Thank you all. I realize from all these helpful posts that the way to go in digital is very far from consistent among audiophiles and the audiophile press. The articles I've been reading make my head spin - too many options, I suppose. I should have stated in my initial post that I am trying to find something as plug and play as my SONOS. I had been watching a YouTube video on ripping CDs to a Bryston unit and it looked like a nightmare getting the metadata right. I've heard that raspberry pi and the like (Bryston) are tough to optimize. Ricred, is the Antipodes easy to use? Rbstehno, how do you like the PS Audio DirectStream? Williewonka, yes 24/192 is my focus. In regard to the Blue Sound, I'm not sure it would be a quantum leap from my modded SONOS. Thanks again, everyone.
Which server / renderer to buy?
I listen mostly to rock and jazz using a Rogue Audio Cronus Magnum with KT120 power tubes. I listen to both vinyl and digital. My digital streams my music library or Tidal via ethernet CAT6a from my iMac to a W4S modified SONOS Connect thru a Schiit Audio Gungnir Multi-bit ("Gumby") DAC. My speakers are Spatial Audio M3 Turbo S with a Paradigm sub. My room is 17' x 24', but I listen close up - 10' from the speakers / speakers 3' from the wall. I'm considering an upgrade of the SONOS because I would like to stream hi-res and have greater capacity (my library is larger than the SONOS metadata capacity). I'm thinking about the Aurender N100H. Any suggestions? Thanks.