There are two groups of input ports for the music signal of the front-stage effector. To change the input port, first press the system key on the panel, and the bottom row of the panel displays 1 or 2, indicating that the current effective signal input port is 1000. Then press the down key, and a horizontal line flashes below the number. At this time, you can change the input port by changing the number. Finally, it's OK to save and exit.

In this connection, the MIX mixing function of the effector is used to adjust the proportion of the effect sound.