best-sounding class D amp?

I like the Hypex NC500 with Nord Buffers, I have rev. b,c,and d.

It adds a lot of room to tinker, I just purchased a pair of Weiss buffer boards, to couple with NC500, for 5k-20khz duty. The reason I like the 500 over the 1200, they both do 700 watts at 4 ohm, yet the cost is almost double, for something I would never use (a 2 ohm wiring setup), in home stereo.

They are Class A discrete op amps...With Sparco Regulators, VERY QUIET, Sparco, Weiss, SI990, or 995, all great sound.

Sparco, a little more mid heavy, twinkling highs, very dark background.
2590s

SI 995 BLACK BASS.. very well behaved on most bass drivers. Very
clinical in the mids and highs, work very well with a tube front end.

The Weiss, well I have to get them first...I’m hoping for the clearest highs I can find, for under 2000.00 with the new boards...fingers crossed.

No need to wait 10 years, they are here and work quite well.
Just don't get suckered into a bunch of 5-8k talk,,,,
3000.00 tops for the best there is, the rest is pretty much eye candy..

Regards

@noble100 just reminded me of D-Sonic amps (6Moons review).  I confess I’ve not heard them, but reviews indicate they punch way above their weight and have characteristics that please both SS and tube aficionados.  Their M3a-800S stereo amp is good for 400/800Wpc into 8/4Ohms for only $1475 (their cheapest amp I believe) and has me seriously questioning upgrading my McCormack DNA 0.5 Rev A.  I believe they offer an in-home trial, which is obviously really helpful.

I’m also a fan of Bel Canto amps.  I heard a pair of M500 monoblocks driving a pair of Joseph Audio Pulsars and it sounded sublime.  Not sure I’d call them warm but rather just very natural sounding, which very much surprised me.  Changed my impression of Class D amps actually.  FWIW, and best of luck. 

Ive heard good things about the cherry amps, but have never heard them.

I don’t know about “warm” sounding class d amps, but a tube pre-amp used with a Class D amp can achieve that. You want the amp to have 60kohm or higher input impedance to work well with tube preamps which tend to have significantly higher output impedance. I do that with AUdio Research pre to Bel Canto Class D amp. Just a touch of warmth with this combo. 

Also have a similar Bel Canto c5i all digital class d integrated amp. More neutral, not warm at all.

best-sounding class D amp?

Look at PASS amps much better than classl d pass on class d maybe in 10 years it will get better.

Best one I’ve heard so far had been at our club audio meeting, the Belcanto Ref 600M monoblocks which use Hypex NC500 with I believe their own buffer, they were very good into a very high end two-way that used the top Raven ribbon tweeter "almost" livable for me.
Then we put them on a pair of B&W 803D3’s and they were not as well received, upper/mid highs were a touch hard with glare yet subdued at the same time, we concluded that the Ref600’s liked the pure resistive loading that the Raven Ribbon gave around a constant 6ohms, but not the more complex loading the B&W upper range had, because the same B&W’s sounded sweet as with a Pass Labs linear amp we also had there.

Cheers George