Jc - I just saw this thread, I have the Signums and I have been very happy with them, amazing speakers. I auditioned them in a local audio store with SS and tube amps, and felt there was a huge difference, much more involving sound with the tubes.
The amps that I auditioned with were a pair of used Golden Tube Audio SE-40 set up as mono amps, so 80 w per speaker.(I had been auditioning electrostatic speakers for weeks but was so impressed that I bought the signums along with the used GTAs).
I've heard that the Sonus Faber do need a lot of power considering their small size...which maybe makes sense given that they produce a great sound for the size. Let me know if you need info from the manual - I can make a copy for you.
The amps that I auditioned with were a pair of used Golden Tube Audio SE-40 set up as mono amps, so 80 w per speaker.(I had been auditioning electrostatic speakers for weeks but was so impressed that I bought the signums along with the used GTAs).
I've heard that the Sonus Faber do need a lot of power considering their small size...which maybe makes sense given that they produce a great sound for the size. Let me know if you need info from the manual - I can make a copy for you.