Help me determine if my idea is pure insanity or a good idea. First, speakers are managed by a HK AVR525. I currently have a 7.1 arrangement (front r and l, front center, surround, surround back r and l plus subwoofer.) Here's the idea. Somehow integrate a surround back center into the current configuration. Good, bad, insane. If good would using a center type speaker be best or should I use the same type of speaker used in the surround back r and l positions. Next, what would be the best way to hook this speaker up so that power was not unduly drained from the receiver. Thanks in advance.