I too had m22' with qs4's ever so briefly. I noticed a tonal change when watching movies. If a sound effect went front to back, the tone went up in sound. Not a big deal but it bothered me. I do listen to movies with my speakers set to large, when it the setting was in small the difference in tone was barely noticeable, But I didn't like the overall sound. My room is small as well 12x16x8. I was already going to upgrade to the qs8's and I now have them. The tonal match is near perfect. I can't hear a difference.
