I upgraded my digital system from an Auralic G2.1 streamer and sonnet Pasithea DAC to the Grimm MU2 and it was surprising to me the level of upgrade
I would highly recommend it.
Upgrading digital side
I currently own a Jay's Audio CDT-MK2 CD transport and a Holo May KTE DAC. I also stream (mostly files) with a Raspberry Pi (Roon and Audirvana software). These feed PrimaLuna EVO400 preamp and amp and Devore Gibbon speakers.
I am looking to upgrade my entire digital side. I have an extensive CD collection that I will continue to listen to as well as thousands of files.
My budget is around $20,000 and I prefer new equipment.
So far, for DACS, I have been looking at the Grimm MU2, Bricasti M21, Mola Mola Tambuqui and the DCS Lina. For server/streamers, Aurender N200 or N20 and Innous Stream 3. I know that the DACS I mentioned also stream, but I'm not sure that I want to be completely tied to Roon or Audirvana. I like the idea of internal storage for my files.
Finally, I am also considering the Luxman D-07X SACD player, which has a USB input where I would connect a streamer. I'm wary of the quality of the DAC in the Luxman, especially for streaming.
Any advice on the best combination of the above (or something I haven't looked into yet) would be greatly appreciated.