Home › Forums › Products › Stompboxes › lots of noise / hum from my new H9 › Reply To: lots of noise / hum from my new H9
February 17, 2016 at 3:59 pm #142598
I'm not sure a regular electrician is what you need – when we talk about ground loops we are referring to signal ground as much as AC power ground. Typically one fixes these problems by lifting the ground connections on individual cables. But even this can have safety issues, so you probably need an audio technician (maybe ask at your local music shop).
The regular electrician can at least confirm that your AC grounds are good, which is important for safety.