Try a cheater plug and see if the hum goes away!
https://www.amazon.com/GE-Polarized-Grounding-Adapter-14404/dp/B00B7PK1TC/ref=sr_1_8?dchild=1&ke...
https://www.amazon.com/GE-Polarized-Grounding-Adapter-14404/dp/B00B7PK1TC/ref=sr_1_8?dchild=1&ke...
60 Hz Hum from Powered Sub
Try a cheater plug and see if the hum goes away! https://www.amazon.com/GE-Polarized-Grounding-Adapter-14404/dp/B00B7PK1TC/ref=sr_1_8?dchild=1&ke... |