Marshall JTM45 PA Mk II 1965

Some serious amp business here! The thing that started it all. JTM45 50 watt plexi head, the PA model. The differences with Lead and PA models are subtle.

PA has no mixer bypass ("treble bleed") resistor on Ch I, whereas lead and bass do. Lead has a bright cap on Vol I, whereas bass and PA do not. Soundwise the differences are minimal. So PA model´s channels are same, but can be jumpered to get different voicings.

This is serviced amp with zero hum and crackle etc. Sounds fantastic when turned all the way up...