Gary, can you try setting JRiver to encode everything to DSD and see how that sounds with the Yulong vs regular PCM? I'm curious if that puts it above the indistinguishables.
I had the PureDAC for a couple of weeks, and it was great. Mine had a faulty USB port, I think, because it had lots of issues getting connected without several reboots and re-plugs. The built-in amp is adequate. Not as dynamic as Mjolnir, and not as great in the bass region, but worked well enough with my LCD-X. I'd love to hear what you think of it vs the Yulong.
Interested to see Gary's test on Yulong DA8 (JRiver to encode everything to DSD and see how that sounds with the Yulong vs regular PCM)
I did a test with JRiver's on-the-fly PCM to DSD conversion, feeding Hilo. My finding is that the sound changed, especially in high freq region, lost some clarity, and becomes not as 'sharp' as original PCM. With Hilo I prefer original PCM.
Glad to know that DA8's excellent DSD playback, looks like a killer, and consistent with other reviews (Project86, ...).