Walrus Audio Canvas Expression

Walrus Audio Canvas Expression is a comprehensive control center that lets you manipulate parameters on effects pedals, amplifiers, synthesizers, and software directly with your foot. Its two independent analog outputs can be configured separately for expression, switching, or CV, allowing you to control two completely different devices from a single pedal. Automatic wiring detection provides compatibility with TRS, RTS, and TS configurations.

The Canvas Expression also offers extensive MIDI control via TRS MIDI and USB-C. Up to 16 MIDI messages can be assigned per MIDI output, including Control Change (CC) and Program Change (PC) messages. USB-C also provides high-resolution 14-bit MIDI control for exceptionally smooth parameter changes. Using the Canvas web editor, you can fine-tune MIDI assignments, tapers, sweep direction, CV settings, switching behavior, and more to perfectly match your setup.

For smooth and reliable operation, Walrus Audio uses the same contactless magnetic position sensor found in the Canvas Volume Pedal. This eliminates strings, gears, and potentiometers that can stretch, slip, or wear out over time. Pedal resistance can also be adjusted to suit your preferred feel. With its rugged steel and aluminum construction, the Canvas Expression is built for demanding stage and studio use. It runs on 9V DC center-negative power and requires at least 300 mA.

Walrus Audio Canvas Expression demo video