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KEY TO CALLOUTS
1.Power LED - Indicates amplifier power.
2.Subsonic / Hawkins Bass Control Switch - Select “SUB SONIC”to engage the Sub Sonic filter at 13 Hz. Select “HAWKINS BASS CONTROL” to engage the subwoofer channel’s high pass filter @ 45 Hz with +6 dB boost for optimum bass.
3.High Pass XOVER Switch - (Channels l&Z) Select “IN” for use with the internal crossover or “OUT” for use with external crossover.
4.High Pass XOVER Switch - (Channels 3&4) Select “IN” for use with the internal crossover or “OUT” for use withexternal crossover.
5.Subwoofer Channel Input Select - Selectable inputs; “CH
6.Channels 3814 Input Select - Selectable inputs from internal (CH l&2) or external (CH 3&4 local RCA inputs).
7.Amp Mode Switch - (Channels
8.Inputs - Right and left channel RCA inputs for channels 3&4.
9.Input Level - Channels 3&4 input level control.
10.High Pass Filter Control Adjustment - (Channels 3&4) crossover fre- quency control for the internal high pass filter.
11.tnputs - Right and left channel RCA inputs for channels l&2.
12.Input Level - Channels l&2 input level control.
13.High Pass Filter Control Adjustment - (Channels l&2) crossover fre- quency control for the internal high pass filter.
14.Low Pass Filter Control Adjustment - (Subwoofer Channel) crossover frequency control for the internal low pass filter.
15.Sub Input Level - Subwoofer channel input level control.
16.Speaker Connection Terminal - Speaker connections for Subwoofer Channel.
17.Speaker Connection Terminal - Speaker connections for Ch’s 3&4.
18.Speaker Connection Terminal - Speaker connections for Ch’s l&2.
19.REMOTE - Remote
20.GND - Main ground connection. Bolt to a clean chassis point in the ve- hicle.
21.+12V - Connected to a fuse or circuit breaker, then to the battery’s posi- tive terminal.
22.Main Fuse - Main power supply fuses.
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