What tube amp to drive Guarneri's?

Yes, the smaller room is a bit of a problem, although, I've successfully used Avantgardes in the same room. The bigger room in my other home sounded great regardless of what was in play. I think a clock radio would have sounded good in that room! I am using a single driver speaker now based on the Phy-Hp driver. It is utterly amazing and the room is not a bit of a problem Oh' I fired the Guarneri down the long wall. They were about 5' from the front wall and I was about 10' from them.

I used to own the Guarneri and drove them at the time with the Welborne Apollo II single ended amps. They produced 18-20 watts. The combination was pretty awesome. I would think a good single ended 845 amp would work. Something like a Komura 845 or Sophia Electric 845, or even De Havilland 845.

Davey,
I had the set up in two different rooms. They actually worked better in the larger room which was 21' x 15.5'. I don't listen at obscene levels, but never clipped the amps. 20 watts of Apollo SET is probably like 80 watts of SS, and I'm sure having output transformers help in driving the speakers. I found the Guarneri did not like my smaller room, so I sold them and bought Avantgardes which actually worked a bit better in the smallish room. They are gone now too.

My room is 19'x11' with 8' ceiling. I think the Guarneri are the rare small speaker that sings in large spaces. They seem to thrive on having open space around them. They won't play deep bass, but they do mate well with REL subwoofers like the STRATA III.