Keeley Seafoam Plus Chorus/Vibrato vs MXR Flanger
The Keeley Seafoam Plus Chorus/Vibrato and the MXR Flanger are both pedals sharing modulated, low gain, shimmer. The Keeley Seafoam Plus Chorus/Vibrato leans lush and pristine. The MXR Flanger leans full and analog warmth.
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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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Derived from overlapping tonal signals across both listings.- modulated
- low gain
- shimmer
MXR Flanger
MXR · pedal
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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 MXR M117R Flanger is a reissue of the original MXR Flanger from the late 1970s, producing a wide range of modulation effects from subtle chorus-like shimmer to extreme jet-plane sweeps. Its four controls — Speed, Width, Regen, and Manual — allow precise tuning of the flange depth and sweep rate. It is closely associated with the flanged guitar sounds of Eddie Van Halen, particularly on tracks from the late 1970s and early 1980s. The M117R is considered warmer and fuller-sounding than most competing flanger pedals, with a musical, full-spectrum character that reviewers consistently rank above budget alternatives. It suits rock and hard rock guitar rigs.
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Genres this gear is documented as being used in.- Ambient
- Rock
- Metal
- Hard Rock
- Alternative Rock
- lush
- pristine
- smooth
- full
- analog warmth