super59I honestly don't know, but given that it's called the Super 59 and that the 100-watt Marshall Plexi was the Model 1959 Super Lead, I'd guess that it's basically a 45-watt version440hz.it: Magnatone super 59. Push pull 45w amp. EL 34 valves. Normal and vibrato channel. Demo by Fabio Vitiello. Italian dealer 440hz Luciano Strumenti...