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HUM when I switch on components-

Ever since I switched over from my older integrated amp (marantz 2325) to newer, high end separates, I have an annoying audible "hum" coming from my system---of course my first thought is that something is not properly grounded (house electrical system)--, or possibly one of the components is culprit? or? I am sure many of you have been through this in the past--was hoping you might be able to help me to "trouble shoot" and figure out how best to address this problem--house is old--but all electric was redone with modern wiring etc---do not have details on fuse box in basement, etc. thanks---
bluesnbike1954

Showing 1 response by rose75

rose75
30 posts
 
You could have a feedback issue from your main panel. Turn the breaker off that is above and below the one you are using for your system. If this stops the hum then turn one of the breakers back on and check again. If the hum comes back then find what the breaker is supporting and work from there.
I am no pro at this by any means but I have experienced these issues before. I have also run into reverse polarity issues.
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