Amp for Nautilus 805 - Krell KAV or Classe cap 101


I want to change the amplifier for my Nautilus 805.
I am currently using musical fidelity a3.2.
When playing symphonies, mf seems to lack in power.
I have placed the speakers in the living room, so I would say that it is a medium sized room.

I am thinking of changing to krell kav300i, or classe cap 101.
I think krell would have enough power to drive 805, but a little bit worried that it might sound harsh.
Cap 101 might not have enough power to drive 805.

Thanks for your comments!
duheepark
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
Perhaps this bit of info might help, B&W's are designed and developed using Classe` amplification.
I have not used your model B&W's, but have used the CAP-80 and CAP-100 in the past with Thiel and Magnepan speakers...with great results. I had tried the Krell integrated and found it was hard to listen to for any period of time...not a good sign. I've been lucky enough to have some good to very good audio products, inc. the CJ ART, and now am using the BAT integrated with the super tube option. That said, I have great respect for all of the Classe integrated amps.