I need help w/ speaker placement and tweeking. I just got Polk r40s as my mains. I have RCA surrounds and a RCA center channel. I have a RCA Dolby Digital 80x5 receiver and an Audiosource eq. I will get a klipsch ksw-200 soon. I use my xbox as a cd/dvd player and have an older Sony Triniton, which had a great picture. Up till now, I have used only stereo mode, but I want to use dsp for movies and music. So I want to get the most out of all my speakers now. How do I tweek my HT to get the most out of it? My room is 10.5 by 12. The HT is on the 12 wall and I sit on the opposite side against the wall and in the middle. So please help me tweek my system. I know I have to calibrate it and set all the speakers to 75db. How/where should I place my floorstanding mains? I use 16 wire for the mains, do you recommend going w/ a bigger wire? Any other suggestions? Thank you.