Aw, man -- that's a tough room to tame! You don't have much space in the rear for a triple threat. You may have to get creative. My first thought is to turn one of the subs into a portable coffee table during critical listening sessions. And when you're done, slide it behind the couch. I realize that sounds kinda crazy, but there doesn't seem to be a permanent solution beyond keeping your speaker setup as is.
Once upon a time, I owned a single double trouble and parked it on the wall so it would be out of the way. During listening sessions, I moved it in between my speakers. So yeah, I've sort of been there.
