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15

FOR YOUR RECORDS. . .

DATE PURCHASED  _______________________________________

DEALER  _________________________________________________

SERIAL #  ________________________________________________

*NOTE: Please complete and return your warranty card within ten (10) days or

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Website:  www.velodyne.com

INSTALLATION WORKSHEET

Date: _____________       MODEL/SERIAL# ________________

Installed by: _____________________ Phone: _______________

Volume Setting: ____________  Output Level (dB): _________

Low Pass X-Over: _________ Hz   Phase Pos.: 0˚  ________

                     180˚ ________

High Pass X-Over: 80 Hz _________       Sub Sonic: 15 Hz _________

100 Hz _________

35 Hz _________

Output Levels: (Speakers)

Left Front: _________ dB

Right Front: _________ dB

Left Rear: _________ dB

Right Rear: _________ dB

Center: _________ dB

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.

1.

Read Instructions -- All safety and operating instructions should be read before the subwoofer is operated.

2.

Retain Instructions -- The safety and operating instructions should be retained for future reference.

3.

Heed Warnings -- All warnings on the subwoofer and in the operating instructions should be adhered to.

4.

Follow Instructions -- All operating and use instructions should be followed.

5.

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.

6.

Carts and Stands -- The subwoofer should be 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
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
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.

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
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
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.

14.

Nonuse Periods -- The power cord of the subwoofer should be unplugged from the outlet when left unused for
a long period of time.

15.

Object and Liquid Entry -- Care should be taken so that objects do not fall and liquids are not spilled onto the
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.

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.

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
result in a risk of fire or electric shock.

19.

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.

20.

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.

IMPORTANT SAFETY INSTRUCTIONS

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

Summary of Contents for HGS-15 THX, HGS-18 THX

Page 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...

Page 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 ...

Page 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...

Page 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...

Page 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...

Page 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 ...

Page 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...

Page 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...

Page 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...

Page 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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