I used to have the Schiit Yggdrasil, then got to audition the Exemplar Audio modified OPPO. The modified OPPO has a tube utilizing 12AU7 tubes, which I love as I can do lots of tube rolling to dial in the sound, and an outboard linear power supply.
The Exemplar just blew away the Yggdrasil. The Exemplar turned by system from 2D to 3D, with amazingly defined imaging. This seems to be a hallmark with Exemplar products as I heard the same when moving from my heavily modified vintage monoblocks to some Exemplar monoblocks too.
The nice thing about the Modified Exemplar OPPO is you can simply hook a hard drive up to it and use it as a server. Though, I have a nicer server hooked up to it anyway.
I got turned onto Exemplar (
http://www.exemplaraudio.com/) years ago when looking for a preamp. Nothing I tried even came close to Exemplars. They seem to have incredible detail, amazing imagine, and a beauty to the sound that just makes me want to listen. I now meditate with my system on and it really helps. The components I recommend by them are: Tube Preamplifier, Tube or Solid State DAC, Tube Amplifiers, and by far the best headphone tube amp I have ever heard.
I have no affiliation with Exemplar, just a grateful fan, as that company has really helped me enjoy my system to a new level.