The Keeley Seafoam Plus Chorus/Vibrato is a Keeley chorus pedal, currently around $160.65. Close alternatives include the Catalinbread Callisto Mk. II and the Keeley Seafoam+. It pairs well with the Synergy SL2 Module and the Friedman BE-Mini Head.
Keeley Seafoam Plus Chorus/Vibrato
Keeley · pedal
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.
- chorus
- organic
- lush
- vibrato
- ambient
- low noise
- modulation
- analog
Price updated Aug 27, 2026
Genres the Keeley Seafoam Plus Chorus/Vibrato is commonly used in
- Ambient
- Post Punk
cited
Inferred from shared tonal signals, not a stated genre tag. - Shoegaze
cited
Inferred from shared tonal signals, not a stated genre tag. - Post Rock
cited
Inferred from shared tonal signals, not a stated genre tag. - Indie
cited
Inferred from shared tonal signals, not a stated genre tag. - New Wave
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the Keeley Seafoam Plus Chorus/Vibrato
Synergy SL2 Module
Synergy
tonal matchInto a transparent tone, Synergy SL2 Module brings the high gain it's missing
Friedman BE-Mini Head
Friedman
tonal matchThe transparent tone has headroom to spare — Friedman BE-Mini Head gives it high gain to fill it with
Hughes & Kettner Warp 7
Hughes & Kettner
tonal matchInto a transparent tone, Hughes & Kettner Warp 7 brings the high gain it's missing
Ceriatone 2202H
Ceriatone
tonal matchInto a transparent tone, Ceriatone 2202H brings the high gain it's missing
Friedman Jose LTD
Friedman
tonal matchThe transparent tone has headroom to spare — Friedman Jose LTD gives it high gain to fill it with
Hiwatt Hi-Gain 100W Head
Hiwatt
tonal matchInto a transparent tone, Hiwatt Hi-Gain 100W Head brings the high gain it's missing
Hughes & Kettner Coreblade
Hughes & Kettner
tonal matchRun Hughes & Kettner Coreblade into that transparent platform and it finally gets some high gain
Friedman Phil X Signature
Friedman
tonal matchRun Friedman Phil X Signature into that transparent platform and it finally gets some high gain
Pedals that stack with the Keeley Seafoam Plus Chorus/Vibrato
Keeley Zoma
Keeley
24% matchKeep Keeley Zoma's high gain voice out front: Keeley Seafoam Plus Chorus/Vibrato goes after Keeley Zoma in the signal chain so its lush voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)
Fjord Fuzz Berserk
Fjord Fuzz
24% matchRun Fjord Fuzz Berserk into that transparent platform and it finally gets some fuzzy
Suhr Rufus Reloaded
Suhr
24% matchThe transparent tone has headroom to spare — Suhr Rufus Reloaded gives it fuzzy to fill it with
Matthews Effects Architect
Matthews Effects
23% matchArchitect's clean-boost-to-high-gain drive feeds Seafoam's organic, lush chorus and vibrato rather than the chorus stacking onto it.
J. Rockett Tim Pierce Overdrive
J Rockett
21% matchPut Keeley Seafoam Plus Chorus/Vibrato after J. Rockett Tim Pierce Overdrive in the signal chain, clear of J. Rockett Tim Pierce Overdrive's own gain stage
Sonicake Dejent
Sonicake
19% matchKeeley Seafoam Plus Chorus/Vibrato's lush voice goes after Sonicake Dejent in the signal chain — it's not there to compete with Sonicake Dejent's own tight character
Meris Polymoon
Meris
9% matchMeris Polymoon's modulated voice goes after Keeley Seafoam Plus Chorus/Vibrato in the signal chain — it's not there to compete with Keeley Seafoam Plus Chorus/Vibrato's own lush character — goes in the amp's FX loop (or last, into a clean amp)
Strymon BigSky
Strymon
9% matchRun Strymon BigSky after Keeley Seafoam Plus Chorus/Vibrato in the signal chain, clear of Keeley Seafoam Plus Chorus/Vibrato's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Cheaper alternatives
Boss CE-5 Chorus Ensemble
Boss
72% similarityShared character: chorus, noise, digital
Dunlop JHMS3 Hendrix Shrine Series Uni-Vibe
Dunlop
71% similarityShared character: vibrato, chorus, lead
TC Electronic Gravy
TC Electronic
71% similarityShared character: vibrato, chorus, ambient
JHS 3 Series Flanger
JHS Pedals
71% similarityShared character: original_signal, extreme_settings, chorus
Walrus Audio Fundamental Chrous
Walrus Audio
95% similaritysimilar tone character
Electro-Harmonix Eddy Vibrato/Chorus
Electro-Harmonix
95% similaritysimilar tone character
Boutique & premium upgrades
Gamechanger Audio Auto Chorus Pitch
Gamechanger Audio
73% similarityShared character: modulation, chorus, digital
JAM Pedals RetroVibe Mk.4
Jam Pedals
72% similarityShared character: vibrato, chorus, digital
Old Blood Noise Endeavors Reflector Chorus V2
Old Blood Noise Endeavors
95% similaritysimilar tone character
Analog Man Bi-Chorus
Analog Man
95% similaritysimilar tone character
Fairfield Circuitry Shallow Water
Fairfield Circuitry
95% similaritysimilar tone character
Similar charactersee all similar tone character →
Catalinbread Callisto Mk. II
Catalinbread
77% similarityShared character: vibrato, chorus, noise
Keeley Seafoam+
Keeley
75% similarityShared character: vibrato, chorus, ambient
Boss CE-2 Chorus
Boss
73% similarityShared character: low_noise_floor, chorus, subtle
MXR Flanger
MXR
73% similarityShared character: extreme_settings, vibrato, chorus
MXR EVH117 Flanger
MXR
72% similarityShared character: digital, chorus, lead
Strymon Ultraviolet
Strymon
72% similarityShared character: vibrato, chorus, ambient
See all alternatives to the Keeley Seafoam Plus Chorus/Vibrato (cheaper + boutique) →
Questions people ask
What are good alternatives to the Keeley Seafoam Plus Chorus/Vibrato?+
The closest matches in character are the Catalinbread Callisto Mk. II, the Keeley Seafoam+, the Boss CE-2 Chorus. Budget picks: Boss CE-5 Chorus Ensemble, Dunlop JHMS3 Hendrix Shrine Series Uni-Vibe, TC Electronic Gravy. Boutique upgrades: Gamechanger Audio Auto Chorus Pitch, JAM Pedals RetroVibe Mk.4, Old Blood Noise Endeavors Reflector Chorus V2.
What pairs well with the Keeley Seafoam Plus Chorus/Vibrato?+
Strong matches from rig and tone-complementarity evidence: Synergy SL2 Module, Friedman BE-Mini Head, Hughes & Kettner Warp 7 — Into a transparent tone, Synergy SL2 Module brings the high gain it's missing.
How much does the Keeley Seafoam Plus Chorus/Vibrato cost?+
Around $160.65 (live listing price, updated Aug 27, 2026).
Compare
- vs Old Blood Noise Endeavors Reflector Chorus V2
- vs Ibanez CS Mini Compressor/Sustainer
- vs Providence ADC-3 Anadime Chorus