Are you talking about having in-wall as part of your home theater? Or in addition to your home theater providing stereo sound to another part of the house?
I've heard some partial and total in-wall and in-ceiling home theater set-ups and in my opinion one must sacrifice a fair amount of sound quality to get the speakers flush with the wall or ceiling. We have stereo speakers in the ceiling of our bedroom as part of a multi-room stereo system that sound "OK" and I'm glad I got them - but they don't come close to my M22s in terms of hearing the nuances of the music or setting a sound-stage. I have heard some pretty good in-ceiling speakers at a friend's house but I decided not to spend a lot of money to get a better soundstage in my ceiling...
I'm looking forward to the new offerings from Axiom for wall and ceiling.
