Hello stfoth,
I believe you’ve gotten some very solid recommendations for "good" quality amps at a "budget" price.
1 I’d trust George’s opinion regarding the Japanese 300b amp. It seems a well thought out design/implementation.
2 Dennis Had amp used by Wolf. Their current models seem to have improved power supplies/transformers and are built by a known talent.
3 Coincident Dynamo MK II, I’m very familiar with this brand and they are very high quality. Many good reviews and owner feedback comments.
As Wolf mentioned and I strongly agree, you must have a compatible speaker that's easy to drive and efficient. Otherwise you won't appreciate what these types of quality low power amps are capable of.
Good luck,
Charles

