JVC KS-AX3002, KS-AX3004 User Manual
KS-AX3004
KS-AX3002
POWER AMPLIFIER: INSTRUCTIONS
AMPLIFICATEUR DE PUISSANCE: MANUEL D’INSTRUCTIONS
LVT1908-001A
[J/E/U/US]
ENGLISH
KS-AX3004 KS-AX3002
ank 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.
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.
POWER SUPPLY
25 A fuse
(To an accessory terminal)
0508MNMMDWTKC
EN, FR
© 2008 Victor Company of Japan, Limited
* Not provided
To metallic body or chassis
Remote turn-on line
CAUTIONS AND NOTES
This unit is designed to operate on 12 V DC, NEGATIVE ground electrical systems.
• This unit uses BTL (Balanced Transformerless) amplifi er circuitry, i.e., fl oating ground system,
so 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 leads 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 fi rmly
with insulating tape.
• Be sure to leave an appropriate space between the antenna (aerial) and the wires of this unit.
• When replacing the fuse, only use 25 A fuses.
• 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.
• This unit becomes very hot. Be careful not to touch the unit not only when using but after using.
DO NOT disassemble the unit since there are no user serviceable parts inside.
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.
Model No.
Serial No.
INSTALLATION
The following illustration shows a typical installation. However, you should make adjustments
corresponding to your specifi c car. If you have any questions or require information regarding
installation kits, consult your “JVC IN-CAR ENTERTAINMENT” car audio dealer or a company
supplying the kits.
Ignition switch
Car battery
JVC car receiver, etc.
Caution
To prevent short circuits while making connections, keep the battery’s negative terminal
disconnected.
1 Remote turn-on line (not provided)
a When you use a JVC car receiver with a remote lead, connect to the remote lead.
b When you use a car receiver 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 it on or off along with the on/off operation of the ignition switch.
2 Ground lead (not provided)
3 Power cord (not provided)
• When using a power cord, add a 25 A fuse near the battery as shown.
• Connect to the battery’s “ª” terminal only after all the other connections have been made.
The proper lead connected to each POWER terminal is as follows:
– + B and GND: AWG 8 to AWG 4 (The cross section is about 8 mm
– REM: AWG 18 to AWG 8 (The cross section is about 0.8 mm
• Use ring terminals (not provided) for secure connection.
If you have any questions regarding the thickness of the power cord, etc., consult your nearest
“JVC IN-CAR ENTERTAINMENT” car audio dealer.
2
to 21 mm2.)
2
to 8 mm2.)
Å
Onto the trunk floor
Under the front seat
Mount this unit on a fi rm surface, such as in the trunk 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.
ı
Provided screw
φ 4 × 20 mm (
13
/16 in.)
TERMINAL CONNECTIONS
When making terminal connections, properly fi x each terminal with the
provided screw by turning it as illustrated.
• Use ring terminals (not provided) for secure connection.
Notes
• Make sure the screw is fixed in place to prevent disconnections.
• Avoid over-tightening as it may cause the damage to the screw or its
head slot.
SPEAKER SYSTEMS
This amplifi er provides two types of speaker connections: Normal Mode and Bridge Mode
connections.
You can choose either type depending on the speakers equipped on your car.
Notes
• Be sure not to connect the “·” terminals of the speakers to a common point.
• If the same lead is used for both left/right or front/rear speaker wirings, this unit cannot be used.
Always use the independent leads for each speaker. In this case, redo the wirings.
• Use the speakers with an impedance of 2 Ω to 8 Ω (4 Ω to 8 Ω: when used in Bridge Mode).
• Use the speakers which have sufficient capacity to the unit.
Drilled hole
When mounting this unit, be sure to use the provided screws.
• If any other screws are used, there is a risk of loosening the unit or damaging the parts under
the car floor.
• Before drilling holes in the trunk to install the unit, make sure that there is a sufficient space
under the trunk so that you do not drill holes in the fuel tank, etc.
The proper lead connected to each SPEAKER OUTPUT terminal is AWG 18 to AWG 12 (The
cross section is about 0.8 mm
1
2
to 3.3 mm2).
SPEAKER CONNECTIONS
FRONT
FRONT
REAR
REAR
REAR
REAR
REAR
FRONTFRONT
FRONT
*
2
*
2
*
2
Connection varies depending on the number of the speakers used in your car. Select the
appropriate connection referring to the following diagrams.
Notes
• Securely connect all the parts. If the connections are loose, due to contact resistance etc., heat
will break out and may cause an accident.
• Run the connection leads under the car mats to prevent accidental disconnections.
a When your receiver is equipped with line output, connect the line output (through the
receiver) to the INPUT jacks on this unit.
b When your receiver is NOT equipped with line output, connect the provided speaker input
connector (through the receiver) to the HIGH INPUT terminal on this unit.
• Connect each lead of the speaker input connector to a speaker positive lead or chassis*
1
of
the receiver.
• Cover the terminals of unused speaker negative leads of the receiver with insulating tape to
prevent short circuits.
1
*
Example:
1
*
Black lead of the speaker input connector
Rear ground terminal
KS-AX3004
4-speaker system—Normal Mode
JVC car receiver, etc.
Line out
(Front)
Line out
(Rear)
Filter switches
FRONT
REAR
REAR
FRONTFRONT
FRONT
2
*
2
*
REAR
b Speaker input connector
Connector lead To Receiver
Å Gray "FRONT RIGHT (+)"
ı White "FRONT LEFT (+)"
Ç Black "RECEIVER GND"
Î Purple "REAR RIGHT (+)"
‰ Green "REAR LEFT (+)"
2-speaker system plus subwoofer—Bridge Mode
JVC car receiver, etc.
FRONT
Front speaker
(Left/Right)
Front right (+) lead
=
Front left (+) lead
=
Chassis*
=
Rear right (+) lead
=
Rear left (+) lead
=
REAR
REAR
Rear speaker (Left/Right)
1
RECEIVER
GND
KS-AX3002
2-speaker system—Normal Mode
JVC car receiver, etc.
Filter switch
Line out
b Speaker input connector
Connector lead To Receiver
Å White "LEFT (+)"
ı Black "RECEIVER GND"
Ç Gray "RIGHT (+)"
=
=
=
2-speaker system (2 amplifi ers)—Bridge Mode
b Speaker input connector
Connector lead To Receiver
Å White "LEFT (+)"
ı Black "RECEIVER GND"
Ç Gray "RIGHT (+)"
=
=
=
JVC car receiver, etc.
2
*
Left (+) lead
1
Chassis*
Right (+) lead
Left (+) lead
1
Chassis*
Left (+) lead
Right
speaker
JVC car receiver, etc.
Line out
Left
speaker
Line out
(Front)
Filter switches
b Speaker input connector
Connector lead To Receiver
Å Gray "FRONT RIGHT (+)"
ı White "FRONT LEFT (+)"
Ç Black "RECEIVER GND"
Î Purple "REAR RIGHT (+)"
‰ Green "REAR LEFT (+)"
2-speaker system—Bridge Mode
JVC car receiver, etc.
Line out
Line out
(Rear) or
Subwoofer
out
Front speaker
(Left/Right)
=
Front right (+) lead
=
Front left (+) lead
=
Chassis*
=
Rear right (+) lead
=
Rear left (+) lead
1
Subwoofer
Filter switches
b Speaker input connector
Connector lead To Receiver
Å White "LEFT (+)"
ı Black "RECEIVER GND"
Ç Gray "RIGHT (+)"
Subwoofer system—Bridge Mode
=
Right (+) lead
=
Chassis*
=
Right (+) lead
Left speaker
Right speaker
1
Filter switches
REAR
FRONT
b Speaker input connector
REAR
Å Gray "FRONT RIGHT (+)"
ı White "FRONT LEFT (+)"
Ç Black "RECEIVER GND"
Î Purple "REAR RIGHT (+)"
‰ Green "REAR LEFT (+)"
2
*
FRONT
Front speaker
FRONTFRONT
FRONT
REAR
Connector lead To Receiver
=
=
=
(Left/Right)
Left (+) lead
Chassis*
Right (+) lead
1
REAR
REAR
Filter switch
Line out (Rear) or
Subwoofer out
2
*
b Speaker input connector
JVC car receiver, etc.
Connector lead To Receiver
=
Å White "LEFT (+)"
ı Black "RECEIVER GND"
Ç Gray "RIGHT (+)"
2
RCA pin cords (not provided)
*
Left (+) lead
=
Chassis*
=
Right (+) lead
1
Subwoofer
2