVE PRESS MENU TO ENTER SETUP FOJE SUBWOOFER UCLUME 30 PRESET 1 ACTION ADVENTURE NIGHT HOLE ACTIVE SUBWUDFER MUTE ACTIVE COPYRDH 2083 VELOLYN ACOUSTICS INC Velodyne Digital Drive User s Manual Page 23 About Room Equalization This section gives some background on room equalization As a sub plays in a room the reflections of the sound waves off the walls create standing waves that is places in the room where certain frequencies are louder and others are diminished In addition to standing waves every room will also have locations where cancellations of the sound waves are like black holes that no amount of attenuation can fill Thus as a general rule it is better to cut down a peak of response rather than to boost up a valley i
40. owing screen appears VELODYNE DIGITAL DRIVE TEST TO RETURN SYSTEM RESPONSE E SIRBES SA Sa 15 28 25 32 4 50 63 80 108 125 160 200 e JL TELE gen no II III IT Velodyne Digital Drive User s Manual Page 17 gt Note that displaying the System Response screen by using the TEST button from the System Settings screen ONLY allows you to view the system response you cannot make any changes to EQs or volume Press TEST again to return to the System Settings screen NOTE To bypass the low pass crossover set the frequency to 199Hz 15 Now adjust the low pass crossover slope This setting is shipped at 24 dB octave a fairly steep slope to prevent the subwoofer from playing upper frequencies that might call attention to it during normal operation At this stage set the crossover settings under the column entitled SETUP Reduce the slope if necessary and use the BACK button to return to the EQ setup screen and observe the system response graph it should be as flat as possible at the crossover frequency and immediately to the left and right of it Too gradual a slope e g 6 dB octave may produce a bump at the crossover frequency and too steep a slope may produce a dip 16 You should normally not need to adjust the subsonic filter Do so only if there are anomalies in the very lowest frequencies that you cannot address using the normal EQ process as described below 17 Next adjust the phase and polarity settings i
41. put cable connection Make a connection between this input and the LFE output or the subwoofer output of your receiver or processor OR b LFE INPUT XLR location 6 on Figure 2 Make a connection between this input and the balanced LFE outputs of your receiver or processor OR c INPUT LEFT and RIGHT location 11 on Figure 2 Make a connection between these inputs and the stereo outputs of your receiver or processor OR d SPEAKER LEVEL INPUT location 14 on Figure 2 Make a connection between these inputs and the left and right speaker connections on your receiver or processor Make this connection Figure 2 by either inserting speaker wire into the correct polar terminals or by removing the banana plug jack caps and inserting banana plug wire into the jacks NOTE Refrain from routing connections permanently at this time to accommodate subwoofer room placement as described below 3 Establish the Line level connection optional Connect to a pre amplifier s main outputs and return them to your amplifier inputs When installed in this fashion your satellite speakers will be crossed over at 80Hz which removes the lower bass from your amplifier and speakers enabling them to do a better job reproducing high frequencies By utilizing this method you will have a bi amplified system gaining improved power and headroom for your system A Word About Subwoofer Outputs The Velodyne subwoofer is designed to operate using the full ran
42. rden Besch digungen die eine Reparatur erforderlich machen Subwoofer sollte von qualifiziertem Fachpersonal repariert werden wenn a Das Netzkabel oder der Stecker besch digt sind b Gegenst nde oder Fl ssigkeiten in den Subwoofer gelangt sind c Der Subwoofer dem Regen ausgesetzt wurde d Der Betrieb des Subwoofers gest rt ist oder seine Leistung deutlich nachgelassen hat e Der Subwoofer fallengelassen oder besch digt wurde Reparatur und Wartung Durch den Benutzer auszuf hrende Wartungsma nahmen des Subwoofers sind auf die in der Bedienungsanleitung angegebenen Prozeduren beschr nkt berlastung Zur Vermeidung von Brandgefahr und elektrischem Schlag Wandsteckdosen Verl ngerungskabel bzw eingebaute Steckdosen nicht berlasten Ersatzteile Wenn Ersatzteile ben tigt werden sicherstellen da der Servicetechniker entweder die vom Hersteller angegebenen Ersatzteile benutzt oder Teile die den Originalteilen entsprechende Kennwerte besitzen Die Verwendung von Ersatzteilen die nicht zugelassen sind kann Br nde elektrischen Schlag oder andere Gefahren verursachen Sicherheitspr fung Nach Beendigung von Wartungs oder Reparaturma nahmen an diesem Produkt vom Servicetechniker Sicherheitspr fungen zum Nachweis des ordnungsgem en Betriebszustandes vornehmen lassen Alle anderweitigen Servicema nahmen von qualifiziertem Wartungspersonal durchf hren lassen Velodyne Digital Drive User s Manual Page ii
43. sults in extreme control over cone movement and very accurate low distortion sound All processing of the audio signal is done digitally To provide the power for driving this massive loudspeaker we incorporated an extremely efficient Class D switching amplifier This new amplifier features our patented energy recovery circuit design U S Patent 4 727 584 and 4 573 189 which drastically reduces wasted energy heat as compared to traditional switching designs One that is capable of running cool to the touch and providing 1250 watts RMS of power At typical listening levels Digital Drive subwoofers produce less than 1 harmonic distortion with input signals extending to 20Hz At higher levels the distortion barely exceeds 1 far better than any conventional design currently on the market This combination provides you with the best combination of clean deep accurate bass without making any sacrifice to distortion Care of Your Digital Drive Subwoofer Do not use any harsh detergents or chemicals to clean the cabinet Abrasives detergents or cleaning solutions may damage the finish on the cabinet We recommend using a damp cloth to clean the cabinet During normal conditions your new subwoofer may be left on continuously without any problems The unit is equipped with a signal sensing turn on off that will automatically turn on the unit when a signal is present at the inputs and turn off the unit after several minutes when there is no longer an
44. ter to or 4 Command and Parameter Data 3 to 4 ASCII characters see formats on next page 4or5 Termination Character d ni or command is ne continued next page Velodyne Digital Drive User s Manual Page 27 RS 232 Commands Command Acceptable n Activity Format Values Example s Comments Volume Control VO25 Sets volume to a value VO increments volume up or VO VO down or requests current volume setting 1 2 3 4 5 6 PS1 PS2 Activates the indicated PS3 PS4 preset or requests the PS5 PS6 current preset PS Logo Light Control 0 Light Off Turns the Logo Light 1 Light On on or off or requests light state 0 Night Mode Activates Deactivates Off Night Mode or requests 1 Night Mode light mode state On Mute Control 0 Mute Off Mutes Unmutes the 1 Mute On woofer or requests mute state Velodyne Digital Drive User s Manual Page 28 Other Velodyne Subwoofer Products Signature 1812 SPL Series II SPL 800 SPL 1000 SPL 1200 Deco System Deco System Deco Satellites CHT Series CHT 8 CHT 10 CHT 12 CHT 15 CHT Front Row System DLS Series DLS 3500 DLS 3750 DLS 4000 VX 10 Velodyne Digital Drive User s Manual Page 29 OK so how does this Digital Drive subwoofer sound In a word fabulous Velodyne s New Digital Drive Series is a huge advance in subwoofer technology John E Johnson Jr Secrets of Home Theater and High
45. trol to lower the subwoofer s volume to 00 You can do this by simply holding down the VOL button on the remote for a few seconds 8 Raise the volume on your receiver processor until the DD test sweep a tone that sweeps from 20Hz up to 200Hz can be heard from your system s speakers Continue to raise the volume until the system response graph on your TV shows the response of your full range speakers the right hand portion of the graph at approximately 86 dB or a comfortable listening level This is shown below VELODYNE DIGITAL DRIVE NEXT SYSTEM RESPONSE EXIT SAUE 76 wat o 59 Caen 56 SE Lente OO D 26 25 2 40 59 63 80 188 125 164 208 4 kat wee yy um ve a zum es mi L Fal z al wl el 7 7 Ki gt 0 12 NAU KEYS 9 Now use the DD remote control to raise the level of the subwoofer to match the level of your full range speakers That is the SYSTEM RESPONSE graph should be relatively flat although at this point there will be peaks and valleys that will be addressed next The screen should now look something like this see next page Velodyne Digital Drive User s Manual Page 13 VELODYNE DIGITAL DRIVE NEXT SYSTEM RESPONSE EXIT SAUE D 20 25 32 48 54 63 60 IR 125 168 200 6 LLLLLLLL wa i emi es im zaii all Le 12 WAU KEYS A Word About Room Placement Room placement is the first step in equalizing your sub s to your room Subwoofers
46. ture by incorporating two coils operating out of phase in a push pull configuration within two magnetic gaps and suspended Velodyne Digital Drive User s Manual Page 24 by dual spiders for even greater linearity We designed this motor to produce over one inch 1 1 4 to be exact of linear motion with a maximum mechanical limit of 1 3 4 peak to peak Also with this unique configuration the distortion products are reduced by a factor of two over conventional single coil structures with dramatically improved cone control This driver alone would result in less distortion than any other non servo design After optimizing every remaining part of the loudspeaker we then turned to the electronics As in our other servo products we then incorporated closed loop accelerometer based servo control of the loudspeaker At the heart of this control system is a low mass digital accelerometer rigidly attached to the voice coil The accelerometer continuously monitors cone motions providing a digital feedback signal for the servo control circuitry This high gain system is designed to improve linearity and reduce distortion approximately 30 times over conventional non servo systems While the input signal is being sent to the amplifier which powers the driver a continuous signal representing cone motion is being sent to a computer This computer constantly adjusts for any deviation between the input signal and the subwoofer s output This self regulation re
47. ver produce much more than 3 distortion at common listening levels Many models we have tested produce greater than 20 distortion at 20Hz when driven to 100dB This is a typical output level obtained in many systems particularly home theater systems Even at 1 watt many conventional units produce several percent distortion Secondly the odd order higher harmonics are much more offensive to the human ear than the closer 2nd harmonic An interesting result of this reduced distortion is that some of the bass when played over an extremely accurate subwoofer system seems to actually be missing The truth however is that the missing bass was never there to begin with Distortion products of conventional woofers actually add to the bass spectrum making it appear louder than recorded This is due to the additional and unwanted harmonics distortion of the fundamental signal While conventional subwoofers offer little to combat distortion products we at Velodyne have developed another way The Velodyne Digital Drive Servo Control Solution Velodyne Digital Drive subwoofers produce sound in the same manner as conventional loudspeakers a cone shaped piston is forced to move by means of a linear motor However this is about the only conventional part of the subwoofer We determined that conventional motors are unacceptable when called upon to produce the amount of linear motion we desired This inadequacy led us to design an improved motor struc
48. volume and phase controls of your DD unit NOTE Ifthe remote seems intermittent or unresponsive be sure you are pointing it at the subwoofer and not your TV AND REMEMBER Use the RIGHT and LEFT directional arrow buttons that surround SELECT to move through the fields of the setup screen and change settings by using the UP and DOWN arrow keys 14 Beginning with the low pass crossover set the frequency to the same value as the crossover settings on your receiver processor for example many units have a large small satellite setting Again consult your owner s manual for more information You will notice that changing these values cascades the values out to all the presets That is because once these values are set they will not normally change from preset to preset but if later you wish to customize a specific preset you can Remember to use the LEFT and RIGHT arrow buttons for navigation on this screen and the UP and DOWN buttons for changing the values An example of a crossover changed to 100Hz is shown on the next page Velodyne Digital Drive Users Manual Page 16 i HTC a PREV RE Wm 190 100 108 mmm 24 24 4 24 A 3 24 Be bb BS 4 24 24 24 A 24 oa a s pm 0 ee PT iS ay GA a ED tA Zei M 35 5 45 3 58 o W 20 00 30 00 o0 EN D Heli E Aal SD PRESS TEST KEV FOR GRAPH SEREEN TIP To see immediate feedback on the effects of your changes to the system response graph press the TEST button The foll
49. w Velodyne subwoofer using the line level connections you should always use shielded phono cables There are many quality cables available today most any of which will work perfectly well We do recommend that you keep the length of cable as short as possible to avoid any potential noise problems When routing cables try to keep them away from equipment that generates significant noise such as industrial or digital equipment A Word About Connecting More Than One Subwoofer If you are connecting more than one DD subwoofer to your system you set each woofer up separately and then hook them together in a daisy chain Choose one sub for all the connections described below well call this the primary sub and then connect an RCA jack from the THRU RCA jacks of the primary to the Input jacks of the secondary sub You will also need to obtain a Mouse Extension serial cable available at any computer store from your Authorized Velodyne dealer or from Velodyne directly and connect the RS 232 OUT port of the primary sub to the RS 232 IN port of the secondary sub Then all runtime commands directed at the primary sub such as select preset volume etc will be communicated to the secondary sub automatically through the serial cable If you have more than two subs in your setup simply continue the daisy chain from the secondary sub to the next sub in the line using both RCA and serial connections and so on Note that th
50. y signal at the inputs If you plan to leave the subwoofer unused for an extended period of time we recommend that you unplug the unit Troubleshooting and Service If you should experience a problem with the operation of your subwoofer please check all of the follow ing before seeking service Following is a simple troubleshooting guide to assist you 1 Verify unit is plugged in and power outlet used is active 2 ls the unit receiving an input signal from your source A good way to test this is to connect the EQ audio out to the LFE input both on the subwoofer back panel then enter setup mode see Step 6 The woofer should play the sweep tone used for room EQ 3 Have all controls on subwoofer volume crossover phase etc been properly set 4 If unit has been running at high levels for an extended period of time one of the protection circuits may be engaged e Has the built in amplifier overheated ls your power line voltage sagging under heavy use Velodyne Digital Drive User s Manual Page 25 If the protection circuitry is active the unit may cycle on and off until operating parameters return to normal Under more serious conditions the unit may shut off completely Normal operation will return upon cooling but you may be required to unplug the unit momentarily The following conditions require service by a qualified technician The power cord has become damaged The unit does not appear to operate normally or exh
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