Regarding the VP150 in-cabinet, I guess that’s why it’s not classified on the website as an “in-wall”, it’s about 6” deep so too deep for a standard 2X4 wall. But great suggestion, I hadn’t looked at the in-cabinet speakers. I had hoped to go with an all in-wall setup in front for a more stealth look.

Appreciate the advice re: the QS8's, very helpful. I was wondering about surround setup as well.

If I do go with the M2 I had assumed I’d mount it in its natural vertical position but could I mount it horizontally as well?