Great site!! I've been lurking in here now for a month or so, and finally got the nerve to ask a question. I have a Yamaha RXV3000 and need a suggestion for the center rear surround. I don't want to buy 2 speakers and only use one, and I don't want this feature to go to waste. I currently have some 8 yr. old Bose cubes for my rears, but will be upgrading to Polk fx300i, or the 500i. Thanks, Andrew.