Dan D'Agostino is back with a new line

Well, if these designs are going to end up being Class A, hard to tell, then I can see the being quite a bit more than the Pass X series, but you would think in line with the XA.5 (some the best SS amps I have ever heard) so maybe 15-20K for 100 Class A watts in monoblock. I think Dan D tended to push the wattage enevelope, whereas Nelson Pass seems to be comfortable with world class amps with as little as 15-30watts (and more if you really want it, or need it). I get the sense if the Vaporware were $5000 he would get much less "ink" and ink - so let's see where his new venture takes him, I'm sure he has a following based on him being the designer, and new Krell product just won't be seen as being the same, as Marantz wasn't the same after....

These are almost certainly going to be Class D amps - given the compact size, and that the website boasts of the output transistors running "at a blistering 69MHz".

Class-D amps have the trasistors running at much higher frequency.

You mean much lower frequency. Typically between 0.5 - 1.5 MHz.

Have to apologize for my above post. Turns out that I reached the wrong conclusion - the new D'Agostino amp is indeed a Class A/B design, not a Class D.