I just picked up a Sony SA-WM20 from a friend for a cool $40. Seemed like a good idea seeing as I had no sub at the time. She says she'd only used it twice in the last year or so. I hooked it up, enabled the sub on the receiver, kicked on the power, and stuck in Two Towers (Battle at Helm's Deep to be precise). Sub sounds nice! But I have some questions regarding proper setup of this thing, and how to make it sound better... It's got 3 controls on the top of it: Phase (normal or reverse) Cut off freq. (50hz to 200hz) Level (Min to Max) What's the proper setup I should be using for this? I've got no idea what PHASE or CUT OFF FREQ. Should I set the levels on the sub itself or on the receiver, or both? I've got a Sony STR-DE885 receiver and a fairly small room (20x30). Also, what are some scenes in movies I can watch to really test this sub out and see what it's capable of? I'm not expecting much for $40 anyway! Thanks for any advice!