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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: [email protected]

Product E-mail: [email protected]

Technical E-mail: [email protected]

HGS-15 THX Ultra 2

and

HGS-18 THX Ultra 2

Owner's Manual

High Gain Servo-Controlled

Audio/Video Subwoofer System

Printed on recycled paper.

"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 such a 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

————————————————————————————————

10-02, #63-620
Rev. B

Содержание HGS-15 THX, HGS-18 THX

Страница 1: ...woofer System Printed on recycled paper 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 such a tiny box Deep tight tuneful and loud enough to rattle pic...

Страница 2: ... situated on a bed sofa rug or similar surface that may block theventilationopenings orplacedinabuilt ininstallationsuchasabookcaseorcabinetthatmayimpede 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 ...

Страница 3: ...icht in einem Regal oder Schrank unterbringen worin die Luftzufuhr behindert wird 9 Wärme Subwoofer nicht in der Nähe von Wärmequellen wie Heizkörpern Wärmespeichern Öfen oder anderen wärmeerzeugenden Subwoofern aufstellen 10 Netzanschluß Subwoofer nur an eine der in der Bedienungsanleitung beschriebenen oder auf dem Subwoofer angegebenen Stromquellen anschließen 11 Netzkabelschutz Netzkabel so ve...

Страница 4: ...mmandés 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 gêne pas sa propre ventilation Par exemple ne pas placer l enceinte sur un lit un canapé sur la moquette ou sur toute surface similaire qui bloque les ouvertur...

Страница 5: ...celerometercontinuouslymonitors conemotions providinguswithafeedbacksignalfortheservocontrolcircuitry Thishigh gainsystemisdesignedtoimprovelinearityandreducedistortionapproximately30times 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 c...

Страница 6: ...ithin two magnetic gaps 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 result ...

Страница 7: ...efined 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 Whenmultipletonesareapplied intermodulationtonesareproduced usually as simple combinations of the input frequencies Ge...

Страница 8: ...ng the switch in the on position 9 responseandoutputlevelcanbe drastically influencedbyplacement dependingonthe acousticpropertiesofthelisteningroom Typically theoptimumlocationforasubwoofer istuckedawayinacornerofyourlisteningroom Thislocationwillusuallyofferthegreatest output levels and optimum low frequency extension The worst location for a subwoofer it typically far away from any walls and cl...

Страница 9: ...wesuggestsettingtheautoturnonswitchtotheon position Thisdeactivates the sensing circuitry allowing the remote to have total control of unit power NOTE Two AAA batteries are required included for operation If the remote control operatingrangedeteriorates pleasecheckbatteriesfordeterioration Donotleaveremote placed on heat generating items such as amplifiers 5 8 Speaker level connection Figure 2 sho...

Страница 10: ...s AMPLIFIER MAIN OUTPUTS RIGHT LEFT TOSATELLITESPEAKERS PRE AMP MAIN OUTPUTS MAIN INPUTS LEFT RIGHT RIGHT LEFT Figure 2 Installation using speaker level from amplifier inputs INTEGRATED AMP RECEIVER SATELLITE SPEAKERS MAIN OUTPUTS speaker level BALANCED INPUT LEFT COVERED UNDER ONE OR MORE OF THE FOLLOWING U S PATENTS 4 727 584 4 573 189 OTHER PATENTS PENDING 117 V 60 Hz 10A POWER EXTERNAL REMOTE ...

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