Table Of Contents

Introduction

Thank you for choosing Boston Acoustics® and congratulations on your purchase of the Boston GT® Amplifier. If you own other Boston products, the outstanding audio performance and ease-of-use of the GT Amplifier should come as no surprise. If you’re new to Boston, welcome – you’ve made a great choice.

Table of Contents

Parts list

3

Specifications

 

Connections

4

Top panel removal / installation

 

Controls

5

Status LEDs

 

Installation - General

6

Before you install

 

Battery and charging system

 

Wire routing

 

Mounting location

 

Passenger & trunk compartment mounting

 

Multi-Position Mounting Feet

 

Venting

 

Installation - Wiring

7

Amplifier fuses

 

Wire gauge

 

Power 12v and ground (GND) connection

 

Remote input connection

 

Speaker output connection

 

Mono subwoofer operation

 

Tuning The Amplifier - Front and Rear Speakers

8

Music

 

Front signal routing switch

 

Input sensitivity control

 

Highpass and lowpass crossover controls

 

Head unit

 

Volume

 

4-channel highpass operation switch configuration diagram

 

Input sensitivity control

 

Crossover controls

 

Q-Tunecontrol

 

4-channel operation wiring configuration diagram

 

Tuning The Amplifier - Front Speakers and Subwoofers

10

Front signal routing switch

 

Head unit

 

Volume

 

Input sensitivity control

 

Highpass crossover control

 

Q-Tunecontrol

 

Rear input switch

 

Lowpass crossover control

 

GT-RSL

 

Bridged operation wiring configuration diagram

 

Amplifier Troubleshooting Guide

12

Service Information

 

2

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Boston Acoustics GT-4100, GT-475 owner manual Table Of Contents