It's like a closed back 4x10" with a 50 watt tube head stacked on top of it. Except it's one piece unless you take a Sawzall to it. Which seems to be pretty common. I have a few Bassman 10 cabinets down the basement someone hacked already. Hacking one of these is a quick way to bring the price within reach. It's a big long chassis compared to a normal Bassman. I've seen a lot of 'em rode hard and put up wet. Lot of 'em get bent especially around the inputs. I've got a Ten chassis that's twisted, the spot welds are torn out by the PT, it has the dreaded concave front panel with additional damage around the input jacks. You need a welder / autobody technician / amp tech to fix that. Oh, wait. I'm a welder / autobody technician / amp tech. There was a real clean one near Poughkeepsie that went out around $300. There's $300 worth of potential in there. Guys who ask big money for these obviously need the money for drugs. Doubt it. The 32 ohm "bass" speakers are weirdballs even if they're intact. I've seen so many of these with kicked- in cones I'm startin' to suspect they left Fullerton like that.