For solid state look into the Digital Amplifier Company I have had STM on my horns and if I didn't found the deal on my mono 300b's I would still have it. Very clean, clear, and smooth with 0 digital etch. Contact Tommy he will set you up.
https://www.cherryamp.com/
For tubes look into Audio Note Kits 300b amps. Very well made and very good performers. I have had the Kit 1 and now have the Interstage Mono's SET 8w.
http://ankaudiokits.com/ANK-Audio-Kits-Home-Page.html
https://www.cherryamp.com/
For tubes look into Audio Note Kits 300b amps. Very well made and very good performers. I have had the Kit 1 and now have the Interstage Mono's SET 8w.
http://ankaudiokits.com/ANK-Audio-Kits-Home-Page.html