JBL GTH400-20107 User Manual
Page 3
Table of Contents
1. Introduction...................................................................................... 3
1.1 Features .................................................................................... 4
1.2 About Installation ...................................................................... 4
2. Installation and use .......................................................................... 5
3. System Design with the GTH400..................................................... 6
3.1 Speaker Requirements ............................................................. 6
3.2 Typical Applications.................................................................. 7
4. Installation and Use ......................................................................... 9
4.1 Controls and Connectors.......................................................... 9
4.2 Internal Adjustments ................................................................ 12
Speaker-Level Input Impedance Adjustments......................... 12
Crossover Frequency Adjustments.......................................... 12
Custom Chip construction ....................................................... 13
Remote Chassis Installation .................................................... 13
Unter-Dash Remote Installation............................................... 14
In-Dash remote Installation ...................................................... 14
Power Supply Connections ..................................................... 14
Simultaneous Speaker Stereo-Mono Connection Diagram..... 16
Speaker-Level Input Harness - Color Codes........................... 17
5. Adjusting the Gain .......................................................................... 17
6. Important Characteristics ............................................................... 19
7. In Case of Difficulty......................................................................... 21
8. Specifications ................................................................................. 23
Owner’s Warranty Information
Model Number
Serial Number
Dealer Name
City, State, Zip
Sales Receipt Number
Date of Purchase
GTH400-20107 06/03/98 15:49 Side 2