Anything wrong with PS Audio DirectStream DACs?

Yes

I own a Directstream DAC and don’t agree at all with the 750 hour burn in.  It sounds great out of the box and you may notice small changes for the first hundred hours or so, but 750 hours...this is excessive and not needed.

My ears and my system tell me different....

It's a great DAC. Very analog-ish with Redcloud or Snowmass firmware.

I listened the the DSJ.   I don't know about the whole burn in concept.   This is a digital device and any thermal stuff seems minimal (at least from my engineering background).   I should have eval'ed a little longer.

1.   Moving to a newer platform made me send it back.
2.   Wanted an integrated (amp) solution.
3.   Wanted room correction (Lygndorf, NAD).
4.   Although, Roon's DSP may make #3 moot..

Still searching for a single one box streamer.....