Boston acoustics GT-20 GT-222 - Manual

Page 2 - Table of Contents

2 Table of Contents Parts List 3 Features and Specifications 3 Control Functions 4 Control functions (cont.) 5 Mechanical Functions 6 Recessed RCA inputs 6 Control cover removal & reinstallation 6 Multi-position mounting feet 6 Vents (side & rear) 6 Mechanical functions (cont.) 7 Amplifier l...

Page 3 - Parts List; Features and Specifications

Included Hardware: GT-20 & GT-22 (1) owner’s manual (1) female quick-connect terminal (1) 2mm hex wrench (for speaker input) (1) 3mm hex wrench (for power input) (4) mounting screws 3 Parts List Technical Specifications GT-20 GT-22 14.4VDC Power @ 4 Ohms 2x55W 2x100W @ 2 Ohms 2x100W 2x175W @ 4 O...

Page 4 - Control Functions; RCA Inputs

4 Control Functions RCA Inputs RCA cables from head unit or from other line level device should be connectedhere. Use both inputs (L & R) for stereo; use “L” input for mono. Remote Input Use the supplied FEMALE quick-connector to connect the REMOTE trigger leadfrom the head unit to the amplifier...

Page 6 - Mechanical Functions; Recessed RCA Inputs; upper side vent

6 Mechanical Functions Recessed RCA Inputs The input jacks are recessed into the body of the amplifier to provide clear-ance in tight mounting locations. Control Cover Removal & Reinstallation The cover panel is secured with two (2) captive coin-slotted screws. Coin-slottedscrews allow a coin ed...

Page 8 - General Installation Precautions

8 Before You Install Before you install the unit, disconnect the negative (–) battery cable in the engine compartment of the vehi-cle. Doing so will prevent damage to both the electrical system of the vehicle and the amplifier during installation. Wire Routing Do not run the power wire near any low-...

Page 9 - Choose the Mounting Location; Installation—Amplifier Mounting

9 57mm (2.5") Choose the Mounting Location Plan your installation so that the amplifier is mounted where adequate ventilation is available. Never mount an amplifier in the engine compartment of a vehicle! WARNING! Before driving the mounting screws through any surface, be sure of what is behind ...

Page 10 - Passenger & Trunk Compartment Mounting; Installation—Fuses & Wiring; Amplifier Fuses

10 Passenger & Trunk Compartment Mounting If the amplifier is mounted under a seat, be sure that the vents do not becomeblocked. Do not allow seat padding or other obstructive material to pressdown on the amplifier. All Boston GT amplifiers have top panel controls. If the amplifier is mountedund...

Page 11 - Remote Input Connection

Power/B+ & Power/GND Connection Strip approximately 5 / 8 " (16mm) of insulation. The positive (+) power wire is installed into the amplifier terminal marked “B+”. The negative (–) wireis installed into the terminal marked “GND”. The ground wire should beas short as possible and connected di...

Page 12 - Mono Subwoofer Operation; ) Input Sensitivity Control; Setup Tuning—Full-range Speakers; Highpass Crossover Control

12 Mono Subwoofer Operation When the amplifier is configured for mono operation, use the speaker output terminals marked formono use. WARNING! Subwoofer impedance must not fall below 2 ohms when in MONO mode. Installation—Fuses & Wiring (cont.) 1) Music The material chosen for head unit/amplifie...

Page 13 - ) Input Sensitivity Control

13 Setup Tuning—Full-range Speakers (cont.) 4) Head Unit The head unit should have all controls such as bass, treble, balance, and fader set to the flat or centeredposition. The volume control should be at the minimum setting. If the head unit has any equalization or bassmanagement features such as ...

Page 16 - System Examples; System A—Full-range Front Speakers; System B—Rear Fill Speakers

16 System Examples System A—Full-range Front Speakers fuse to + battery terminal to ground 6 .5 L F 6 .5 L F System B—Rear Fill Speakers fuse to + battery terminal to ground 6 .5 L F 6 .5 L F

Page 18 - Amplifier Troubleshooting Guide; Amplifier not Turning “ON”, Red LED Lit

18 Amplifier Troubleshooting Guide Status LEDs on Amplifier not Lit — Head Unit (Source) Turned “ON” Verify Remote turn-on wire from source to amplifier has proper voltagePower (B+) connections at amplifier, terminal blocks, and battery are secureGround (GND) connections at amplifier and vehicle cha...

Page 19 - Contact and Warranty Information; If Service Seems Necessary

19 Contact and Warranty Information 300 Jubilee Drive Peabody, MA 01960 U.S.A. (978) 538-5000 Boston, Boston Acoustics, and the Boston logo areregistered trademarks of Boston Acoustics, Inc. © 2003 Boston Acoustics, Inc. All rights reserved.Specifications subject to change without notice. P/N 042-00...

Boston acoustics GT-20 GT-222 - Manual

Table of Contents:

Summary

Other Boston acoustics Models