Principles of Operation

PRINCIPLES OF OPERATION

The audio unit can be powered up when the key is in RUN, ACC, or START. The audio unit provides audio signals to the speakers, thus producing sound. The audio unit directs the audio signals to the speakers through separate positive and negative circuits for each of the 4 audio channels: LH front, RH front, LH rear, and RH rear. The audio unit provides internal circuit protection for shorts to ground and shorts to battery.

The subwoofer speaker is powered either by a separate subwoofer amplifier (Audiophile) or by the audio amplifier (TREMOR). The enable/clip circuit carries out 2 functions: to turn on the amplifier, and to indicate to the audio unit when the subwoofer output distortion signal reaches an excessive level. The audio unit then reduces (clips) the audio output signal to the amplifier.