Related Manuals for JBL 408GTI
Summary of Contents for JBL 408GTI
- Page 1 408GTi 508GTi AUTOMOTIVE NEO/KEVLAR MATCHED COMPONENT SYSTEM WITH CAST FRAME INSTALLATION GUIDE...
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Page 2: Table Of Contents
Table of Contents Welcome to Club GTi ...3 About this Manual ...3 Autosound at its Best ...3 Designing Your System ...4 Component Placement...5 Installation Warnings and Tips ...5 Mounting Instructions ...6 Installing the GTi System Crossover ...6 Woofer/Midrange Driver Mounting ...7 Mounting the 408 and 508GTi Tweeter ...8 Tweeter Surface Mounting Instructions ...8 Tweeter Surface Angle Mounting Instructions ...9... -
Page 3: Welcome To Club Gti
408 or 508GTi in typical installations. Consult your JBL dealer, or a qualified technician, for more information. Autosound at its Best The 408 and 508GTi systems are built... -
Page 4: Designing Your System
Pure titanium has long been known to have a very high stiffness to weight ratio, making it ideal for treble reproduction. However, only JBL has “tamed” titanium through a special manufacturing process. The dome of the 408 and 508GTi Tweeter is created... -
Page 5: Component Placement
JBL’s GTX47, GTX4 or GTX2 to provide optimum matching to your subwoofer or woofer/midbass loudspeaker. If you prefer passive crossovers, we... -
Page 6: Mounting Instructions
Mounting Instructions Pick a mounting location after reading the recommendations in the Component 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. -
Page 7: Woofer/Midrange Driver Mounting
Woofer/Midrange Driver Mounting Mounting the Woofer/Midrange to Stock Hole Locations Access the stock speaker location and remove the stock speaker. The 408 and 508GTi include mounting ring adapters which allow the speaker to be mounted in standard 4" and 5 "... -
Page 8: Mounting The 408 And 508Gti Tweeter
GRILLE FRAME METAL GRILLE Figure E Note: The metal grille is designed so that it can be covered with grille cloth if desired. Simply, remove the metal grille from the grille frame as shown in Figure E. Then use spray adhesive to glue and wrap the grille cloth to the metal grille. -
Page 9: Tweeter Surface Angle Mounting Instructions
Tweeter Surface Angle Mounting Instructions a) Using the Surface Angle Mount Template at the back of the manual, drill two screw holes at the desired mounting location, making sure to choose the correct tweeter orientation. Secure the Surface Angle Mount Adapter with two ⁄... -
Page 10: Tweeter Flush Mounting Instructions
Tweeter Flush Mounting Instructions a) Use a hole saw or other tool and the Flush Mount Template at the back of this manual to make a hole for the flush mount cup in the desired location. Secure the metal spring to the Flush Mount Cup using one metal spring screw as shown in Figure H. -
Page 11: Tweeter Flush Angle Mounting Instructions
Tweeter Flush Angle Mounting Instructions a) Follow steps a through c in the Tweeter Flush Mounting Instructions. b) Secure the Flush Angle Mount Adapter to the Flush Mount Cup using two ⁄ " screws as shown in Figure J. c) Connect the 408 and 508GTi speaker wires (from the crossover) to the tweeter, observing correct polarity (see figure K for details). -
Page 12: Wiring
Wiring Use 2-conductor stranded type, insulated wire to connect the 408 and 508GTi Woofer/Midrange and tweeter to the included crossover, and the crossover to the amplifier as shown in Figure K. A minimum wire gauge of 18AWG is recommended, with larger size suggested for wire runs longer than 10 feet. -
Page 13: System Connections
60Hz and 150Hz when using the 508GTi and between 80Hz and 150Hz when using the 408GTi. In 4-way systems using a midbass driver such as the 600GTi, the crossover point may be raised higher without detrimentally affecting imaging as long... -
Page 14: Speaker Break-In
The maximum recommended RMS amplifier power routed directly to the woofer/midrange is 150 watts for the 408GTi and 200 watts for the 508GTi. The maximum recommended RMS amplifier power routed directly to the tweeter is 125 watts. - Page 15 508GTi full-range, be careful to limit the volume level to that which can be reproduced without audible distortion from the speaker. If you want to talk to us about any problems, call JBL Customer Service at 1-800-336-4JBL (4525) between 9AM and 5PM eastern time.
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Page 16: Specifications
Dimensions – Tweeter Overall Diameter: Height: Height With Angle Adapter: Flush Mount Cutout Diameter: Flush Mount Depth: Dimensions – Crossover Network (LxWxH): Woofer/Midrange Weight: Tweeter Weight: 408GTi 508GTi 80 – 22kHz 60 – 22kHz 80Hz 60Hz 100 Watts 150 Watts 150 Watts... -
Page 17: Thiele-Small Specifications
Note: The Thiele-Small specifications shown apply only after a break-in period of approximately 2 hours. JBL continually strives to impove its products. New materials, production methods and other refinements may result in a change from published specifications and description. The changes will equal or exceed the original specifications, unless otherwise stated. - Page 18 Drill " (8.7mm) holes for wire feed through Drill " (2.9mm) hole in two places TWEETER SURFACE ANGLE MOUNT TEMPLATE Tweeter is angled in this direction...
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Page 19: Mounting Templates
Drill " (8.7mm) holes for wire feed through TWEETER MOUNTING PLATE TEMPLATE Drill " (2.4mm) holes for mounting screw... - Page 20 Cut Hole Using " (54mm) hole saw TWEETER FLUSH MOUNT TEMPLATE...
- Page 21 JBL Consumer Products, Inc. 80 Crossways Park West Woodbury, NY 11797 8500 Balboa Blvd. Northridge, CA 91329 1-800-336-4JBL A Harman International Company NMGP/N:306385-001 5/94...