Instruction/ maintenance manual of the product 400GTi JBL
Go to page of 12
400/600 MANUAL.QXP 7/17/98 11:10 AM Page 1.
T able of Contents Welcome to Club GT i ............................................3 About this Manual .................................................3 Autosound at its Best ............................................4 Designing Y our System .....
Welcome to Club GT i Thank you for purchasing the finest automotive woofer/midrange JBL has ever produced. As a GT i 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 GT i.
Autosound at its Best The 400 and 500GT i’s are built to meet the same rigorous standards of construction and performance that have long established JBL ’s renowned home and professional speaker systems.
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 .
Mounting Instructions Pick a mounting location after reading the recommendations in the Component Location section of this manual. Mounting Speakers in Stock Hole Locations 1 .
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 C. Then use spray adhesive to glue and wrap the grille cloth to the metal grille. Push the metal grille with cloth back in the plastic trim ring.
that the 400 and 500GT i should always be connected in the same polarity as the tweeter however . It is possible, that due to the difference in the distance the sound travels from the woofer/midrange .
to tweeter transition. Set the high crossover frequency at or above 5kHz if a 12dB per octave crossover is used and at or above 3.5kHz if you are using an 18 or 24dB per octave crossover . For safety , the maximum recommended amplifier power routed directly to the 400 and 500GT i Midrange is 150 watts for the 400GT i and 200 watts for the 500GT i.
Specifications: 400GT i 500GT i Frequency Response Without Crossover: 80Hz – 5kHz 60Hz – 5kHz Recommended Minimum High-Pass Crossover Frequency for Medium Power Operation: 80Hz 60Hz Recommended Ma.
11 Thiele-Small Specifications: 400GT i 500GT i Free Air Resonance (Fs): 125Hz 100Hz Electrical Damping (Qes): 0.52 0.51 Mechanical Damping (Qms): 5.17 5.14 T otal Damping (Qt): 0.47 0.4 Equivalent V olume of Compilance (V as): 0.0388 cu. ft. (1.10 liters) 0.
NMGP/N:304364-001 5/94 400/600 MANUAL.QXP 7/17/98 11:10 AM Page B.
An important point after buying a device JBL 400GTi (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought JBL 400GTi yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data JBL 400GTi - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, JBL 400GTi you will learn all the available features of the product, as well as information on its operation. The information that you get JBL 400GTi will certainly help you make a decision on the purchase.
If you already are a holder of JBL 400GTi, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime JBL 400GTi.
However, one of the most important roles played by the user manual is to help in solving problems with JBL 400GTi. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device JBL 400GTi along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
