Griffin notes that at link.

by R. Proffitt Moderator - 8/13/12 6:34 PM

In Reply to: I think they are 5.1 decoder? by hochun0809

http://www.griffintechnology.com/support/article/audio-itunes-only-playing-through-2-speakers?backref=node%2F618&backref_title=FireWave

Seems you can get surround sound but most content I see is stereo. But you can sort that out.

I'd stick to companies that focus on the Apple products.
Bob