Just a thought. To go from 5.1 to a 7.1 system in this small room of mine, (Why? Because I can), I thought about sometime buying some in-ceiling speakers that pointed down behind the seating position, then I started wondering about the in-wall M2's. Don't know if anyone has mounted the in-wall M2's in a ceiling before. If so, how does that work for you?

https://docs.google.com/spreadsheet/ccc?...amp;usp=sharing