Sonus Faber Guarneri with SET amplifier -possible?Not if you want the best bass possible around 100hz. Because the SF’s have a 4ohm load combined with a -50 degree negative phase angle around that frequency, which the amp could see being as low as 2-3ohms. And with a SET is could sound a bit thin in this area.
http://www.stereophile.com/images/archivesart/807SFGFIG1.jpg
Cheers George