An alternative to 300Bs is the Audio Mirror 45w SET monos. Uses two 6C33C power tubes in parallel per channel. I love the sound, power tubes are inexpensive and it pushes my Egglestonworks floorstanders well.
Is there a 300B type amp out there with some WATTS behind it?
I recently acquired a Feliks Audio Arioso 300B amp. To put it simply, it is incredible. I understand one way to tackle the issue of using SET amps is with high sensitivity speakers. Is there a 300B or something that gives you that same sound out there with power so you have more speaker options?