The SET amp question.

The only thing I would add is that different tubes have different sounds, over and above how they are applied. To me, 300B's give the classic mid range brilliance, but are less good at freqency extremes. The 845, my favourite, is more neutral and more powerful, will tend to give a few more watts. My 845 puts out 22watts and will drive my speakers at 89db sensitivity, with ease. They do still lack the base grip of SS designs, I will happily sacrifice that.

At 110 db/w, you would have the luxury of being able to use just about ANY kind of SET. I would certainly consider 45s and 2a3s, because the higher power of 300bs and 845s and 211s would probably not be needed. It is a matter of taste, but these may be, to you, preferable to the other, more powerful tubes.

Everyone has done a good job explaining the differences. As for a recommendation of brands, Don Garbers "Fi X" is a great amp to try out. I think with your speakers, it will be a great match.

I would also put the late John Hogan SET's on your short list. I've owned two (one was a 2A3 & 45 and the other that I still own is a 300B), both bought without hearing first, and can only be described as AMAZING! I used both with my 99DB and 101DB Klipsch speakers.

As has been said, it's a magical midrange that just has to heard.

As Larryi stated, 845's can give the benefits of SET plus substantial power (in a relative sense). I highly recommend the Art Audio Carissa SET amp at 12 big watts. It convinced me that all this is not hype but an exciting way to go.