Sonus Faber Guarneri and Air Tight amp

I am wandering if anyone has any experience with how the G's sound with either the ATM1 or ATM 2 amps? Is the ATM1 too little power to drive the G's?
Davey, I doubt the ATM1 would work. Too soft, not enough power. ATM2 might work. I have the ATM3 monos, and they work well on my Merlin TSM's
I matched ATM1 w/Chario Academy1 to good effect, but think you not have enough power. The ATM2s might do it. How sensitive are the Guarneris? Cheers,