room is 15x15 in a couple of weeks im gonna be getting a new reciever and/or seperates. There either gonna be 7 channel or 8 channel. I tried looking at the dolby digital site for speaker placement help and i got confused even on the 5.1 side cause there rears werent behind they were directly across from the person. Then the 7.1 picture confused me even more cause i was starting to wonder if that was really how there supposed to be. Can anybody explain to me how 7.1 and 8.1 is supposed to be set up? were the front effects are supposed to go, where the rears should be once front effects are there? in these pictures http://dolby.custhelp.com/cgi-bin/do...cGFnZT0x&p_li= the rears of the 5.1 are where i thought the front effects are in 7.1? does that position act as a side in 7.1 instead of a rear like in 5.1 or does the sound comming from it still sound like its behind you? Should i move my 5.1 rears directly across from my ears or should i keep them 4 feet behind me on an angle facing my head? Also does 7.1 actually help or is it just for crazy people/people with large rooms? I cant really think of anywhere to put, there's no backwall behind me its just openness so right now i have my rear center sitting on the pool table and i wouldnt really have anywhere to put 2 rear centers.