Woofer/Midrange, and a laboratory- optimized crossover. The most popular system configuration is a hybrid using an active crossover for the subwoofer to midrange crossover point, and a passive crossover for the midrange to tweeter crossover. Your GTi Competition series dealer is uniquely qualified to help guide you on the best system configuration for your needs.

Component Placement

The location of each of the loudspeakers plays a vital role in achieving proper frequency response and spacious imaging. Because the 400 and 500GTi have an extremely wide and smooth dispersion pattern, excellent performance may be achieved in any vehicle. Because of the wide variety of vehicles, there is not one “right” way to locate the 400 and 500GTi, however knowledge of the following considerations will help you get the most from your system:

1.The most spacious stereo image is achieved when the 400 and 500GTi’s are placed as wide apart as possible.

2.The best center image will be achieved when the distance from the left speaker to your left ear is as equal as possible to the distance from the right speaker to your right ear. This is most easily achieved by placing the 400 and 500GTi as far forward as you can.

3.The best system integration is achieved when the woofer/midrange is mounted close to the tweeter. Installing the tweeter close to the woofer/midrange helps smooth the transition from woofer/midrange to tweeter at the crossover point.

4.You will get the best frequency response when the path from the woofer/midrange and tweeter to your ear is unobstructed.

5.Because of the high acoustic energy capability of the 400 and 500GTi, they must be securely mounted in a rigid panel which is free from resonances, rattles and air leakage.

Installation Warnings and Tips

Be careful not to cut or drill into fuel tanks, fuel lines, brake or hydraulic lines, vacuum lines or electrical wiring when working on your vehicle. Inspect behind panels before you cut or drill.

Be sure to check for clearance of window, cranks and linkages when mounting speakers in door panels.

Do not use the 400 and 500GTi unmounted. Failure to securely mount this product could result in damage or injury, particularly in the event of an accident.

Do not mount the 400 and 500GTi where it will get wet.

Always disconnect the ground wire from the battery before doing any work on the vehicle.

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JBL 500GTi, 400GTi manual Component Placement, Installation Warnings and Tips