@daytrader I purchased this one almost 1 year ago: Premium GaN 6.5 Balanced 2-Channel Amplifier 200W RMS into 8 OHM X 2 - GREY - Class D Audio
I had an issue at first that was likely due to my error using the jumpers in the back to change input sensitivity (a nice feature). Vendor replaced the unit promptly and clean sailing ever since.
It's a small shop it seems but vendor was very responsive to my email communications during iniital trial period.
As per the sound, I can't wax poetic at the moment but will summarize the results as being comparable to moving to a high quality 4K picture from regular HD. Results are top notch in all regards with both my big Ohm F5s and my KEF ls50 metas. Like a haze was removed from the music and it all is there now to soak in. Sound to me subjectively is comparable to teh best tube and other SS amps I have heard. REcordings I have heard many times over the years are now at a higher level, the bar has been raised. So you can tell I am a fan and can easily recommend. I also still run a current model Purifi amp and a Bel Canto Icepower c5i that is several years old now. I enjoy them all but the Class D Audio is the go to. I've owned many other amps over the years prior, attend concerts of all kinds and audio shows regularly, and can say with confidence I have heard it all over teh years. Hope this helps.