Integrated amplifier below 1.5K for Sonus Faber?

I really think that pairing Sonus Faber Concertino with tubes will produce very unimpressive sound. Treble will be non-existing, imaging will suffer greatly,imho.
I used to own Concertinos and Concertinos Home speakers. I have to say that if you like Sonus Faber furniture you must pair it with pretty bright ad fairly powerful transistor amp. Otherwise Sonus Faber's natural lack of good treble and poor, bass-colored sound will be overwhelming.
In terms of realism or imaging no matter what you pair them with they going to sound like a mid range Home-Theater speakers which they are.

I honestly don know how to make Sonus faber concertino sound good. But I would stay away from anything tube based, as I mentioned before. Tubes might be good for very forward and bright/detailed speakers. But for sonus faber you need good gain , some smaller amps would not control them very well. But i gues you are not looking at small amps.
I heard Rega amps and they were fairly bright sounding which might pair well with SF, but I never actually heard Rega-SF combo.
What i am trying to suggest is ask around for SS amp with real forward sound and at least 100W of efficient power output.SF speakers need their butts kicked before they move.
Stay away from amps that emphasise bass (which is hard to do) because SF by design will color everything with bass.