Bridgeman, I don't know if your room would be too big. You could call Kevin at Upscale Audio and I'm sure he would give you an honest answer. My room is about 13' X 20'. Plenty loud with the M60s. But, I don't really like to listen at super loud levels. I think the M80s are even more sensitive than the M60s, no?

It's just a thought. There are great benefits to solid state amps as well. Sometimes I miss what I perceive as as the more punch my NAD had. But then, in accordance with my preferences, I listen to that tone and I fall in love, all over again.

There is also the hybrid like the Unico from Italy. There's one up for sale at audiogon right now. Word is this is a very dark sounding amp - might be a bit much for a first time tuber. But it has a lot of power. The Primaluna is one of the less tubey sounding tube amps I've heard, imo.