The value of the parameter selected as the target changes within the range defined by “Min” and “Max,” as set on the GX-100.

When using an external footswitch, or other controller that acts as an on/off switch, “Min” is selected with Off (CLOSED), and “Max” is selected with On (OPEN).

When using an external expression pedal or other controller that generates a consecutive change in the value, the value of the setting changes accordingly, within the range set by the minimum and maximum values. Also, when the target is of an on/off type, the median value of the received data is used as the dividing line in determining whether to switch it on or off.

When using the footswitch:

When using the expression pedal:

When controlling the On/Off target with the expression pedal:


  • The range that can be selected changes according to the target setting.
  • When the “minimum” is set to a higher value than the “maximum,” the change in the parameter is reversed.
  • The values of settings can change if the target is changed after the “minimum” and “maximum” settings have been made. If you’ve changed the target, be sure to recheck the “minimum” and “maximum” settings.