User manual JBL S118 MACKINAC

[. . . ] The small size of the GTi Woofer/Midranges is made possible through the use of a Neodymium magnet assembly with JBL's Stray Field Containment Geometry. By preventing stray magnetic fields, this closed circuit magnetic assembly design concentrates the magnetic field on the voice coil where it provides superior performance. This high concentration of magnetic power is coupled to a 2" Edge-wound Aluminum 4 Wire High Temperature Fiberglass Voice Coil. This voice coil uses lightweight aluminum wire to maintain the agility to reproduce high frequencies while its large diameter assures extremely high thermal power handling. [. . . ] Installing the tweeter close to the woofer/midrange helps smooth the transition from woofer/midrange to tweeter at the crossover point. You will get the best frequency response when the path from the woofer/midrange and tweeter to your ear is unobstructed. 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. · · · · 5 Mounting Instructions 5. Replace the stock speaker panels. 2. Pick a mounting location after reading the recommendations in the Component Location section of this manual. MOUNTING RING Mounting Speakers in ADAPTOR Stock Hole Locations 1. A minimum wire gauge of 18AWG is recommended, with larger size wire suggested for runs longer than 10 feet. The polarity (the positive / negative orientation of the connections) for every speaker-to-amplifier connection must be consistent from left to right channel to assure proper imaging and optimum frequency response. This does not mean tweeter JBL 08GTi Figure B AMPLIFIER midrange JBL 400GTi AMPLIFIER midbass JBL 600GTi 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. For even better interior matching it is also possible to use plastic compatible paint to match the grille frame to the vehicle's interior. AMPLIFIER woofer JBL 1200GTi ACTIVE X-OVER HEAD UNIT AMPLIFIER Figure C tweeter JBL 08GTi METAL GRILLE midrange JBL 400GTi midbass JBL 600GTi PASSIVE X-OVER AMPLIFIER HEAD UNIT Wiring Use 2-conductor stranded type, insulated wire to connect the 400 and 500GTi to its crossover, and the crossover Figure D woofer JBL 1200GTi 7 that the 400 and 500GTi 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 your ears compared to the distance from the tweeters in a typical system, and the short wavelengths of sound at the crossover frequency, that a connection where the tweeters are connected in reverse polarity from the other drivers in the system may actually result in better sound. Because there is no way to accurately predict this before installation, we recommend that you try the connection both ways, and leave it in the polarity that gives the smoothest audible transition between the woofer/midrange and tweeter. System Connections There are a variety of system options available with the 400 and 500GTi. The simplest configuration is to use the 400 and 500GTi connected in parallel to a tweeter which includes a high-pass crossover such as the 08GTi, GT03 or GT07. Because the 400 and 500GTi is specifically designed for mid 8 frequency operation, it should have its high and extremely low frequencies blocked by electrical means in order to achieve the best system fidelity and the widest dynamic range. [. . . ] The 400 and 500GTi will not play as loudly, or handle the full rated power, when used without a high-pass crossover. When using the 400 or 500GTi 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. 9 Specifications: Frequency Response Without Crossover: Recommended Minimum High-Pass Crossover Frequency for Medium Power Operation: Recommended Maximum Low-Pass Crossover Frequency: Continuous Power Handling With 12dB Passive Network High Passed at Recommended Minimum Frequency: Continuous Power Handling With 12dB Passive Network High Passed at 150­200Hz (Midrange Operation): Continuous Power Handling With 18dB Per Octave High-PassActive Crossover at Recommended Minimum Frequency: Power Handling When Used Without High-Pass: Maximum Recommended Amplifier Power: Minimum Recommended Amplifier Power: Sensitivity (2. 83 Volts / 1 Meter): Impedance: Dimensions: Overall Diameter (Mounting Tab to Frame Edge): Height: Mounting Depth: Cutout Size: Weight 400GTi 80Hz ­ 5kHz 80Hz 5kHz 500GTi 60Hz ­ 5kHz 60Hz 5kHz 100 Watts 150 Watts 150 Watts 200 Watts 150 Watts 75 Watts 150 Watts 20 Watts 89dB 4 Ohms 200 Watts 100 Watts 200 Watts 20 Watts 91dB 4 Ohms 43/8" (111mm) 2 /8" (54mm) 1 /8" (48mm) 3 /4" (95mm) 1 lb. 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