Walrus Audio Xero Polylooper - Black

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 Firmware Updates Via USB-C using the Chrome browser on Mac or Windows Specifications 9v 300mA Minimum Center Negative, 2.1mm center pin, 5.5mm barrel Exact size of the die-cast enclosure is 4.6” x 3.9” x 2.3” including jacks. Input impedance - 1.1M Ohms Output impedance - 1k Ohms SNR engaged = 86dB SNR bypassed = 110dB Noise floor engaged = -93dBu Noise floor bypassed = -116dBu Headroom engaged = 5.2Vpp / +7.5dBu @ 1k Hz < 1% THD+N