I have to throw my 2 cents in while I'm at it. I agree wholeheartedly about the above comments about your center channel. By the time you calibrate your front 3 speakers, the 7's will be loafing along. There's no need for extra amplification. If you'r serious about HT, you've got to create a space for a center that can keep up with your mains. Either that or ditch your current center channel and run a phantom center (if your receiver is able to). Your center and sub make the home HT experience, DON'T skimp there. Virtually all your dialog comes from the center channel and it anchors the front sound stage. I'd wager that there's more info on that channel than any other. No one in their right mind would run a relay race with 2 Corvettes and 1 Cobalt and give the anchor leg to the Cobalt.