Streaming clarification

[audio_engr]

I have been using an EtherRegen with Farad Super3 power supply (top configuration) as well as galvanic isolation via a Sonore OpticalModule Deluxe V2 (also with a Super3) and Finisar SFPs as well as Audioquest Diamond Ethernet cabling all the way.
But what I really would recommend (there is a 30 day free trial period anyway) is the Network Acoustics Muon streaming system which acts like a noise filter.

Regarding upsampling:
Has anyone directly compared DSD64 vs PCM 192/24?

I got the Ferrum Audio Hypsos (2 units) very recently - one for my Roon Nucleus and the other for my etherREGEN. I also use Finisar SFP and AQ Diamond from Roon Nucleus to etherREGEN and AQ Diamond from etherREGEN to Dev 440 Pro. 

I have to say that once the Hypsos settled in (I also use a Shakti Stone AIR over each Hypsos and IsoAcoustics footers too), it was just absolutely wonderful esp. when you can slightly alter the DC voltage that Hypsos allows and fine tune the sound to exactly zero-in to what you like. 

Directly comparing DSD64 vs. PCM 24/192 ? 
Yes - I have and results vary depending on which Mastering Engineer did the job. For Classical music (that has become my primary music of late), most of the time DSD64 wins.