My current 7 year old set up is m60x2, VP150, 4 qs8, and 2xPC13ultra. I just recently put in a Denon 6200 for 4k and i am now considering going Atmos. My dedicated theater is soundproofed so i do not want to go and make Swiss cheese out of my ceiling. I was considering M2 or M3 on-wall version mounted on the ceiling. I would want to put them on a swivel mount and point down directly at the main listening position (i have 10' ceilings). Would this work? The bracket on the back does not look like it would accommodate. Could i turn these horizontal?

I am also considering replacing the qs8s with on-wall m2 or m3.