It's some sort of "mesa" off shoot, I think. I've looked at some images ,online, of early mesa boogie amps with the amp out of the cabinet. Looks very similar to this.
I picked it up off CL for $250. I wanted to have a small combo amp for the purpose of not having to move my whole rig when I'm only going to a small jam that isn't too important.
It's not real heavy like a twin but it isn't light either, LOL! Feels like about 50 lbs.
I put new tubes in it, biased the power ones and it sounds great except for the speaker. The speaker is an old Eminence designed for Fender. Doesn't sound too bad, but it will be replaced with a D120 at some point.
First show: 1973
Last show: 1994