Can anyone help me out here? I have a sub that's about 5 years old. I bought it used, but optically and technically it's in good shape. However, no matter where I plug it in, it hums. It's not that loud, but noticeable. It even hums when I unplug the input from the receiver. It has a standby mode when plugged in but not turned on, and it even hums then. I've ruled out a ground loop problem, by bypassing the ground part of the plug.
I've also tried plugging it in in various outlets, but with no change. Is it possible that the transformer inside the amp is simply this loud?
The brand is Elac. A german company. This little 8" sub cost about $550 new, and Elac is a respected company here, so I don't think it's just a piece of crap. I wonder what the deal is.
I would appreciate any input.
Thanks!
