I have not heard the Classe but IMO the Krell is a bit too bright for your speakers. It definately has relentless power but I found it very bright with my Dyanudio audience 82. The combination was really bad and I do not think that the Dyns are brighter than the B&W...On the other hand, I am not sure but you could probably solve this problem with some good copper cables...I like the Krell but it needs careful matching to sing