Velodyne Acoustics CHT-8R, CHT-10R, CHT-12R User Manual
TM
CHT-8R
TM
CHT-10R
TM
CHT-12R
and
TM
CHT-15R
User's Manual
DSP-Controlled Home Theater Subwoofer
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 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.
18. The apparatus shall not be exposed to dripping or splashing water and that no objects filled with liquids,
such as vases be placed on the apparatus.
19. The disconnect device (the appliance inlet) shall remain readily operable (easily assessible).
All other servicing should be referred to qualified service personnel.
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Congratulations!
Congratulations on your purchase of a V elodyne Classic Home Theater
(CHT -R) subwoof er. 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.
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. 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.
Product Features and Controls
• DSP-controlled
• 4 selectable presets for customized listening mode
• Night-mode setting
• Mute control
• Built-in 160 watt (RMS) power amplifier (CHT-8R)
• Built-in 175 watt (RMS) power amplifier (CHT-10R)
• Built-in 200 watt (RMS) power amplifier (CHT-12R)
• Built-in 600 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
• Variab le volume control
• Selectable phase control (0, 90, 180, or 270 degrees)
• Dual staggered low-pass crossover; 12 dB/octave initial, 24
dB/octave ultimate
continued. . .
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• Anti-clipping circuit
• Over excursion protection
• Slot loaded design
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.
80 Hz
LOW-PASS
CROSSOVER
1
2
3
4
5
6
7
8
DIRECT
VOLUME
AUTO ON/OFF
OUTPUT
INPUT
HIGH-PASS
CROSSOVER
SPEAKER LEVEL INPUT
SPEAKER LEVEL OUTPUT
40 Hz
UP
DOWN
ACTIVE
INACTIVE
R
L
LFE IN
100 Hz
80 Hz
LEFTRIGHT
CHT-R Series
SERIAL #
VELODYNE ACOUSTICS, INC.
WARNING: TO REDUCE THE RISK OF FIRE
OR ELECTRIC SHOCK. DO NOT EXPOSE
THIS APPLIANCE TO RAIN OR MOISTURE.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
AVIS:
DOUBLE INSULATION - WHEN SERVICING USE ONLY IDENTICAL REPLACEMENT PARTS
POWER
ON
OFF
230V~
50Hz
F 1A L
Figure 1. CHT-R Rear Panel Connections
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Rear Panel Connections
Figure 1 shows the connections on the rear panel of the CHT-R.
Following are brief descriptions of the connections described in Figure
1. More detail on these connections can be found on the next page.
(1) LOW -P ASS 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.
Note: Volume is also controllable by using the supplied remote.
(3 ) AUTO ON/OFF Switch
Use this switch to select between auto-on (active) and constant
on (inactive) operation.
(4 ) LINE OUTPUT
Connect these jacks to the LINE IN preamp input to use the CHT-R’s
internal high pass crossover. See below for a more detailed explanation
of this crossover.
(5 ) LINE INPUT/LFE Input
Connect these jacks to the LINE OUT preamp output, LFE
output, or subwoofer output jacks of your receiver/processor. If
using the LFE output from your receiver or processor, plug the
single cable into the “L” – LFE input or, for more signal, use a “Y”
connector and feed the signal into both “R” and “L” inputs.
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continued. . .
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(6 ) HIGH PASS CR OSSOVER Switch
This switch selects the frequency for the high pass crossover.
This crossover is functional on both line and speaker-level
outputs. Smaller speakers with limited low frequency output may
perform better using the higher 100 Hz setting that will reduce the
low frequencies sent to them. Larger speakers with greater low
frequency output may be able to handle the 80 Hz setting without
strain.
(7 ) SPEAKER LEVEL INPUT T erminals
Connect these input terminals to the speaker output terminals
of your amplifier or receiver. If you use this method of
connection, when you go to the receiver speaker set up menu,
make sure you select the large speaker option.
(8 ) SPEAKER LEVEL OUTPUT T erminals
Sends a crossed-over speaker-level signal to the front speakers.
See below for a more detailed e xplanation of this crossov er .
Rear Panel Connections – Detailed Explanation
Your new subwoofer is equipped with both speaker-level and linelevel inputs. Use the RCA/Phono type “INPUT” jacks when connecting your subwoofer to a pre-amp, signal processor, or line-level
crossover. The “SPEAKER LEVEL INPUT” jacks connect directly
to the speaker outputs of an integrated amplifier or receiver. Your
amplifier section will notice no additional loading effects when you
use these inputs because of their high impedance.
Note:
Do not use both the RCA/Phono “INPUT” connections and “SPEAKER
LEVEL INPUT” connections simultaneously.
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 begin rolling off abov e the
frequency you set this control to.
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