No. Only one device can be connected to the CTL 3, 4/EXP 2 jack on the BOSS GX-100 at a time. Connect either a footswitch or an expression pedal.
The following footswitches and expression pedals are supported.
| Footswitch | FS-5U, FS-5L, FS-6, FS-7 |
|---|---|
| Expression pedal | EV-30, FV-500L, FV-500H, Roland EV-5 |
Refer to “Connecting external pedals” in the GX-100 Reference Manual for connection and configuration details.