Integrated Amps: Classe vs. Audio Refinement?

I'm in the process of setting up a simple, two channel A/V system. I'll be using a pair of Definitive BP-2004TLs as speakers. Does anyone have first hand experience with both Classe CAP-80 and Audio Refinement Complete integrated amps?

I don't want the sound to be too laid back; I want it to have some life and dynamics. The amp will be used for these speakers only, and future expandability is not a consideration (I normally listen to Apogee Stages with different electronics).

Also, does the Classe "thump" through the speakers? I read another thread that said the Classe CAV "thumps". I wouldn't put up with that.