The amp is a 1970s, it is just crazy clean, almost unbelieveably. It looked new when I opened it... It was an underground amp from the LA rock scene, built by Bob Rissi. He stopped building in the early 80s and only recently got back into his amps again. It is a very late 70s hard rock vibe. It reminds me of a warmer Laney AOR, a little less gain. It currently has 6550, but I plan to switch to el34 as it was built for either option. 2 6550 and 3 12AX7, master volume model.
I have wanted one for a long time and finally made the move, I love off brand stuff and this has the LA metal scene heritige going on.
I think it could use just a little loosening up, so I will tinker with a cap or two.