Krell is competent, but you'll need to decide if it works well in your system. I've heard the CA400 at length via Apogee Divas and I'd have to say it was one of the worst sounding high end amps I've heard...dull and hazy.
Classe or Krell
Recently upgraded my speakers to B&W N802NC, powering them with a Jeff Rowland Model 2 amp. At low listening levels the Rowland is hard to beat Transparacy, air, 3-d. At higher listening levels when I'm playing classic rock or pop the amp doesn't have the control over the big Krells, Classe. Budget is a concern upgrade amps that I'm considering are FPB200C, FPB300c, Classe CA400,CA300,CA301. What should I do? Rest of system consist of BAT VK30se, Wadia 860x cd, transparent super speaker wires + xlr int, Cobra pc on the Wadia, 3 Richard G line conditioners, Quantun symphony Pro. PLease Help? cab