I'm now in between QS4 and M3. Since the room is 12x26, but seating position is only 9-10 feet from the screen. The back of the room is just a small play area for my daughter. Therefore, i think M3 should be enough to fill the room. I really like to try qs4, but hanging in the wall is not 'WAF' Stand for qs is way too expensive, but it looks really nice.

Another thing, do you guy put area rug in the front of sitting position? I have tile floor...so sound is echoed. I will put some acoustic panel on the wall to reduce first reflection point, but the floor is problem. How thick should the rug be?

thanks.