Always consult the official Owners Manuals first
Multiplexer block
Contents
Available on which products
- Axe-Fx III: 2 blocks
- FM3: 2 blocks
- FM9: 2 blocks
- Axe-Fx II: no
- FX8: no
- AX8: no
Channels or X/Y
- Axe-Fx III and FM9: 6 channels
- FM3: 4 channels
About the Multiplexer (MUX)
The Multiplexer block (MUX) is a routing and switching tool. It allows on-the-fly or scene-based switching between either rows on the grid (as long as you have them connected), or physical inputs (Input blocks on the grid aren't required), or USB.
Note that only one input can be active at a time. For multiple inputs, use the Mixer block.
No gap is heard when switching sources, because the MUX crossfades between sources very quickly.
"If you want cross-fades between amps you would use two amps and the new Multiplexer block which cross-fades between input sources. You can set the input source to be any row or physical input." [1]
The MUX can't be bypassed.
How to switch between signals
Use the channels (with or without scenes) to switch between rows.
A modifier can be attached to the Input Select switch, which lets you use a switch or pedal to select the input source.
How to use the MUX to switch a pedal between operating as a Wah and as a Whammy.
