dCS Bartok vs Aurender A20

These two appear to be direct competitors in functionality and price, yet I can find no comparison discussions or reviews. Any A’goner’s with experience care to chime in on SQ and amp synergy?

They are both TOTL streamer/dac/pre’s with headphone output. with different but excellent OS’s. dCS does MQA but that’s a distraction not a comparison point. Pros and cons of dCS/roon vs Aurender Conductor are well documented, no need to rehash that.

If you’ve listened to both and found good amplifier pairing, please share your experience.