Note the Ground point of Wiring. A Single Point Ground is a must. Even though the chassis of the vehicle as a whole is (-ve), never connect the ground wire to other than specified point here. All the 4 ground wires should be connected to this point, as shown in figure; otherwise, Audio Distortion will occur, especially to higher volume levels.
1. It allows left and right input channels to be connected to the amplifier using RCA plugs.
2. Speaker Output Connector - Connect speaker wiring to these connectors.
3. Fuse - 40Ax3 Amp ATC type Fuses.
4. Power Connection for 12V+, GND and REM connections for power wires.
5. Input-Level Control - Adjusts input sensitivity for pre-amp level and speaker level inputs.
6. The electronic crossover is a 12dB/oct. Low pass filter which can be set at any frequency between 32Hz and 320Hz.
7. The bass boost control will provide up to 6dB of boost at 50Hz.
8. It allows left and right input channels such as high level speaker output signals to be the amplifier.
9. The JBL BP 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.
* At the chosen site, use the amplifier as a mounting template and mark the locations of the four mounting holes.
* Drill a small pilot hole at each marked location.
* Mount the amplifier and securely tighten the mounting screws. Never allow any metal part of the amp's case, to come in contact with the metal body of the vehicle; to avoid an alternate 'Ground' connection other than specified by the wiring diagram. Use non conductive material to attach the Amp with vehicle. Do the same with all other attached devices with amplifier.