electric guitar noise reduction

my electric guitar humms when I connect it to more than 30 watt amplifier?

I have a Washburn x11 Guitar …….. I plan to buy a zoom g2.1u pedal. Can this buzzing sound will be reduced by "Zoom Noise Reduction (ZNR) feature of g2.1u?

Is usually buzzing from pickups, or a bad string. Could be dirt in pots [potentiometers] also. Pots and pans can be cleaned, but new is not so expensive. The pedal can reduce noise, but nothing is causing it to be treated anyway. A good technique at a guitar shop can tell you what it is.

Electric Guitar Electronics Shielding

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