Here's how to change the MX-1 MIDI Channel:
1. While holding down the [GAIN] button, turn on the power.
2. Press the [SHUFFLE] button and turn the [TEMPO] knob.
- [OFF, C1-C16] Specifies the MIDI transmit/receive channel (Default: 15).
- [OMNI] MIDI messages of all channels are received. The transmit channel will be 15.
3. Press the [START/STOP] button to save settings.