I'll soon reoccupy the music room in my house next door. The walls have two layers of 1/2" sheetrock covered with two layers of 1/2" commercial soundboard, with carpeting and acoustical ceiling tile. I've been waiting for a roofer for almost six months, and finally, the nail gun is popping in the background. We've had to wait to finish putting down the hardwood floor in the living room and to paint the walls and retile spots in the music room ceiling due to leaks. I still haven't even hooked-up the 396s, 362s and sub that I got about a year ago. I'll use either my 201s or 250s in the center. The Khorns will go over there for two channel.
I'm still a couple of months of work away, but a lot less frustrated than I have been.