Walrus Audio, renowned for its innovative and inspiring guitar pedals, has joined forces with acclaimed guitarist Yvette Young to unveil the Qi Etherealizer, a groundbreaking stereo multi-effects pedal. Pronounced “chee ethereal-izer,” the Qi is a collaborative masterpiece over a year in the making, designed to transport musicians to sonic realms of unparalleled beauty and depth.
A Universe of Sound
The Qi Etherealizer is a captivating blend of Chorus, Delay, Granular effects, and Reverb, seamlessly integrated into a single, user-friendly package. This potent combination empowers musicians to craft a vast array of soundscapes, from lush, swirling ambiance to glitchy, experimental textures.
It follows the Canvas Rehearsals, which also launched this week from Walrus Audio ahead of NAMM 2025. However, we feel you could lose yourself in the ethereal with the Walrus Audio Qi Etherealizer.
This stereo multi-effects pedal transcends traditional boundaries and is very impressive.

Key Features
- Stereo Processing: Immerse yourself in a wide, expansive soundscape with true stereo processing throughout.
- Space Knob: Infuse your signal with lush, ambient reverb, adding depth and dimension to your tones.
- Tone Knob: Shape the character of your sound with a synth-style low-pass filter, offering precise tonal control.
- Versatile Routing: Seamlessly switch between Series and Parallel effects routing to tailor your signal flow and create unique sonic combinations.
- Grain Effect: Explore two distinct Grain modes:
- Grain Cloud: Unleash unpredictable, glitchy textures for avant-garde experimentation.
- Phrase Sample: Trigger rhythmically driven grain effects for captivating rhythmic interplay.
- Delay Section:
- Up to two seconds of delay time for spacious echoes.
- Feedback control for shaping the intensity of repeats.
- Three subdivision options for precise rhythmic timing.2
- Chorus Section:
- Tri Chorus for lush, three-part harmonies.
- Stereo Chorus for a wide, expansive stereo image.
- Preset Storage:
- Three onboard presets (red, green, blue) for instant recall of your favorite sounds.
- Live mode (white) for on-the-fly experimentation.
- 127 presets available via MIDI for extensive customization.
- MIDI Control:
- TRS MIDI ⅛” in and thru ports for seamless integration with MIDI controllers.
- Extended Stomp Switch Controls:
- Momentary Grain Freeze for captivating textural effects.
- Reverb Freeze for sustaining ethereal washes of sound.
- Tap Tempo for precise rhythmic control.
- Delay Oscillation for rhythmic modulation of delay repeats.
- Finish Options:
- Available in Terracotta finish with custom Yvette Young artwork
- Classic black/cream finish for a timeless aesthetic.
- Power requirements: 9VDC, 300mA

Designed with Yvette Young
The Qi Etherealizer is a true collaboration between Walrus Audio and the visionary guitarist Yvette Young.
Known for her innovative playing style, intricate guitar work, and unique approach to tone, Yvette has infused her distinctive voice into every aspect of the pedal’s design.

Powerful Processing
The Qi Etherealizer leverages Walrus Audio’s cutting-edge MDSP (Modular Digital Signal Processing) platform, featuring a powerful ARM-based Cortex M7 processor. This advanced technology delivers exceptional audio quality, low noise, and unparalleled processing power, enabling musicians to explore a limitless range of sonic possibilities.

Guitar Bomb Verdict
The Walrus Audio Qi Etherealizer is poised to redefine the boundaries of sonic exploration, offering musicians a genuinely inspiring and transformative creative tool.
Unlock a universe of sound with the Walrus Audio Qi Etherealizer. Featuring Chorus, Delay, Granular effects, and Reverb, this stereo pedal empowers you to craft lush, ambient textures, glitchy soundscapes, and everything in between
MSRP – $449.99/£449
Preorder Now
- Walrus Audio Qi Etherealizer Yvette Young Signature Ambient Pedal in Terracotta at Andertons
- Walrus Audio Qi Etherealizer Yvette Young Signature Ambient Pedal in Black at Andertons
- Walrus Audio Qi Etherealizer Yvette Young Signature Ambient Pedal in Terracotta at Thomann
- Walrus Audio Qi Etherealizer Yvette Young Signature Ambient Pedal in Black at Thomann

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