Ultralinear vs. Triode vs. SET


I currently have a Rogue Cronus that I have been quite satisfied with, but I am intrigued with the possibility of a SET amplifier. From both a technical and sonic perspective, what are the differences between a tube amp with switchable ultralinear and triode mode vs. a true SET amplifier?
droz
Some really excellent posts above!

I'd be interested in further comments that anyone might have on how much of the 45/2A3/300B "magic" tends to be sacrificed in well executed designs that use higher powered transmitting triodes, such as the 211 and 845. For push-pull as well as SET configurations, if possible.

Regards,
-- Al
Al:

In well executed designs, I think the SET "magic" is there for the high powered SET's as well. My favorite high powered SET tube is the GM70. I like my GM70 amp just as much as my 45,2A3 and 300B amps. In fact, If I could have only one SET amp I would probably take the GM70 due to its amazing presence and versatility over multiple music genres.
Sparky,
I agree, the SET experience most certainly is`nt HiFi it`s music presented naturally.
" is`nt HiFi it`s music presented naturally."

LOL - Oh no! You're not really going to bring that one back, are you Charles?