I'm kind of enamoured of the USA built Transtubes. I think they have good build quality (not as bulletproof as the old USA stuff, but still good), the very good sounding Transtube circuits, and are inexpensive on the used market. I'm curious if anyone knows which of the high wattage amps, particularly heads, were made in USA and at what point they changed to China? I know with the Rage Transtube amps at the point they went to Chinese production they simplified the circuit and eliminated a lot of op amps. I might plan to pick up a few of the USA heads in case I want to tour someday (yeah, right), and it would make online shopping easier if I knew specific ones to look for. I'm a little surprised these aren't hot with the kids playing technical metal these days, as I would think the bigger heads would be great for that style - for solid state they seem to prefer Randall or Ampeg (for those few that don't have Mesas or 5150s). They have the fast SS response, the solid state bass tightness, and the edgy treble, but with the Transtube circuit they also can be pretty smooth. One HC posting about the Supreme implied that these amps just don't have "balls".