User manual JBL GTO755.6

[. . . ] Disconnect the (­) negative lead from your vehicle's battery. · Check clearances on both sides of a planned mounting surface before drilling any holes or installing any screws. · At the installation sites, locate and make a note of all fuel lines, hydraulic brake lines, vacuum lines and electrical wiring. Use extreme caution when cutting or drilling in and around these areas. [. . . ] NOTE: When using the high-level inputs, the AUX outputs can be used to pass a linelevel signal to another amplifier. Wire Gauge Chart Amplifier Maximum Model Current Draw GTO75. 2 34A GTO75. 4 85A GTO755. 6 87A GTO301. 1 40A GTO601. 1 69A GTO1201. 1 115A Minimum Wire Gauge #10mm2 #10mm2 #10mm2 #10mm2 #16mm2 #25mm2 These recommendations assume 1, 5m à 2, 5m wire runs. If your installation differs markedly, you will need to adjust the wire gauge accordingly. Important Note: If you are planning to use optional neon tubes, install them before making any electrical connections to the amplifier (refer to"Installing Neon Tubes" on page 6). Figure 1. Terminal connection end plate. 2 APPLICATIONS ­ GTO301. 1, GTO601. 1 AND GTO1201. 1 The GTO subwoofer amplifiers are single-channel amplifiers. There are two sets of terminals to make it easy to connect multiple woofers. Either set of (+/­) terminals may be used when connecting woofers. To the right are two application diagrams to help plan your subwoofer system installation. Figures 2 and 3 show how to configure the GTO subwoofer amplifiers (models GTO301. 1, GTO601. 1 and GTO1201. 1). NOTE: For simplicity, Figures 2 and 3 do not show power, remote and input connections. NOTE: Minimum speaker load is 2 ohms. GTO Amplifier (partial end panel) GTO Amplifier (partial end panel) + ­ ­ + + ­ Subwoofer Subwoofer Subwoofer Figure 2. GTO subwoofer amplifier with one woofer connection. APPLICATIONS ­ GTO75. 2 The JBL GTO75. 2 amplifier can be set up for stereo or bridged-mono operation, as shown in Figures 4 and 5. HP LP FLAT NOTE: For simplicity, Figures 4 and 5 do not show power, remote and input connections. Minimum speaker impedance for bridged operation is 4 ohms. HP LP FLAT MODE FREQ MODE FREQ GTO75. 2 (partial end panel) GTO75. 2 (partial end panel) + ­ ­ + ­ + Figure 4. GTO75. 2 amplifier set up for bridgedmono operation. 3 APPLICATIONS ­ GTO75. 4 The GTO75. 4 can be set up for stereo 4-channel, 3-channel or bridged 2-channel operation, as shown in Figures 6 through 8. NOTE: For simplicity, Figures 6 through 8 do not show power, remote and input connections. Minimum speaker impedance for bridged operation is 4 ohms. Figure 6. GTO75. 4 amplifier in 4-channel (stereo) operation to drive front and rear full-range speakers. Figure 7. GTO75. 4 is set up for 3-channel operation to drive a set of full-range speakers and a subwoofer. Figure 8. GTO75. 4 used in bridged 2-channel mode to drive a set of components or subwoofers. 4 APPLICATIONS ­ GTO755. 6 The GTO755. 6 can be configured for 6-channel, 5-channel or 3-channel operation, as shown in Figures 9 through 11. NOTE: For simplicity, Figures 9 through 11 do not show power, remote and input connections. [. . . ] Using a Phillips screwdriver, remove all screws on the amplifier's output/power end panel and set them aside. Using a 3/32-inch Allen wrench, remove only the screws on the amplifier's (top) clear cover and set them aside. Using a round end, press two clips onto each neon tube (e. g. , Street Glow AN9 or equivalent), as shown in Figure 13. For each tube, align both clips so the square ends slide onto an exposed extrusion edge, as shown in Figure 13. [. . . ]