Boston acoustics GT-275 - Manual

Page 2 - Table of Contents

T a b le O f C o n te n ts 2 2 Table of Contents Parts list 3 Specifications Connections 4 Top panel removal / installation Controls 5 Status LEDs Installation - General 6 Before you installBattery and charging systemWire routingChoose the mounting locationPassenger & trunk compartment mountingM...

Page 3 - Parts List; Technical Specifications:

P a rt s A n dS p e c if ic a ti o n s 3 Included Hardware: GT-275 GT-2125 GT-2200 GT-2300 Installation Manual 1 1 1 1 Female Quick-Connect Terminal 1 1 1 1 (for remote turn-on input) 2mm Hex Wrench 1 1 1 1 3mm Hex Wrench 1 1 1 1 Mounting Screws 4 4 4 6 Parts List Specifications Technical Specificat...

Page 4 - ti; Connections; Stereo RCA Input; Top Panel Removal / Installation

GT-2300 GT-2200 GT-2125 GT-275 1 2 3 4 6 5 1 2 3 4 6 5 1 2 3 4 6 5 1 2 4 6 5 C o n n e c ti o n s 4 Connections u Stereo RCA Input v Remote Turn-On (female spade connector supplied) w Remote Gain Port (refer to GT-RSL manual for installation instruction) x Left/Right/Mono Speaker Outputs (12-gauge a...

Page 5 - ls; Controls; Highpass Crossover OFF/ON Switch; Status LEDs; Red

1 2 3 4 7 9 8 5 6 10 10 1 4 7 9 8 5 6 10 10 1 2 3 4 7 9 8 5 6 1 2 3 4 7 9 8 5 6 GT-2300 GT-2200 GT-2125 GT-275 C o n tr o ls 5 Controls u Stereo/Mono Switch v Remote Gain OFF/ON Switch (ON when using GT-RSL) w Lowpass Slope Switch (12dB Stereo, 12dB Mono, or 24dB Mono) x Lowpass Crossover OFF/ON Swi...

Page 6 - Installation - General

In s ta ll a ti o n - G e n e ra l 6 Installation - General WARNING! Before driving the amplifier mounting screws through any surface, be sure of what is behind that surface. Check for the gas tank, brake lines, and any vehicle wiring harness. Never run wires outside or underthe vehicle or where the...

Page 7 - Installation - Wiring; Amplifier Fuses; Remote Input Connection; Mono Subwoofer Operation

In s ta lla ti o n- Wir in g 7 Installation - Wiring Amplifier Fuses Although the amplifier has an internal fuse, additional fuse protection should be installed as close as possibleto the battery on the positive (+) power wire going to the amplifier. An inline fuse should be installed at nomore than...

Page 8 - Tuning The Amplifier - Front or Rear Speakers; ) Input Sensitivity Control; -Channel Highpass Operation Switch Configuration Diagram

T u n in g - F ro n t / R e a r S p e a k e rs 8 Tuning The Amplifier - Front or Rear Speakers 1) Music The material chosen for head unit/amplifier system setup must be both clear in recording quality and dynamic in amplitude. Many audiophile “test” discs have musical tracks with both of these chara...

Page 9 - ) Input Sensitivity Control; -Channel Operation Wiring Configuration Diagram

T u n in g- F ro n t / R e a r S p e a k e rs 9 Tuning The Amplifier - Front or Rear Speakers 6) Input Sensitivity Control Slowly rotate the control clockwise (refer to the diagram on page 5) until maximum undistorted playing level isheard from the speakers. Listen closely for bottoming from the spe...

Page 10 - ) Input Sensitivity Control; Bridged Lowpass with Q-Tune

T u n in g - S u b w o o fe rs 10 Tuning The Amplifier - Subwoofer (s) 1) Input Switch Move switch to the right-hand (MONO) position (refer to the diagram on page 5); the inputs are summed tomono. Connect the subwoofer to the speaker output terminals marked for mono operation. NOTE: Subwooferimpedan...

Page 11 - ) Lowpass Crossover Control; Bridged Operation Wiring Configuration Diagram

T u n in g- S u b w o o fe rs 11 Tuning The Amplifier - Subwoofer (s) 5) Lowpass Crossover Control Move the selector switch to “ON” (refer to the diagram on page 5). In this setting, lowpass signal is sent to thespeaker outputs. Experiment with the crossover point settings while the subwoofer is act...

Page 12 - Amplifier Troubleshooting Guide; If Service Seems Necessary

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 chassis ...

Boston acoustics GT-275 - Manual

Table of Contents:

Summary

Other Boston acoustics Models