That's one of the reasons I have a simple two channel system, i.e. a good integrated amp and a single source. In another room, I have a multi-channel processor, multi-channel amp, DVD, etc. housed in a armoire cabinet. Man, what a headache that set-up is to move. I do agree that systems seem to require a "settle in" period after they've been moved before they sound right again. I can't explain, but believe its a very real phenomenon. I just moved by two channel set-up to re-paint the room. One tip is to tape the outline of your speaker positions on the floor. It saves a lot of time when you re-set the system.