Wavac and Art Audio offer some excellent single ended amplifiers as does Wyetech. Don't give up on SET because of the Sophia and the 845. Top notch NOS 845 tubes are extremely expensive; something like over 500/ea and maybe more. Most 845 amps come with Chinese output tubes. Good 300b tubes are cheap by comparison.
Try a quality 211 tube amplifier or a very good 300b SET (possibly with an interstage coupled design) and you may just sing a different tune and find that magic you are looking for. With the Lowthers you only need between 6 and 12 watts depending on the efficiency of your speaker configuration.
Try a quality 211 tube amplifier or a very good 300b SET (possibly with an interstage coupled design) and you may just sing a different tune and find that magic you are looking for. With the Lowthers you only need between 6 and 12 watts depending on the efficiency of your speaker configuration.