macisaac103 Posted January 27, 2016 Share Posted January 27, 2016 My Flexton iii has a mind of its own that it changes its tone to muddy no mattter how I dial in and tweak. A few seconds after tuning in bass treble and Mid, the amp gradually gets muddy and bassy. If I turn any of those knobs it goes back to normal immediately but gets muddy again within seconds. This is not the same as the volume drop problem. I have firmware 1.1 and have already flashed with the monkey and did a factory reset. Quote Link to comment Share on other sites More sharing options...
tortex73 Posted August 4, 2016 Share Posted August 4, 2016 Mine has the exact same problem. It also seems to be excessively noisy. I'd love to figure out what is causing this and if it can hopefully be easily fixed. Quote Link to comment Share on other sites More sharing options...
angelectrico Posted October 19, 2016 Share Posted October 19, 2016 I have the exact same problem, and I think it is the same as the volume drop problem, because it seems that the problem it´s in the knobs, for some reason they provoke settings changes, I can´t believe after so many years no one has found a fix for this. I´ve been thinking if changing the knob potentiometers with some new-better quality ones could solve this issue? What are your thoughts? I already opened the amp and cleaned the knobs and all the wire connections and the problem remains. Quote Link to comment Share on other sites More sharing options...
joostheemskerk Posted January 19, 2019 Share Posted January 19, 2019 I also have this prob. Connected to my laptop I can see in Tone Editor that some of the knobs unintensionally change their value however I do not touch the fysic knobs. It is possible that my AMP took 48v phantom power from the PA through the XLR connection. I would like to know if this is a plausible cause and if there is a fix possible. Quote Link to comment Share on other sites More sharing options...
TaperChuck Posted July 3, 2020 Share Posted July 3, 2020 Spray all the pots with CAIG DeoxIT or Gold or something similar. Let it sit for a while then start running each knob up and down a few times to get it evenly distributed. Let it sit a while more and all will be good. Any guitar tech can do this for you if you don't want to do it yourself. I had the same problems. The pots are cheap open design and get gunked up. I watched the controls change on my computer screen in real time (when I hadn't touched them) and had a hunch it was dirty pots. After I used the spray I had no more knob issues. Quote Link to comment Share on other sites More sharing options...
psarkissian Posted July 3, 2020 Share Posted July 3, 2020 Don't spray it in. They are not all pots, some are encoders,... a different control element. Drip it in with w cotton swab, spraying can gunk things up. Quote Link to comment Share on other sites More sharing options...
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