[jujipanam]

Hi every one, I got a 50hz noise when a plug a piezo mic on the CH4 (boost) of FX field mixer. When I touch the plug enclosure the noise decrease. I read it was a groud trouble, byt  I cant see how to solve that . Any idea ?

Flo

[chrisi]

Hey Flo! Indeed a 50Hz hum often points to some ground issue. Could be that the cable of the microphone itself is broken? Or even the cable you use to send the signal from the FX? Is that possible?