bluorion OP
Are there ’high end’ Class D amps out there that are just as good as Class A, A/B amps?
There is only one so far that has taken Class-D and it’s operation to the technology edge, that "could" even better the best Class-A or A/B’s.
And that is the Technics SE-R1 that uses linear power supplies, the latest GaN devices, and has taken their "switching frequency" nearly 3 x higher than any other Class-D’s have so far, which means 3 x far less switching frequency residual noise and all important phase shift at the speaker terminal outputs.
This 55kg monster has taken Class-D technology to the limit "for now."
https://www.stereophile.com/images/styles/600_wide/public/010517-Technics%20SE-R1-600.jpg
https://cdn.shopify.com/s/files/1/0258/1705/5311/products/parts_image_540x.jpg?v=1586671330
https://www.technics.com/us/products/r1/se-r1.html
Cheers George