If your head unit has three pairs of RCA outputs, input Front Left and Front Right in to amplifier Channels 1 and 2 input jacks. Rear Left and Rear Right in to amplifiers Channels 3 and 4 input jacks.
Subwoofer output in to Channel 5. If your head unit has only a single subwoofer output, use a Y adaptor to feed both Channel 5 inputs. Set the Input Mode Switch to 5Ch. The amplifiers preamp
circuitry will automatically mix all the channels and output will occur on all 5 channels. There will be Left and Right balance, Front to Rear Fader with independent subwoofer.
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