For the past couple of weeks i've been noticing that my Rivera K-Tre 120 has been emitting weird crackling and popping sounds or similar to paper tearing. When it's not doing that there's some fuzziness that sounds like heavy breathing. I've trialed everything in my chain and it's still there, no matter the levels on anything including my guitar. Now i'm assuming it's a tube issue, but can anyone help verify?
Couldn't hurt to retube and see if that helps. If it doesn't, then you don't have to order new tubes when your current ones wear out.