Walrus Audio Xero Polylooper - Cream
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Xero Polylooper gives you the freedom to build, shape, and control your loops without slowing down your flow. Each channel handles multiple overdubs with independent volume, pan, speed (1/2x, 1x, 2x), and reverse playback.
Three loop modes (Sync, Unsynced, and Polyrhythmic) let you tailor your looping style, whether you're keeping things aligned, going freeform, or creating interlocking polyrhythms.
Two stomp switches make it super easy to record, stop, switch channels, or clear a loop. No clunky menus or deep diving! Want quicker access? Just plug in an external dual footswitch. Xero also includes 1/8" MIDI IN and THRU for syncing with other gear, and USB-C making it future-proof.
Your new partner for perpetually endless ways to create new song ideas, practice your licks, or build endless textures on stage. Available in black or cream.
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 multicolour 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
• Visitwalrusaudio.io to check for the latest firmware releases
Specifications
- 9v 300mA Minimum
- Center Negative, 2.1mm center pin, 5.5mm barrel
- Die-cast enclosure dimensions, including jacks: 4.6" x 3.9" x 2.3"
- 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
Q & A
Reviews
Protect your investment with the Long & McQuade Performance Warranty
A warranty can be a very important factor when making a buying decision. Because repairs can be very expensive in terms of parts and labour costs, manufacturers usually only provide one year limited warranties that generally only cover items that malfunction due to a manufacturer’s defect. With an important purchase such as a musical
instrument or piece of studio gear, however, many people want to have the peace of mind in knowing that their investment will be protected should the product no longer be performing at 100%.
Because of this, Long & McQuade provides our customers with a FREE one-year Performance Warranty on most of our products. The Long & McQuade Performance Warranty supplements the manufacturer’s warranty to ensure that our customers receive complete “no hassle” warranty coverage within their first year.
How does the Long & McQuade Performance Warranty differ from most manufacturers' warranties?
- Performance Guarantee: Normal wear and tear is covered, so your product will be performing as well as the day you purchased it for the entire duration of the coverage. Band and Orchestral Performance Warranty does not include replacing pads or cleaning for woodwind instruments, unless deemed necessary by our repair staff. Ultrasonic cleaning for brass instruments will be provided if deemed necessary by our repair staff, but is not routinely offered under the Performance Warranty.
- Product Replacement: If your product cannot be fixed or costs too much to fix, we will replace it with the equivalent model for no additional charge. If this is not possible, a full refund will be provided.
- No Lemon Policy: Your product will be replaced should the same problem occur multiple times.
- Convenient: Easy drop off and pick up of the product at any Long & McQuade location.
- Guitar Setup: Guitars purchased at Long & McQuade come with 1 free setup, to be redeemed within 1 year for new guitars and 90 days for used guitars.
- Loaners Available: A loaner product may be given while the product is being repaired.
- Power Surge Protection: Your product is covered even if damaged from a power surge.
- Accessory Coverage: Any peripheral devices or accessories that come with your product (i.e. foot pedal, case) are also covered.
- Commercial Use Coverage: Music and recording professionals who purchase gear for “heavy-use” commercial purposes will still be covered.
Long & McQuade reserves the right to restrict the purchase of additional years of Performance Warranty. Used products come with a 3-month Long & McQuade Performance Warranty. Some products (i.e. computers, software, cymbals and other items) are covered only by the manufacturer‘s warranty. Consumables (i.e. strings, reeds, drum sticks, batteries, tubes, cross faders) are excluded as they are designed to be replaced. Cosmetic Damage, Accidental Damage, or problems caused by Humidity or Temperature Issues are not covered. Speakers damaged by overpowering are generally not covered. Our coverage does not provide compensation for loss of use. As of June 2018 the Performance Warranty is no longer transferable. The warranty is only valid in Canada.
Purchasing additional years of coverage
Some manufacturers provide warranties for longer than 1 year; however, these are usually limited warranties that do not provide the same coverage as the Long & McQuade Performance Warranty. Customers interested in more complete and convenient (but not necessarily longer) coverage are still able to purchase additional years of the Performance Warranty.
If you are interested in receiving this coverage for longer than one year, you have the option of purchasing additional years of the Performance Warranty. The pricing is as follows:
- NEW products: Starting at 4% of the current new selling price to double the warranty from 1 year to 2 years. Starting at 4% for each additional year.
- USED products: Starting at 4% of the current new selling price to increase the warranty from 3 months to 1 year. Starting at 4% for each additional year.
- GUITARS: 4% of the current new selling price to double the warranty from 1 year to 2 years. 4% for each additional year. $45 maximum. An additional free setup is not included with additional purchased years of Performance Warranty.
- BAND and ORCHESTRAL instruments: 4% of the current new selling price to double the warranty from 1 year to 2 years. 4% for each additional year.
Great Additions
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| Product | SKU | Qty |
|---|---|---|
| Xero Polylooper - Cream | 827679 |
