I currently have two amps in my rack and one has to go. The 300b slightly nudges out the SIT-4 in sound quality but the absolute silence, flatter frequency response, and simplicity make the SIT-4 a slightly better amp if I had to pick one.

You can find cheaper 300bs but I think the tubes I am offering with it justify my asking price. Both are listed on USAudiomart and you can contact me there or here. Buyer responsible for any payment or shipping fees. I can do PayPal, Zelle, or cash in-person.

https://www.usaudiomart.com/details/650324932-decware-sarah-sewe300b/

https://www.usaudiomart.com/details/650332122-first-watt-sit-4/