Pioneer GM-X374 Посібник користувача

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BRIDGEABLE FOUR-CHANNEL

POWER AMPLIFIER

AMPLIFICADOR DE POTENCIA DE

CUATRO CANALES EN PUENTE

Owner's Manual

GM-X574

GM-X374

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.

San Lorenzo 1009 3er. Piso Desp. 302

Col. Del Valle Mexico, D.F. C.P. 03100

TEL: 55-5688-52-90

Printed in U.S.A.

Impreso en los EE.UU.

<HRD0224-A> ES

Before Using This Product

Thank you for purchasing this PIONEER

WARNING

product. Before attempting operation, be

sure to read this manual.

• Always use the special red battery and ground

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

Composition of Manual

the battery wire directly to the car battery positive

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

• Do not touch the amplifier with wet hands.

This manual applies to the GM-X574 and

Otherwise you may get an electric shock. Also, do

GM-X374. However, the illustrations show

not touch the amplifier when it is wet.

the GM-X574.

• For traffic safety and to maintain safe driving

conditions, keep the volume low enough so that

In case of trouble

you can still hear normal traffic sound.

• Check the connections of the power supply and

When the unit does not operate properly,

speakers if the fuse of the separately sold battery

contact your dealer or the nearest autho-

wire or the amplifier fuse blows. Detect the cause

rized PIONEER Service Station.

and solve the problem, then replace the fuse with

another one of the same size and rating.

• To prevent malfunction of the amplifier and

speakers, the protective circuit will cut the power

supply to the amplifier (sound will stop) when an

abnormal condition occurs. In such a case, switch

the power to the system OFF and check the

connection of the power supply and speakers.

Detect the cause and solve the problem.

• Contact the dealer if you cannot detect the cause.

• To prevent an electric shock or short-circuit

during connection and installation, be sure to

disconnect the negative (–) terminal of the battery

beforehand.

• Confirm that no parts are behind the panel when

drilling a hole for installation of the amplifier. Be

sure to protect all cables and important equipment

such as fuel lines, brake lines and the electrical

wiring from damage.

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.

• If you hear too much noise when using the

speaker input terminals, turn the gain

control counter-clockwise.

Input Select Switch

For two-channel input, slide this switch

to the left. For four-channel input, slide

this switch to the right.

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)

Very Low Frequency range

Subwoofer

Connect a subwoofer.

OFF (Center)

Full range

HPF (Right)

Low Frequency range to

Full range

Use if you want to cut the

High Frequency range

very low frequency range

because it is not necessary

for the speakers you are

using.