I've been lurking here for a while asking the odd question but have now gone out to make a purchase. I bought, Denon 3802 4 x Energy Connoisseur C1 Energy C-C1 Center Energy S10.2 Sub This is going into a room that's about 16x15. I haven't taken delivery of these yet and have thought about replacing the C1's with C3's for the mains. Any opinions on whether or not this is a good idea? Would it be better to keep the size of the woofers the same all the way around? Just a thought I had in my head and wanted to bounce it around in here rather than asking a sales guy. Thanks. Steve. Can't wait to set this stuff up!