I second that advice about the sub volume control.

I had similar problems with 3805 autosetup. When My Sub volume is high (in my case 10 o'clock) the autosetup maxed all and did not seem to work properly. When I reduced that to 9 o'clock it worked much better. Now my speakers all have different settings and it sets the sub at -6. I manually raise the Sub by 1 DB though.

I find that the Auto setup yields very similar results to the Manual setup using RS Meter.

------ M80, VP150, QS8 Surr, QS8 Back Surr Sunfire Amp -M80, Denon 3805 -all else, SVS 20-39 PC+