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How-to-guides: Amplifier wiring diagrams for power and speakers  

Amplifier wiring diagrams for connecting audio RCA  and speaker level inputs

Car stereo amplifier audio input diagrams

 

  • Some units may not have High level Input capabilities

  • Side view of amplifier audio input terminal view, may vary from model to model.

 

Amplifier

Index               

 

Introduction

 

Installation

 

Power distribution

 

Audio input

 

Audio out

 

Amplifier power distribution diagrams

 

Amplifier audio input diagrams

 

 

Amplifier audio and speaker input diagrams

Whether your wiring your amplifier with preamp out  input or using the radio amplified speaker output to drive your amplifier.

Wiring it improperly can not only effect the sound quality but may even damage the amplifier.

So lets see how it is done!

 

 2 Channel amplifier audio input wiring

 

Low level input

Connect these RCA low level plugs coming from radio to these inputs of the amplifier:

Ch1 or channel  1 ( left )

Ch2 or Channel 2 ( right )

 

If your radio does not have RCA plugs out:

You will need to use the “high-level input” wires at right.

Connect to the speaker wires coming out of radio.

 

 

4 Channel amplifier audio input wiring

A

Low level out may be used for adding another amplifier

Some units may not have this connector available, depending on model.

B

Low level input

Connect these RCA low level plugs coming from radio, to these inputs of the amplifier:

Ch1 or channel  1  ( left front )

Ch2 or Channel 2 ( right front )

Ch3 or Channel 3 ( right rear )

Ch4 or Channel 4 ( right rear )

If your radio does not have RCA plugs out:

You will need to use the “high-level input” wires at right.

Connect to the speaker wires coming out of radio

 

 

 

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