I have a Roland Micro-Cube RX bass amp that I keep next to my desk just to practice sometimes, and I'm having a problem with the EFX knob. Normally when the knob is all the way counter-clockwise there is supposed to be no effects on the signal, but when I have it like that I'm getting a ridiculous chorus effect, and I've noticed the other functions of the knob are very off from the labeling on the amp as well. It's very annoying because I can't get a clean signal! Kind of weird practicing jazz standards with some flanger. I don't know if it's a problem with the actual pot or something else. Anyone have any solutions?