User manual JBL 600GTI

[. . . ] The 600GTi Woofer/Midbass incorporates a high polymer laminate pulp cone which is especially suited to the unique acoustic and environmental requirements for an automotive woofer/midbass unit. The 600GTi has been engineered to provide excellent power handling, optimum transient attack and balanced frequency response. The 600GTi Woofer/Midbass uses a cast frame to secure the powerful Barium Ferrite Magnet based motor structure. The rigid cast frame prevents resonance and flexing in the frame thus reducing distortion. [. . . ] The best system integration is achieved when the 600GTi is mounted close to the midrange. Installing the midrange close to the 600GTi helps smooth the transition from midbass to midrange at the crossover point. You will get the best frequency response when the path from the speakers to your ear is unobstructed. 5. 6. Because of the high acoustic energy capability of the 600GTi, they must be securely mounted in a rigid panel which is free from resonances, rattles and air leakage. Due to the low frequencies reproduced by the 600GTi, an enclosure will enhance performance when it is possible to accommodate one in the available space. Use the Thiele-Small specifications to design a sealed or vented enclosure using standard formulas. Thiele-Small specifications are listed in the specifications section of this manual. 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. Be sure to check for clearance of window, cranks and linkages when mounting speakers in door panels. Failure to securely mount this product could result in damage or injury, particularly in the event of an accident. Although the materials used on the 600GTi are inherently water resistant, do not mount the speakers where they will get wet. 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 Component Placement section of this manual. 5 600GTi Mounting Mounting the Speaker 1. Use the grill included in the package to mark the location of the four screw holes and the speaker cutout holes (cutout hole size listed in Specifications section). Before cutting or drilling make sure that there are no car components, electrical wiring or any other items that could be damaged. Cut out the speaker hole at the mounting location and drill the four marked holes with a 1/8" (3mm) drill. Run speaker wire to the hole location, making sure that either an active or passive crossover is connected to the speaker. METAL GRILLE 4. 5. 6. Connect the speaker wire to the speaker by either soldering (preferred) or using crimp terminals. The 600GTi uses a . 205 flat blade terminal for the + connection and a . 110 terminal for the ­ connection. Mount the speaker to the hole location using four #8 x 11/4" screws as shown in Figure A. Push the metal grille down onto the grille frame, making sure to align the logo as desired. 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 A. 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 color. GRILLE FRAME Figure A 6 Wiring Use 2-conductor stranded type, insulated wire to connect the 600GTi Woofer/Midbass and Tweeter to the included crossover, and the crossover to the amplifier as shown in Figure B. A minimum wire gauge of 18AWG is recommended, with larger size suggested for wire runs longer than 10 feet. tweeter JBL 08GTi AMPLIFIER midrange JBL 400GTi AMPLIFIER midbass JBL 600GTi AMPLIFIER woofer JBL 1200GTi ACTIVE X-OVER HEAD UNIT AMPLIFIER tweeter JBL 08GTi midrange JBL 400GTi midbass JBL 600GTi PASSIVE X-OVER AMPLIFIER HEAD UNIT woofer JBL 1200GTi Figure B 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. This does not mean that the 600GTi should always be connected in the same polarity as the other drivers in the system however. [. . . ] The problem is most likely insufficient amplifier power, or improper setting of gain controls. Refer to the instructions which came with the electronics for assistance. The 600GTi will not play as loudly, or handle the full rated power, when used without a subwoofer and associated high-pass crossover. When using the 600GTi without a highpass filter, be careful to limit the volume level to that which can be reproduced without audible distortion from the speaker. [. . . ]