I have had the STR-DE635 w/ the included HT speakers for a couple of years now. I just purchased some new front speakers and have a question about proper settings for these. As I said I replaced the small satellite speakers in front with a pair of Sony SS-M7A's.SS-M7A's STR-DE635 My question is in my receiver setup, should I change my speakers from small to large? I am still using the sub that came with the system. It seems like I should set them to large, it sounds better that way, but I want to be sure, I won't damage the new speakers. If I should have it set to large, should I keep it that way for both listening to music and 5.1 movies? Should I have them on large for music with sub off and small for movies with sub on? Also,I have noticed people saying they put out 80x2 at 8ohms, I have turned the selector on the back of the receiver to 4ohms, since the speakers say they are 6ohms. Does this change the output? I hope these questions are not too dumb even for the basics area. Thanks in advance.