Table of Contents Welcome to Club GTi ............................................3 About this Manual .................................................3 Autosound at its Best ............................................4 Designing Your System .........................................4 Component Placement..........................................5 Installation Warnings and Tips ..............................5 Mounting Instructions ............................................6 Wiring ....................................................................7 System Connections .............................................8 A Note on Power Handling ....................................9 In Case of Difficulty ...............................................9 Specifications ......................................................10 Thiele-Small Specifications .................................11 2 Welcome to Club GTi Thank you for purchasing the finest automotive woofer/midrange JBL has ever produced. As a GTi 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 GTi." By sending in the customer information card, which you will find attached to your warranty, we will automatically register you as a Club GTi member which will give you access to exclusive Club GTi apparel and other special offers we will make available from time to time. We suggest you fill the card out at your earliest convenience. Also, be sure to save your sales receipt in a safe place. It will be necessary to use this document as proof of purchase in the event that you ever need warranty service. It is also useful for insurance purposes and for establishing value when you re-sell your vehicle. About This Manual Because of the performance capability of your GTi Competition Series product, and the variety of potential system configurations, we strongly recommend that you have the system professionally installed. You will also get a better warranty if your equipment is professionally installed by an authorized GTi dealer and you have your warranty card stamped. This manual provides information on installation and usage to help a skilled technician get the most from your GTi Competition Series product. This manual does not cover basic information about installation which is common knowledge to a professional installer, except for information which is unique to the 400 and 500GTi Midranges. If you feel you possess the necessary skills, and prefer to install the equipment yourself, this manual will provide you with the necessary specifics to properly use the 400 or 500GTi in typical installations. Consult your JBL dealer, or a qualified technician, for more information. 3 Autosound at its Best The 400 and 500GTi'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. The 400 and 500GTi Woofer/Midranges incorporate advanced JBL woven Kevlar cones which are especially suited to the unique acoustic and environmental conditions which characterize automotive sound. The 400 and 500GTi are engineered to provide excellent frequency response low distortion, and high-power handling, in a minimum size. 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. The cone motion of these high excursion designs is controlled by a Aromatic Polyamid Fiber Spider. This new material is able to control the 0.6" motion of the cone while maintaining musical accuracy because it is 3 times stronger than conventional spider materials. Treated Kevlar fiber cones are used because of their combination of low weight, high stiffness and resistance to resonances. The 400 and 500GTi Woofer/Midranges are topped off with a treated fabric inverted dome for smooth reproduction of high frequencies. What does all this technology add up to? A driver with flat frequency response, excellent off-axis response, and high output capability, all in a small and elegant package. The result is exceptionally smooth and detailed music reproduction to 5kHz and clean sound that cuts through road noise. Designing Your System The availability of separate components makes a variety of system designs possible. Because of their small size, the 400 and 500GTi's are perfect for many different applications. The overall quality of any system design is a result of how well all of the components work together, not just the result of the performance of any one component. JBL GTi Series tweeter and subwoofer transducers are the ideal companion products to your 400 and 500GTi Woofer/Midranges. Each of the GTi Competition Series components is designed to complement the others to provide the highest performance with the simplest and most predictable system design. To use the 400 and 500GTi as the woofer/midrange transducers in a high quality system, we recommend you use either a high quality active crossover such as JBL's GTX47, GTX4 or GTX2. If you prefer passive crossovers, we suggest a complete 408GTi or 508GTi system which includes the 08GTi Tweeter, 400 or 500GTi Woofer/Midrange, and a laboratoryoptimized 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. 2. 3. 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. 4. 5. 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. 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. 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. Access the stock speaker location and remove the stock speaker. The 400 and 500GTi include mounting ring adaptors which allow the speaker to be mounted in standard 4" and 51/4" holes respectively. 2. Attach the mounting ring adaptor to the stock location using four #8 x 11/4" screws as shown in Figure A. Figure A 3. Attach the included foam gasket to the rear mounting surface of the Mounting Speakers in Custom Hole woofer/midrange. Connect the speaker Locations wire to the speaker by either soldering (preferred) or using crimp terminals. Make 1. Using the fabric displacement ring as a template, mark the location of the sure to observe polarity when connecting 3 screw holes and the speaker cutout wire to the speaker. The plus terminal is holes. Before cutting or drilling indicated by the red "W" marking. make sure that there are no car 4. Mount the woofer/midrange driver to components, electrical wiring or any the mounting ring adaptor using three 7 other items that could be damaged. #8 x /16" screws and three shoulder Also choose an orientation for the washers as shown in Figure A. 6 3. 4. 5. 6. 7. speaker which will align the grille logo in the desired orientation. Cut out the speaker hole at the mounting location. Drill 3 pilot screw holes using 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. Put the speaker fabric displacement ring under the speaker as shown in Figure B. Attach the included foam gasket to the rear mounting surface of the woofer/midrange. Connect the speaker wire to the speaker by either soldering (preferred) or using crimp terminals. Make sure to observe polarity when connecting wire to the speaker. The plus terminal is indicated by the red "W" marking. Mount the speaker to the hole location, using three #8 x 11/4" screws and three shoulder washers as shown in Figure B. Push the grille down onto the speaker making sure the tabs match with the slots in the grille. Twist the grille about 1/2" Clockwise to lock the grille into place. FABRIC DISPLACEMENT RING Logo Orientation on Grille The orientation of the logo on the grille relative to the grille frame can be adjusted. Simply remove the metal grille and reassemble the metal grille to the grille frame utilizing a different tab slot. GRILLE FRAME to the amplifier. 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 ...