Best Krell Class A?

I used to be the owner of a couple KMA 160's. I loved the slam and speed of these amps. I want to get back to that same Krell sound, but am confused on what model to pursue. I don't care how much my electric meter spins-just want that slam (obviously I want all the best attributes of a good sounding class A amp too). I have read reviews (what I can find) on the FPB's and the Evolution series, but really haven't read where anyone is willing to take the plunge and compare either to the old "tanks" of yesteryear. Is there a pair of Krell monoblocks that can measure up to these beasts of the past?