CHO7030 10in Powered Subwoofer CHO7031

CHO7030 10in Powered Subwoofer CHO7031
CHO7030 10in Powered Subwoofer
CHO7031 12in Powered Subwoofer
CHO7032 15in Powered Subwoofer
Your CHOICE SELECT subwoofer delivers intense, deep bass sound output for pure, realistic sound. The
subwoofer has a built-in amplifier, so it will perform with any sound system. The subwoofer's own crossover
network sends bass-only signals to the subwoofer's built-in amplifier. Please follow the instructions in this booklet
to attain the best performance from your system.
Check your system carefully upon receipt. If it has been damaged in transit, report the damage immediately by
calling your Choice Select dealer and/or the trucking firm that delivered it. Observe all warnings and cautions.
To prevent fire or shock hazard, DO NOT EXPOSE this subwoofer system to rain or excessive moisture.
It is recommended that you not operate your speakers or subwoofer with the bass, treble and loudness controls
set to full boost. This will place undue strain on the electronics and speakers and could damage them.
Whenever changing cables, pulling plugs, etc. ALWAYS TURN OFF ALL EQUIPMENT including the subwoofer.
This prevents transients from entering the speakers and prevents electrical energy from reaching you. Keep all
connections out of the reach of children.
To avoid electrical shock, DO NOT OPEN THE SUBWOOFER! There are no user-serviceable parts inside.
The lightning flash symbol within a triangle 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 electrical shock to persons.
The exclamation point within a triangle is intended to alert the user
to the presence of important operating and maintenance (servicing)
instructions in the literature accompanying the product.
PLACEMENT Your Choice Select subwoofer should be placed on
the floor for optimum performance. The closer the subwoofer is
placed to the wall, the more pronounced the bass will become. The
maximum bass sound is achieved by placing the subwoofer in a
For optimum performance, keep all speaker wire and cables as short as possible.
POWER CORD: Plug the power cord into an AC wall outlet.
POWER SWITCH: The power switch turns the AC supply completely off or sets the subwoofer to the AUTO ON
operation. In AUTO ON mode, the subwoofer is in standby mode until it detects an audio signal input. The
subwoofer then turns on automatically. The subwoofer will automatically return to standby mode a few minutes
after the audio input signals cease.
POWER INDICATOR LED: The subwoofer has 1 LED indicator. The "POWER" indicator is located on the
amplifier on the rear of the cabinet. This LED is unlit when the AC power switch is OFF. It glows red when the
subwoofer is in standby mode and green when the subwoofer is ON.
FUSE 3.15 amp: This fuse is located directly above the AC power cord input and protects against internal and
external faults. If the POWER switch is ON and the power indicator LED is unlit, unplug the power cord from the
AC outlet and check the fuse. IMPORTANT: If the fuse is blown, replace it only with a fuse of the same type.
These terminals are for making connections using speaker wire.
See Connection Option #1
L, R LINE IN and SUB IN Jacks:
These jacks are for input connections using audio cables.
See Connection Option #2 or Option #3
LOW PASS FREQUENCY CONTROL: This adjusts the upper frequency limit for audio signals going to the
subwoofer amplifier. Use this control to adjust the system's tonal balance.
LEVEL CONTROL: This control balances the loudness of the subwoofer in relation to the front speakers and
compensates for room effects on the subwoofer's output.
PHASE SWITCH: This control adjusts the phase of the subwoofer's output in relation to the front speakers.
Listen carefully to the sound quality while playing a CD with low bass. Select the position of the switch that
produces the fullest deep bass without too much "boom". You may need to readjust the "Level" and "Low Pass
Frequency" controls after setting the "Phase" switch.
When making connections, be sure that the power switches of ALL components, including the subwoofer
are OFF.
POLARITY: All speakers in a system must be connected with the same polarity. Speaker wire is marked for
polarity, usually by color, so that you can identify which wire in the pair is which. Strip the insulation from speaker
wire ends to reveal the bare conductors before connecting to receiver, subwoofer or speaker terminals.
IMPORTANT: Always connect the red + terminal on the receiver to the red + terminal on the subwoofer, and the
black - terminal on the receiver to the black - terminal on the subwoofer. The same is true for connecting the
receiver outputs to the front speakers: red + to red +, black - to black -.
Connect speaker wires from the receiver's front left and right speaker outputs
to the subwoofer's Left and Right SPEAKER IN terminals as well as the Left and Right front speakers.
If your receiver does not have a subwoofer or mono output jack, use a dual audio cable to connect a LINE OUT
from the receiver to the subwoofer's LINE IN jack. No audio cables from the subwoofer's LINE OUT jacks are
needed in this set-up. The illustration below shows the recommended hook-up.
If you have a Subwoofer output jack on your receiver, connect it to the subwoofer's SUB IN jack using a single
audio cable. The illustration below shows the recommended hook-up.
Subwoofer initial control settings
• Set the LOW PASS FREQUENCY control to its center position.
• Turn the LEVEL control fully counterclockwise to MIN. You will reset this control after you make other
Adjusting the Subwoofer controls
• Play a program on your system. For the following adjustments, we recommend using the Dolby Surround
mode if available. If not, play a music CD. Adjust the receiver's volume control so that a comfortable sound
level is obtained from the system speakers.
• Increase the subwoofer's LEVEL control setting clockwise, until the bass reaches the desired level.
• Listen carefully to bass voices and, if necessary, adjust the LOW PASS FREQUENCY control so that the bass
voices sound natural.
• Adjust until the program has satisfying and natural sound quality on both bass voices and music.
Setting the Phase Switch
The PHASE switch controls the phase of the subwoofer's output in relation to the Front speakers. Listen carefully
to the sound quality while toggling the switch between the two positions. The position that produces the fullest
deep bass and the warmest bass and mid-bass sound is the correct one.
Subwoofer POWER indicator LED does not light, with Power Switch in the ON position
• Check to see if the AC outlet that the subwoofer is plugged into is "live" using a tester or a plug-in lamp.
• If the AC outlet is live, unplug the power cord from the AC outlet and check the fuse located directly above the
AC power cord input. If the fuse is blown, replace the fuse only with a fuse of the same type and rating. If this
does not fix the problem, take the subwoofer to your dealer for service. DO NOT TRY TO REMOVE THE
No sound from the subwoofer
• First, ensure that there is sound coming from the front speakers and that the receiver is working properly.
• Check the position of the LEVEL control on the subwoofer. If it is turned all the way counter-clockwise, there
may be no sound. Adjust the control until proper sound is achieved.
• The subwoofer only reproduces deep bass sound. If the program has no deep bass, the subwoofer will not
make any sound. Play a program with plenty of bass, such as jazz or rock music, or an action movie.
• If there still is no sound, take the subwoofer to you dealer for service. DO NOT TRY TO REMOVE THE
Driver Complement and
10in long throw woofer
in a front-firing
12in long throw woofer
in a front-firing
15in long throw woofer
in a front-firing
Frequency Response
Rated Sensitivity
Rated Power
This warranty remains in effect for one year from the date of purchase. Except as specified below, this warranty
covers all defects in material and workmanship. The following are not covered: Damage caused by accident,
misuse, abuse, product modification or neglect, damage occurring during shipment, damage from failure to follow
instructions contained in the owners instruction booklet, damage resulting from the performance of repairs by
someone not authorized by Choice Select, or any claims based on misrepresentations by the seller. This
warranty does not cover incidental or consequential damages. It does not cover the cost of removing or
reinstalling the unit. This warranty is void if the serial number has been removed or defaced.
This warranty gives you specific legal rights. You may also have other rights which vary from state to state. Some
states do not allow the exclusion or limitation of incidental or consequential damages or limitations on how long an
implied warranty lasts so the above may not apply to you.
Please call us at (800) 844-9555 Monday-Friday, 8am - 5pm. We may direct you to an authorized
dealer/technician or request that you return the subwoofer to the factory for repair. You will need to present the
original bill of sale to establish the date of purchase.
Please do not ship your product to us for repair without prior authorization. You are responsible for transportation
of your product and payment of any shipping charges. If the repairs are covered under warranty, we will pay the
return shipping charges.
Please read these instructions thoroughly before attempting to operate your Choice Select subwoofer. Be sure to
save this manual for future reference. Be sure to save your bill of sale, as it would be required for warranty
CAUTION Be sure that the correct plug is used on your AC outlet.
CLEANING Unplug the subwoofer from the wall outlet before cleaning. Do not use liquid cleaners or aerosol
cleaners. Clean with a damp cloth.
ATTACHMENTS The recommended location for your subwoofer is the floor. Do not place it on an unstable cart,
stand, tripod, bracket or table where it may fall, causing serious injury, and/or damage to the product.
VENTILATION Slots and openings in the subwoofer are provided for ventilation, to ensure reliable operation and
to protect it from overheating. These openings must not be blocked by placing the product on a sofa, rug, or other
similar surface. The subwoofer should not be placed in a built-in installation such as a bookcase, or rack.
POWER SOURCES The subwoofer should be operated only from the type of power source indicated on the
marking label. If you are not sure of the power supply in your home, consult and authorized dealer or local power
GROUND OR POLARIZATION The subwoofer is equipped with a polarized alternating-current line plug with a
ground pin. 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, the outlet should be replaced by an electrician. Do not remove the ground pin. Doing
so will void your warranty.
LIGHTNING For added protection for the subwoofer during a lightning storm, or when left unattended and
unused for long periods of time, unplug the device from the wall outlet and disconnect the antenna or cable
system. Additionally, a surge protector can help prevent damage. Consult your local dealer.
OVERLOADING Do not overload wall outlets, extension cords, or integral convenience receptacles as this can
result in a risk of fire or electric shock.
OBJECT AND LIQUID ENTRY Never push objects of any kind into this device through openings, as they may
touch dangerous voltage points or shout-out parts that could result in fire or electric shock. Never spill liquid of
any kind on the subwoofer.
SERVICING Do not attempt to service the subwoofer yourself, as opening or removing covers may expose you
to dangerous voltage or other hazards. Refer all servicing to qualified personnel.
DAMAGE REQUIRING SERVICE Unplug the subwoofer from the wall outlet and refer servicing to qualified
service personnel under the following conditions:
A. When the power supply cord or plug is damaged.
B. If liquid has been spilled or objects have fallen into the device.
C. If the device has been exposed to rain or water.
D. If the device does not operate normally by following the operating instructions. Adjust only those controls that
are covered by the operating instructions.
E. If the device has been dropped or damaged in any way.
F. If the device exhibits a distinct change in performance indicating a need for service.
REPLACEMENT PARTS If replacement parts are required, be sure the service technician has used replacement
parts specified by Choice Select or have the same characteristics as the original part. Unauthorized substitutions
may result in fire, electric shock or other hazards, and void your warranty.
HEAT The subwoofer should be located away from heat sources such as radiators, heat supplies, stoves or other
devices (including amplifiers) that produce heat.
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