Let's Get Technical > Troubleshooting Problems

ADA MP-1 Ground hum with good gain

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bunkyloo:
Hello all MP-1 V1 with both jacks mod  switched removed and jumpers installed and battery mod. just still a crazy ground hum on anything overdrive . Any thoughts would be great. Thanks in advance Steve

MarshallJMP:
If you unplug the guitar do you still have hum?

bunkyloo:
If I unplug the cord from the mp-1 it goes away if turn the guitar volume down it goes away if I leave the cord plugged  in and unplug the guitar there is a noise as well as when I am normally playing I have another mp-1 that does the same thing and another one that doesn't Ihope that helps thanks steve btw completely silent on clean tube and ss.

MarshallJMP:
Well it seems that the noise is coming from your guitar and not the mp-1.

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