This is a small room, formerly the "guest" room on the first level. Speakers, equipment and cables stay out of the public living spaces. My Contours would benefit from a larger open space, like our den. Update: Equipment moved to side wall; no longer in-between speakers.
One advantage is that this room is towards the very front of the house and is far away from other bedrooms. I can crank Led Zeppelin at 1am and not impact upstairs master bedroom.
(note: wife reference removed; its about the room, not the wife; peace)
I tried foam diffusers once and they seemed to tame things. Over a few weeks, I noticed some albums weren't quite up there anymore. Then someone suggested foam sounds bad. So I tried removing them, and lo and behold, the music came back to life.