Velodyne Acoustics VA-1250X User's Manual
Contents
1. Subwoofer out from A V Processor From the low pass output of your signal processor Install into right or left RCA line in connector in the back of the subwoofer or use a Y connector adapter into both right and left RCA line in connectors in the back of the subwoofer Speaker level connection Figure 2 shows an easy way to connect your VA 1250X subwoofer directly to your receiver or integrated amplifier When connected in this fashion your satellite speakers will be crossed over at 80 100Hz which removes the lower bass from your speakers thus enabling them to do a better job reproducing high frequencies You may also connect your satellites directly to your receiver or amplifier along with the subwoofer if you wish to bypass the internal high pass crossover Caution To avoid damage to your main amplifier be sure to maintain correct polarity when making all connections Red positive to red and black negative to black Be sure that all connections are tight and that there are no loose strands or frayed wires continued 5 IS Installation Your new VA 1250X subwoofer system 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 system power turned off Inputs Your new subwoofer is equipped with both speaker level and line level inputs Use the LINE2. IN jacks when connecting your sub woofer to a pre amp signal processor orsubwoofer output LFE The FROM AMPLIFIER jacks connect directly to the speaker outputs of a integrated amplifier or receiver Your amplifier section will notice no additional loading effects when you use these inputs because of their high impedance Note Do not use both LINE IN and FROM AMPLIFIER inputs simulta neously Volume control This control allows you to balance the output from the subwoofer to the main speakers in your system This control should be set to achieve similar volume level from both the main speakers and subwoofer Low pass crossover Both sets of inputs sum the left and right channels together and the resulting signalis passed through an adjustable low pass crossover before being amplified The crossover control allows you to adjust the upper limit of the subwoofer s frequency response from 40 to 120 Hz The subwoofer s response will begin rolling off above the frequency you set this control to You should set the crossover frequency to obtain a smooth and seamless transition from the subwoofer to the main speakers in your system If your main speakers are smaller units with limited low frequency output you may wish to choose a higher frequency such as 100 120Hz than you would with larger speakers which have greater low frequency output With larger speakers you might start with this control set lower such as 80Hz A bypass switch is al
3. If you know subwoofers you know about Velodyne It s safe to say that when it comes to woofin done right Velodyne s bigger models are probably the safest bet there is we just sat there marvelling at the sheer power and majesty of this junior varsity Velodyne Corey Greenberg Home Theater Technology February 1995 Face Off Comparison of five subwoofers Model Tested VA 1012X Velodynes VA 1215X is a great subwoofer It combines deep loud high quality output with a slick styling a fairly small cabinet full flexibility it s sure to stand tall next to the very best of its peers Tom Nousaine Video October1995 Model Tested VA 1215X Velodyne Acoustics Inc 1070 Commercial St Suite 101 San Jose CA 95112 408 436 7270 voice 408 436 7276 fax Web Site http www velodyne com E mail velodyne earthlink net Printed on recycled paper 63 VA1250X Rev B H1250X Owner s Manual Velodyne Audio Video Subwoofer System INSTALLATION WORKSHEET Date Model Installed by Phone Volume Setting Output Level dB Low Pass X Over Hz Phase Position High Pass X Over 80 Hz 100 Hz Output Levels Speakers Left Front _________ dB Right Front _________ dB Left Rear ____ dB Right Rede ot dB Center dB FOR YOUR RECORDS DATE PURCHASED DEALER SERIAL NOTE Please complete and return your warranty card within ten 10 days 10 L
4. L enceinte a t expos e la pluie d Lenceinte 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 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 Toute autre r paration doit tre r f r e du personnel qualifi a no Congratulations Congratulations on your purchase of a Velodyne VA 1250X sub woofer system This system represents the state of the art in accurate low frequency reproduction Read and follow the instruc tions below to insure safe and proper system operation Warning To prevent fire or shock h
5. SPECIFICATIONS VA 1250X Cabinet incl legs Frequency Response High Pass Crossover Low Pass Crossover Amplifier Class A B Woofer Magnet Voice Coil Passive Radiator Inputs Outputs Warranty Weight 18 x 19 x 19 W H D 22Hz 120Hz 3 dB 80Hz or 100Hz 6 dB octave 40Hz 120Hz 6 dB octave 24 dB ultimate 250 watts 750 watts peak 12 forward firing 70 oz 2 1 2 15 downward firing Line level amp speaker level Line level amp speaker level Two years parts amp labor 67 lbs approx Specifications are subject to change without notice 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 an 8 D D 10 11 12 13 14 15 16 17 18 19 20 Read Instructions All safety and operating instructions should be read before the su
6. The unit has been exposed to water 4 Some part of the cabinet or circuitry is physically damaged ND Thank you for purchasing a Velodyne When using a pair of subwoofers in stereo it is preferable to place each subwoofer adjacentto the satellite of the same channel Keep in mind that frequency response and output level can be drastically influenced by placement depending on the acoustic properties of the listening room Typically the subwoofer will sound louder when placed next to a wall or in a corner Caution The VA series subwoofers have amplifiers built into the cabinet Do not place the cabinet next to sources of heat such as furnace registers radiators etc The power cord should be routed in such a way that it will not be walked on pinched or compressed in any way Forbest sound keep the subwoofer in an upright position with the passive radiator facing downward The subwoofer is magnetically shielded to reduce magnetic emis sion from its cabinet to increase the number of possible locations available for placement However this shielding may not be ad equate for all installations Certain types of televisions are particu larly sensitive to stray magnetic fields If your television produces distorted colors after installation of your subwoofer simply increase the distance between your television and the VA 1250X until normal color and operation is returned Care of your subwoofer Do not use any harsh detergents
7. 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 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 E W rme Subwoofer nicht in der N he von W rmequellen wie Heizk rpern W rmespeichern Ofen 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
8. have a subwoofer out jack that is already crossed over and designed to be used with a conventional amplifier and speaker Combining both an external crossover and the one internal to the subwoofer may result in low Figure 1 Installation using line level line in inputs PRE AMP AMPLIFIER MAIN OUTPUTS MAIN INPUTS MAIN OUTPUTS RIGHT LEFT RIGHT LEFT RIGHT LEFT ween TO SATELLITE SPEAKERS__ 4 I
9. 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 werden 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 od
10. 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 the subwoofer may be left on continu ously 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 any signal at the inputs If you plan to leave the unused for an extended period of time we recommend that you turn off the unit by the master power switch on the rear panel continued 7 ER IMPORTANTES CONSIGNES DE SECURITE ATTENTION Risque d lectrocution Ne pas ouvrir Attention Afin d viter 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 avertir l utilisateur que d importants conseils de fonctionnement et de maintenance entretien sont fournis avec l enceinte d extr mes graves 1 Lire le mode d emp
11. 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 and 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
12. 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 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 qu aucun objet ne tombe et ce qu aucun liquide ne soit vers sur l enceinte 16 Dommages n cessitant r paration Lenceinte ne doit tre r par e que par du personnel qualifi lorsque a le cordon lectrique ou la prise ont t endommag s b Des objets sont tomb s ou du liquide a t vers sur l enceinte c
13. azard do not expose this equipment to rain or moisture To avoid electrical shock do not open speaker enclosure or amp chassis cover Please observe all 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 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 Record the serial number in the space provided on the warranty card for future reference Product Features amp Controls 12 forward firing woofer with 2 1 2 voice coil amp 70 oz magnet 15 downward firing passive radiator Built in 250 watt RMS power amplifier Adjustable 40 to 120Hz low pass crossover with bypass option Selectable 80 or 100Hz high pass crossover Line level inputs amp outputs Speaker level inputs amp outputs with 5 way binding posts Signal sensing auto turn on off with bypass option Variable volume control Variable phase control 0 to 180 degrees Two position audio video listening selection switch 3dB video Response 22 Hz to 120 Hz 3dB Magnetically shielded for video use Dual staggered low pass crossover 12dB octave initial 24dB octave ultimate Gain compression circuit to protect woofer from over excursion Input overload protection Thermal power sensi
14. bwoofer 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 shouldbe used only with acartor stand recommended by the manufacturer 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 proper ventilation 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 or other 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
15. er 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 Troubleshooting amp Service Before seeking service for your VA 1250X subwoofer please re check all systems Following is a simple troubleshooting guide to assist you 1 Verify unit is plugged in and power outlet used is active 2 Is power switch on 3 Is auto turn on off set properly 4 Is unit receiving an input signal from your source 5 Have all controls on subwoofer volume crossover phase etc been properly set 6 If unit has been running at high levels one of the protection circuits may be engaged Has the built in amplifier overheated Has the speaker s voice coil started to heat up If the protection circuitry is active the unit may cycle on and off until operating parameters return to normal Under more serious condi tions the unit may shut off completely Normal operation will return upon cooling but you may be required to turn the power off and then on again to reset the unit The following conditions require service by a qualified technician The power cord has become damaged The unit does not appear to operate normally or exhibits a marked change in performance 3
16. loi 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 Il est conseill de conserver les conseils de s curit et de fonctionnement pour un ventuel usage futur 3 Avertissements Il est important de se conformer tous les conseils de fonctionnement concernant l enceinte et toutes les instructions inscrites sur l enceinte Suivre les conseils Tous les conseils d utilisation et de fonctionnement doivent tre suivis la r gle Eau et humidit Ne pas utiliser l enceinte pr s d une source d eau par exemple pr s de la baignoire d une bassine de lavage d un vier de cuisine d un bac lavage dans un sous seul mouill pr s d une piscine Pieds et Supports N utiliser que des pieds et supports recommand s par le fabricant 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
17. ng to protect woofer s voice coil from burnout Power on LED green continued 1 is Figure 2 Installation using speaker level from amplifier inputs MAIN OUTPUTS speaker level INTEGRATED AMP RECEIVER O SATELLITE SPEAKERS Interconnect cables When installing your VA 1250X using the line level inputs outputs you should use standard shielded phono cables Always keep the lines as short as practical to minimize noise When using the speaker level inputs outputs use the same quality speaker cable to your subwoofer as you run to your satellites Placement The VA 1250X operates at very low frequencies which are primarily omni directional While it is recommended that the subwoofer be placed on the same plane as the satellite speakers room and system conditions often dictate otherwise Ask your dealer for help in placement output and increased noise In these cases to optimize your sub woofer performance you should bypass the internal crossover in your Velodyne subwoofer To bypass the crossover within the subwoofer simply locate the switch marked normal bypass on the back panel of the subwoofer and set to the bypass position This will eliminate the internal crossover function Note If not using an external crossover you should use the built in crossover for optimal performance
18. s crossover switch This switch selects the frequency for the high pass crossover This crossover is functional on both line and speaker level outputs Smaller speakers with limited low frequency output may prefer the higher 100Hz setting which will reduce the low frequencies sent to them Larger speakers with greater low frequency output may be able to handle the 80Hz setting without strain Power switch The master power switch is located on the right half of the unit This rocker style switch is the main on off for the unit This switch should be set to position 1 for on up O for off down continued 3 IS Detachable power cord available on some versions Allows for easy replacement should the original be damaged Line level connection Figure 1 shows connection to a pre amplifier s main outputs and returning them to your amplifier inputs When installed in this fashion your satellite speakers will be crossed over at 80 100Hz which removes the lower bass from your amplifier and speakers enabling them to do a better job reproduc ing 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 fullrange audio signal for input when using the built in crossover Some surround sound processors receivers including the Dolby AC3 system with there 1 channel outputs
19. 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 to perform safety checks to determine that the product is in proper operating condition All other servicing should be referred to qualified service personnel WICHTIGE SICHERHEITSHINWEISE VORSICHT GEF HRLICHE SPANNUNG NICHT FFNEN 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 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
20. so provided if you wish to use an external crossover If you are not using an external crossover we recom mend that you use the one provided within the unit for optimum performance Phase adjustment This control allows you the ability to compensate for having the subwoofer in a different location than the main speakers Ideally you will have the sound from the subwoofer reach the listening position the same time as the sound from the main speakers However if the distance from the listening position to the subwoofer and the distance from listening position to the main speakers differs the sound from each will reach your ears at a different time This control allows the signal to be delayed up to 180 degrees so the output of the subwoofer will blend in to that of your main speakers without any cancellation Video Audio switch Many listeners prefer an emphasized low end on movie soundtracks This switch sets the VA 1250X for an additional 3dB of output when in video mode Auto turn on function With this function in the auto position your subwoofer can be safely left with the main power switch on continuously The sub woofer will turn itself on automatically when an audio signal is present If no signal is present for approximately 15 minutes the unit will switch to standby mode While in standby mode your subwoofer will draw very minimal power This function can be disabled by leaving the switch in the on position High pas
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