Someone else told me also what chesseroo mentioned when I asked about the THD that it was mostly just a number and at all levels mentioned I wouldn't hear it anyway.
From all my research and as far as I can tell the Sunfire is considered a "good" piece of equipment.
If I were to add a 2 channel amp for the mains of around 400W or maybe even some d-sonic 525W would my center channel become lost in the mix. I did have someone tell me that if I went that route I should power all three front channels with the same amount of power but I just don't know about all this stuff, that's why I'm asking.
Thanks again.
