I owned the MC501's with demanding Dyn C4's (similiar to 801's) and they bled their hearts out...no balls to these amps despite the supposed power rating.
Levinson and B&W is a classic match. That would be the better fit. 33's would be even better! You might also consider DMlawitm's suggestion, Classe is also a classic match w/ B&W.
Don't give up on Mac 501's yet, they drive my Thiels to the promise land. The Levinson is very nice also, heard them driving Thiel 3.7's. Can't go wrong with either choice IMO comes down to personal preference.
You must have a verified phone number and physical address in order to post in the Audiogon Forums. Please return to Audiogon.com and complete this step. If you have any questions please contact Support.