I have Sonus Faber Amati Traditions. I am using Rogue Audio Apollo Dark mono amps and Rogue Audio RP-9. The cables are Nordost Valhalla 2.
The sound is detailed, open, and most importantly "musical". The separation of the instruments, the soundstage, the timbre of instruments are voices are extremely good. See my detailed review of the RP-9 in another thread. Rogue is not a brand that is often "pushed" by dealers, but to my ears is better than many of the Mac amps with the Sonus speakers. Probably because the Mac is warmer, thicker than the more neutral Rogue's and the Sonus speakers do not need as much "syrup" as the Mac provides. If you can, at least listen to the Rogue.
The sound is detailed, open, and most importantly "musical". The separation of the instruments, the soundstage, the timbre of instruments are voices are extremely good. See my detailed review of the RP-9 in another thread. Rogue is not a brand that is often "pushed" by dealers, but to my ears is better than many of the Mac amps with the Sonus speakers. Probably because the Mac is warmer, thicker than the more neutral Rogue's and the Sonus speakers do not need as much "syrup" as the Mac provides. If you can, at least listen to the Rogue.