I didn’t like the Sphinx much at all. Had a few other class d amps and the Lyngdorf was the only one that sounded good ONLY when the room correction was engaged. Otherwise it was just eyyy. It was perfection at times but only with high efficiency speakers. Would be curious to hear some class d that impresses me.
all the other class D I have owned (probably 3-4?) did not scale up right when the volume got cranking despite their high power rating. Don’t know why that was but they got glassy sounding. Bass was pretty damn good though.
The Pharaoh is one the intrigues me although I would only spring for the 1st version used.
I have no doubt done right class D can be very good.