Mike, Dynaudio dealer here. Do try and place out from the back wall 3' if you can. Even a an inch or two can make a world of difference with these speakers. With the side walls out of the way, you have a lot things working for you even with a tighter back wall placement. Room treatments may be necessary, but do not need to be obtrusive.
You have or will be getting a fantastic pair of speakers. The C4 are among the very best out there. Obvioiusly, I have high praises for them. ;-)
You have or will be getting a fantastic pair of speakers. The C4 are among the very best out there. Obvioiusly, I have high praises for them. ;-)