Just set up this receiver as a replacement for a prehistoric JVC. Everything is working great, but I wanted to point out a solution to a problem I had as well as ask a couple of questions.
First, the problem and it's solution... I had initially set this receiver up with a Polk sub and speakers using the front L and R inputs/outputs on the SUB, instead of using the line out directly to the SUB. This is what was recommended by Polk and how I had it set up for years w/my JVC receiver. After using the MCACC, it correctly set my front speakers to Large, and SUB to none. While all the levels were correct, this created a delay on ALL the LFE stuff that was driving me insane until I figured out what was going on.
If you run into this, just use the line out directly to the sub and the front L/R speakers. All better.

Now here's my first question... My Polk sub has it's own volume knob and a LowPass Filter knob. I currently have these both set in the middle, and the MCACC settings have the crossover at 100Hz. Am I "doing it right"? Is there a better setting for those knobs on the sub itself?
Second and final question: Can I just leave it on Digital Auto and forget it? In that mode will it switch to Dolby ProLogic if it's not getting a Dolby Digital or DTS signal?
Thanks for any input!
-R2