A used MC252 (250w/ch) is the lowest powered amp I would recommend. A used one can be had for $2500. A very nice amp - replaced mine (my first Mc amp) with a McIntosh MC452. My speakers are Sf Cremona Auditor Ms and REL B1 sub-bass system.
Amp for Sonus Faber Cremona M's
I'm looking at upgrading my system and I think my speakers are going to be Cremona M's. My current amp is an Arcam A28 and that is obviously not an ideal paring for the Cremonas. Does anyone have experience with what pairs well with Cremonas? Budget wise I'm looking at something in the $5000-$8000 rage.