I bought a '72 or '73 Marshall 'Super Lead 100 Watts'. It's pre master volume model (actually, there's one in the back, but it's that 'post inverter' kind that's non invasive and reversible), and it has a polarity switch, point to point wiring, and the serial #'s like S/A1932 or something. I was gonna buy a jcm 800 2203 with 6550s for $500, but I as soon as I played through this guy (at 2x the price), I knew I wouldn't be happy with anything else. So the store knocked off 20%, and now it sits atop my silverface twin. My Les Paul and Strat sound awesome, even in my studio apartment. I can't wait to afford a cabinet!