KENWOOD KAC6402 - Owner's Manual Immediate Download

Take the time to read through this instruction manual.

Familiarity with installation and operation procedures will help

you obtain the best performance from your new power amplifier.

For your records

Record the serial number, found on the back of the unit, in the spaces

designated on the warranty card, and in the space provided below.

Refer to the model and serial numbers whenever you call upon your

KENWOOD dealer for information or service on the product.

Model KAC-6402

Serial number

KAC-6402

4/3/2 CHANNEL POWER AMPLIFIER

7 page 2-13

INSTRUCTION MANUAL

AMPLIFICATEUR DE PUISSANCE 4/3/2 CANAUX

7 page 14-25

MODE D'EMPLOI

AMPLIFICADOR DE POTENCIA DE 4/3/2 CANALES

7 página 26-37

MANUAL DE INSTRUCCIONES

2 English

Safety precautions

WARNING

To prevent injury or fire, take the following

precautions:

· When extending the ignition, battery, or ground

wires, make sure to use automotive-grade wires

or other wires with a 5 mm² (AWG 10) or more to

prevent wire deterioration and damage to the wire

coating.

· To prevent a short circuit, never put or leave any

metallic objects (such as coins or metal tools)

inside the unit.

· If the unit starts to emit smoke or strange smells,

turn off the power immediately and consult your

Kenwood dealer.

· Do not touch the unit during use because the

surface of the unit becomes hot and may cause

burns if touched.

FCC WARNING

This equipment may generate or use radio

frequency energy. Changes or modifications to

this equipment may cause harmful interference

unless the modifications are expressly approved

in the instruction manual. The user could lose

the authority to operate this equipment if an

unauthorized change or modification is made.

CAUTION

To prevent damage to the machine, take the

following precautions:

· Be sure the unit is connected to a 12V DC power

supply with a negative ground connection.

· Do not open the top or bottom covers of the unit.

· Do not install the unit in a spot exposed to direct

sunlight or excessive heat or humidity. Also avoid

places with too much dust or the possibility of

water splashing.

· When replacing a fuse, only use a new one with

the prescribed rating. Using a fuse with the wrong

rating may cause your unit to malfunction.

· To prevent a short circuit when replacing a fuse,

first disconnect the wiring harness.

NOTE

· If you experience problems during installation,

consult your Kenwood dealer.

· If the unit does not seem to be working right,

consult your Kenwood dealer.

This Product is not installed by the manufacturer of a

vehicle on the production line, nor by the professional

importer of a vehicle into an EU Member State.

Cleaning the unit

If the front panel gets dirty, turn off the power and

wipe the panel with a dry silicon cloth or soft cloth.

CAUTION

Do not wipe the panel with a hard cloth or a cloth

dampened by volatile solvents such as paint thinner

and alcohol. They can scratch the surface of the

panel and/or cause the indicator letters to peel off.

To prevent battery rise

When the unit is used in the ACC ON position

without turning the engine ON, it depletes the

battery. Use it after starting the engine.

Protection function

There is a Protection function installed in the unit

to protect the unit and speakers from various

problems. When Protection operates, the indicator

informs you of the condition. (Refer to page 5)

Accessories

Part name

Number of

Items

External View

Self-tapping screws

(ø4 × 16 mm)

Terminal cover (Power

terminal)

Speaker level input

cable

English

Installation

CAUTION

· Do not install in the below locations;

(Unstable location, In a location that interferes with driving, In a location that gets wet, In a dusty location,

In a place that gets hot, In a place that gets direct sunlight, In a location that gets hit by hot air)

· Do not install the unit under the carpet. Otherwise heat build-up occurs and the unit may be damaged.

· Install this unit in a location which allows heat to easily dissipate.

Once installed, do not place any object on top of the unit.

· The surface temperature of the amplifier will become hot during use. Install the amplifier in a place where

people, resins, and other substances that are sensitive to heat will not come into contact with it.

· When making a hole under a seat, inside the trunk, or somewhere else in the vehicle, check that there

is nothing hazardous on the opposite side such as a gasoline tank, brake pipe, or wiring harness, and be

careful not to cause scratches or other damage.

· Do not install near the dashboard, rear tray, or air bag safety parts.

· The installation to the vehicle should securely fasten the unit to a place in which it will not obstruct

driving. If the unit comes off due to a shock and hits a person or safety part, it may cause injury or an

accident.

· After installing the unit, check to make sure that electrical equipment such as the brake lamps, turn signal

lamps and windshield wipers operate normally.

Installation board, etc.

(thickness : 15 mm or more)

Self-tapping screw

(ø4 × 16 mm)

330 mm

231 mm

Ø4.6

232

227

242

4 English

Controls / Indicator

(W)

1 FILTER switch (A.ch/B.ch)

This switch allows to apply high-pass or low-pass

filtering to the speaker outputs.

· HPF (High-Pass Filter) position:

The filter outputs the band of higher frequencies

than the frequency set with the FILTER

FREQUENCY control.

· OFF position:

The entire bandwidth is output without filtering.

· LPF (Low-Pass Filter) position:

The filter outputs the band of lower frequencies

than the frequency set with the FILTER

FREQUENCY control.

2 OPERATION switch (A.ch/B.ch)

This switch is used to select the operation mode

of the amplifier.

· STEREO position:

The amplifier can be used as a stereo amplifier.

· MONO (Lch) position:

Amplifies the signal input from the left side

only. Set to this position and make bridged

connections to use as a high-power monaural

amplifier. (The input right signal is not output.)

3 INPUT SELECTOR switch

This switch selects the input method of

the signals to be amplified by amplifiers A

and B.

· A B position:

Amplifies both of the signals input to

amplifiers A and B.

· A position:

Amplifies only signal input amplifier A with

both amplifiers A and B.

4 FILTER FREQUENCY control (A.ch/B.ch)

Sets the cutoff frequency when the FILTER switch

is set to LPF or HPF.

5 INPUT SENSITIVITY control (A.ch/B.ch)

Set this control according to the pre-output level

of the center unit connected with this unit, or

to the maximum power output of the genuine-

accessory car stereo.

The sensitivities of amplifiers A and B can be

adjusted independently regardless of the

position of the input selector switch.

Use the diagram on the right as a guide.

NOTE

For the pre-output level or the maximum power

output, refer to the <Specifications> in the

instruction manual of the center unit.

English

6 Power indicator

When the power is turned on, the Power

indicator lights.

If the Power indicator does not light when the

power is turned on, the protection function

may be activated. Check whether there is any

indication of trouble.

The protection function is activated in

the following situations:

This unit is equipped with a protection function

for protecting this unit and your speakers from

various accidents or problems that can occur.

When the protection function is triggered, the

Power indicator goes off and the amplifier stops

operating.

· When a speaker wire may be short-circuited.

· When a speaker output contacts ground.

· When the unit malfunctions and a DC signal is

sent to the speaker output.

· When the internal temperature is high and unit

won't operate.

· When a ground wire of the center unit

(cassette receiver, CD receiver, etc.) or this unit

is not connected to a metal part serving as

an electrical ground passing electricity to the

battery's negative - terminal.