4 & 5. QBASSTM 1 and QBASSTM 2 Freq.: Use these switches, QBASSTM 1 and QBASSTM 2 to program the QBASS PLUSTM circuit frequency.
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7.RCA Output: RCA outputs provide HP/LP/FULL
8.Rear Inputs: Plug in the rear RCA leads from your source here.
9.Front Inputs: Plug in the front RCA leads from your source input here.
10.Front Gain: Use this control to match the output level of the source unit to the front channel of the amplifier.
11.Front Freq. Control: Move this detented control in a clockwise direction to adjust the front crossover frequency from 30Hz to4kHz.
12.Front HP/LP/FULL Switch: Select the desired crossover setting. HP/LP/FULL for the speaker output signal of the front channel.
13.Rear Source INT/EXT Switch: Select the INT position (switch in) if you want to use the internal signal path from the front crossover for the rear input, or the EXT position (switch out) to use the external rear RCA input.
14.Rear HP/LP/FULL Switch: Select the desired setting. HP/LP/FULL for the internal signal from the front channel to the rear channel when not using an external rear RCA input.
15.Rear Gain: Use this control to match the output level of the head unit to the rear channel of the amplifier.
16.Rear Freq. Control: Move this detented control in a clockwise rotation to adjust the rear crossover frequency from 30Hz to 4kHz.
17.Rear HP/LP/FULL Switch: Select the desired crossover setting, HP/LP/FULL for the speaker output signal of the rear channel.
18.Source Sum/Rear Switch: Select the SUM (switch in position) if you want to use the RCA output information summed from the front and rear audio channels. Select the REAR (switch out position) to select the input off of the rear channel, providing bandpass capability.
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