Addison, TX, United States
About this listing
The Walrus Audio Canvas Expression reimagines what an expression pedal can do, giving you two independently configurable outputs that can operate as expression, switch, or control voltage sources. Instead of carrying multiple controllers for different jobs, Canvas Expression is designed to adapt to your board, synth rig, desktop setup, or MIDI workflow.
Each output can be configured independently, so Jack A and Jack B can control two different devices at the same time. Use it for standard expression sweeps, programmable switch control, or CV output for synths and modular gear.
Beyond analog control, Canvas Expression also functions as a deep MIDI controller, capable of sending up to 16 assignable MIDI messages over USB-C and TRS MIDI. It can handle Control Change, Program Change, high-resolution 14-bit USB MIDI, and MIDI input for remotely enabling or disabling outputs.
Setup is handled through onboard configuration and the Canvas web editor, where you can adjust MIDI assignments, switch behavior, TS resistance values, global settings, and firmware updates. Automatic expression wiring detection, adjustable taper, forward or reverse sweep direction, and programmable switching make it easy to fit into a wide range of rigs.
The treadle feel is adjustable, and the design has no strings, pots, or gears to wear out, get scratchy, or fail mid-set. Canvas Expression is built to be the central control point for a modern pedalboard, synth system, or studio setup.
Highlights
Dual independent outputs for expression, switch, or control voltage
MIDI control over USB-C and 1/8" TRS Type A MIDI
Up to 16 assignable MIDI messages
Automatic expression wiring detection and adjustable response
Adjustable treadle feel with no strings, pots, or gears
Specifications
Controls
Outputs: Jack A and Jack B, Independently Configurable
Output Modes: Expression, Switch, or Control Voltage
Expression Compatibility: TRS, RTS, and TS Resistance Mode
Expression Features: Automatic Wiring Detection, Adjustable Tapers, Forward or Reverse Sweep Direction
Switch Control: Momentary or Latching
Switch Activation: Heel, Middle, or Toe Activation Point
Switch Behavior: Multiple Switching Configurations, Forward or Reverse Triggering
CV Ranges: 0–3.3V or 0–5V
MIDI Messages: Up to 16 Assignable MIDI Messages
MIDI Types: Control Change and Program Change
MIDI Resolution: High-Resolution 14-Bit USB MIDI
Treadle Feel: Adjustable Resistance
Hardware
Output A: Variable Operation TRS Output for Expression, Switch, or Control Voltage
Output B: Variable Operation TRS Output for Expression, Switch, or Control Voltage
TRS Output: Voltage Divider Using 50kΩ Potentiometer
TS Output: Variable Resistor with Selectable 10kΩ, 25kΩ, and 50kΩ Total Resistance
Switch Output: Grounds Tip to Sleeve, Ring to Sleeve, or Tip and Ring to Sleeve
MIDI: 1/8" TRS Type A MIDI In and MIDI Out
USB-C: MIDI In, MIDI Out, and Firmware Updates
Design: No Strings, Pots, or Gears
Electronics
Power Requirement: Isolated 9VDC, Center-Negative
Minimum Current: 300 mA
Firmware Updates: Via USB-C
Miscellaneous
Height: 1.9" / 48 mm
Width: 3.6" / 91 mm
Depth: 8.9" / 225 mm
Weight: 2.2 lb
Web Editor: Canvas Expression Web Editor
Warranty: Limited Lifetime Warranty
Why Buy from Tone Shop Guitars?
At Tone Shop Guitars, we bring in pedals and utility gear that are useful, inspiring, and built to earn a real spot in your rig. Every piece we carry is chosen for sound, build quality, and real-world musical value. When you buy from Tone Shop, you’re getting something we would be excited to plug in ourselves.
Price$299.99
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