I just picked up a GemTune GS-01 tube integrated that runs EL34’s in SE Ultralinear mode for 8 wpc. It came with an upgraded Alps Blue Velvet volume pot and TungSol 6SL7’s and an SED winged C 5U4 rectifier tube as well. With my speakers, I think I like the original no name rectifier tube. For the money, this sounds pretty darn good, but the upgrades have definitely taken this up a few notches I’m sure....