The Looperwerk Expression Preset Schalter is a compact controller made by Looperwerk that lets a player switch between two preset expression values on any pedal with an expression input. Instead of rocking an expression pedal back and forth, you set two stored levels with the knobs and jump between them with a footswitch, which effectively adds two stored expression presets to compatible pedals like delays, reverbs or modulation effects1.
What it does
The Schalter carries two adjustable knobs for setting distinct expression levels and a footswitch to toggle between them. An LED indicator shows which preset is active at a glance, so you always know whether you are on the low or high setting mid-song1.
In practice, that means a player can store, for example, a subtle setting and an extreme setting on a delay, reverb or chorus pedal and change between them by foot, something those pedals cannot do on their own without a moving expression pedal1.
Controls
| Control | Function |
|---|---|
| Knob 1 | Sets the first preset expression level1 |
| Knob 2 | Sets the second preset expression level1 |
| Footswitch | Toggles between the two stored presets1 |
| LED indicator | Shows which preset is active1 |
Power
The unit runs on 9V DC, center negative, and its circuit is analog1.
Sources (1)
- Expression Preset Schalter by Looperwerk, RockBoard (rockboard.de PedalPedia), 2026