Your speakers have 92db sensitivity, 40-50 watts will be more than adequate. When your speakers hit 101db, you are still only using 8 watts!
My room is smaller, my listening position is 10 feet away from my speakers which are rated at 89db sensitivity. I have driven them with a 35 watt Primaluna amp with no problems. At a minimum, try a nice tube preamp/ss amp combo with the focals.
My room is smaller, my listening position is 10 feet away from my speakers which are rated at 89db sensitivity. I have driven them with a 35 watt Primaluna amp with no problems. At a minimum, try a nice tube preamp/ss amp combo with the focals.