Ebm, I discovered that one can get away with a smaller output tube amp if one has inefficient speakers. ( which is what it sounds like the Mini 2's are)
and you have a small room. My GH's are also pretty inefficient, BUT my ARC with 60 watts/ch has plenty of drive in my very small room. If your room is also small/smallish, you may be able to get away with less power also.