USED 1977 Marshall JMP Master Model 50 watt Mk 2 Lead Head - Modified w/ Master Volume Gain Channel and Separate Clean Channel - Tube Guitar Amplifier
Marshall Amps Master Model 50w Mk. 2 Lead
Used / Vintage 1977 JMP 50 watt Head
Modified with 2 Channels (Clean and Gain)
Used! Just in on consignment and absolutely killer sounding. This vintage 1977 JMP 50 watt head is a Master Model (2204?) 50w Mk. 2 Lead head which has been modified to include a separate clean channel. There are separate inputs for Clean and Gain Channels. The Clean Channel includes Volume, Bass and Treble controls. The Gain Channel includes a Gain control, Master Volume, and Treble, Mid, Bass and Presence knobs. If you want to footswitch between channels you need some kind of A/B box.
I was told the modifications were done by Bob Bradshaw - There is no paperwork or other indication inside the amp about who actually did the work but photos are posted of the inside. It sounds and functions great. I don't think it was being used regularly for some time. Initially some of the controls were a little scratchy but working them back and forth quite a bit seemed to clear all of that up.
If you are looking for that killer, hot rod modded-Marshall tone then you have come to the right place. Like all our used/vintage gear this has been tested for functionality and priced to move. Sold as-is. What you see is what you get!