In PX-1, the knob is locked when the model name screen is displayed, so turning it will not change the sound.
To edit parameters, press the right knob to switch to the effect parameter screen.
Example:
In PX-1, the knob is locked when the model name screen is displayed, so turning it will not change the sound.
To edit parameters, press the right knob to switch to the effect parameter screen.
Example: