Instruction/ maintenance manual of the product GT4.0c JBL
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GRAND TOURING SERIES GENUINE JBL A utomotive Component Systems G T4 . 0c, G T5 . 0c, G T6 . 0c Owner’s Manual GT4.0c, 5.0c, 6.0c OM 7/16/98 9:54 AM Page 1.
Thank you for purchasing a JBL Grand Touring 2-way Component System. We’ve organized this manual to make your installation as simple and trouble-free as possible.
03 Component System Parts Your new Component System consists of the GTC04 neodymium magnet tweeter and either a 4", 5-1/4", or 6-1/2" midwoofer. Both the GTC04 and the midwoofer have high-quality passive crossover parts already built into them.
04 IN-LINE CROSSOVER (DO NOT CUT OR BYPASS) GTC04 WIRING HARNESS CONNECT TO AMPLIFIER 2 1 Line up tab with slot on bracket Push tweeter into bracket and turn clockwise 2 1 FLUSH MOUNT Midwoofer Terminal Block Connect to Amplifier or head unit Lead from GTC04 tweeter Small 0.
05 T weeter Output Level The GTC04 is a very efficient tweeter. If there is a need to lower the tweeter output level, a pair of 4 ohm / 5 watt resistors can be connected in series with the GTC04 as shown in Figure 3. To avoid short circuits, make sure that heat-shrink tubing or electrical tape is used to cover all exposed wiring.
06 Installation of the GT4.0c woofer as shown in Figures 4a and 4b. Removable Mounting Ears on GT4.0c Bend up and down repeatedly to break off or use tin snips. • Some Toyota installations may require mounting ears to be removed from opposite sides.
07 Mounting Hooks Mounting Ring Foam Gasket Mounting Slots Rotate to Lock Rotate to Lock Rotate to Lock Slots for Mounting Hooks Mounting Hooks Mounting Ring Foam Gasket Mounting for US 6-1/2" Ho.
08 Hole Cutout Clips Mounting Surface Figure 5d Figure 5e Mounting the GT6.0c woofer in 165/170mm DIN (European) installations using the Intermount II clips shown in Figures 5d and 5e.
09 2. The best center image will be achieved when the distance from the left speaker and the right speakers are as equal as possi- ble from your listening position. This is most easily achieved by placing the speakers as far for- ward as possible. 3. Treble is directional in nature.
10 System Design There are a variety of system options available with the Component System. The simplest configuration is to use them full range with their built-in passive crossovers by connecting them to the output of a head unit or an amplifier (Figures 7 and 8).
11 Installation Warnings and T ips • Be careful not to cut or drill into fuel tanks, fuel lines, brake or hydraulic lines, vacuum lines or electrical wiring when work- ing on your vehicle. Inspect behind panels before you cut or drill. • Make sure that the midwoofer will physically fit in the mount- ing location.
12 A Note on Power Handling As a result of their high effi- ciency, all JBL loudspeakers will produce reasonable volume levels in the automotive environment using very little amplifier power. However, the use of a small amplifier to attain very high vol- ume levels could lead to over- driving the amplifier.
13 Specifications Component Systems Model GT6.0c GT5.0c GT4.0c Grand Touring Automotive Grand Touring Automotive Grand Touring Automotive 6-1/2" 2-way Component 5-1/4" 2-way Component 4&quo.
14 This is an important document. Attach your bill of sale to this page and keep it in a safe place. Your bill of sale is your warranty. The J B L warranty remains in effect for one year from the date of the first consumer purchase unless installed by an authorized J B L dealer.
15 GT4.0c, 5.0c, 6.0c OM 7/16/98 9:54 AM Page 15.
Declaration of Conformity We, JBL Europe A/S Kongevejen 194B DK-3460 Birkerød DENMARK declare in own responsibility , that the products described in this owner’s manual are in compliance with technical standards: EN 50 081-1/1992 EN 50 082-1/3.1995 Steen Michaelsen JBL Europe A/S Birkerød.
An important point after buying a device JBL GT4.0c (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought JBL GT4.0c yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data JBL GT4.0c - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, JBL GT4.0c you will learn all the available features of the product, as well as information on its operation. The information that you get JBL GT4.0c will certainly help you make a decision on the purchase.
If you already are a holder of JBL GT4.0c, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime JBL GT4.0c.
However, one of the most important roles played by the user manual is to help in solving problems with JBL GT4.0c. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device JBL GT4.0c along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
