Slightly below your price point, there are three amps that have been VERY highly regarded: (1) the Odyssey Stratos (~$800 used with the upgrades), (2) the Belles 150A Hot Rod (~$950), and (3) Monarchy Audio's SM-70 (use two as monoblocks) and SE-100 monoblocks. There is currently an ad for the SE-100's ($850) and an a couple for the Belles 150A. The Odyssey is tough to find on the used market, but can be had new for around $1000 factory direct. I've heard all three amps, and they really perform at a level far beyond their price point. All three were Reviewer's Choices (Soundstage). I really think you can't go wrong with any of them. I am currently using the Belles with a tube pre, and it is heavenly sounding. FYI, the power ratings are: Odyssey - 180W, Belles - 125W, SE-70 - Not sure, but it's pure class A, SE-100 - 100W. Best of luck!