I know this is probably a pretty silly question to the more advanced HTF buffs here, but I have a question re: using a center speaker for rear center sound (for 6.1). I have a 5.1 set-up, and I recently received an unexpected gift of a Yamaha NS-C125 center speaker. (I don't even know how good this speaker is, sound quality-wise). Anyway, I just purchased a new receiver (a Panasonic XR55), which enables 6.1 sound. Can I use the Yamaha center speaker as a REAR center speaker (for 6.1 tracks)? Does it matter that this speaker is, I assume, meant for FRONT center channels? Does it being meant for the front center mean that it wouldn't "work" or at least would work poorly being utilized as a rear center speaker? I appreciate any insight any of you speaker gurus out there can give. (And, in my case, pretty much everybody knows more than me about such things and, therefore, qualifies as a "guru." Thanks!