My speaker just stopped producing all sound one night. I was using the headphones, pulled out the headphone jack and it just stopped working. No sound at all except for maybe when I turn on the amp. Ever since it arrived at my door, it sounds like something is loose inside the amp when I move it around and it sounds like it's getting a big out of control now since I've been gigging. Does anyone know how I can fix this? I made a video if you have no idea what I'm talking about and I'd be happy to post it.