Originally Posted by AR-15
there is more than just a HPF switch, theres one that says LP/HP freq, then a seperate HP, and then a switch that says low pass 50-800hz and 250hz-4khz.
Both do the same thing. They are just set up to be able to run 2 channels for highs and 2 for bass
if needed. In your case both switches would be on HPF. the XO won't be turned to the same place but both can be XO'd at 80hz. The bass
boost to the right should both be off and the other switch won't be used since you aren't running it in LPF.
That only leaves the gain knob to adjust.