Amazon.com: GROWORD 2-Pack Ground Loop Isolator, Hum/Buzz/Noise Eliminator for Home Theatre, Speaker or Subwoofer Connected to Cable, Isolation Transformer for Cable TV Applications & Antenna(5-1218MHZ) : Electronics
How to Fix or Eliminate Subwoofer Hum - The Tech Edvocate
Subwoofer has humming sound whenever pluged in and the problem has been oersiestend and i wanted to ask if you think that the ground pin missing could be the problem : r/hometheater
How to Fix or Eliminate Subwoofer Hum
Why does a subwoofer make a humming noise? - All for Turntables