Velodyne Acoustics HGS-15 THX User's Manual
Contents
1. 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 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 Ofen oder anderen w rmeerzeugenden Subwoofern aufstellen Netzanschlu Subwoofer nur an eine der in der Bedienungsanleitung beschriebenen2. If you know subwoofers you know about Velodyne Corey Greenberg Home Theater Technology February 1995 Face Off Comparison of five subwoofers In general the Velodyne could play slightly louder and often cleaner than the Sunfire D B Keele Jr Audio June 1998 How do they get this kind of bass out of sucha tiny box Deep tight tuneful and loud enough to rattle pictures on the wall this is serious subwoofing Robert Deutsch Stereophile Guide to Home Theater September 1998 Velodyne Acoustics Inc 345 Digital Drive Morgan Hill CA 95037 408 465 2800 voice 408 779 9227 fax Web 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 10 02 63 620 Rev B HGS 15 THX Ultra 2 and HGS 18 THX Ultra 2 Owner s Manual Veloayne High Gain Servo Controlled Audio Video Subwoofer System IMPORTANT SAFETY INSTRUCTIONS INSTALLATION WORKSHEET CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN Date MODEL SERIAL 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 Installed by Phone 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
3. Objects have fallen or liquid has been spilled into the subwoofer c The subwoofer has been exposed to rain DATE PURCHASED d The subwoofer does not appear to operate normally or exhibits a marked change in performance e The subwoofer has been dropped or damaged DEALER 17 Servicing The user should not attempt to service the subwoofer beyond what is described in the operating instructions 18 Overloading Do not overload wall outlets extension cords or integral convenience receptacles as this can SERIAL result in a risk of fire or electric shock 19 Replacement parts When replacement parts are required be sure the service technician has used NOTE Please complete and return your warranty card within ten 10 days or replacement parts specified by the manufacturer or have the same characteristics as the original part Reg iste F O N L INE BROS It S fa ste r an d eas ie r Unauthorized substitutions may result in fire electric shock or other hazards 20 Safety Check Upon completion of any service or service of repairs to this product ask the service technician Website www velodyne com to perform safety checks to determine that the product is in proper operating condition All other servicing should be referred to qualified service personnel 1 5 IJ SPECIFICATIONS HGS 15 THX Ultra2 HGS 18 THX Ultra 2 Cabinet H W D Frequency Response Harmonic Distortion Subsonic Filter High Pass Crossover Low Pas
4. leaving the speaker is at frequencies other than the intended input signal Most subwoofers on the market today however produce much more than 3 distortion at common listening levels Many models we have tested produce greater than 20 distortion 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 10 zZ Installation Your new Velodyne servo subwoofer provides for a number of installation options Read allthe 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 equipp
5. 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 werden Besch digungen die eine Reparatur erforderlich machen Subwoofer sollte von qualifiziertem Fachpersonal repariert werden wenn Das Netzkabel oder der Stecker besch digt sind Gegenst nde oder Fl ssigkeiten in den Subwoofer gelangt sind Der Subwoofer dem Regen ausgesetzt wurde 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 be
6. response of 18 120Hz HGS 15 THX Ultra 2 15 120Hz HGS 18 THX Ultra 2 e Detachable power cord Magnetically shielded for video use e Multiple staggered low pass crossovers 12dB octave initial 48dB octave ultimate e Gain compression circuit prevents over excursion amp amp clipping e Infrared remote control with power volume amp mute functions e External remote connector for custom installation e Power on amp protection indicator LED e Multi layer resin laminate cone e High excursion rubber surround The Velodyne servo control solution Your Velodyne HGS subwoofer produces 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 structure by incorporating two coils operating out of phase in a push pull configuration within two magnetic gaps amp suspended by dual spiders for even greater linearity We designed this motor to produce over one inch 1 1 8 to be exact of linear motion with a maximum mechanical limit of 2 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 resu
7. simple troubleshooting guide to assist you Verify unit is plugged in and power outlet used is active Is power switch on Is auto turn on off set properly Is unit receiving an input signal from your source Have all controls on subwoofer volume crossover phase etc been properly set Is the mute on the remote control engaged Are both volume controls properly set 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 es your power line voltage sagging under heavy use If the protection circuitry is active the unit may cycle on and off until operating parameters return to normal Protection circuit operation is usually indicated by a blinking power led Under more serious conditions 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 2 The unit does not appear to operate normally or exhibits a marked change in performance 3 The unit has been exposed to water 4 Some part of the cabinet or circuitry is physically damaged Thank you for purchasing a Velodyne 13 i As in our other servo products we then incorporated closed loop accelerometer based servo control of the loudspeaker At the heart of this control s
8. 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 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 cord
9. 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 continued 3 I A bypass switch is also provided if you wish to use an external crossover If you are not using an external crossover we recommend that you use the one provided within the unit for optimum performance Phase adjustment 0 180 This control allows you the reverse the phase of the subwoofer s output signal 180 to correct for any possible mismatch amp resulting cancellation between the subwoofer and your main speakers amplifier To adjust simply listen to the system with music playing Then move the switch from one position to the other and listen for a change in low frequency output The correct position will have a greater amount of apparent low frequency output Subsonic 15Hz THX 35Hz This adjustment alters the low frequency limit of the subwoofer For most systems we recommend the 15Hz setting which will allow the subwoofer to deliver the maximum low bass output it was designed for In certain movie theater installations which suggest that the extreme low bass be limited move the switch position to 35Hz and the response will be attenuated below this frequency Crossover switch In Out THX This switch allows the electronic crossover circuitry to
10. Installation using line level inputs BALANCED BALANCED INPUT RIGHT INPUT LEFT SUBWOOFER LOW PASS VOLUME CROSSOVER A ote oe O z os PHASE SUBSONC XOVER POWER un mx mu on 35Hz OUT IN AUTO ON x HIGH PASS CROSSOVER RIGHT von CI 4 TEX LEFT SPEAKER LEVEL SPEAKER LEVEL Velodyne VELODYNE ACOUSTICS INC ial Label PRE AMP AMPLIFIER MAIN OUTPUTS MAIN INPUTS MAIN OUTPUTS LEFT RIGHT LEFT RIGHT RIGHT LEFT TO SATELLITE SPEAKERS 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 reproducing high frequencies By utilizing this method you will have a bi amplified system gaining improved power and headroom for your system THX Ultra 2 Operation On the back panel of the subwoofer select the THX Subwoofer volume level and the Subsonic X Over and High Pass Crossover THX settings 6 IS Subwoofer outputs The Velodyne subwoofer is designed to operate using the full range audio signal for input when using the 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 cro
11. be removed from the signal path This is required in certain installations which route the signal through external processors with a crossover circuit oftheir own such as the new digital units Simply move the switch to OUT to disengage the built in crossover For all other installations which do not have a separate electronic crossover we recommend you leave the internal crossover IN to provide optimum performance 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 subwoofer 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 standy mode your subwoofer will draw very minimal power This function can be disabled by leaving the switch in the on position response and output level can be drastically influenced by placement depending on the acoustic properties of the listening room Typically the optimum location for a subwoofer is tucked away in a corner of your listening room This location will usually offer the greatest output levels and optimum low frequency extension The worst location for a subwoofer it 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 cha
12. 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 any signal at the inputs If you plan to leave the subwoofer unused for an extended period of time we recommend that you turn off the master power switch on the rear panel Congratulations Congratulations on your purchase of a Velodyne subwoofer system This system represents the absolute state of the art inaccurate low frequency reproduction We believe this to be the finest subwoofer available anywhere In this new subwoofer we have combined our radical new driver amp amplifier designs to obtain our traditionallyaccurate sound while increasing efficiencyand output tonew standards 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 Note Do not move unit while turned on or plugged in Do not leave unit in direct sunlight or use in high humidity environments Warning To prevent fire or shock hazard do not expose this equipment to rain or moisture To avoid electrical s
13. ed with speaker level line level and balanced XLR inputs Use the LINE LEVEL jacks when connecting your subwoofer to a pre amp signal processor line level crossover or receiver with pre amp level outputs The SPEAKER LEVEL jacks connect directly to the speaker outputs of any amplifier integrated amplifier or receiver Your amplifier section will notice no additional loading effects when you use these inputs due to their very high impedance Important Do not use both LINE LEVEL and SPEAKER LEVEL connections simultaneously Volume control This control allows you to balance the output from the subwoofer to the main speakers amplifier in your system This control should be set to achieve similar output level from both the main speakers and subwoofer when listening to music The remote may then be used for minute temporary adjustments such as increasing the volume for home theater usage Low pass crossover 40 to 120Hz All inputs sum the left and right channels together with the resulting signal passing 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 120Hz 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
14. electric shock to persons Volume Setting Output Level dB 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 Low Pass X Over ________ Hz Phase Pos 0 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 180 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 a cart or stand recommended by the manufacturer 7 Wall or Ceiling Mounting The subwoofer should be mounted to a wall or ceiling only as recommended by High Pass X Over 80 Hz Sub Sonic 15 Hz the manufacturer 8 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 100 Hz 45 Hz block the ventilation openings or placed in a built in installation
15. h may result in a short which may damage your equipment Cables of extremely large size are typically not required Extremely large gauge wire may not properly fitin the binding posts resulting in a poor connection and possible short circuits Placement True subwoofers operate at extremely low frequencies which are primarily non 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 Keep in mind that frequency 8 IS External remote jack This connection allows an auxiliary infrared remote receiver eye to be installed and placed where most convenient This option is usually only required when the subwoofer is to be part of a custom installation in which the built in eye located adjacent to the speaker on the front baffle will be hidden in a location where it can not adequately receive signals from the remote High pass crossover switch 80Hz THX 100Hz This switch selects the frequency for the high pass crossover outputs This crossover is functional on both line and speaker level outputs Smaller speakers with limited low frequency ability 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
16. hock 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 This unit is extremely heavy Use caution when lifting of 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 continued 1 I Product Features amp Controls e 15 12 7 piston diameter or 18 15 2 piston diameter subwoofer with tandem 3 voice coils and 220 oz magnet e Built in 1250 watt RMS high efficiency class D amplifier e Accelerometer based servo control system for extreme accuracy e Adjustable 40 to 120Hz low pass crossover defeatable e Selectable 80 or 100Hz high pass crossover outputs e Balanced XLR inputs e Line level RCA inputs amp outputs e Speaker level inputs amp outputs with 5 way binding post connections e Signal sensing auto turn on off defeatable e Variable volume control e Selectable phase control 0 or 180 e Selectable subsonic filter 15Hz or 35Hz e Frequency
17. ils de fonctionnement et de maintenance entretien sont fournis avec l enceinte d extr mes graves te 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 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
18. liability The unit is protected against 1 Overdriving the speaker or amplifier 2 Overheating the amplifier 3 Excessive drop in power line voltage continued 9 IS Speaker level connection Figure 2 shows an easy way to connect your Velodyne 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 enabling them to doa 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 Interconnect cables When installing your new Velodyne subwoofer using the line level connections you should always use shielded phono cables There are many decent 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 using speaker level connections use a decent quality speaker cable that mates well with the connectors Be very careful to avoid any loose strands or frayed wires whic
19. lt in less distortion than any other non servo design We also designed this motor to be magnetically shielded from the start to allow for convenient placement near the television monitors of home theater systems The unique push pull twin voice coil in these subwoofers is designed and built in house on a custom built NC coil winding machine This unique machine winds this coil in a way like none other There are two coils each with two layers would on the same former Two layers are first wound inside the former and then two layers on the outside This results in increased heat dissipation over normal designs which simply pile added layers on top of each other burying several layers beneath the surface We then utilized materials such as Polyimide resin impregnated fiberglass for the former This material is capable of withstan ding the extremely high temperatures 320 degrees C that can occur when driven by our powerful amplifiers This results in excellent long term power handling capabilities These speakers also feature our new Multi Layer Resin Laminate cone system This new cone starts with two layers of reinforced pulp fiber which are then heat pressed with a binding resin to form an extremely rigid cone structure This helps to reduce distortion by decreasing cone flex and breakup Attached to the edge of the cone is our newly designed rubber surround tailored for long life under the high excursions these units are capable of contin
20. nnel 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 The subwoofer is magnetically shielded to reduce the amount of stray magnetic energy emitted from the speaker s motor structure This greatly increases flexibility when placing the unit close to video monitors as there is very little stray magnetism However this shielding may not be adequate in certain extremely sensitive installations Certain types of televisions are particularly sensitive to stray magnetic 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 Protection circuitry Your new subwoofer is equipped with special protection circuitry to provide maximum performance with greatest re
21. on lectrique ou la prise ont t endommag s b Des objets sont tomb s ou du liquide a t vers sur l enceinte c L enceinte a t expos e la pluie d 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 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 ar U Troubleshooting amp Service Ifyou should experience a problem with the operation of your subwoofer please check all of the following before seeking service Following is a
22. rlastung 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 aoc 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 conse
23. s Crossover Phase Amplifier Woofer forward firing Magnet Magnet Structure Voice Coil Inputs Outputs Warranty Weight 19 5 x 18 x 17 23 5 x 21 25 x 18 5 18Hz 120Hz 3 dB 15Hz 120Hz 3 dB less than 5 less than 5 15Hz or 35Hz 15Hz or 35Hz 80Hz or 100Hz 6 dB octave 40Hz 120Hz 12 dB octave initial 48 dB octave ultimate 0 180 0 180 Class D 1250 watts RMS 3000 watts peak 15 18 12 7 piston diameter 15 2 piston diameter 220 oz 13 7 lbs 220 oz 13 7 lbs 380 oz 24 Ibs 380 oz 24 lbs Tandem 3 push pull Line level Balanced amp speaker level Line level amp speaker level Two years parts amp labor 95 lbs approx 115 lbs approx Specifications are subject to change without notice 14 iS WICHTIGE SICHERHEITSHINWEISE VORSICHT GEFAHRLICHE SPANNUNG NICHT OFFNEN 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
24. ssover 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 120 Hz will restore maximum performance To bypass the subwoofer s internal crossover when the unit is being fed a low pass signal from another crossover simply locate the switch marked X over OUT IN on the rear panel of the subwoofer and set to the OUT position This will eliminate the internal crossover from the signal path Note If not using an external crossover you should use the built in crossover for optimal performance Figure 2 Installation using speaker level from amplifier inputs BALANCED BALANCED INPUT RIGHT INPUT LEFT SUBWOOFER LOW PASS VOLUME CROSSOVER Bolt 2 E EX i i BIETER iene a x mon ine 0 180 15Hz 35Hz OUT IN AUTO ON I m HIGH PASS CROSSOVER RIGHT 10r J 20 THX SPEAKER LEVEL INPUT CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN MAIN OUTPUTS speaker level INTEGRATED AMP RECEIVER SATELLITE SPEAKERS 7 gt
25. such as abookcase or cabinetthat may impede the flow of air through the ventilation openings 9 Heat The subwoofer should be situated away from heat sources such as radiators heat registers stoves or other subwoofers that produce heat 10 Power Sources The subwoofer should be connected to a power supply only of the type described in the Output Levels Speake r s operating instructions or as marked on the subwoofer 11 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 Left Front dB R ight Front dB receptacles and the point at which they exit from the subwoofer 12 Caution To prevent electrical shock match wide blade of plug to wide slot fully inserted 13 Cleaning The subwoofer should be cleaned only as recommended by the manufacturer 4 14 Nonuse Periods The power cord of the subwoofer should be unplugged from the outlet when left unused for Left Rear lt dB Right Rear dB a long period of time a 8 D D 15 Object and Liquid Entry Care should be taken so that objects do not fall and liquids are not spilled onto the Center dB enclosure 16 Damage Requiring Service The subwoofer should be serviced by qualified service personnel when a The power supply cord or plug has been damaged FOR YOUR RECORDS b
26. switch is the main on off for the unit This switch should be set to position 1 up for on and 0 down for off If the unit is to be left unused for an extended period of time the master power switch should be turned off Detachable power cord Allows for easy replacement should the original be damaged Infrared remote control The remote control unit supplied with your subwoofer allows for convenient adjustment of select subwoofer functions The power button turns the unit on off The volume buttons on the remote allow you to increase or decrease the output volume of the unit relative to the setting ofthe main volume control on the rear panel The middle reset button returns the remote volume control to neutral output level will then be determined by the manual volume control setting Initial setup of the unit should be performed with the remote volume at neutral while you adjust the manual volume knob to match playback levels The mute button silences the unit If you choose to utilize the remote to turn the unit on off we suggest setting the auto turn on switch to the on position This deactivates the sensing circuitry allowing the remote to have total control of unit power NOTE Two AAA batteries are required amp included for operation If the remote control operating range deteriorates please check batteries for deterioration Do not leave remote placed on heat generating items such as amplifiers continued 5 I Figure 1
27. ued 11 Er The first type of protection circuitry which 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 The blue power led may also blink rapidly This indicates operation of the thermal or undervoltage 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 Distortion in loudspeakers Nonlinear distortion is a problem which 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
28. ystem is a low mass accelerometer rigidly attached to the voice coil The accelerometer continuously monitors cone motions providing us with a 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 comparator circuit This circuit constantly adjusts for any deviation between the input signal and the subwoofer s output This self regulation results in extreme control over cone movement and very accurate low distortion sound To provide the power for driving this massive loudspeaker we incorporated an extremely efficient Class D switching amplifier One that is capable of running cool to the touch and providing 1250 watts RMS and 3000 watts peak power At typical listening levels the HGS 15 THX Ultra 2 and HGS 18 THX Ultra 2 produce less than 0 5 harmonic distortion with input signals extending to 20Hz and below Even at their maximum output level 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 subwoofer Do not use any harsh detergents or chemicals to clean the cabinet Abrasives
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