i have the aperion power towers (with 8in built in sub each), 533 aperion vac center channel, aperion in walls for surround, and also an aperion 10in sub in my 5.1 setup. my room is kind of large 14x25x10ceilings with an opening into a dining room 10x14. i know i have to play around with the settings but what would you guys set up the left and right main as Speaker Size--(1.) LARGE excepting a full frequency 2. SMALL with a crossover at 40hz 3. as L + R + SUB which the 970 manual says sends a full range singal + lfe signal to the mains as well as the sub. Mind you with 3 subs in this setup i have plenty of bass and i could easily dial in more bass with the volume gains, but what i'm looking for is the ideal setup. which of those 3 setting you go with? 1 2 or 3?