After purchasing my Line6 the fuse popped about a week into playing. Not a problem, ordered the same one and replaced it. After starting the amp everything came on like normal. I can use all of the pre-sets, knobs, functions just fine. However, the speakers won't generate noise with a guitar plugged in or if I use an audio input like the MP3 port with my phone. I went ahead and did a factory reset and I still get nothing. Oddly, I can plug my headphones in and play just fine. But that is just going to tide me over until I get this fixed. Has anyone else had this issue? Is there something that may have fried and commonly needs to be replaced. If anyone wants me to test anything and post back and forth with them I can show you what is going on with youtube videos. However, the description does justice what is going on.