Amplifier for Sonus Faber Extrema

Well, I need to chime in here. First of all, nice purchase - i think you will ultimately LOVE these. I own a pair of Guarneri Homage (with a REL sub). Clearly this is different (easirer) to drive than the extrema, but to my ear - having tried various SS amps from Ayre, Rowland and a few others - SF's work best with TUBES!!! I found out that SF uses the amazing Berning ZH270 in their refernece system, so i looked into it, and bought one - AND WILL NEVER go back to SS amps. The sound is simply astounding.

Now, I dont know if a single ZH270 would be up to driving these, but I am sure a bridged mono set would. You should at least consider the amp used by the manufacturer in their reference system....

Thf, as with many tubed amps, especially (this OTL design), the watts/channel rating belies the way it sounds, So, with that caveat, the per channel rating of single stereo ZH270 is 70W/channel - which in my experience on my Guaneri's, that 70W per channel compared very favorably to SS designs with 150-200 per channel range(including my former Ayre V-5x), so a mono block set should be equiv to 140W/channel, and this is capable of driving any load, including the Extremas.....

While not having heard that particular combo, i would bet a lot of coin that it would sound fabulous!