Orchard audio has been getting a lot of good press and reviews and they probably deserve high praise for the value they apparently bring. I have owned quite a few Class D amps and the best I have heard is from AGD. They are quite expensive but are the leading edge of Class D and in particular GaN amplification, imho. Rogue, Jeff Rowland, Bel Canto, all make Class D amps based on Hypex, Purifi, Pascal and there might be others. I owned Rogue, Bel Canto and Jeff Rowland, and of these three the Jeff Rowland sound best. I had two of their 125 models set up as mono blocs. Lots of power and built like tanks. I believe Orchard offer a 30 day no questions ask return policy. Give it a try. Good luck.