Gustard R26 search over!
this dac checks all your boxes and then some.
I have had mine for four months and when I tell people how it is in simple form I say it’s musical with huge sound stage. I can listen for hours with zero fatigue and after break in it is like my Vandersteen’s are four time bigger.
Then throw in a built in streamer, and you can connect up an external clock. In your price range this dac has been compared with $5000 dac’s by reviewers and went toe to toe with them.