crispyaaron Posted August 16, 2014 Share Posted August 16, 2014 So while playing on my Spider IV 150, it will start changing tones quickly like I am turning the knob. Will do this after 30 minutes to an hour of playing. Ani ideas? Quote Link to comment Share on other sites More sharing options...
fflbrgst Posted August 18, 2014 Share Posted August 18, 2014 Could it be that loose knobs are turning from vibration? I have read that some people add a small oring under the knob which gives some resistance to turning them. But I have also heard at least one time of someone having a simialr issue, which because ti was happening after some time of the amp being on, indicated overheating of a component (or possibly abad solder point). Quote Link to comment Share on other sites More sharing options...
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