KS-AR9004
KS-AR9001D
POWER AMPLIFIER: INSTRUCTIONS
AMPLIFICADOR DE POTENCIA: MANUAL DE INSTRUCCIONES
0109MNMMDWTKC
EN, SP
© 2009 Victor Company of Japan, Limited
LVT1968-001A
[J, K]
TERMINAL CONNECTIONS
ENGLISH
When making the terminal connections…
1
Peel the insulating vinyl cover of a cord 7 mm (5/16 inch) to 10 mm
(7/16 inch) long and expose the inside conductor.
Loosen the hex screw in a terminal with a provided hex wrench
and insert the conductor into the terminal.Then fix the hex screw
again to secure the conductor.
2
Note
• The exposed conductor should be 7 mm (5/16 inch) to 10 mm (7/16 inch)
long.
– If shorter, it may cause a poor conductivity.
– If longer, it may cause a short circuit.
• Use a proper hex wrench for each terminal.
– 4 mm: +B terminal and GND terminal
– 3 mm: REM terminal and speaker terminals
Thank you for purchasing a JVC product. Please read all instructions carefully before operation,
to ensure your complete understanding and to obtain the best possible performance from the
unit.
KS-AR9001D is designed to be connected to subwoofers.
POWER SUPPLY
For safety....
•
Do not raise the volume level too much, as this will block outside sounds, making driving dangerous.
• Stop the car before performing any complicated operations.
CAUTIONS AND NOTES
* Not included with this
unit.
This unit is designed to operate on 12 V DC, NEGATIVE ground electrical systems.
• This unit uses BTL (Balanced Transformerless) amplifier circuitry, i.e., floating ground system,
so please comply with the following:
Do not connect the “·” terminals of the speakers to each other.
Do not connect the “·” terminals of the speakers to the metal body or chassis.
• Cover the unused terminals with insulating tape to prevent them from short circuiting.
• When an extension lead is used, it should be as thick and short as possible; connect it firmly
with insulating tape.
40 A Fuse
To metallic body or chassis
(To an accessory terminal)
• Be sure to leave an appropriate space between the antenna and the wires of this unit.
• For KS-AR9004: When replacing the fuse, only use a 40 A fuse.
For KS-AR9001D: When replacing the fuse, only use a 30 A fuse.
• Do not let pebbles, sand or metallic objects get inside the unit.
• To keep the heat dissipation mechanism running effectively, wipe the accumulated dust off
periodically.
• Listening to the tape, radio, CD or Digital Audio Player, etc. with the volume set at a high level
for a long period of time will exhaust the battery, while the engine is turned off or while the
engine is idling.
Remote turn-on line
JVC car receiver, etc.
Ignition switch
Car battery
CAUTION
To prevent short circuits while making connections, keep the battery’s negative terminal
disconnected.
• This unit becomes very hot. Be careful not to touch the unit not only when using but for a while
after using.
• When using a power cord (purchased separately), be sure to place the 40 A fuse near the
battery as shown.
• Connect the lead wire (power cord) through which power is supplied directly to the battery’s
“ª” terminal only after all the other connections have been made.
DO NOT disassemble the units since there are no user serviceable parts inside.
The proper lead wire connected to each POWER terminal is as follows.
• + B and GND: AWG 8 to AWG 4 (The cross section is about 8 mm2 to 21 mm2.)
• REM: AWG 18 to AWG 8 (The cross section is about 0.8 mm2 to 8 mm2.)
For Customer Use:
Enter below the Model No. and Serial No. which are located on the top or bottom of the
cabinet. Retain this information for future reference.
• If you have any questions regarding the thickness of the power cord, etc., consult your nearest
JVC car audio dealer.
Model No.
Serial No.
a When you use JVC car receiver with a remote lead, connect to the REM terminal on this
unit.
INSTALLATION
b When you connect a unit without a remote lead, connect to the accessory circuit of the car
which is activated by the ignition switch. In this case, noise may occur when the car receiver
is turned on or off. To avoid this noise, do not turn on or off the car receiver itself.You can turn
on or off the car receiver along with the on/off operation of the ignition switch.
If the POWER/PROTECTOR lamp lights in red, it indicates incorrect speaker wiring or
connections (see “TROUBLESHOOTING” on page 3). Make sure to correct speaker wiring and
other connections.
The following illustration shows a typical installation. However, you should make adjustments
corresponding to your specific car. If you have any questions or require information regarding
installation kits, consult your JVC car audio dealer or a company supplying the kits.
A Mount this unit on a firm surface, such as in the trunk room or under the front seat.
• Since heat is generated in the unit, do not mount it near inflammable objects. In addition,
mount it in an area that will not prevent the unit from dissipating the heat.
• Do not mount the unit in the places subject to heat: near a radiator, in a glove compartment
or in insulated areas such as under a car mat that will prevent the unit from dissipating heat.
• When mounting the unit under the front seat, make sure that adjusting the seat position will
not catch any wire of the unit.
B When mounting this unit, be sure to use the provided screws. If any other screws are used,
the unit may not be fixed firmly or parts inside the unit may be damaged.
• Before drilling holes in the trunk to install the unit, make sure to have a sufficient space
under the trunk so that you do not drill holes in the fuel tank, etc.
SPEAKER SYSTEMS
Make sure to comply with the following notes:
• Be sure not to connect the “·” terminals of the speakers to a common point.
• If the ground wire is common to both left/right and front/rear speaker wirings, this unit cannot be
used. Always use the independent lead wires for the speakers to be used. In this case, redo the
wirings.
• For KS-AR9004: Use the speakers with an impedance of 2 Ω to 8 Ω (4 Ω to 8 Ω when used in
Bridge Mode).
• To detach and rotate the Logo Plate, use the provided hex wrench (2.5 mm).
C When you use more than one KS-AR9000 series amplifier, you can pile them up to three with
provided brackets, screws and washers in two ways, X or Y. Be sure to mount the lowest
amplifier (1) primarily following B.
For KS-AR9001D: Use the speakers with an impedance of 1 Ω to 8 Ω.
• Use the speakers which have sufficient capacity to the unit.
The proper lead wire connected to each SPEAKER OUTPUT terminal is as follows.
AWG 18 to AWG 8 (The cross section is about 0.8 mm2 to 8 mm2.)
• Before piling amplifiers, attach the provided spacers to the “+” marks on the bottom of the
amplifiers 2 and 3.
• Before piling amplifiers as X, first make the connections for the power supply (see “POWER
SUPPLY”) and speakers (see “SPEAKER CONNECTIONS” on page 2).
For KS-AR9004: When you connect 4 speakers to the unit, down mixed signals (front and rear)
are emitted through the PRE OUT jacks.
For KS-AR9001D: Incoming signals are emitted through the PRE OUT jacks.
Screw—Dia. 4 mm (3/16 inch) ×
20 mm (13/16 inch)
A
B
C
Bracket
Bracket
X
Y
Spacer’s
bottom
Logo Plate
(detachable)
Bottom
Onto the trunk room floor
Spacer
Spacer
Under the front seat
Hex screw
Drilled hole
1
CONTROLS
TROUBLESHOOTING
For more details, consult your JVC car audio dealer.
The POWER/PROTECTOR lamp does not light.
• Change the fuses if the current one is blown.
• Connect the ground lead securely to a metal part of the car.
• Turn on the equipment connected to this unit.
• Use a relay if your system employs too many amplifiers.
• Confirm the battery voltage (11 V to 16 V).
Hex screw
Hex wrench (2.5 mm)
The POWER/PROTECTOR lamp lights in red and/or the unit heats up abnormally.
• Use the speakers of suitable impedance.
• Correct the speaker wirings if they are short-circuited.
• Make the speaker wirings away from the power cord to prevent DC offset error.
• Leave the unit turned off for a while to cool it down.
Control cover
To operate the following controls, remove the hex screws with a provided hex wrench
(2.5 mm) and detach the control cover. Attach it again after your operation.
No sound is heard.
KS-AR9004
• Confirm the connections for power supply (see “POWER SUPPLY” on page 1).
• Connect RCA pin cords to the INPUT jacks, or the speaker input connector to the HIGH INPUT
terminal.
Alternator noise is heard.
• Keep the power cords away from the RCA pin cords.
• Keep the RCA pin cords away from other electrical cables in the car.
• Connect the ground lead securely to a metal part of the car.
• Make sure the negative speaker leads do not touch the car chassis.
• Replace the plugs or use plugs with load resistors.
• Connect a bypass capacitor across the accessory switches (horn, fan, etc.).
KS-AR9001D
Noise is made when you connect the unit to an AM tuner.
• Move the speaker and power cords away from the antenna lead.
SPECIFICATIONS
Power Output
KS-AR9004:
• Normal Mode: 100 W RMS x 4 channels at 4 Ω and ≤ 1% THD + N
KS-AR9001D:
• Normal Mode: 250 W RMS x 1 channel at 4 Ω and ≤ 1% THD + N
Signal-to-Noise Ratio
KS-AR9004: 80 dBA (reference: 1 W into 4 Ω)
KS-AR9001D: 60 dBA (reference: 1 W into 4 Ω)
BASS BOOST controller
Turning this boosts the 45 Hz frequency within the range of 0 dB to +18 dB. Adjust the level
while listening to the sound. This controller is preset to MIN when the unit is shipped.
Input LEVEL controller
The input level can be adjusted with this controller when this unit is connected to other
source equipment. Adjust the level while listening to the sound. This controller is preset to
MIN when the unit is shipped.
Power Output
KS-AR9004:
• Normal Mode: 120 W RMS x 4 channels at 2 Ω and ≤ 1% THD + N
• Bridge Mode: 240 W RMS x 2 channels at 4 Ω and ≤ 1% THD + N
KS-AR9001D:
500 W RMS x 1 channel at 2 Ω and ≤ 1% THD + N
1 000 W RMS x 1 channel at 1 Ω and ≤ 1% THD + N
CROSSOVER frequency controller
Turning this adjusts the cutoff frequency within the range of 30 Hz to 500 Hz. Adjust the level
while listening to the sound. This controller is preset to 30 Hz when the unit is shipped.
CROSSOVER filter switch
OFF: Normally, set to this position. The switch is preset to this position when the unit is
shipped.
LPF: Set to this position when you want to turn on the LPF (Low-Pass Filter) switch (the
Low-Pass Filter transmits frequencies lower than the cutoff frequency).
HPF: Set to this position when you want to turn on the HPF (High-Pass Filter) switch (the
High-Pass Filter transmits frequencies higher than the cutoff frequency).
POWER/PROTECTOR lamp
The lamp lights in green while the unit is turned on. If the lamp does not light or lights in red
with the unit on, some trouble has occurred (see “TROUBLESHOOTING”).
Power indicator
Maximum Power Output
Load Impedance
KS-AR9004:
KS-AR9001D:
800 W (400 W x 2)
1 200 W
KS-AR9004:
4 Ω (2 Ω to 8 Ω allowance)
4 Ω (4 Ω to 8 Ω allowance) (Bridge Mode)
4 Ω (1 Ω to 8 Ω allowance)
KS-AR9001D:
KS-AR9004:
Frequency Response
5 Hz to 50 kHz*1 (+0, –3 dB)
*1 Subsonic filter cuts off extremely low frequency signals less than
20 Hz.
KS-AR9001D:
20 Hz to 300 Hz*2 (+0, –3 dB)
*2 Subsonic filter cuts off extremely low frequency signals. (The cutoff
frequency is adjustable within the range of 20 Hz to 50 Hz.)
Input Sensitivity/Impedance
Distortion
2 V/45 kΩ (0.3 V to 6 V, variable)
KS-AR9004:
KS-AR9001D:
Less than 0.04% (at 1 kHz)
Less than 0.1% (at 100 Hz)
The blue lamp illuminates while the unit is turned on.
LPF (Low-Pass Filter) controller
Adjust the cutoff frequency (the Low-Pass Filter transmits frequencies lower than the cutoff
frequency) within the range of 50 Hz to 300 Hz. Adjust the level while listening to the sound.
This controller is preset to 50 Hz when the unit is shipped.
PHASE switch
Select either normal (NOM) or reverse (REV), which reproduce a better sound. This switch is
preset to NOM when the unit is shipped.
Power Requirement
Grounding system
Dimensions (W×H×D)
Mass (approx.)
DC 14.4 V (11 V to 16 V allowance)
Negative ground
360 mm × 60 mm × 245 mm (14 3/16 inch × 2 3/8 inch × 9 11/16 inch)
KS-AR9004:
KS-AR9001D:
4.60 kg (10.15 lbs.)
4.92 kg (10.85 lbs.)
Accessories
Speaker input connector
SUBSONIC filter controller
Adjust the cutoff frequency (the subsonic filter rejects frequencies lower than the cutoff
frequency) within the range of 20 Hz to 50 Hz. This controller is preset to 20 Hz when the unit
is shipped.
KS-AR9004:
KS-AR9001D:
Screw—Dia. 4 mm (3/16 inch) × 20 mm (13/16 inch) × 4
4P × 2
4P × 1
Hex wrench
KS-AR9001D only
4 mm × 1
Wired remote control unit: RM-RK130 (purchased separately)
Using JVC’s wired remote control unit: RM-RK130 (purchased separately), you can adjust the
bass boost in your seat without adjusting the BASS BOOST controller on the amplifier (see
“CONTROLS”).
3 mm × 1
2.5 mm × 1
Spacer × 4
Note
Bracket × 2
Hex screw—M4 × 12 mm (1/2 inch) × 6
Design and specifications are subject to change without notice.
Set the BASS BOOST controller on the amplifier to MIN when you use RM-RK130.
A Mount RM-RK130 on a firm surface, such as under the dashboard.
B Connect RM-RK130 to the REMOTE terminal on the amplifier with the remote cord
provided for RM-RK130.
C RM-RK130 boosts the 45 Hz frequency within the range of 0 dB to +18 dB. Adjust the level
while listening to the sound.
Information for Users on Disposal of Old Equipment and Batteries
[European Union only]
• The POWER lamp lights in green while RM-RK130 is turned on.
These symbols indicate that the product and the battery with this symbol should
not be disposed as general household waste at its end-of-life.
If you wish to dispose of this product and the battery, please do so in accordance
with applicable national legislation or other rules in your country and municipality.
A
B
C
Under the
dashboard, etc.
Products
By disposing of this product correctly, you will help to conserve natural resources
POWER lamp
Drilled hole
and will help prevent potential negative effects on the environment and human
health.
Notice:
The sign Pb below the symbol for batteries indicates that this battery contains lead.
Battery
Dear Customer,
Remote cord
(provided for
RM-RK130)
This apparatus is in conformance with the valid European directives and standards regarding
BASS BOOST
controller
electromagnetic compatibility and electrical safety.
European representative of Victor Company of Japan, Limited is:
JVC Technical Services Europe GmbH
Postfach 10 05 04
Screw—Dia. 4 mm (3/16 inch) × 12 mm
(1/2 inch) (provided for RM-RK130)
RM-RK130
61145 Friedberg
Germany
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