User manual JBL 504 GTI
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Manual abstract: user guide JBL 504 GTI
Detailed instructions for use are in the User's Guide.
[. . . ] Table of Contents
Welcome to Club GTi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Autosound at its Best . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Designing Your System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Coupled ComponentTM Placement. . . . . . . . . . . . . . . . . . . . . . . . . 5 Installation Warnings and Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Mounting Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Installing the GTi System Crossover . . . . . . . . . . . . . . . . . . . . . 6 Woofer/Midrange Driver Mounting . . . . . . . . . . . . . . . . . . . . . . . . 7 Mounting Speakers in Custom Locations. . . . . . . . . . . . . . 8 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 System Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Crossover Tweeter Level Adjustment. . . . . . . . . . . . . . . . . . 12 Speaker Break-In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 A Note on Power Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 In Case of Difficulty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Thiele-Small Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
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Welcome to Club GTi
Thank you for purchasing the finest Automotive Coupled ComponentTM Systems JBL has ever produced. As a GTi Competition Series owner, you are a member of a select group of people who enjoy the most advanced mobile audio products available. We call this group "Club GTi. " By sending in the customer information card, which you will find attached to your warranty, we will automatically register you as a Club GTi member which will give you access to exclusive Club GTi apparel and other special offers we will make available from time to time. It will be necessary to use this document as proof of purchase in the event that you ever need warranty service. [. . . ] Always disconnect the ground wire from the battery before doing any work on the vehicle.
Mounting Instructions
Pick a mounting location after reading the recommendations in the Coupled ComponentTM Placement section of this manual.
Installing the GTi System Crossover
The GTi system crossover should be mounted securely to prevent damage to the crossover or possible loosening of wiring connections. Choose one of the crossover mounting methods and follow the directions on the following page.
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Mounting the GTi Crossover with Wire Ties 1. Use wire ties to secure the plastic case to the desired location as shown in Figure A. Re-install the PCB and install wiring from the crossover to the amplifier and speaker locations as shown in Figure F. Re-install the crossover cover.
Mounting the Crossover with Screws 1. Mark 4 hole locations, drill holes and secure the bottom cover to the desired mounting location as shown in Figure B. Before starting, make sure no electrical or other critical car components are located where you will be drillling. Re-install PCB and install wiring from the crossover to the amplifier and speaker locations as shown in Figure F. Re-install the crossover cover.
Woofer/Midrange Driver Mounting
Mounting to Stock Hole Locations 1. The 404 and 504GTi include IntermountTM mounting ring adapters which allow the speaker to be mounted in standard 4" and 51/4" holes respectively. Mount the intermount adapter plate to the stock location using four #8 x 11/4" screws as shown in Figure C. Connect the "+W" terminal of the crossover to the orange "W" terminal of the speaker. Connect the speaker wire from the crossover terminals marked " T " to the tweeter terminals of the speaker by either soldering (preferred) or using crimp terminals. The "+T" terminal of the crossover should be connected to the orange colored T terminal on the speaker. Mount the speaker to the hole location using three #8 x 11/4" screws as shown in Figure D. Push the grille down onto the speaker, making sure the tabs on the speaker, match with the slots in the grille. Twist the grille about 1/2" (12mm) clockwise to lock the grille into place.
FABRIC DISPLACEMENT RING
GRILLE FRAME METAL GRILLE
Tab slot
Figure D
Figure E
TAB
Note: The metal grille is designed so that it can be covered with grille cloth if desired. Simply, remove the metal grille from the plastic trim ring as shown in Figure E. Then use spray adhesive to glue and wrap the grille cloth to the metal grille. For even better interior matching it is also possible to use plastic compatible paint to match the grille frame to the vehicle's interior.
Logo Orientation on Grille The orientation of the logo on the grille relative to the plastic grille ring can be adjusted. Simply remove the metal grille and reassemble the metal grille to the grille frame utilizing a different tab slot.
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Wiring
Use 2-conductor stranded type, insulated wire to connect the 404 and 504GTi Woofer/Midrange and Tweeter to the included crossover, and the crossover to the amplifier as shown in Figure F. A minimum wire gauge of 18AWG is recommended, with larger size suggested for wire runs longer than 10 feet.
TWEETER
WOOFER
INPUT
504 GTI Crossover
Figure F
The polarity (the positive / negative orientation of the connections) for every speaker and crossover to amplifier connection must be consistent from left to right channel to assure proper imaging and optimum frequency response. [. . . ] However, the use of a low-powered amplifier to attain very high volume levels could lead to overdriving the amplifier. This
will generate high distortion levels which can easily damage loudspeakers, even if the rated power of the amplifier is below the rated maximum power handling of the loudspeaker!As a general rule, do not turn up the volume control past the point where you hear distortion in the form of either signal distortion from an overdriven amplifier or mechanical noise from an overstressed speaker. For the best performance and system reliability, you should select an amplifier with an output rating greater than the maximum power likely to be used to generate the desired volume levels. [. . . ]
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