I sold mine to a guy and the distortion already died. Didn't find it useful personally. Later the guy that bought it had problems similar to what you describe as I recall. Not sure if he got it looked at or not. Doubt it as Covid was nearing at the time.Yep. Not a buzzing or a crackling. At lower frequencies for now. I’ve read complaints that others have had with the same issue that progressively worsens.
.....if I hadn't recently bought two (that I like really well, btw)....
idea to see how tight they really were....and they just sorta came out with a firm pull 

