The Krell didn't run so hot from my experiences. I believe it runs in Class A for only "some" of the wattage output, like maybe 20%. At idle, I don't think you'll have a problem. could be wrong, as it's been a while.
Classe's work well with B&W's from my recollection as well. A used 150x5 is probably a good choice, as maybe Aragon 200x5 (forget the wattage, it's sound quality and current dilivery for you!). Actually, on a budget, the old Parasound HCA1205a is a pretty nice amp, if "Class B" rated range. Might mate well.
However, you'll have to try one of em, and see. Good luck
Classe's work well with B&W's from my recollection as well. A used 150x5 is probably a good choice, as maybe Aragon 200x5 (forget the wattage, it's sound quality and current dilivery for you!). Actually, on a budget, the old Parasound HCA1205a is a pretty nice amp, if "Class B" rated range. Might mate well.
However, you'll have to try one of em, and see. Good luck