Hi guys, I have problem with my spider valve MKII 112, hope you can help me.
My amp was Ok until today. I turned the amp on and it sounded nothing. I've just waited for a couple of minutes for tubes to get warm, but the problem remained. I turned the Chanel and master volume up and then it started to sound very low. This volume problem remained even when I reset the amp to factory settings and try it with another guitar. Anyone had an idea? Is it power? Is it some pot jam? Is it tubes??