if you dont have enough space between the 4th/5th and 6th/7th speakers, then there is no point. where you are seated is obviously key. you can use bi-pole, di-pole speakers in a position beside you to create sound behind, in front, and through your listening area. so 7.1 is like i said, only worthwhile for larger rooms where the greater seperation between speakers allows for a more natural recreation of soundtrack.