Kahuna,

Until someone writes a specific review of the 7500/7700 you might want to research reviews of ATI's 2005 and 2007. The Outlaws and ATIs appear to be identical from a performance standpoint and there are other posts that note they really are the same amps. I've owned my ATI 2005 for a couple of weeks and I'm very pleased how it works with my 990. Sound quality?? Well the 990/2005 combo just overwhelms my Pioneer Elite receiver. I'm no critic, but my Elite sounded thin to the full sound of the 990/2005. It was that thin sound that started my upgrade to my current speakers and 990/2005. My move to seperates was pretty dramatic and after the setup was done there never was any doubt the Elite was headed to eBay. One last observation: I'm listening to 2ch music after a long drought because of the quality of these components.