One expression pedal. Two independent outputs. Nearly endless control.
The Walrus Audio Canvas Expression takes the traditional expression pedal and turns it into a true control hub for modern rigs. With two independently configurable outputs, each capable of functioning as Expression, Switch or Control Voltage (CV), plus deep MIDI control over TRS and USB-C, it can handle everything from pedalboards and amps to synths, modular systems and DAWs.
If you’ve ever wished one expression pedal could control more than one thing, switch functions, manipulate MIDI parameters and still behave exactly the way your rig needs, Canvas Expression is built for you.
Control Two Devices at Once
Jack A and Jack B are completely independent, so a single pedal can control two different devices simultaneously.
- Expression Output
- Switch Output
- Control Voltage (CV) Output
That means you can sweep delay time on one pedal while controlling another parameter elsewhere in the rig, switch amp functions, or send CV to a synth – all from the same treadle.
Universal Expression Compatibility
Canvas Expression is designed to work with a wide range of pedals, amplifiers and processors without the usual compatibility headaches.
- TRS support
- RTS support
- TS resistance mode
- Automatic wiring detection
- Adjustable taper
- Forward or reverse sweep direction
Automatic wiring detection makes setup fast and simple, while the deeper settings let you fine-tune the response exactly to your playing style.
More Than an Expression Pedal
Either output can also be configured as a programmable switch for controlling compatible pedal functions, amp channels, presets and more.
- Momentary or latching operation
- Heel, middle or toe activation
- Multiple switching configurations
- Forward or reverse triggering
This makes Canvas Expression far more flexible than a conventional expression pedal and can reduce the need for multiple dedicated controllers on your board.
Built for Synths and Modular
Canvas Expression can generate control voltage directly from either output, making it ideal for Eurorack, desktop synths and CV-enabled effects.
- 0–5V CV range
- 0–3.3V CV range
Deep MIDI Control
Canvas Expression also functions as a powerful MIDI controller, capable of sending up to 16 independently assignable MIDI messages over both TRS MIDI and USB-C.
- Up to 16 MIDI assignments
- Control Change (CC)
- Program Change (PC)
- Independent TRS MIDI and USB MIDI outputs
- High-resolution 14-bit USB MIDI
- MIDI input for remotely enabling or disabling outputs
Use it to control pedals, processors, plugins, virtual instruments or your DAW with smooth parameter sweeps or instant preset changes.
Powerful Web Editor
Advanced configuration is handled through the Canvas Expression web editor, making setup quick without forcing you through complicated onboard menus.
- MIDI assignments
- Switch behaviour
- TS resistance values
- Global settings
- Firmware updates
Adjustable Feel
The treadle resistance can be adjusted to suit your preference, whether you want a light and fast sweep or a firmer, more controlled feel.
Built to Last
Like the Canvas Volume, Canvas Expression uses a design with no strings, pots or gears to wear out, get scratchy or fail mid-set. It’s built for long-term reliability on stage, in the studio and on the desktop.
Why Buy Canvas Expression?
Because a standard expression pedal only does one job.
Canvas Expression combines expression control, switching, CV and MIDI in one compact pedal, making it one of the most flexible control solutions available for a modern rig.
If you want to control more gear with fewer pedals – and build a cleaner, smarter and more powerful setup – Canvas Expression is the obvious upgrade.
