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JBL GTQ 190 User Manual

JBL GTQ 190
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01
Owner’s Manual
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
About Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Design Using the GTQ190 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Speaker Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Signal Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Other Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Typical Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Warnings and Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installation Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Mounting Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Installation and Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Controls and Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Mounting Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Power Supply Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
+12V Battery Wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Ground Wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Remote Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Speaker Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Audio Input Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Line-Level Input Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Speaker-Level Input Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Simultaneous Speaker-Level + Line-Level . . . . . . . . . . . . . . . . . . . . 10
Mode Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Adjusting the Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Other Important Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Add-On and Upgrade Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
In Case of Difficulty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Solving Noise Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
System Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Vehicle Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Owner’s Warranty Information
Model Number
Serial Number
Dealer Name
City, State, Zip
Sales Receipt Number
Date of Purchase
GTQ 190 - English 06/03/98 11:49 Side 1
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JBL GTQ 190 Specifications

General IconGeneral
BrandJBL
ModelGTQ 190
CategoryCar Amplifier
LanguageEnglish

Summary

Quick Start Guide

Signal Sources for GTQ Amplifier

Warnings and Tips for Installation

Installation Precautions

Crucial safety advice and precautions to follow before starting amplifier installation.

Mounting Locations for GTQ Amplifier

Installation and Use

Controls and Connectors Overview

Identifies and explains the purpose of each control and connector on the amplifier.

Mounting Positions

Wiring the GTQ Amplifier

Power Supply Connections

Detailed instructions for connecting the main power supply wires to the amplifier.

Ground Wire Connections

Proper Grounding for Noise Prevention

Guidance on securing a proper ground connection to minimize noise issues.

Remote Connection

Speaker Connections

Stereo and Bridged-Mode Connections

Instructions for connecting speakers correctly in stereo and bridged configurations.

Audio Input Connections

Speaker-Level Input Connections

Mode Switches Configuration

Adjusting the Gain

Gain Setting Procedure

Step-by-step guide to setting amplifier gain for optimal sound and low noise.

Add-On and Upgrade Steps

In Case of Difficulty

No Sound from Speakers

Diagnosing and resolving issues where no sound is produced by speakers.

Solving Noise Problems

System Noise and Gain Adjustment

Addressing hiss and noise caused by improper gain settings.

Vehicle Noise and Ground Loops

Identifying and eliminating noise from vehicle electrical systems and ground loops.

Power-line Noise Mitigation

Other Noise Sources

Specifications

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