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BRIDGEABLE FOUR-CHANNEL

POWER AMPLIFIER

AMPLIFICADOR DE POTENCIA DE

CUATRO CANALES EN PUENTE

Owner's Manual

GM-6000F

Manual del Propietario

PIONEER CORPORATION

4-1, MEGURO 1-CHOME, MEGURO-KU, TOKYO 153-8654, JAPAN

PIONEER ELECTRONICS (USA) INC.

P.O. Box 1540, Long Beach, California 90801-1540, U.S.A.

TEL: (800) 421-1404

PIONEER EUROPE NV

Haven 1087, Keetberglaan 1, B-9120 Melsele, Belgium

TEL: (0) 3/570.05.11

PIONEER ELECTRONICS ASIACENTRE PTE. LTD.

253 Alexandra Road, #04-01, Singapore 159936

TEL: 65-6472-1111

PIONEER ELECTRONICS AUSTRALIA PTY. LTD.

178-184 Boundary Road, Braeside, Victoria 3195, Australia

TEL: (03) 9586-6300

Published by Pioneer Corporation.

PIONEER ELECTRONICS OF CANADA, INC.

300 Allstate Parkway, Markham, Ontario L3R OP2, Canada

TEL: (905) 479-4411

Publicado por Pioneer Corporation.

PIONEER ELECTRONICS DE MEXICO, S.A. de C.V.

Blvd.Manuel Avila Camacho 138 10 piso

Col.Lomas de Chapultepec, Mexico, D.F. 11000

TEL: 55-9178-4270

Printed in U.S.A.

Impreso en los EE.UU.

<HRD0265-A> ES

Before Using This Product

or use a single 4 Ω speaker per channel.

Thank you for purchasing this PIONEER

product. Before attempting operation, be

If you have any questions or concerns,

sure to read this manual.

please contact your local authorized

Pioneer dealer or call Pioneer customer

service.

In case of trouble

When the unit does not operate properly,

WARNING

contact your dealer or the nearest autho-

rized PIONEER Service Station.

• Always use the special red battery and ground

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

the battery wire directly to the car battery positive

CAUTION

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

• Do not touch the amplifier with wet hands.

Never replace the fuse with one of greater

Otherwise you may get an electric shock. Also, do

value or rating than the original fuse. Use

not touch the amplifier when it is wet.

of an improper fuse could result in over-

• For traffic safety and to maintain safe driving

heating and smoke and could cause dam-

conditions, keep the volume low enough so that

age to the product and injury including

you can still hear normal traffic sound.

burns.

• Check the connections of the power supply and

speakers if the fuse of the separately sold battery

wire or the amplifier fuse blows. Detect the cause

CAUTION

and solve the problem, then replace the fuse with

another one of the same size and rating.

Diagram A - Proper

Diagram B - Improper

• To prevent malfunction of the amplifier and

speakers, the protective circuit will cut the power

supply to the amplifier (sound will stop) when an

Ohm

abnormal condition occurs. In such a case, switch

Speaker

the power to the system OFF and check the

connection of the power supply and speakers.

Detect the cause and solve the problem.

Ohm

• Contact the dealer if you cannot detect the cause.

Speaker

• To prevent an electric shock or short-circuit

L+

R-

L+

R-

during connection and installation, be sure to

disconnect the negative (–) terminal of the battery

Pioneer

Amplifier

beforehand.

• Confirm that no parts are behind the panel when

4 Ohm Bridged Mode

2 Ohm Bridged Mode

drilling a hole for installation of the amplifier. Be

sure to protect all cables and important equipment

Do NOT install or use your Pioneer ampli-

such as fuel lines, brake lines and the electrical

fier by wiring speakers rated at 4 Ohm (or

wiring from damage.

lower) in parallel to achieve a 2 Ohm (or

lower) bridged mode (Diagram B).

Amplifier damage, smoke, and overheating

could result from improper bridging. The

amplifier surface could also become hot to

the touch and minor burns could result.

To properly install or use a bridged mode

for a two-channel amplifier and achieve a 4

Ω load, wire two 8 Ω speakers in parallel

with Left + and Right - (Diagram A) or use

a single 4 Ω speaker. For a four-channel

amplifier, follow the speaker output con-

nection diagram for bridging as shown on

the back of your amplifier, and wire two 8

Ω speakers in parallel to achieve a 4 Ω load

Setting the Unit

Gain Control

Adjusting the gain controls A and B will

help match the output of the car stereo to

the Pioneer amplifier. Normally, set the

gain controls to the "NORMAL" posi-

tion. If the output is 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 up, turn these controls

counter-clockwise.

• If you only use one input plug, set the gain

controls for speaker outputs A and 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 output level.

Input Select Switch

For two-channel input, slide this switch

to the left. For four-channel input, slide

this switch to the right.

Cut Off Frequency Control

If the LPF/HPF select switch is set to

LPF or HPF, you can select a cut off fre-

quency from 40 to 120 Hz.

Power Indicator

The power indicator lights when the

power is switched on.

BFC (Beat Frequency Control) Switch

If you hear a beat while listening to an

AM broadcast with your car stereo,

change the BFC switch using a small

standard tip screwdriver.

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)

* — 40 to 120 Hz

Subwoofer

Connect a subwoofer.

OFF (Center)

Full range

HPF (Right)

* 40 to 120 Hz —

Full range

Use if you want to cut the

very low frequency range*

because it is not necessary

for the speakers you are

using.

* See the "Cut Off Frequency Control" section.