Class D amps that are superior to all or most?

In my listening room, I started with a NAD M12 pre amp/NAD M22v2 amp combo and Tannoy DC8TI speakers.  It took me a while to get the gain setting right, but once I did the sound was nice. The bass was great, mid range was good, but, depending on recording, it was sometimes too bright and not as musical as I would have liked. 

I replaced the M12 with a Herron pre amp, Herron phono pre, and Audio Mirror Tubdour SE DAC (very nice DAC!).  That combination took the SQ to another level - everything sounded so much better.  Not being satisfied, I sold the Herron and AM gear and bought a PS Audio BHK pre amp, DirectStream DAC, and Stellar phono pre. There was a clear SQ improvement - everything sounded so much better.  Not being satisfied, I bought a PS Audio BHK 250 amp.  Now I'm satisfied. 

I still have the M22v2 as my backup listening room amp, and plan to use it with a PS Audio Stellar Cell Gain DAC in another system.  The M22v2 sounds really nice in my main system, but it is not a musical or smooth as the BHK 250.  I could live with the M22 if I had too, I'm happy that I don't.

Pure single ended class A for me, thanks.
Loving my Sugden

I enjoyed my time with later Nuforce/Nuprime designs. They sounded much more natural and liquid than the several other Class D that I tried. Worked well with Tubed pre amp. You do have to select Power cord and power conditioner carefully so noise is not reintroduced into rest of system.

For the 9,999th time:

• Class D frequency response is determined by the load
• A particular amp can sound quite fine with one speaker
• The same amp can sound quite poor with a different speaker

ALL specific recommendations are worthless.

@bondmanp , the HS-500 Arion has a vacuum tube stage linked to the Class D.  I love it!  Never heard of them making amps.  How much is the cost?