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Placement

True subwoofers operate at extremely 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. 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 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
channel. Typically, a 

minimum distance of 2 to 3 feet from your TV to

the subwoofer will be adequate to avoid 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 result in damaging the insulation or wire.

Although measures have been taken to shield the magnetic structure of
your subwoofer, Velodyne does not recommend that the subwoofer be
placed directly above, below, behind, or next to your TV or video
monitor.  Distortion of the picture may still occur due to stray magnetic
fields.

Care of your subwoofer

Do  not  use  any  harsh  detergents 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 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

continued. . .

8

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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