I'd like to try and confirm that it's not me doing something wrong. I have an onkyo receiver with a single cable subwoofer connection. Nothing, I also tried connecting a line out directly into the subwoofer, nothing. i get a brief noise/hum when I turn it on initially. When I turn the volume knob some quiet static happens, otherwise nothing.
I tried looking inside and nothing seems obviously bad like a blown capacitor. But I'm far from an expert.
Any advice?