Arcturus Circuit in a 1980 Marshall JMP 50W

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EddyLenz

EddyLenz

Well-known member
Hi Everyone,

I got this Marshall that has been modded before by a German tech, but it was completely butchered, so I threw out the preamp part of the Marshall PCB and put in my own board with my Arcturus mod, which is a modern high gain circuit. It's also got a tube FX loop and a 2nd foot-switchable master volume. I'm really happy with how the amp turned out. It's got that tight but still chewy bass that I love.
The mid-shift knob in the old master position makes the amp really versatile when it comes to different styles of mids. You can use it together with the middle control to get very different mids, from completely scooped to honkey town :D
It's also got a Depth control with a push-pull attack switch in the back that I didn't change in the demo.

What do you guys think?
 
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