DSD via USB

[Music or sound]

Explore more, yes. Try David Elias, who has been a proponent of DS for many years now. Either go direct to his webpage where you can get all his music on DSD. But first, I came across him where he has 3 tracks available for free download on the Oppo website https://www.oppodigital.com/hra/dsd-by-davidelias.aspx

'Visions of Her' can be downloaded as DSD, 24-bit and 16/44.1, so that you can compare. I have compared the first and last so far, via Audirvana / MacMini and USB on the Dev 200. The former is far superior in SQ, there really is something to this DSD. It is night and day on my system, so it's possible that, like we had with so many 24-bit tracks being so-so, the quality of the native or converted DSD is going to play a big factor. Being fully DSD, David Elias seems to show off what is good about DSD.

I downloaded these files except mp3 and listened to them all. Good recording but very boring music which makes listening to the same track repeatedly a chore. Via Macbook Pro/Audirvana+ and USB to my D250 all the versions show the correct sampling rate including DSD64 (source button).  The best sound was by far the 88.2/24 WAV file then the Flac version. DSD and 44.1/16 was much less resolved albeit different from each other but I would not venture which one I preferred. 
When I play the same DSD and 88.2 WAV file through my AK120 via optical (toslink) both versions show up at the D250 as 88.2 as the AK120 converts DSD files to 88.2/24. The Wav file was better sounding which means that the Korg Audiogate software makes better DSD to PCM conversions than the internal conversion of the AK120. Comparing the same 88.2 Wav files via Audirvana/USB to AK120/optical both sound quite good: USB more etched detail and optical slightly warmer and softer. Playing the DSD file through the AK120 was quite better than the USB version.
So I think what I am hearing is the effect of different file conversions: Korg, Astell&Kern and Devialet's MAT. It would be interesting to know what MAT really is!