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Setting the Unit

ENGLISH

BFC (Beat Frequency

Gain Control

Control) Switch

Adjusting the gain controls A and B

If you hear a beat while

will help match the output of the car

listening to an AM broadcast

stereo to the Pioneer amplifier.

with your car stereo, change

Normally, set the gain controls to the

the BFC switch using a small

NORMAL position. If the output is

standard tip screwdriver.

low, even when the volume of the car

stereo is turned up, turn these controls

clockwise. If there is distortion when

the volume of the car stereo is turned

Power Indicator

up, turn these controls counter-clock-

wise.

The power indicator

• If you only use one input plug, set the

lights when the power is

gain controls for speaker outputs A and

switched on.

B to the same position.

• When using with an RCA equipped car

stereo (standard output of 500 mV), set

to the NORMAL position. When using

with an RCA equipped Pioneer car

stereo with max. output of 4 V or more,

adjust level to match the car stereo out-

put level.

Input Select Switch

For two-channel input, slide

this switch to the left. For

four-channel input, slide this

switch to the right.

LPF (Low-Pass Filter)/HPF (High-Pass Filter) Select Switch

Set the LPF/HPF select switch as follows according to the type of speaker that is connected

to the speaker output connector and the car stereo system:

LPF/HPF Select

Audio frequency range

Speaker

Remarks

Switch

to be output

Type

LPF (Left)

80 Hz and below with

Subwoofer

Connect a subwoofer.

–12 dB/oct. cut off slope

OFF (Center)

Full range

HPF (Right)

80 Hz and above with

Full range

Use if you want to cut the

–12 dB/oct. cut off slope

very low frequency range

because it is not necessary

for the speakers you are

using.

Connecting the Unit

CAUTION

• Disconnect the negative (–) terminal of the battery

• Make sure that wires will not interfere with mov-

to avoid the risk of short-circuit and damage to

ing parts of the vehicle, such as the gearshift,

the unit.

handbrake or seat sliding mechanism.

• Secure the wiring with cable clamps or adhesive

• Do not shorten any wires. Otherwise the protec-

tape. To protect the wiring, wrap adhesive tape

tion circuit may fail to work when it should.

around it where they lie against metal parts.

• Never feed power to other equipment by cutting

• Do not route wires where they will get hot, for

the insulation of the power supply wire to tap

example where the heater will blow over them. If

from the wire. The current capacity of the wire

the insulation heats up, it may become damaged,

will be exceeded, causing overheating.

resulting in a short-circuit through the vehicle

• Never replace the fuse with one of greater value

body.

or rating than the original fuse. Use of an improp-

er fuse could result in overheating and smoke and

could cause damage to the product and injury

including burns.

CAUTION:

To prevent damage and/or injury

• Do not ground the speaker wire directly or con-

• Speakers to be connected to the amplifier should

nect a negative (–) lead wire for several speakers.

conform with the standards listed below. If they

• This unit is for vehicles with a 12-volt battery and

do not conform, they may catch fire, emit smoke

negative grounding. Before installing it in a recre-

or become damaged. The speaker impedance must

be 2 Ω to 8 Ω. But in case of two-channel and

ational vehicle, truck or bus, check the battery

voltage.

other bridge connections, the speaker impedance

must be 4 Ω to 8 Ω.

• If the car stereo is kept on for a long time while

the engine is at rest or idling, the battery may go

• Install and route the separately sold battery wire

dead. Turn the car stereo off when the engine is at

as far away as possible from the speaker wires.

rest or idling.

Install and route the separately sold battery wire,

• If the system remote control wire of the amplifier

ground wire, speaker wires and the amplifier as

is connected to the power terminal through the

far away as possible from the antenna, antenna

ignition switch (12 V DC), the amplifier will

cable and tuner.

always be on when the ignition is on— regardless

• Cords for this product and those for other prod-

of whether the car stereo is on or off. Because of

ucts may be different colors even if they have the

this, the battery could go dead if the engine is at

same function. When connecting this product to

rest or idling.

another product, refer to the supplied manuals of

both products and connect cords that have the

same function.

Speaker Channel

Speaker Type

Power

Subwoofer

Nominal input: Min. 70 W

Four-channel

Other than subwoofer

Max. input: Min. 120 W

Subwoofer

Nominal input: Min. 200 W

Two-channel

Other than subwoofer

Max. input: Min. 300 W

Three-channel

Subwoofer

Nominal input: Min. 70 W

Speaker output A

Other than subwoofer

Max. input: Min. 120 W

Three-channel

Subwoofer

Nominal input: Min. 200 W

Speaker output B

Other than subwoofer

Max. input: Min. 300 W

Connection Diagram

Fuse (30 A)

Special red battery wire [RD-223] (sold separately)

Grommet

After making all other connections at the amplifier,

connect the battery wire terminal of the amplifier to

the positive (+) terminal of the battery.

Fuse (30 A)

Ground wire (black) [RD-223] (sold separately)

Connect to metal body or chassis.

Connecting wire with RCA

pin plugs (sold separately).

Car stereo with

RCA output jacks

External Output

If only one input plug is used,

do not connect anything to

RCA input jack B.

Amplifier with

RCA input

RCA input jacks

Input Select Switch

For two-channel input, slide this

switch to the left. For four-channel

Speaker input terminal

See the "Using the Speaker Input"

input, slide this switch to the right.

section.

Front side

RCA output jack

RCA input jack B

RCA input jack A

Connecting wire with RCA pin

plugs (sold separately).

Back side

Fuse (25 A) × 2

Speaker output terminal

System remote control wire (sold separately)

See the "Connecting the

Connect the male terminal of this wire to the system remote control

Speakers and Input Wires"

terminal of the car stereo (SYSTEM REMOTE CONTROL). The

section for speaker

female terminal can be connected to the auto-antenna relay control

connection instructions.

terminal. If the car stereo does not have a system remote control ter-

minal, connect the male terminal to the power terminal through the

ignition switch.

ENGLISH

Connecting the Power Terminal

WARNING

• Always use the special red battery and ground

Failure to securely fasten the battery wire to the ter-

wire [RD-223], which is sold separately. Connect

minal using the terminal screws could cause the ter-

the battery wire directly to the car battery positive

minal area to overheat and could result in damage

terminal (+) and the ground wire to the car body.

and injury including minor burns.

1. Pass the battery wire from the

Connecting the Speaker Output

engine compartment to the interior

Terminals

of the vehicle.

• After making all other connections to the

amplifier, connect the battery wire terminal of

1. Expose the end of the speaker wires

the amplifier to the positive (+) terminal of

using nippers or a cutter by about

the battery.

10 mm (3/8 inch) and twist.

Engine

Interior of

Fuse (30 A)

compart-

2. Attach lugs to speaker wire ends.

ment

the vehicle

Lugs not supplied.

• Use pliers, etc., to crimp lugs to wires.

Fuse (30 A)

3. Connect the speaker wires to the

Drill a 14 mm

Positive terminal

(1/2 inch) hole

speaker output terminals.

Insert the O-ring rubber

into the vehicle

• Fix the speaker wires securely with the termi-

grommet into the vehicle

body.

nal screws.

body.

Terminal screw

2. Twist the battery wire, ground wire

and system remote control wire.

3. Attach lugs to wire ends. Lugs not

Speaker

supplied.

output

• Use pliers, etc., to crimp lugs to wires.

terminal

4. Connect the wires to the terminal.

• Fix the wires securely with the terminal

Speaker wire

screws.

GND terminal

Power terminal

System remote

control terminal

System remote

control wire

Ground wire

Battery wire