rolandgloria Posted March 27, 2015 Share Posted March 27, 2015 When using my Spider IV 150 (at any volume), and I turn the bass knob (either way), the distortion knob (un-named knob all the way to the LHS) begins to cycle through its various distortion selections. As I turn the bass knob the distortion knob mimmics every move, turning on each led and sounding off in its distortion mode. This only started happening about 2 months ago and I've had this amp for 4 years. My amp gets NO road use, it sits 24/7 on an amp stand in an air conditioned environment. Please tell me you can help. Thanks in advance, itsPastor Quote Link to comment Share on other sites More sharing options...
fflbrgst Posted March 30, 2015 Share Posted March 30, 2015 I believe you are talking about the modeling knob, but it sounds like there is a problem in your preamp that could only be solved by a repair center. Quote Link to comment Share on other sites More sharing options...
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