I’ve run 845 SET amps (Antique Sound Labs, USA) and been very satisfied with their 27watts per channel. Very quit, lovely midrange, tight powerful bass and extended highs. Great imagine and overall tonal quality. They matched well with my electrostatics. If you are concerned you need more umphf, then you might consider a SET based on the 845 tube.
300B or 2a3 SET Class A for Heretic Model A?
Wondering which one would be the perfect match/magical integrated? 100db is more than enough to drive almost everything.
Between these: Mastersound Compact 300B, Trafomatic Evolution Two, Robson Acoustic 300B Masterpiece, WE91E or even Luxman SQ-N150.
Thanks in advance!