I agree with most here that Aavik has the best sounding , most musical class D amps and some of the most expensive. Aavik should be your Benchmark. 2nd place goes to AGD.... IMHO.
+1 @mbmi
I was very skeptical about class D and tried a few class D amps in the lower price bracket. My friend convinced me to give the new line of Aavik amps a try. It truly was a jolt to my belief system. IMO, it combines the best of tubes and SS in a unique, musical package.I ended up selling my tube amp and replaced it with Aavik U-280. As a die-hard tube guy, this is something I would have never even dreamed of just a few months ago.