Is no preamp really better that a good preamp?

Like I said it's all in his careful wording if you read it again, his does not incriminate his own PS Audio DirectStream Dac as having the problem, and I very much doubt he ever will.

He says DAC's, and singles out their power supplies and jitter as the problem, and for all we know he could mean those tiny portable dacs that run on external smp wall wart power supplies.

I still wonder how this one Aesthetix preamp could fix those specific areas he's has singled out.

Cheers George

"I still wonder how this one Aesthetix preamp could fix those specific areas he's has singled out."

We can all wonder but this little gem from PM will get a lot of DirectStream owners to start adding the Calypso to their systems or replacing their current preamps with it, instead of retiring the Directstream altogether.
Why not, if it sounds as stunning as PM describes? Again, theory aside, of course.

Cheers! J.

Better yet, DirectStream owners can wait for the upcoming BHK preamp.

http://parttimeaudiophile.com/2015/10/05/rmaf-2015-its-always-sunny-at-ps-audio/

"Upcoming PS Audio BHK preamp??"

Now that explains things.

Cheers George

....which still does not explain how the Aesthetix could fix the DirectStream's 'problems' and,
....that rather than tout another brand, build one of your own.
The synergy is now complete.

Cheers! J.