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Фрагмент инструкции
Failure to adequately protect the positive wire from potential damage may result in a vehicle fire. When you are done routing and connecting this wire, you may install the fuse at the battery. Remote Connection Connect the amplifier’s Remote (REM) terminal to the source unit’s Remote Turn- On lead using a minimum of 18-gauge wire. NOTE: When using the speaker level inputs, connect the remote (REM) terminal to the source unit. If your source unit does not have a remote turn-on connection, connect the amplifier’s (REM) terminal to the vehicle’s accessory circuit. Speaker Connections Refer to the application guides on the pages that follow. Speaker connections should be made using a minimum of 16-gauge wire. High-Level Input Connections The GTO75.2, GTO75.4 and GTO755.6 amplifiers are equipped with speaker-level inputs that allow you to add an amplifier to head units that do not have RCA line outputs. The speaker outputs for the source unit should be connected to the amplifier using the supplied connector (square four-wire plug). Remember to check for proper polarity. The GTO301.1, GTO601.1 and GTO1201.1 amplifiers are not equipped with high-level inputs. NOTE: When using the high-level inputs, the AUX outputs can be used to pass a line-level signal to another amplifier. Wire Gauge Chart Amplifier Maximum Minimum Model Current Draw Wire Gauge GTO75.2 34A #8 AWG GTO75.4 85A #8 AWG GTO755.6 87A #8 AWG GTO301.1 40A #8 AWG GTO601.1 69A #6 AWG GTO1201.1 115A #4 AWG These recommendations assume 7' – 10' 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). 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. 3 GTO Amplifier (partial end panel) Subwoofer – + MODE FREQ HP LP FLAT GTO75.2 (partial end panel) + – GTO Amplifier (partial end panel) Subwoofer Subwoofer + – – + Figure 2. GTO subwoofer amplifier with two woofer connections. Figure 3. GTO subwoofer amplifier with one woofer connection. Figure 4. GTO75.2 amplifier set up for stereo operation. Figure 5. GTO75.2 amplifier set up for bridgedmono operation. 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. NOTE: For simplicity, Figures 4 and 5 do not show power, remote and input connections. NOTE: Minimum speaker impedance for stereo operation is 2 ohms. Minimum speaker impedance for bridged operation is 4 ohms. GTO75.2 (partial end panel) MODE FREQ HP LP FLAT + – – + 4 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. NOTE: Minimum speaker impedance for stereo operation is 2 ohms. 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. Subwoofer Rear Front – + + – + – 5 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. INPUT MODE switch: • Use INT (internal mode) to send a signal from the front and rear inputs to the subwoofer. • Use EXT (external mode) when sending a dedicated signal to the subwoofer inputs; e.g., if your source unit has a subwoofer output. NOTE: For simplicity, Figures 9 through 11 do not show power, remote and input connections. NOTE: Minimum speaker impedance for stereo operation is 2 ohms. Minimum speaker impedance for bridged operation is 4 ohms. Subwoofer Rear Front Subwoofer R...
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