Velodyne CHT-8R User manual

USER’S MANUAL
C H T"'R SERIES
DSP-Controlled Home Theater Subwoofer
CHT-8R
CHT-10R
CHT-12R
CHT-15R
Velodyne

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Enjoy.
Thank you for choosing a Velodyne. Our passion for high
performance, low-distortion bass is the driving force behind
our worldwide reputation in audio and technical innovation.
We are pleased to bring the Velodyne sound experience
to your home.

IMPORTANT SAFETY INSTRUCTIONS
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
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 lightning flash with arrowhead symbol s 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 — Al safety and operating instructions should be read before the product is operated.
2. Retain Instructions — The safety and operating instructions should be retained for future reference.
3. Heed Wamings — All warnings on the product 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 product 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 product should be used only with a cart or stand recommended by
the manufacturer.
7. Wall or Ceiling Mounting — The product should be mounted to a wall or ceiling only as recommended
by the manufacturer.
8. Ventilation — The product should be situated so that its location or position does not interfere with its
proper ventilation. For example, the product 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 product should be situated away from heat sources such as radiators, heat registers,
stoves, or other products that produce heat.
10. Power Sources — The product should be connected to a power supply only of the type described in
the operating instructions or as marked on the product.
11. Grounding or Polarization — This product may be equipped with a polarized alternating-current line plug
(a plug having one blade wider than the other). This plug will fit into the power outlet only one way.
This is a safety feature. If you are unable to insert the plug fully into the outlet, try reversing the plug.
If the plug should still fail to fit, contact your electrician to replace your obsolete outlet. Do not defeat
the safety purpose of the polarized plug.
12. 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 product.
13. Cleaning — The product should be cleaned only as recommended by the manufacturer.
14. Nonuse Periods — The power cord of the product 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 product 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 product.
c. The product has been exposed to rain
d. The product does not appear to operate normally or exhibits a marked change in performance.
e. The product has been dropped or damaged.
17. Servicing — The user should not attempt to service the product beyond what is described in the
operating instructions. All other servicing should be referred to qualified service personnel
18. Lightning — For added protection for the product during a lightning storm or when it is left unattended
and unused for long periods of time, unplug it from the wall outlet.
19. Overloading — Do not overload wall outlets, extension cords or integral convenience receptacles as this
can result in a risk of fire or electric shock.
CAUTION: To prevent electrical shock, match wide blade of plug to wide slot, fully inserted.
WWW.VELODYNE.COM CHT-Q Series User’s Manual - i

TABLE OF CONTENTS
Congratulations. . .. .. ... s 1
Installation. . ... ... . 2
Rear Panel Connections .. ...... ..o i i 4
Rear Panel Connections — Detailed Explanation ............................. 6
Interconnect Cables . ......... ... i i 8
USagE - ittt e 9
Care of Your Subwoofer . ...... ... .o 13
Troubleshooting and Service. ... ... ... i s 13
SpPecifications . . ... ..o e, 14
Other Velodyne Products ... ... ...t 15
WWW.VELODYNE.COM CHT-Q Series User’s Manual - ii

CONGRATULATIONS
Congratulations on your purchase of a Velodyne Classic Home Theater (CHT™-R) subwoofer. This system
represents the state-of-the-art in low frequency reproduction. Read and follow the instructions below to insure
safe and proper system operation.
Note: 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 shock, 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. 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.
Product Features
DSP-controlled
Four selectable presets for customized listening mode
Night-mode setting
Mute control
Built-in 160 watt (RMS) power amplifier (CHT-8R)
Built-in 185 watt (RMS) power amplifier (CHT-10R)
Built-in 200 watt (RMS) power amplifier (CHT-12R)
Built-in 1000 watt (RMS) power amplifier (CHT-15R)
Adjustable (40 to 120 Hz) low-pass crossover with Subwoofer Direct setting
Speaker-level inputs and outputs
85 Hz high-pass crossover
Line-level inputs
Signal sensing auto turn on/off with bypass option
Variable volume control
Selectable phase control (0, 90, 180, or 270 degrees)
Dual staggered low-pass crossover; 12 dB/octave initial, 24 dB/octave ultimate
Anti-clipping circuit
Over excursion protection
Slot loaded design
Dual staggered low-pass crossover; 12 dB/octave initial, 24 dB/octave ultimate
Anti-clipping circuit
Over excursion protection
Slot loaded bass reflex design
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CHT-R Series User’s Manual - 1

INSTALLATION
Your new subwoofer system provides for a number of installation options. Read all the 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.
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2 - CHT-R Series User’s Manual WWW.VELODYNE.COM

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Figure 2. CHT-15R Rear Panel Connections
WWW.VELODYNE.COM CHT-R Series User’s Manual - 3

REAR PANEL CONNECTIONS
Figure 1 shows the connections on the rear panel of the CHT-8R, CHT-10R and CHT-12R.
Figure 2 shows the connections on the rear panel of the CHT-15R.
Following are brief descriptions of the connections described in Figure 1 and 2. More detail on these connections
can be found on the next page.
(1) LOW-PASS CROSSOVER
Use this knob to select the high-frequency range at which you wish to cut off the signal to the subwoofer.
When the knob is turned all the way to the left, the Subwoofer Direct feature is invoked and the subwoofer
plays all frequencies up to 200 Hz.
(2) VOLUME Control
This control allows you to balance the output from the subwoofer to the main speakers in your system.
This control should be set to achieve similar volume level from between both the main speakers and
subwoofer. When pressing volume up or down, the speed at which the power light blinks indicates
subwoofer volume - the faster the blinking, the louder the unit plays. After the volume is changed (up
or down), there will also be 2 sets of center LED blinks. Slower blinks represent tens and faster blinks
represent ones. If the LED blinks 3 times, pauses, then blinks 6 times, this means that the volume is set
at 36. The volume range is from 1 to 99.
Note: Volume is also controllable by using the supplied remote, when defaults are restored. The de-
fault is 35 out of 100.
WARNING: Some manufacturers preset their receivers with the Sub-Out channel signal at a
minimum level. It is very important to verify that your receiver Sub-Out channel is set to
the same output as your front right and left channels. Refer to your receiver manual for the
individual channel level adjustment procedure. If your receiver Sub-Out channel is set too low,
the subwoofer may appear to have a weak output, it may sound noisy or distorted, and the
Auto-On/Off feature may not work properly.
(3) AUTO ON/OFF Switch
The Auto-On/Off feature allows the subwoofer to turn itself off when not in use.
- With the Auto-On/Off switch set to ACTIVE, the subwoofer will monitor its input, and if there is no
signal present for approximately 15 minutes, it will shut down and go into standby mode. As soon
as a signal is present again, the subwoofer will immediately turn itself back on.
- With the Auto-On/Off switch set to INACTIVE, the auto-on/off feature is bypassed. The subwoofer
will remain on until the power switch is turned off.
WARNING: If the Sub-Out channel signal level from your receiver is too weak, this feature
will not operate properly. See Volume Control section (above).
4 - CHT-R Series User’s Manual WWW.VELODYNE.COM