Walrus Audio Canvas Expression

A Canvas Designed as a Modern Control Platform

Canvas Expression is not just "another expression pedal." While a traditional passive pedal is limited to a single role, this Canvas was designed as a true parameter hub: it centralizes control of your effects, preset changes, studio automations, and even your CV systems. The idea is simple: to make functions usually reserved for complex programmable controllers accessible, while keeping an immediate, foot-ready interface.
For those who like to dive deep into settings, the pedal combines an onboard interface (for essential parameters) and an online editor (for advanced configuration, MIDI assignment, and updates). The result: a versatile tool that evolves with your rig, instead of forcing you to rethink it with each new device added.

For Which Musicians and Setups?

Canvas Expression is aimed equally at guitarists, keyboardists, producers, and sound designers. If you play live, it becomes an obvious ally for real-time control of a delay mix, modulation speed, reverb feedback, or triggering a switch at the right moment without letting go of your instrument. In the studio, it makes perfect sense for controlling plugins and virtual instruments in a DAW, creating expressive and reproducible automations.
Style-wise, it feels at home everywhere: rock and metal (instant preset changes, controlled boost), blues and funk (fine and dynamic dosing), ambient and post-rock (gradual swells, long transitions), electro and modular music (CV, expression curves). It's also an excellent choice for musicians wanting to simplify their pedalboard: fewer dedicated controllers, more coherence, and faster setup.

Controls, Modes, and Connectivity: A Pedal That Adapts to You

The core concept is two independently configurable analog outputs on 6.35mm Jack. Each output can operate as Expression, Switch (momentary or toggle), or Control Voltage for synth/modular environments. The pedal features automatic cable detection for easy compatibility, supporting TRS, RTS, and TSD, and lets you finely adjust feel and response: travel, sweep direction, trigger threshold in switch mode, as well as output behavior.
For digital control, Canvas Expression offers two independent MIDI outputs: TRS MIDI (3.5mm Jack) and USB-C. You can send up to 16 assignable MIDI messages per MIDI output, in CC (continuous control) or PC (program change), and benefit from 14-bit high-resolution control via USB-C for finer variations. The dedicated online editor provides access to advanced settings (MIDI assignments, CV parameters, switch behavior, global configuration) as well as software updates.
Finally, the pedal offers adjustable resistance: an essential detail to tailor the feel underfoot, whether you want a very smooth action for slow swells or a firmer tension for precise stage control.

Sound Character

An expression pedal doesn't "sound" like an overdrive or delay, but it directly influences your musicality. Here, the Canvas Expression stands out with a very organic feel and extremely gradual control thanks to its contactless magnetic sensor. The travel is smooth, predictable, and above all stable over time: no crackling, no dead spots from potentiometer wear, and consistent precision from gig to gig.
In practice, this translates to cleaner transitions (for example on a reverb mix), more "controlled" swells in ambient, and sharper changes in switch mode. Whether you use it to sculpt a continuous parameter or trigger an action, the feel is designed to remain reliable and expressive, even in a complex setup.

Technical specifications

Effects	Volume / Expression	Use	electric guitar
Format	Pedal	Color	Grey
Type	sector

High-end programmable expression pedal	Expression, Switch, CV and MIDI	MIDI control via USB-C	14-bit high resolution
Two independent assignable analog outputs	Expression, Switch or Control Voltage (CV)	Online editor	configuration, assignments, advanced settings and software updates
Expression curves and sweep direction	multiple curves, adjustable direction	Position sensor	contactless magnetic
Switch function	momentary or toggle	Mechanism	no cable, gear or potentiometer likely to loosen, slip or wear out
Selectable CV output	0-5V or 0-3.3V	Pedal tension	adjustable
Simultaneous control	analog outputs and MIDI	Construction	steel and aluminum
Analog outputs	2 6.35mm jacks, independently configurable	Design and assembly	in the United States
Wiring	automatic detection, TRS, RTS and TSD compatibility	Dimensions	22.5 x 9.1 x 4.8 cm
TRS MIDI output	3.5mm jack	Weight	1.0 kg
USB MIDI output	USB-C	Required power supply	9V DC, center-negative
Assignable MIDI messages	up to 16 per MIDI output	Minimum power consumption	300 mA
MIDI compatibility	CC and PC