Blog Forums Consumer Electronics Repairing Thomann Box – bad hum Reply To: RE: Repairing Thomann Box – bad hum

#14654
chedwin
Participant

@filbert Sounds like this could be a shell grounding issue

XLR connectors have a normal ground connection on pin 1 but they also have optional grounding of the outer shell. this due to the variety of signal types xlr (and other d series panel mount connectors) are used for as some use cases and signal types require shell grounding whilst others dont

to help diagnose this better can you tell me what audio source is connected to the other end of the xlr and can you open the XLR connector at each end of the XLR and share photos of how the wiring has been terminated


Josh Evans, Professional Live Sound Engineer, High End Commercial AV Install Technician

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