Keeley Seafoam+ vs MXR M234 Analog Chorus

The Keeley Seafoam+ and the MXR M234 Analog Chorus are both pedals sharing modulated, lush, shimmer. The MXR M234 Analog Chorus leans warm.

Similarity
citedBlended 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.

48% — somewhat different

Shared tone character
citedDerived from overlapping tonal signals across both listings.
  • modulated
  • lush
  • shimmer
  • low gain
Citation fame
citedCitation/mention fame — how often this gear is cited across artist rigs and gear discussion.
0%
0%
Description

The Keeley Seafoam+ is a chorus and vibrato pedal from Keeley Electronics (Edmond, Oklahoma), delivering vintage analog-style chorus and vibrato with lush, transparent modulation and a Vibrato/Chorus mode switch. The Seafoam+ provides musical chorus from subtle shimmer through deep, lush modulation for clean, ambient, and classic rock guitar at Keeley Oklahoma boutique quality.

The MXR M234 Analog Chorus is a compact, true-analog chorus pedal producing a lush, natural, three-dimensional modulation without the harsher digital edge some chorus circuits can have. Rate and Depth controls shape the speed and intensity of the sweep, from a subtle, gentle shimmer to a deeper, more pronounced warble, while a Tone control lets players brighten or darken the effect to sit better with different amps and guitars. It suits players wanting a straightforward, warm-sounding analog chorus that thickens clean and lightly driven tones without an overly synthetic character.

Genres
citedGenres this gear is documented as being used in.
  • Ambient
  • Electronic
  • Alternative Rock
  • Classic Rock
  • neo soul
  • ambient
  • swing
Tonal lean
—
  • warm

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