Walrus Audio Xero Polylooper - Cream

The Xero Polylooper is a true bypass, dual-channel looping powerhouse with independent loop control on each channel, stereo panning, variable playback speed, reverse playback, three looping modes, and intuitive stomp gestures. The Xero is your new partner for perpetually endless ways to create new song ideas, practice your licks, or build endless textures on stage.

Two Loop Channels, Fully Independent Control

Xero gives you two independent loop channels—each with its own:

Loop up to 3 minutes with near infinite stacking of loops 
Unlimited overdubs 
Volume and Pan controls 
Playback speed (0.5x / 1x / 2x) 
Reverse playback option 
You can loop on each channel individually or stack them together to build complex, layered compositions—all in real time.

Play Naturally. Control Effortlessly.

The Xero's dual stomp switches keep loop control fast and intuitive:

Tap the left stomp switch to record and playback loops 
Hold the left stomp to undo
Tap the right stomp switch to stop loop playback 
Hold the right stomp for speed FX 
Double-press both switches to toggle channel control 
Double-hold to trigger full stop or full erase 
With built-in gestures, you stay in control without menu-diving or complex tap dances. Need even more control? Plug in an external dual-stomp switch to simultaneously take full command of both channels—perfect for live performers and loop-centric setups.

Looping Modes Built for Any Workflow 

Switch between three flexible loop sync modes:

Sync Mode – Keeps all loops time-aligned to the first recorded loop 
Unsynced Mode – Let each channel record loops of completely independent lengths
Poly Mode – Create polyrhythms using shared time divisions (3:4, 5:7, etc.) for interlocking textures (Supports MIDI clock for precision syncing) 
Visual Feedback That Keeps You Locked In

Each channel has its own multicolor LED system showing:

Red, Green, and White for recording and playback controls 
Cyan, Pink, Yellow, and Blue LEDs for different speed effects 
Channel Control Status via dedicated red LEDs 
Instantly know what's happening—no guesswork needed, even mid-performance.

Speed FX & Direction Controls

Want to flip your loop upside down or twist it in time? Activate Speed FX to unlock:

Half / Normal / Double speed 
Reverse playback - Each channel’s playback behavior can be manipulated independently, letting you remix on the fly. 
FX activation syncs to loop start in Sync and Poly modes, ensuring accurate timing 
Bypass That Listens

The Xero features true relay bypass—when no loops are active, the pedal automatically disengages, keeping your tone completely untouched.

Stereo. MIDI. USB. Ready to Integrate.

1/8” MIDI IN/THRU (Type A) for clock sync and remote control 
USB-C for easy firmware updates via walrusaudio.io 
Stereo in/out with full panning control on each channel 
Compatible with Chrome on Mac or Windows for web-based updates 
Breakdown of Control Layout
Channel 1

Pan 1: Stereo balance for loop playback 
Vol 1: Channel output volume with +3dB of headroom 
Speed: 0.5x / 1x / 2x playback speed (when Speed FX is active) 
Direction: Forward or reverse loop playback 
Channel 2

Pan 2: Independent stereo placement 
Vol 2: Channel 2 volume with +3dB boost 
Speed: 0.5x / 1x / 2x playback 
Direction: Forward or reverse loop playback 
External Dual Stomp Compatibility

• Breakout and expand stomp controls and add quicker access to secondary features with a TRS dual foot switch

MIDI Integration

Accepts 1/8” TRS MIDI IN (Type A) 
Sends MIDI THRU to downstream devices 
Supports full MIDI CC control for looping, playback, speed FX, and more 

This pedal ships fast and free 'cause that's how we be!