JBL 08GTi Installation Manual - Flush Mounting

Manual is about: AUTOMOTIVE TITANIUM DOME TWEETER

Summary of 08GTi

  • Page 1

    0 8 g t i o8gti automotive titanium dome tweeter installation guide 08gti owners manual 9/17/98 4:17 pm page 1.

  • Page 2: Table of Contents

    2 table of contents welcome to club gti............................................3 about this manual .................................................4 autosound at its best ............................................5 designing your system ........................................6 component plac...

  • Page 3: Welcome to Club Gti

    Welcome to club gti thank you for purchasing the finest automotive tweeter 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 inf...

  • Page 4: About This Manual

    About this manual because of the performance capability of your gti compe- tition series product, and the variety of potential system con- figurations, we strongly recom- mend that you have the system professionally installed. You will also get a better warranty if your equipment is professionally i...

  • Page 5: Autosound At Its Best

    Autosound at its best the 08gti has been built to meet the same rigorous stan- dards of construction and perfor- mance that have long estab- lished jbl’s renowned home and professional speaker systems. The 08gti incorporates advanced jbl pure titanium technology which is especially suited to the uni...

  • Page 6: Designing Your System

    Quency music reproduction to beyond 20,000hz, high output capability, and a clean sound that cuts through road noise. Designing your system the availability of separate components makes a variety of system designs possible. Because of its wide-range design and variety of mounting options, the 08gti ...

  • Page 7: Component Placement

    08gti as an add-on tweeter. To use the 08gti as the primary high frequency transducer in a high quality system, we recom- mend you use either a high qual- ity active crossover such as jbl’s gtx47, or gtx2. If you prefer passive crossovers, we suggest a complete 408gti or 508gti system which includes...

  • Page 8

    1. The most spacious stereo image is achieved when the 08gti’s are placed as wide apart as possible. 2. The best center image will be achieved when the distance from the left speaker to your left ear is as equal as possi- ble to the distance from the right speaker to your right ear. This is most eas...

  • Page 9: Installation Warnings

    4. The best system integration is achieved when the tweeter is mounted close to the midrange speaker. Installing the tweeter close to the midrange helps smooth the transition from the midrange to the tweeter at the crossover point. 5. You will get the best fre- quency response when the path from the...

  • Page 10: Mounting Instructions:

    Mounting instructions: the 08gti tweeter includes accessories for four different mounting configurations. Take a look at all the possibilities described in the following para- graphs, pick one, follow the steps and you’ll soon be done! Surface mounting instructions a) using the mounting plate templa...

  • Page 11: Surface Mount Installation

    D) twist the tweeter clockwise about 1 ⁄ 4 " to lock it into position. 11 b a d c figure a surface mount installation 08gti owners manual 9/17/98 4:17 pm page 11.

  • Page 12: Surface Angle Mounting

    A b d c 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. Secure the surface angle mount adapter with two 3 ⁄ 4 " sheet metal screws as shown in figure b. B) secure the mounting plate to su...

  • Page 13: Surface Angle Installation

    A b d c 13 figure b surface angle installation 08gti owners manual 9/17/98 4:17 pm page 13.

  • Page 14: Flush Mounting

    Flush mounting instructions a) use a hole saw or other tool and the flush mount template 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 c. Tighten the screw only...

  • Page 15: Flush

    D) secure the mounting plate to the flush mount cup using three 5 ⁄ 16 " screws. Connect the speaker wire to the tweeter. (see figure d) e) push the tweeter down onto the mounting plate making sure to line up the bayonet tabs with the slots in the tweeter housing. F) twist the tweeter clockwise abou...

  • Page 16: Flush Angle

    Flush angle mounting instructions a) follow steps a through c in the flush mounting instructions. B) secure the flush angle mount adapter to the flush mount cup using two 5 ⁄ 16 " screws as shown in figure e. C) connect the 08gti speaker wires (with crossover) to the tweeter. D) press the tweeter do...

  • Page 17: Wiring

    17 figure e e d wiring use 2-conductor stranded type, insulated wire to connect the 08gti to it’s crossover, and the crossover to the amplifier. A minimum wire gauge of 18awg is recommended, with larger size suggested for wire runs longer than 10 feet. The polarity — the positive/ negative orientati...

  • Page 18: System Connections:

    08gti should always be con- nected in the same polarity as the midrange however. It is pos- sible, that due to the difference in the distance the sound travels from the midrange to your ears compared to the distance from the tweeters in a typical system, and the short wavelengths of sound at the cro...

  • Page 19

    Connected in parallel to a full range speaker system. Because the 08gti is specifically designed for high frequency operation, it must have low fre- quencies blocked by electrical means to prevent damage to the speaker. To facilitate this, the 08gti is supplied with an in-line 12db per octave 5khz h...

  • Page 20

    Used, the best crossover choice is the laboratory-optimized, system-matched crossover which is included with the 408gti or 508gti system. If you have not yet installed your components, we suggest that you consult your dealer for this system package. When a crossover such as this one is used, you do ...

  • Page 21

    21 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 recom- mended amplifier power routed directly to the 08gti tweeter is 125 watts rms. In fact, due to the nature of music, and the reduced energy pr...

  • Page 22: A Note On Power

    A note on power handling as a result of their high effi- ciency, all jbl loudspeakers will produce reasonable volume levels in the automotive environ- ment using very little amplifier power. However, the use of a small amplifier to attain very high volume levels could lead to over- driving the ampli...

  • Page 23: In Case of Difficulty

    23 maximum recommended amplifier power listed in the specifications of your specific jbl speaker. This margin of reserve power will ensure that the amplifier will not attempt to deliver more power than its design allows. Your dealer will be happy to point out which high power jbl amplifiers are opti...

  • Page 24: The 08Gti Without One of The

    Be careful not to mount any pas- sive crossover components near wires carrying high currents such as battery cables or wires lead- ing 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 p...

  • Page 25: Specifications:

    25 specifications: frequency response without crossover: 3.5khz - 22khz frequency response with supplied protection network: 5khz - 22khz i.E.C. Power handling with included 5khz protection net- work: 60 watts rms power handling with 3.5khz 18db/octave active crossover: 60 watts rms recommended syst...

  • Page 26: Tweeter Is Angled

    26 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 08gti surface angle mount template 08gti owners manual 9/17/98 4:17 pm page 26.

  • Page 27: Drill

    27 h drill 3 / 32 " (2.4mm) holes for mounting screw drill 11 / 32 " (8.7mm) holes for wire feed through 08gti mounting plate template 08gti owners manual 9/17/98 4:17 pm page 27.

  • Page 28

    08gti owners manual 9/17/98 4:17 pm page 28.

  • Page 29: Cut Hole Using

    29 cut hole using 2 1 / 8 -2 1 / 4 " (54mm) hole saw 08gti flush mount template 08gti owners manual 9/17/98 4:17 pm page 29.

  • Page 30

    08gti owners manual 9/17/98 4:17 pm page 30

  • Page 31

    Jbl continually engages in research related to products improvement. New materials, production methods and design refinements are introduced into exist- ing products without notice as a routine expression of this philosophy. For this reason, any current jbl gti loudspeaker may differ in some respect...

  • Page 32

    Jbl consumer products, inc. 80 crossways park west woodbury, ny 11797 8500 balboa blvd. Northridge, ca 91329 1-800-336-4jbl in the usa made in usa nmgp/n: 302695-001 5/94 ? ?O2@@@6k ? ?@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@? ?@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@? ...