Hello all,
I'm new to this forum and I'm seeking a bit of help with a problem I am having with my Harman Kardon subwoofer.
When I turn the sub on, the blue LED light turns on as normal, but then about a second or two after, it begins buzzing as well as making constant booming sounds in a beat fashion. The LED light then begins flashing back and forth between Blue and orange as the booms occur. The buzzing always continues, during and between booms. They are loud, strong booms, and they are the same strength booms whether or not I turn the sub power up or down.
All this occurs once it is turned on, WHETHER the purple connector is plugged in or not. So I am assuming it is not the connection to the receiver or the sub that is the problem. If anyone has any insight on what it could be causing this, or if I can take it in to be fixed without having to buy a new sub, that would be great help.
Sincerely,
Justin