HELP!! My Zoom B3 has developed a hum
...I know - it hums because it doesn't know the words - lol
The hum is the same frequency as a B note on the 4th fret of the G string. It remains the same (low) volume regardless of how loud my bass/amp is.
I've tried the B3 with 3 different amps - same result
I've tried it with 4 different basses - same result
I've swapped out and tested all the power cords, and patch cords - no problem there
There is no hum when I use it with headphones - only with an amp and speakers
Do you tune a 1/2 step flat?
Try plugging it into a different wall socket? Any other pedals sharing the 9v power supply?
Sounds top me that the L/Stereo magic jack on the B3 is defaulted to a stereo output, try the R output.
Thanks for the suggestions.
I've used different wall outlets in different locations (home, studio, rehearsal space)- same result
No other pedals are used with the B3
And it doesn't matter which out (L or R) I use - no difference
I guess the next step (maybe shoulda been the first step) is to contact Zoom and see if they have any suggestions
I would try to use another power supply if possible, maybe see if a local store can let you try one if you don't have a friend. Odds are the problem is in the unit, but it could be the power supply. Other than that I would jut contact Zoom.
Maybe you have a "groundloop" hum........
I had a groundloop hum that came from my bass amp......I isolated it to the amp itself....but you could hear it elsewhere when I connected the amp to other equipment.
I used an Ebtech anti-hum plug....plug this in the wall (3 prong) and then plug amp (3 prong) into that.
It didn't entirely eliminate it but it certainly reduced it bigtime.
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