The Keeley Seafoam+ is a Keeley chorus pedal. Close alternatives include the Malekko Thicken and the Catalinbread Callisto Mk. II. It pairs well with the Orange Rockerverb 50 MkIII 2-Channel 50W Head and the Synergy SL2 Module.
Keeley Seafoam+
Keeley · pedal
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.
What stands out
“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”
— from the listing
“The Seafoam+ provides musical chorus from subtle shimmer through deep, lush modulation for clean, ambient, and classic rock guitar at Keeley Oklahoma boutique quality”
— from the listing
“Its standout weakness is the Keeley boutique pricing”
— from the community notes
“The Keeley Seafoam+ delivers analog-voiced chorus and vibrato with mode switch at Oklahoma Keeley boutique quality for clean, ambient, and classic rock players who want lush, transparent modulation from a respected boutique manufacturer”
— from the community notes
“Use-case wise it suits clean and ambient players who want analog-voiced chorus and vibrato at Keeley quality”
— from the community notes
Trade-offs
“In the signal chain modulation sits after drive”
— from the community notes
- chorus
- modulation
- analog
- lush
- transparent
- ambient
- vibrato
- musical
Genres the Keeley Seafoam+ is commonly used in
- Ambient
- Electronic
- Alternative Rock
- Classic Rock
- Shoegaze
cited
Inferred from shared tonal signals, not a stated genre tag. - Post Punk
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the Keeley Seafoam+
Orange Rockerverb 50 MkIII 2-Channel 50W Head
Orange
18% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (transparent → mid-forward)
Orange Rockerverb 50 MkIII 2-Channel 50W Head's own full character is the real reason this is worth trying
Comes later in the signal chain
Synergy SL2 Module
Synergy
tonal matchComes later in the signal chain
Put Synergy SL2 Module after Keeley Seafoam+
Mesa/Boogie JP-2C John Petrucci Signature 60/100-Watt
Mesa Boogie
tonal matchComes later in the signal chain
Mesa/Boogie JP-2C John Petrucci Signature 60/100-Watt goes after Keeley Seafoam+ in the chain
Marshall Studio JCM900 SN20H
Marshall
tonal matchComes later in the signal chain
Marshall Studio JCM900 SN20H goes after Keeley Seafoam+ in the chain
Friedman BE-Mini Head
Friedman
tonal matchComes later in the signal chain
Put Friedman BE-Mini Head after Keeley Seafoam+
Hughes & Kettner Warp 7
Hughes & Kettner
tonal matchComes later in the signal chain
Put Hughes & Kettner Warp 7 after Keeley Seafoam+
Ceriatone 2202H
Ceriatone
tonal matchComes later in the signal chain
Put Ceriatone 2202H after Keeley Seafoam+
Egnater Tourmaster Combo 4212
Egnater
tonal matchComes later in the signal chain
Egnater Tourmaster Combo 4212 goes after Keeley Seafoam+ in the chain
Pedals that stack with the Keeley Seafoam+
Fjord Fuzz Berserk
Fjord Fuzz
19% matchWhat Fjord Fuzz Berserk brings here leans toward aggressive — that's worth building a pairing around
Comes earlier in the signal chain
Wren and Cuff Box of War Small Foot Fuzz
Wren And Cuff
19% matchWren and Cuff Box of War Small Foot Fuzz's own fuzzy character is the real reason this is worth trying
Comes earlier in the signal chain
Electro-Harmonix Memory Boy Analog Delay
Electro-Harmonix
6% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Electro-Harmonix Memory Boy Analog Delay's analog warmth voice goes after Keeley Seafoam+ in the signal chain — it's not there to compete with Keeley Seafoam+'s own modulated character — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Malekko Electro-Harmonix Memory Toy Analog Delay
Electro-Harmonix
6% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Keep Malekko Electro-Harmonix Memory Toy Analog Delay after Keeley Seafoam+ in the signal chain, where it won't crowd Keeley Seafoam+ — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Dr. Scientist Frazz Dazzler V2
Dr Scientist
tonal matchComes earlier in the signal chain
Put Dr. Scientist Frazz Dazzler V2 in front of Keeley Seafoam+
Warm Audio Jet Phaser
Warm Audio
tonal matchWarm Audio Jet Phaser goes after Keeley Seafoam+ — modulation reads clearest once the core tone is set
Death By Audio Destruction
Death By Audio
tonal matchComes earlier in the signal chain
Death By Audio Destruction goes in front of Keeley Seafoam+ in the chain
Subdecay F-Bomb
Subdecay
tonal matchComes earlier in the signal chain
Subdecay F-Bomb goes in front of Keeley Seafoam+ in the chain
Alternativessee all similar tone character →
Malekko Thicken
Malekko
73% similarityShared character: vibrato, analog, chorus
Catalinbread Callisto Mk. II
Catalinbread
69% similarityShared character: vibrato, analog, chorus
Providence ADC-3 Anadime Chorus
Providence
68% similarityShared character: analog, chorus, ambient
SolidGoldFX NU-33
Solidgoldfx
67% similarityShared character: vibrato, modulation, vintage charm
Universal Audio Uafx Brigade Chorus
Universal Audio
67% similarityShared character: vibrato, chorus, modulation
Mojo Hand FX Swim Team
Mojo Hand Fx
66% similarityShared character: chorus, ambient, modulation
Mr. Black Analog chorus vibrato deluxe
Mr Black
65% similarityShared character: vibrato, analog, ambient
Analog Man Bi-Chorus
Analog Man
64% similarityShared character: vibrato, analog, modulation
Carl Martin Atlantic Chorus
Carl Martin
63% similarityShared character: vibrato, analog, chorus
JAM Pedals Chill
Jam Pedals
63% similarityShared character: ambient, modulation, subtle
Strymon Ola dBucket Chorus
Strymon
63% similarityShared character: vibrato, analog, chorus
Suhr Alexa Dual Channel Chorus/Vibrato
Suhr
61% similarityShared character: vibrato, chorus, modulation
See all alternatives to the Keeley Seafoam+ (cheaper + boutique) →
Questions people ask
What are good alternatives to the Keeley Seafoam+?+
The closest matches in character are the Malekko Thicken, the Catalinbread Callisto Mk. II, the Providence ADC-3 Anadime Chorus.
What pairs well with the Keeley Seafoam+?+
Strong matches from rig and tone-complementarity evidence: Orange Rockerverb 50 MkIII 2-Channel 50W Head, Synergy SL2 Module, Mesa/Boogie JP-2C John Petrucci Signature 60/100-Watt — Orange Rockerverb 50 MkIII 2-Channel 50W Head's own full character is the real reason this is worth trying.