Keeley Seafoam Plus Chorus/Vibrato vs Walrus Audio Polychrome Analog Flanger Wal-Poly Flanger
The Keeley Seafoam Plus Chorus/Vibrato and the Walrus Audio Polychrome Analog Flanger Wal-Poly Flanger are both pedals sharing modulated, low gain, smooth. The Keeley Seafoam Plus Chorus/Vibrato leans lush and pristine. The Walrus Audio Polychrome Analog Flanger Wal-Poly Flanger leans ambient.
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Blended from circuit-archetype lineage, dynamic feel, tone-signal overlap and tone-vector distance — the tone vector itself is derived from editorial description text, not a measured acoustic signal, so this reflects how similarly the catalog copy describes the two, not a lab measurement. Shown only within a gear class, and only where there's enough evidence to be meaningful.34% — somewhat different
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Genres both listings are associated with.- Ambient
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Derived from overlapping tonal signals across both listings.- modulated
- low gain
- smooth
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Citation/mention fame — how often this gear is cited across artist rigs and gear discussion.The Keeley Seafoam Chorus is a smooth, ethereal analog-voiced chorus and vibrato that uses an analog-digital design with an FET input to stay true to your core tone. Its True Chorus mode adds second and third voices with slight timing and pitch differences from the original signal, creating a more organic, three-dimensional chorus than typical units. Tone and blend controls are central to its range, letting players match darker humbucker or brighter single-coil guitars and push rate and depth for lush, trippy vibrato textures. The circuit pairs an uncommon IC with an opto-isolator LFO to deliver wide, shimmering modulation while suppressing the hum and noise common to analog choruses. It suits clean ambient, pop, and dreamy lead tones.
The Walrus Audio Polychrome is an all-analog flanger that delivers warm, immersive modulation rather than the harsh, brutish jet-plane sounds of vintage flangers. It adds a warm neon glow that sits comfortably in a mix and shifts in trippy, fun ways, and at slower rates with high feedback it produces a gooey, underwater version of the classic whooshing jet-flange. A D-F-V knob blends from full dry through traditional flange at noon to full pitch vibrato at maximum, and interactive depth and sweep controls allow tight, focused tone shaping with some practice. The all-analog design gives a rich range of warm flange textures. It suits players wanting smooth, musical, warm analog flanging, from subtle movement to gooey underwater sweeps and pitch vibrato, across rock, ambient, and creative styles in a versatile pedal.
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Genres this gear is documented as being used in.- Rock
- lush
- pristine
- shimmer
- ambient