Boston Acoustics GT-40 manual Parts List, Features and Specifications

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GT-40_manual 4/10/03 4:17 PM Page 3

Parts List

Included Hardware

(1) owner’s manual

(1)female quick-connect terminal for remote input

(1)2mm hex wrench (for speaker input)

(1)3mm hex wrench (for power input)

(4)mounting screws

Features and Specifications

GT-40 Features

4-Channel, High-Current Amplifier

2Bridge Stable Operation

Power Increase with Input Voltage Rise

Advanced Cooling Allows Varied Mounting Positions

Adjustable Feet for Varied Mounting Surfaces

Security Cover Protects Control Settings

Continuously Variable Crossover and Q-factor Settings

Selectable Highpass Front Channels

Selectable Mono/Stereo Rear Highpass (Rear Fill) or Subwoofer Lowpass

Selectable Rear Channel Signal Derived from Front Channel Input

Optional Remote Bass Control

Enhanced Switching Assignments

GT-40 Specifications

14.4VDC Power

@ 4 Ohms

4x55W

@ 2 Ohms

4x90W

@ 4 Ohms (dual-mono)

2x190W

@ 2 Ohms (dual-mono)

2x240W

 

 

12.6VDC Power

 

@ 4 Ohms

4x45W

@ 2 Ohms

4x70W

@ 4 Ohms (dual-mono)

2x140W

@ 2 Ohms (dual-mono)

2x190W

 

 

14.4VDC Multi-channel Power

2x55W (4 ohm), 1x240W (2 ohm)

12.6VDC Multi-channel Power

2x45W (4 ohm), 1x190W (2 ohm)

Frequency Response (-3dB)

10Hz–95kHz

Signal-to-Noise Ratio (A Weighted)

>100dB

Dimensions

21/4x141/8x87/8” (57 x 358 x 225mm)

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Contents GT-40 Channel, High-Current/High-Power AmplifierTable of Contents Features and Specifications Parts ListControl Functions Rear RCA Inputs Rear Input SwitchStatus LED Indicators ControlMechanical Functions Wire Connection Amplifier LinkingFuses Wire Routing General Installation PrecautionsBefore You Install Battery & Charging SystemChoose the Mounting Location Installation-Amplifier MountingAmplifier Fuses Installation-Fuses & WiringWire Gauge Passenger & Trunk Compartment MountingPower/B+ & Power/GND Connection Remote Input ConnectionSpeaker Output Connection Setup Tuning-Full-range Speakers Front Crossover Controls VolumeHead Unit Front Input Sensitivity ControlFront Q Control Setup Tuning-Rear Fill SpeakersSetup Tuning-Subwoofers Subwoofer Level Control Rear Input SwitchRear Crossover Control Rear Input Sensitivity ControlSystem Examples System A-Full-range Front with Full-range RearSystem B-Full-range Front with Rear Fill System D -Main Speakers with Parallel 4Ω Subwoofers 2Ω load System C-Main Speakers with Single Subwoofer 2ΩAmplifier Troubleshooting Guide Status LEDs on Amplifier not Lit-Head Unit Source Turned onEngine Noise from Speakers Contact and Warranty Information Limited Warranty USIf Service Seems Necessary