We have a nice pair of Sonus Faber Stradivari in our listening room driven by VAC mono blocks, or our Class A mono blocks. While I would say that they are on the warm side of the musical spectrum, vocals like Pink Floyd are stunning. Bass is a little slow with the tube power amps. Haven't played around with to many other amps as we don't really feel the need. Van Morrison, Warren Haynes, Buddy Guy, all sound very enjoyable. The Vivids in the room are smaller in height but offer more resolution, dimension, speed so personal preferences come into play.
Happy Listening.