The Warm Audio WA-C1 Chorus and Vibrato is a Warm Audio chorus pedal, currently around $189. Close alternatives include the Catalinbread Callisto Mk. II and the Strymon Ola dBucket Chorus. It pairs well with the Revv Generator G20 20-Watt 2-Channel Tube Head and the Friedman Plex Head with 2x12 Cabinet.
Warm Audio WA-C1 Chorus and Vibrato
Warm Audio · pedal
The Warm Audio WA-C1 is a stereo chorus and vibrato pedal modeled on the vintage Boss CE-1, built with vintage-spec bucket-brigade components for an authentic analog modulation character. Unlike the original CE-1's single intensity control, it adds independent depth and rate controls for more precise shaping of the chorus and vibrato modes, plus an always-on analog preamp stage. In stereo, the chorus is described as deep and shimmering, ranging from subtle to expansive and complementing clean guitar tones with a thick, midrange-focused character. The vibrato mode evokes a Fender Vibratone rotary speaker at slower to medium speeds, capable of everything from gentle amp-style throb to more dramatic warbling textures. Suited to players chasing vintage analog chorus and vibrato tones for clean and lightly driven guitar parts.
What stands out
“Stereo operation is where the pedal is most praised, with reviewers describing the width and depth of the chorus effect as unusually immersive for a pedal-format unit”
— from the reviews
“In stereo, the chorus is described as deep and shimmering, ranging from subtle to expansive and complementing clean guitar tones with a thick, midrange-focused character”
— from the listing
“the warm audio wa-c1 is a stereo chorus and vibrato pedal modeled on the vintage boss ce-1”
— from the listing
“Suited to players chasing vintage analog chorus and vibrato tones for clean and lightly driven guitar parts”
— from the listing
“the vibrato mode evokes a fender vibratone rotary speaker at slower to medium speeds”
— from the listing
Trade-offs
“Because the pedal's appeal centers on rich analog thickness , players wanting fast, glassy modern chorus tones may prefer a different modulation pedal”
— from the reviews
“organic modulation character that digital chorus pedals struggle to match”
— from the community notes
- stereo
- vibrato
- analog chorus
- rotary
- vintage
- lush
- stereo chorus
Price updated Oct 23, 2026
Genres the Warm Audio WA-C1 Chorus and Vibrato is commonly used in
- Ambient
cited
Inferred from shared tonal signals, not a stated genre tag. - Neo Soul
cited
Inferred from shared tonal signals, not a stated genre tag. - Indie
cited
Inferred from shared tonal signals, not a stated genre tag. - 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. - Electronic
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the Warm Audio WA-C1 Chorus and Vibrato
Revv Generator G20 20-Watt 2-Channel Tube Head
Revv
20% matchRevv Generator G20 20-Watt 2-Channel Tube Head leans toward high gain, and that's a real, usable character to pair with
Comes later in the signal chain
Friedman Plex Head with 2x12 Cabinet
Friedman
17% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor. (high gain → modulated)
Run Warm Audio WA-C1 Chorus and Vibrato after Friedman Plex Head with 2x12 Cabinet in the signal chain, clear of Friedman Plex Head with 2x12 Cabinet's own gain stage
Comes later in the signal chain
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 Warm Audio WA-C1 Chorus and Vibrato in the chain
Marshall Studio JCM900 SN20H
Marshall
tonal matchComes later in the signal chain
Marshall Studio JCM900 SN20H goes after Warm Audio WA-C1 Chorus and Vibrato in the chain
Synergy SL2 Module
Synergy
tonal matchComes later in the signal chain
Put Synergy SL2 Module after Warm Audio WA-C1 Chorus and Vibrato
Friedman BE-Mini Head
Friedman
tonal matchComes later in the signal chain
Put Friedman BE-Mini Head after Warm Audio WA-C1 Chorus and Vibrato
Hughes & Kettner Warp 7
Hughes & Kettner
tonal matchComes later in the signal chain
Put Hughes & Kettner Warp 7 after Warm Audio WA-C1 Chorus and Vibrato
Egnater Tourmaster Combo 4212
Egnater
tonal matchComes later in the signal chain
Egnater Tourmaster Combo 4212 goes after Warm Audio WA-C1 Chorus and Vibrato in the chain
Pedals that stack with the Warm Audio WA-C1 Chorus and Vibrato
Fjord Fuzz Odin
Fjord Fuzz
23% matchWhat Fjord Fuzz Odin brings here leans toward fuzzy — that's worth building a pairing around
Comes earlier in the signal chain
EarthQuaker Devices Dirt Transmitter
EarthQuaker Devices
23% matchEarthQuaker Devices Dirt Transmitter's own fuzzy character is the real reason this is worth trying
Comes earlier in the signal chain
Roland SDE-3000D
Roland
7% matchKeep Warm Audio WA-C1 Chorus and Vibrato's modulated voice out front: Roland SDE-3000D goes after Warm Audio WA-C1 Chorus and Vibrato in the signal chain so its pristine voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Caroline Guitar Company Meteore
Caroline Guitar Company
7% matchRun Caroline Guitar Company Meteore after Warm Audio WA-C1 Chorus and Vibrato in the signal chain, where it won't crowd Warm Audio WA-C1 Chorus and Vibrato — 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 Warm Audio WA-C1 Chorus and Vibrato
Death By Audio Destruction
Death By Audio
tonal matchComes earlier in the signal chain
Death By Audio Destruction goes in front of Warm Audio WA-C1 Chorus and Vibrato in the chain
Warm Audio Jet Phaser
Warm Audio
tonal matchPut Warm Audio Jet Phaser after Warm Audio WA-C1 Chorus and Vibrato: modulation reads clearest once the core tone is set
Subdecay F-Bomb
Subdecay
tonal matchComes earlier in the signal chain
Subdecay F-Bomb goes in front of Warm Audio WA-C1 Chorus and Vibrato in the chain
Cheaper alternatives
DigiTech CF-7 Chorus Factory
Digitech
66% similarityShared character: stereo output, vibrato, stereo
Carl Martin Atlantic Chorus
Carl Martin
63% similarityShared character: vibrato, analog, chorus
Wampler Nirvana Chorus
Wampler
61% similarityShared character: stereo, chorus, rich
Behringer UC200 Stereo Chorus
Behringer
93% similaritysimilar tone character
Boss CE-5 Chorus Ensemble
Boss
93% similaritysimilar tone character
DigiTech Multi Chorus
Digitech
93% similaritysimilar tone character
Boutique & premium upgrades
SolidGoldFX NU-33
Solidgoldfx
67% similarityShared character: vibrato, modulation, vintage charm
Suhr Alexa Dual Channel Chorus/Vibrato
Suhr
66% similarityShared character: stereo output, vibrato, stereo
Boss CE-1 Chorus Ensemble
pedal
66% similarity“is a stereo chorus and vibrato pedal modeled on the vintage Boss CE-1”
Chase Bliss Warped Vinyl
Chase Bliss Audio
62% similarityShared character: vibrato, chorus, modulation
Analog Man Bi-Chorus
Analog Man
62% similarityShared character: vibrato, analog, stereo
Similar charactersee all similar tone character →
Catalinbread Callisto Mk. II
Catalinbread
67% similarityShared character: vibrato, analog, chorus
Strymon Ola dBucket Chorus
Strymon
65% similarityShared character: stereo output, vibrato, analog
JHS Emperor v2
JHS Pedals
65% similarityShared character: vibrato, analog, chorus
Behringer BM-18M Cluster Box
Behringer
64% similarityShared character: vibrato, analog, stereo
Boss -2W Chorus
Boss
64% similarityShared character: stereo output, rich, vibrato
Malekko Thicken
Malekko
63% similarityShared character: vibrato, analog, chorus
See all alternatives to the Warm Audio WA-C1 Chorus and Vibrato (cheaper + boutique) →
Questions people ask
What are good alternatives to the Warm Audio WA-C1 Chorus and Vibrato?+
The closest matches in character are the Catalinbread Callisto Mk. II, the Strymon Ola dBucket Chorus, the JHS Emperor v2. Budget picks: DigiTech CF-7 Chorus Factory, Carl Martin Atlantic Chorus, Wampler Nirvana Chorus. Boutique upgrades: SolidGoldFX NU-33, Suhr Alexa Dual Channel Chorus/Vibrato, Boss CE-1 Chorus Ensemble.
What pairs well with the Warm Audio WA-C1 Chorus and Vibrato?+
Strong matches from rig and tone-complementarity evidence: Revv Generator G20 20-Watt 2-Channel Tube Head, Friedman Plex Head with 2x12 Cabinet, Mesa/Boogie JP-2C John Petrucci Signature 60/100-Watt — Revv Generator G20 20-Watt 2-Channel Tube Head leans toward high gain, and that's a real, usable character to pair with.
How much does the Warm Audio WA-C1 Chorus and Vibrato cost?+
Around $189 (live listing price, updated Oct 23, 2026).