Anything wrong with PS Audio DirectStream DACs?


I'm counting right now 19 (nineteen) PS Audio DSD DACs for sale (new and used). Strange. Some second owners also selling... The reviews are unanimously stellar.

I wonder why.
cbozdog
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.
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.....
Well here is a quote from designer/engineer Ted Smith about his burn in preference... from PS Audio forums...

tedsmith Chief digital guru Jan ’18

I hear the things I like about the DS and DS Jr right out of the box. Some others don’t like the sound as much out of the box.

When I had my very burned in test DS and got another new one the new one sounded covered, muffled and a little dull. I let it play continuously for a week or two and then it sounded much better. The bass firmed up, the top opened up the presentation got more balanced, etc.