1 charlie chitlins 1 year ago 1951 5A3 Octal preamp tubes and smooth cone speaker. Sounds OLD...like Charlie Christian or Tiny Grimes. Definitely a different animal from a 5E3 and nowhere near as loud. Rehearsed with it last night and it's very cool. Turn it all the way up and it get's this amazing about-to-explode sound. Maybe it was about to explode.