Strymon Iridium — MIDI Editor & CC Reference
Control the Strymon Iridium from your browser — MIDI control reference, interactive editor, and AI-generated presets. Free, no install.
Explore the Iridium controls in your browser and connect compatible MIDI hardware to send settings to your pedal. The reference below shows the controls mapped in Nitelite; available functions depend on the pedal and firmware. The default MIDI channel in Nitelite is 1. Browser MIDI control works in Chrome, Edge, Opera, or Brave — no install required.
Knobs
| Control | MIDI CC | Description |
|---|---|---|
| DRIVE | CC 13 | Amp gain — controls analog JFET input stage and preamp gain |
| LEVEL | CC 12 | Output volume (auto-compensated as Drive increases) |
| MIDDLE | CC 15 | Midrange EQ — adjusts tone stack mids (round/punch) or high-end rolloff (chime) |
| TREBLE | CC 16 | High frequency EQ — adjusts tone stack treble |
| BASS | CC 14 | Low frequency EQ — adjusts tone stack bass |
| ROOM | CC 17 | Room reverb level — hybrid IR/algorithmic natural room ambience |
Switches
| Switch | MIDI CC | Positions |
|---|---|---|
| AMP | CC 19 | Round / Chime / Punch |
| CAB | CC 20 | Round A / Round B / Round C / Chime A / Chime B / Chime C / Punch A / Punch B / Punch C |
| ROOM SIZE | CC 18 | Small / Medium / Large |
Footswitches
- FAV — CC 27
- ON — CC 102
Special MIDI Functions
- Expression — CC 100
- Volume Pedal Pre/Post — CC 9. Sets whether the volume pedal acts before (pre) or after (post) the amp processing. Pre attenuates the input drive; Post attenuates the final output.
- Amp Disable — CC 21. Bypasses the amp simulation entirely, passing signal through the cab IR only. Useful for using Iridium solely as a cabinet/IR loader with an external preamp.
- MIDI Expression On/Off — CC 60. Controls whether Iridium responds to incoming MIDI Expression messages (CC 100). Disable this when sharing a MIDI channel with other pedals to prevent unintended expression control.
- Bank Select — CC 0. Selects the active MIDI preset bank. Bank 0 = presets 0-127, Bank 1 = 128-255, Bank 2 = 256-299. Send before a Program Change to access the target bank.
- Volume Pedal — CC 7. Controls the volume pedal level (pre or post, depending on the EXP Jack Mode setting). At 0 the signal is fully attenuated; at 127 it is at full volume.
Hardware Presets
Iridium has 300 hardware preset slots, recalled using MIDI Program Change. Saving requires an action on the pedal; follow the hardware preset manager instructions.