
ACCESSORIES
• Bracket ...........................................................................................................................................................4
• Brackets screws...........................................................................................................................................................8
• Fuse(20A) ...........................................................................................................................................................1
• Insert power cable ................................................................................................................................................1
• Remote control ..........................................................................................................................................................1
• Screws ........................................................................................................................................................8
2 3
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CAUTION
• HALT USE IMMEDIATELY IF A PROBLEM APPEARS. Failure to do so may cause personal injury or damage
to the product. Return it to your authorized dealer or the nearest Service Center for repairing.
• HAVE THE WIRING AND INSTALLATION DONE BY EXPERTS. The wiring and installation of this unit requires
special technical skill and experience. To ensure safety, always contact the dealer where you purchased this
product to have the work done.
• USE SPECIFIED ACCESSORY PARTS AND INSTALL THEM SECURELY. Be sure to use only the specified
accessory parts. Use of other than designated parts may damage this unit internally or may not securely install
the unit in place. This may cause parts to become loose resulting in hazards or product failure.
• ARRANGE THE WIRING SO IT IS NOT CRIMPED OR PINCHED BY A SHARP METAL EDGE. Route the
cables and wiring away from moving parts (like the seat rails) or sharp or pointed edges. This will prevent
crimping and damage to the wiring. If wiring passes through a hole in metal, use a rubber grommet to prevent
the wire’s insulation from being cut by the metal edge of the hole.
• DO NOT INSTALL IN LOCATIONS WITH HIGH MOISTURE OR DUST. Avoid installing the unit in locations with
high incidence of moisture or dust. Moisture or dust that penetrates into this unit may result in product failure.
SERVICE CARE
IMPORTANT NOTICE
This Amplifier has been type tested and found to
comply with the limits for a Class B computing device in
accordance with the specifications in Subpart J of Part
15 of FCC Rules. This equipment generates and uses
radio frequency energy, and it must be installed and
used properly in accordance with the manufacturer's
instructions.
For Customers in other Countries
IMPORTANT NOTICE
Customers who purchase the product with which this
notice is packaged, and who make this purchase in
other countries , please contact your dealer for
regarding warranty coverage.
SERIAL NUMBER:
INSTALLATION DATE:
INSTALLATION TECHNICIAN:
PLACE OF PURCHASE:
◆IMPORTANT
Please record the serial number of your unit in the
space provided here and keep it as a permanent
record. The serial number plate is located on the rear
of the unit.
information
NOTE:
• For product improvement, specifications and design are subject to change without notice.
INSTALLATION (Fig. 1) & (Fig. 2)
CAUTION
◆Caution on connection terminals/parts
• Keep electrically conductive objects away from the unit’s terminals/parts (power terminals, fuses, speaker input
terminals, RCA connectors, etc.). Doing so prevents a possible short circuit and damage to the unit.
MOUNTING
1. Attach the included mounting brackets to the WS-903 with the supplied screws. (See to Fig. 1)
2. Once the brackets are mounted to the WS-903. Place the subwoofer in the desired location within the
vehicle. Before securing with screws, check to make sure all screws can affix to a structurally solid surface
while avoiding vehicle wiring, components, etc. (See Fig. 2)
Note: For securing the mounting brackets to the vehicle, it may be necessary to use longer screws (not
included) to accommodate carpet thickness, etc.
NOTE:
• To securelyconnectthegroundlead, use an alreadyinstalledscrewon themetalpart of thevehicle(marked
thisis a goodgroundby checkingcontinuitytothebattery(–) terminal.As muchas possibleconnectall equipment
samegroundpoint.Theseprocedureswill helpeliminatenoise.
SPECIFICATIONS
Sound
Power Output (RMS) 250 watts
Frequency Response 36~ 350Hz
Woofer
Diaphragm Size (Nominal) 23cm x 20cm(9" x 8") Subwoofer + 18cm x 5cm(7" x 2”) Passive subwoofer X 2
Diaphragm Material Polypropylene
Surround Rubber
Amplifier
Power Output (MAX) 1000 watts
Low Pass Crossover 50~ 150 Hz
Input Sensitivity 0.1V (RCA Input)
>2V (Speaker Level Input)
Accessories
Remote Knob Cable length: 5M
Adjustment Range: 0 to -20dB
1Mounting Bracket
2Bracket Screws
3Attachment Method Of Remote Bass Level Knob
3
Fig. 1 Fig. 2
1
2
1