JVC KS-AR8004D User Manual

LVT1813-001A

KS-AR8004D / KS-AR8002D

POWER AMPLIFIER: INSTRUCTIONS

[J]

AMPLIFICATEUR DE PUISSANCE: MANUEL D’INSTRUCTIONS

ENGLISH

Thank you for purchasing an ARSENAL 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.

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 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 ﬁ rmly with insulating tape.

• Be sure to leave an appropriate space between the antenna and the wires of this unit.

• When replacing the fuse, use a 30 A fuse for KS-AR8004D or a 25 A fuse for KS-AR8002D.

• 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 for a while after using.

DO NOT disassemble the units 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.

Serial No.Model 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 car audio dealer or a company supplying the kits.

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 inﬂ ammable 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.

Under the front seat Onto the trunk ﬂ oor

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 parts inside it.

• Before drilling holes in the trunk to install the unit, make sure that there is a sufﬁ cient space under the trunk so that you do not drill holes in the fuel tank, etc.

• To detach and rotate the Logo Plate, use the provided hex wrench (3 mm).

When you use more than one KS-AR8000 series ampliﬁ er, you can pile up to three of

them using the provided brackets and hex screws in two ways, X or Y.

1 Attach the provided spacers to the bottom of the ampliﬁ er (2 and 3).

Spacer's bottom

Bottom

2 Fix the ampliﬁ ers on both sides with the brackets (I) as illustrated.

• Be sure to mount the lowest ampliﬁ er (1) as illustrated on

• Before piling ampliﬁ ers as X, ﬁ rst make the connections for the power supply (see “POWER SUPPLY” below) and speakers (see “SPEAKER CONNECTIONS” on page 2).

Bracket (I)

Spacer

Bracket (L)

Side of the unit

Bracket (I)

Bracket (L)

Spacer

POWER SUPPLY

*Not included with this unit.

To metallic body or chassis

Fuse

Car battery

CAUTION

To prevent short circuits while making connections, keep the battery’s negative terminal disconnected.

1 Remote turn-on line (not included with this unit) a When you use a JVC car receiver with a remote lead, connect to the remote lead. 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.

2 Ground lead (not included with this unit) 3 Power cord (not included with this unit)

• When using a power cord, be sure to add the appropriate fuse near the battery as shown.

– For KS-AR8004D: 40 A – For KS-AR8002D: 30 A

• Connect to the battery’s “ª” terminal only after all the other connections have been made.

Note

If the Status lamp (see “CONTROLS” on page 3) lights in red, it indicates incorrect speaker wiring or connections. In this case, see “TROUBLESHOOTING” on page 3. Be sure to correct the speaker wiring and other connections.

(To an accessory terminal)

Ignition switch

Remote turn-on line

JVC car receiver, etc.

TERMINAL CONNECTIONS

Screw (Dia. 3/16 inch (4 mm) × 13/16 inch (20 mm))

Bracket (L)

Logo Plate (detachable)

Bracket (L)

Hex Screw (M4 × 7/16 inch (10 mm))

Drilled hole

The appropriate wire gauge for each terminal is as follows.

• POWER terminals: – + 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

• SPEAKER OUTPUT terminals: – AWG 18 to AWG 8 (The cross section is about 0.8 mm

If you have any questions regarding the thickness of the power cord, etc., consult your nearest JVC car audio dealer.

to 8 mm2.)

to 21 mm2.)

to 8 mm2.)

1 Peel off the insulating vinyl cover of a lead to expose the conductor

inside.

• The exposed conductor should be 5/16 inch (7 mm) to 7/16 inch (10 mm) long.

– If shorter, it may cause poor conductivity. – If longer, it may cause a short circuit.

2 Loosen the hex screw in a terminal with the provided hex wrench

and insert the conductor into the terminal.

• Use the appropriate hex wrench for each terminal.

– 4 mm: +B and GND terminals – 3 mm: REM and SPEAKER OUTPUT terminals

3 Fix the hex screw again to secure the conductor.

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 same lead is used for both left/right or front/rear speaker wirings, this unit cannot be used. Always use independent leads for each speaker. In this case, redo the wiring.

• Use speakers with an impedance of 2 Ω to 8 Ω (4 Ω to 8 Ω: when used in Bridge Mode).

• Use speakers which have sufﬁ cient capacity for the unit.

SPEAKER CONNECTIONS

Connection varies depending on the number of the speakers used in your car. Select the appropriate connection referring to the following diagrams.

Before connecting:

• Securely connect all the parts. If the connections are loose, due to contact resistance etc., heat will break out and may cause an accident. Secure and cover the cords with insulating tape and run them under the car mats.

For KS-AR8004D: When you connect 4 speakers to the unit, down mixed signals (front and rear) are emitted through the PRE OUT jacks. For KS-AR8002D: Incoming signals are emitted through the PRE OUT jacks.

Connect the Line Output from the receiver to the INPUT jacks on this unit using RCA pin cords (not included with this unit).

• Be sure to adjust the CROSSOVER ﬁ lter switch as illustrated on the following diagrams. (See also “CONTROLS” on page 3.)

Note

Do not adjust the CROSSOVER ﬁ lter switch while the unit is turned on.

KS-AR8004D

4-speaker system

Line Out (Rear)

JVC car receiver, etc.

CROSSOVER

ﬁ lter switch

Control panel

2-speaker system plus subwoofer—Bridge Mode*

JVC car receiver, etc.

CROSSOVER ﬁ lter switch

Line Out

(Front)

Line Out (Rear) or Subwoofer Out

Line Out

(Front)

KS-AR8002D

2-speaker system

Front Speaker

(left/right)

Front Speaker

(left/right)

Rear Speaker

(left/right)

Subwoofer

JVC car receiver, etc.

CROSSOVER

ﬁ lter switch

Control panel

2-speaker system (2 ampliﬁ ers)—Bridge Mode*

JVC car receiver, etc.

Line Out

Right speakerLeft speaker

Right speaker

Left speaker

Control panel

2-speaker system—Bridge Mode*

JVC car receiver, etc.

CROSSOVER

ﬁ lter switch

Control panel

Line Out

4-speaker system plus subwoofer (PRE OUT)

Down mixed signals are emitted through the PRE OUT jacks.

Front Speaker

(left/right)

Control panel

CROSSOVER ﬁ lter switch

Control panel

Subwoofer system (5.1channel receiver)—Bridge Mode*

Subwoofer Out

JVC car receiver, etc.

CROSSOVER

ﬁ lter switch

Control panel

Subwoofer

2-speaker system plus subwoofer (PRE OUT)

JVC car receiver, etc.

CROSSOVER

ﬁ lter switch

Control panel

Line Out (Rear)

Line Out (Front)

Front Speaker

(left/right)

ARSENAL ampliﬁ er:

KS-AR8001D

Rear Speaker

(left/right)

Subwoofer System

*1 RCA pin cords (not included with this unit)

Bridge Mode: Be sure to connect the line output from the receiver to the left (L/MONO) jack on this unit.

JVC car receiver, etc.

CROSSOVER

ﬁ lter switch

Control panel

Line Out

ARSENAL ampliﬁ er:

KS-AR8001D

Right speakerLeft speaker

Subwoofer System

+ 4 hidden pages