What i want to know is does it really matter what type of speakers you use as a 5.1 setup, i have an old sony center speaker from the pro logic days as well as a pre-powerd sub, some acoustic soloutions for the front's and some music sound's for the rears, it all sounds excerlent to me i couldnt pick any faults if i tried. I like the acoustics up front cos they sound good in stereo when i have radio on or i'm on my decks there very clear and bassy even though the speakers are only about 6inch. the rears are about 3inch in quite big boxes. Any way are new speakers developed for home cinema like DD & DTS to give a better digital sound or are they just like everyday hi-fi speakers. Cheers.