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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." "Attention: Pour eviter
les chocs electriques, introduire lame la plus large de la fiche dans la borne correspondante de la prise et
pousser jusqu' au fond".

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.

All other servicing should be referred to qualified service personnel.

1

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

Summary of Contents for CHT-15

Page 1: ...CHT 15 Owner s Manual Audio Video Subwoofer System ...

Page 2: ...kcase 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 Protect...

Page 3: ...nstallation 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 continued Product Features and Controls Built in 300 watt RMS power amplifier Subwoofer Direct switchable crossover bypass ...

Page 4: ...et 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 signal is 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...

Page 5: ...his function can be disabled by leaving the switch in the on position High pass crossover switch This switch selects the frequency for the high pass crossover This crossover is functional on both line level 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 ...

Page 6: ...input when using the built in crossover Many home theater processors receivers Dolby Digital DTS THX have a subwoofer out jack that is internally filtered and designed to be used with a powered subwoofer In these installations you may bypass the internal crossover in either the processor or the Velodyne subwoofer In some installations it may be beneficial to have a steeper ultimate crossove slope ...

Page 7: ... a Y adapter available from most dealers to allow your processor s single sub line to be fed into both L R inputs The use of a Y adapter will also make the unit turn on at lower signal levels 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 ...

Page 8: ...g 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 which may result in a short possibly causing damage to your equipment Cables of extremely large size are typically not required Extremely large gauge wire may not properly fit in the binding posts resulting in a poor connection and possible s...

Page 9: ...id any magnetic interferance 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...

Page 10: ...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 turn the power off and then on again to reset the unit The following conditions require service by a qualified technician 1 The power cord has become damage...

Page 11: ... 15 Cabinet H W D 21 x 18 5 x 22 75 Frequency Response 23Hz 120Hz 3 dB High Pass Crossover 80Hz or 100Hz 6 dB octave slope Low Pass Crossover 40Hz 120Hz 12 dB octave 24 dB ultimate Amplifier Class A B 750 watts 300 watts RMS power Woofer 15 forward firing Magnet 70 oz Voice Coil 2 1 2 copper Inputs Line level speaker level Outputs Line level speaker level Warranty Two years parts labor Weight 83 l...

Page 12: ...enberg Home Theater Technology February 1995 It delivered room shaking bass and dramatically demonstrated the effectiveness of a single subwoofer placed to one side of the room Julian Hirsh Stereo Review January 1997 Printed on recycled paper 63 CHT15 RevA 15JUN01 F Series FSX 12 II BV SPL Series SPL 800 SPL 1000 SPL 1200 VLF Series VLF 810 VLF 1012 HGS Series HGS 10 HGS 12 HGS 15 HGS 18 Other Vel...

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