Because of the low sensitivity of a sonus faber and the low impedance i would recommend at least a one hundred to one hundred fifty watt tube amp with 4 ohm taps. You could try and find a good 6550 or kt88 amp from audio research, sonic frontiers, or rogue. You should be able to find an awesome used model in the 4k range of that power rating. The only upgrade you will need in the future will be good nos tubes and a good power cord but you can add those later. i am worried that a fifty watt amp will run out of steam even on the blues.
Newbie Can't Decide Which Tube Amp
Just had a Bottlehead tech build me a BeePre preamp and an MM phono. My speakers are Sonus Faber Concertos Homage (rated at 87dB sensitivity) and my budget is $4K- give or take. I am not much of a bass person. Mostly classical, appreciate the Blues, Latin, and occasional classic rock. The tech is adamant that I look for a used EAR 534.
I appreciate your feedback in advance.
I appreciate your feedback in advance.