Apple-centered Home Theater

Hey guys,
Anyone know of a good 7.1 speaker interface system for the Mac, and
happen to know if iTunes supports 7.1 or even 5.1 at all?

Thanks in advance,
Bert

I would think support for 7.1 or 5.1 is more reliant on the audio itself combined with what audio interface you have.  It relies much less if at all on the app.