I recently got a used Mini Q-tron. I Pluged it in and the only sounds it made where howling shrill sounds. I tried different voltages, tried two different batteries and tried every setting possible. I tried with my bass and a guitar. In didn’t open it because i still have guarantee left till august. Please help me!
I have the same problem. Does anyone have a good solution?
I opened it up and found a small trimpot. Cant find any manual so i dont know what it does, but im on my way to try it and see what happens.
