So my setup is guitar->podxt->macbook. I have never had any issues until today. I was playing fine, when i got a bunch of buzzing. this is usual for me because of my house circuitry so i switched the plug to another outlet. when i turned the podxt back on, my guitar tone had completely gone. it sounded like playing active pickups with a dead battery. no tone, gain, or anything whatsoever. i also had to turn the channel volume and output to zero because any higher resulted in nonstop clipping. i have tried different settings, turned it on and off, checked the battery in my pickups, etc. This also happens when it is not connected to my macbook so the computer isnt an issue.