Jbl gtq 240 service manual

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jbl gtq 240 service manual

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GT0240

Multichannel Automotive Amplifier

Table of Contents

Specifications ................................................................. 1 Amplifier Exploded View ................................................ 7
Features .......................................................................... 2 Parts Lists ....................................................................... 8
Test Conditions and Notes ............................................ 2 Integrated Circuit Diagrams; ........................................ 11
Controls and Connections .............................................. 3 Printed Circuit Boards .................................. 12
Speaker-Level input Impedance Adjustments ..... Packaging Exploded View ........................................... 14
Crossover Frequency Adjustments... Block Diagrams .. ..15
Custom Chip Construction ............................................. 5 Schematic Diagrams ...... ..17
Typical System Configuration (Wiring) .......................... 6
Specifications

Number of Channels. 4. 3, 2

4 Ohms Stereo 45W x 4

2 Ohms Stereo 60W x 4

4 Ohms Bridged . . 120W x 2

TtH.D. @ 4 Ohms rated power 0.05%

Frequency Response 10Hz - 40kHz (+0, -1db)

Signal to Noise Ratio 100dBA

Slew Hate . . 1OV/us

Channel Separation (dB) >65dB

Damping Factor >200

Crossover Slope . tadB

Fuse Size

Line Level Sensitivity.
Speaker Level Sensitivity
Operating Range .
External Dimensions
Length

Width.

Depth.

Weight

.JBL continually strives to improve its products. New materials, production methods and design refinements are introduced into

30Amp 82Volt ATC Type Fuse (2 per amplifer)
100mV - 4V

400mV - 8V

11V - 16V

14 7/16" (376mm)
10 (245mm)

2" (51mm)
11.1le (5.0kg)

existing models without notice as a routine expression of our design philosophy. For this reason, GTQ Series Multichannel

Automotive Amplifiers may differ in some respect from their published specifications and descriptions, but will always equal or

exceed the original specifications unless otherwise stated.