Here's what I wrote about this back in September post #272 re my iMac via USB using DX7s:
I also wanted to report on interesting findings on using Audirvana and HQPlayer/Roon on the DX7s via USB on an iMac. My music library is mostly ALAC 44.1/88.2/96/176/192. On Audirvana Plus (latest version) I can get PCM upsampled to 705/768, but I get dropouts and clicks at that setting. PCM upsampled to 352.8/384 works fine and sounds very good. On DSD upsampling of PCM files, I can get to DSD256 but again I get clicks and dropouts. No such problems when upsampled to DSD128. On the DX7s in Audirvana Plus upsampled to DSD128, I get strong sibilance on female vocalists, but less so on PCM 352.8/384.
Using HQPlayer/Roon on the DX7s, I can easily upsample PCM to705/768 and DSD256 (the max available on a Mac) without any dropouts or clicks, and no sibilance.
Now, in Audirvana I still can't upsample PCM beyond DSD128 without dropouts, but I can upsample PCM to 705/768 without problems. No clicks either way. And that is using tracks in mostly ALAC on my hard drive or streaming Flac via Tidal or Qobuz. No change or problems at all in using HQPlayer/Roon or Roon alone using DSD256 or PCM 705/768. HTH.
Yes I'm having no problem at all playing DSD in Roon just on it's own without HQ player.