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Manual JBL 508GTI

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Summary
  • JBL 508GTI - page 1

    408GTi 508GTi AUTOMOTIVE NEO/KEVLAR MATCHED COMPONENT SYSTEM WITH CAST FRAME INSTALLATION GUIDE 408/508 MANUAL.QXP 7/17/98 11:21 AM Page 1 ...

  • JBL 508GTI - page 2

    T able of Contents Welcome to Club GT i .........................................................................3 About this Manual ..............................................................................3 Autosound at its Best .........................................................................3 Designing Y our System ................. ...

  • JBL 508GTI - page 3

    Welcome to Club GT i Thank you for purchasing the finest Automotive Component Systems 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.” By sending in the customer information card, which you will fi ...

  • JBL 508GTI - page 4

    minimizing stray magnetic fields, this closed circuit magnetic assembly design concentrates the magnetic field on the voice coil where it provides superior performance. In the woofer/midrange drivers, this high concentration of magnetic power is coupled to a 2" Edge-wound Aluminum Wire V oice Coil on a High T emperature Fiberglass Former . Thi ...

  • JBL 508GTI - page 5

    and high frequency transducers in a high quality system, we recommend you use either a high quality active crossover such as JBL ’s GTX47, GTX4 or GTX2 to provide optimum matching to your subwoofer or woofer/midbass loudspeaker . If you prefer passive crossovers, we recommend that you use only high quality audiophile grade film-type capacitors an ...

  • JBL 508GTI - page 6

    Mounting Instructions Pick a mounting location after reading the recommendations in the Component Placement section of this manual. Installing the GTi System Crossover The GT i system crossover should be mounted securely to prevent damage to the crossover or possible loosening of wiring connections. Choose one of the crossover mounting methods and ...

  • JBL 508GTI - page 7

    Woofer/Midrange Driver Mounting Mounting the Woofer/Midrange to Stock Hole Locations 1. Access the stock speaker location and remove the stock speaker . The 408 and 508GT i include mounting ring adapters which allow the speaker to be mounted in standard 4" and 5 1 / 4 " holes respectively . 2. Attach the mounting ring adapter to the stock ...

  • JBL 508GTI - page 8

    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 E. Then use spray adhesive to glue and wrap the grille cloth to the metal grille. Push the metal grille with cloth back in the grille frame. For even better interior matching it is also ...

  • JBL 508GTI - page 9

    T weeter Surface Angle Mounting Instructions a) Using the Surface Angle Mount Template at the back of the manual, drill two screw holes at the desired mounting location, making sure to choose the correct tweeter orientation. Secure the Surface Angle Mount Adapter with two 3 ⁄ 4 " sheet metal screws as shown in Figure G. b) Secure the mountin ...

  • JBL 508GTI - page 10

    T weeter Flush Mounting Instructions a) Use a hole saw or other tool and the Flush Mount T emplate at the back of this manual to make a hole for the flush mount cup in the desired location. Secure the metal spring to the Flush Mount Cup using one metal spring screw as shown in Figure H. T ighten the screw only enough to keep the metal spring from f ...

  • JBL 508GTI - page 11

    T weeter Flush Angle Mounting Instructions a) Follow steps a through c in the T weeter Flush Mounting Instructions. b) Secure the Flush Angle Mount Adapter to the Flush Mount Cup using two 5 ⁄ 16 " screws as shown in Figure J. c) Connect the 408 and 508GT i speaker wires (from the crossover) to the tweeter , observing correct polarity (see f ...

  • JBL 508GTI - page 12

    Wiring Use 2-conductor stranded type, insulated wire to connect the 408 and 508GT i Woofer/Midrange and tweeter to the included crossover , and the crossover to the amplifier as shown in Figure K. A minimum wire gauge of 18A WG is recommended, with larger size suggested for wire runs longer than 10 feet. The polarity (the positive / negative orient ...

  • JBL 508GTI - page 13

    System Connections There are a variety of system options available with the 408 and 508GT i. The simplest configuration is to use the 408 and 508GT i full range. Although this will yield good sound, the best performance will be achieved in a high-end system which includes subwoofers and, optionally , midbass transducers. Because the 408 and 508GT i ...

  • JBL 508GTI - page 14

    used and at or above 3.5kHz if you are using an 18 or 24dB per octave crossover . In this configuration, the crossovers supplied with the 408 and 508GT i are not used. For tweeter protection, a 1.5A fast acting fuse should be installed in series with the tweeter . The maximum recommended RMS amplifier power routed directly to the woofer/midrange is ...

  • JBL 508GTI - page 15

    crossovers near wires carrying high currents such as battery cables or wires leading to ammeters or tachometers. Distortion is usually the result of overdriving one or more components in the system. The problem is most likely insufficient amplifier power , or improper setting of gain controls. Refer to the instructions which came with the electroni ...

  • JBL 508GTI - page 16

    16 Specifications: 408GT i 508GT i Frequency response: 80 – 22kHz 60 – 22kHz Recommended minimum High-Pass Crossover Frequency for Medium Power Operation: 80Hz 60Hz Continuous Power Handling With 12dB Passive Network High Passed at Recommended Minimum Frequency: 100 W atts 150 W atts Continuous Power Handling with 12dB Passive Network High Pass ...

  • JBL 508GTI - page 17

    17 Thiele-Small Specifications: 408 GT i 508 GTi 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) 0.1059 cu. ft. (3.0 liters) Effective Cone Area (Sd): 9.3 sq. inches (0.0060 m 2 ) 14.26 sq. ...

  • JBL 508GTI - page 18

    19 Tweeter is angled in this direction Drill 3 / 32 " (2.9mm) hole in two places Drill 11 / 32 " (8.7mm) holes for wire feed through TWEETER SURF ACE ANGLE MOUNT TEMPLA TE 408/508 MANUAL.QXP 7/17/98 11:21 AM Page 18 ...

  • JBL 508GTI - page 19

    21 Drill 3 / 32 " (2.4mm) holes for mounting screw Drill 11 / 32 " (8.7mm) holes for wire feed through TWEETER MOUNTING PLA TE TEMPLA TE 408/508 MANUAL.QXP 7/17/98 11:21 AM Page 19 ...

  • JBL 508GTI - page 20

    23 Cut Hole Using 2 1 / 8 -2 1 / 4 " (54mm) hole saw TWEETER FLUSH MOUNT TEMPLA TE 408/508 MANUAL.QXP 7/17/98 11:21 AM Page 20 ...

  • JBL 508GTI - page 21

    408GTi 508GTi AUTOMOTIVE NEO COMPONENT SYST INSTALLATION GU JBL Consumer Products, Inc. 80 Crossways Park West Woodbury, NY 11797 8500 Balboa Blvd. Northridge, CA 91329 1-800-336-4JBL A Harman International Company NMGP/N:306385-001 5/94 408/508 MANUAL.QXP 7/17/98 11:21 AM Page B ...

Manufacturer JBL Category Car Speaker

Documents that we receive from a manufacturer of a JBL 508GTI can be divided into several groups. They are, among others:
- JBL technical drawings
- 508GTI manuals
- JBL product data sheets
- information booklets
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All of them are important, but the most important information from the point of view of use of the device are in the user manual JBL 508GTI.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals JBL 508GTI, service manual, brief instructions and user manuals JBL 508GTI. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product JBL 508GTI.

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A complete manual for the device JBL 508GTI, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use JBL 508GTI by users. Manuals are usually written by a technical writer, but in a language understandable to all users of JBL 508GTI.

A complete JBL manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual JBL 508GTI - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the JBL 508GTI, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the JBL 508GTI, that we can find in the current document
3. Tips how to use the basic functions of the device JBL 508GTI - which should help us in our first steps of using JBL 508GTI
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with JBL 508GTI
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of JBL 508GTI in a specific country, if it was not possible to solve the problem on our own.

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