DA 4002 (serv.man2) - JBL Car Audio Service Manual (repair manual). Page 4

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Controls and Connections
Controls and Connections
Mounting the Amplifier
1. Preamp-Level Input Connector - Connects to
   line-level output the source unit
2. Speaker-Level Input Connector - Use this
    connector for speaker level input signals.
    A wire harness is supplied use with this
    connector. See"Typical System Configuration"
    Section (page4)for wiring instructions
3. Speaker Output Connector - Connect speaker
    wiring to these connectors. See wiring instruc-
    tions on page 4 for more information.
4. Fuse - 15 Amp attached type Fuses.
The JBL Decade Series amplifiers can be mounted in virtually any location inside the vehicle.
However, make sure to keep the amplifier away from heater vents or ducts.
1. At the chosen site, use the amplifier as a mounting template and mark the locations of the 
    four mounting holes.
2. Drill a small pilot hole at each marked location.
3. Mount the amplifier and securely tighten the mounting screws.
5. Power Connection for 12v+,GND and REM
    connections for power wires. See wiring 
    instructions on page 4 for more information.
6. Input-Level Control - Adjusts input sensitivity
   for pre-amp level and speaker level inputs.
8. Bass E.Q. - This switch activates a built-in Bass
    Boost circuit used to increase low-bass output
    on the selected speaker output group. Enables
    bass boost +6dB@50Hz
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Multichannel Automotive Amplifier
DA 4002
7. Crossover Selector - Determines wheth the
    crossover is a High-pass filter @120HZ(HP),a
    Low-pass filter,@120Hz(LP) or unfiltered (FLAT)
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