And check for humming technicians, too.
If you’re getting a hum in your sound, replace your cables with shielded cables, or new cables, or at least don’t run them next to or across power cables. Make sure they’re properly grounded.

If you’re getting a hum in your sound, replace your cables with shielded cables, or new cables, or at least don’t run them next to or across power cables. Make sure they’re properly grounded.