The Source Audio Gemini Chorus is a Source Audio chorus pedal, currently around $164.99. Close alternatives include the Maxon ASC-10 and the Roland CE-5 Chorus Ensemble. It pairs well with the PRS MT100 and the Orange Rockerverb 50 MkIII 2-Channel 50W Head.

Source Audio Gemini Chorus

Source Audio · pedal

The Source Audio Gemini Chorus is a dual-engine stereo chorus pedal from Source Audio (Boston, Massachusetts), delivering two simultaneous chorus engines for lush, wide stereo chorus with MIDI control and app programmability. The Gemini Chorus provides dual analog-voiced chorus and ensemble modes for comprehensive stereo chorus that spans clean shimmer to vintage ensemble character.

What stands out

  • “The Gemini Chorus provides dual analog-voiced chorus and ensemble modes for comprehensive stereo chorus that spans clean shimmer to vintage ensemble character”

    — from the listing

  • “wide stereo chorus with midi control and app programmability”

    — from the listing

  • “The Source Audio Gemini Chorus delivers dual-engine stereo chorus at Source Audio quality for clean, indie, and ambient players who want comprehensive chorus with MIDI and app control”

    — from the community notes

  • “Its standout strength is the dual simultaneous chorus engines in stereo with full MIDI and app programmability at Source Audio quality”

    — from the community notes

  • “Strengths: Dual simultaneous chorus engines in stereo with full MIDI and app programmability at Source Audio quality”

    — from the reviews

Trade-offs

  • “In the signal chain modulation sits after drive”

    — from the community notes

  • stereo chorus
  • midi
  • stereo
  • shimmer
  • full
  • vintage
  • clean
  • modulation
$164.99View on Reverb

Price updated Oct 24, 2026

Genres the Source Audio Gemini Chorus is commonly used in

  • Indie
  • Ambient
  • Neo Soul
    citedInferred from shared tonal signals, not a stated genre tag.
  • Post Rock
    citedInferred from shared tonal signals, not a stated genre tag.

Amps that pair well with the Source Audio Gemini Chorus

PRS MT100

PRS

17% match
$1329.26via Reverb

What PRS MT100 brings here leans toward mid-forward — that's worth building a pairing around

Comes later in the signal chain

Orange Rockerverb 50 MkIII 2-Channel 50W Head

Orange

17% match

fills 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 leans toward full, and that's a real, usable character to pair with

Comes later in the signal chain

Synergy SL2 Module

Synergy

tonal match

Comes later in the signal chain

Synergy SL2 Module goes after Source Audio Gemini Chorus in the chain

Mesa/Boogie JP-2C John Petrucci Signature 60/100-Watt

Mesa Boogie

tonal match

Comes later in the signal chain

Put Mesa/Boogie JP-2C John Petrucci Signature 60/100-Watt after Source Audio Gemini Chorus

Egnater Tweaker 88 Head

Egnater

tonal match

Comes later in the signal chain

Put Egnater Tweaker 88 Head after Source Audio Gemini Chorus

Ceriatone 2202H

Ceriatone

tonal match

Comes later in the signal chain

Ceriatone 2202H goes after Source Audio Gemini Chorus in the chain

Carol-Ann OD-2R

Carol Ann

tonal match

Comes later in the signal chain

Put Carol-Ann OD-2R after Source Audio Gemini Chorus

Marshall Studio JCM900 SN20H

Marshall

tonal match

Comes later in the signal chain

Put Marshall Studio JCM900 SN20H after Source Audio Gemini Chorus

Pedals that stack with the Source Audio Gemini Chorus

Electro-Harmonix 1973 Violet Ram's Head Big Muff Pi V2

Electro-Harmonix

16% match
$114.30via Reverb

fills 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)

Electro-Harmonix 1973 Violet Ram's Head Big Muff Pi V2 leans toward fuzzy, and that's a real, usable character to pair with

Comes earlier in the signal chain

Wren and Cuff Box of War OG

Wren And Cuff

16% match
$298.33via Reverb

What Wren and Cuff Box of War OG brings here leans toward full — that's worth building a pairing around

Comes earlier in the signal chain

Fender Hammertone Reverb

Fender

7% match
$85.01via Reverb

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.

Keep Source Audio Gemini Chorus's shimmer voice out front: Fender Hammertone Reverb goes after Source Audio Gemini Chorus 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)

Comes later in the signal chain

JHS 3 Series Oil Can Delay

JHS Pedals

7% match
$99via Reverb

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.

Keep Source Audio Gemini Chorus's shimmer voice out front: JHS 3 Series Oil Can Delay goes after Source Audio Gemini Chorus in the signal chain so its modulated voice doesn't muddy it — 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 match
$204.36via Reverb

Comes earlier in the signal chain

Dr. Scientist Frazz Dazzler V2 goes in front of Source Audio Gemini Chorus in the chain

Warm Audio Jet Phaser

Warm Audio

tonal match
$109.01via Reverb

Warm Audio Jet Phaser belongs after Source Audio Gemini Chorus, since modulation reads clearest once the core tone is set

Donner Big Mouth Distortion

Donner

tonal match
$29.95via Reverb

Comes earlier in the signal chain

Donner Big Mouth Distortion goes in front of Source Audio Gemini Chorus in the chain

Demon FX Gladiator Double Preamp Just

Demon Fx

tonal match
$64.88via Reverb

Comes later in the signal chain

Demon FX Gladiator Double Preamp Just goes after Source Audio Gemini Chorus in the chain

Cheaper alternatives

Behringer UC200 Stereo Chorus

Behringer

63% similarity
$28.90via Reverb

Shared character: stereo, modulation, full

TC Electronic Corona Mini Chorus Tone-print

TC Electronic

59% similarity
$84.31via Reverb

Shared character: modulation, overdrive

DigiTech Multi Chorus

Digitech

57% similarity
$85.36via Reverb

Shared character: stereo, clean, overdrive

DigiTech CF-7 Chorus Factory

Digitech

57% similarity
$134.42via Reverb

Shared character: stereo, modulation, overdrive

TC Electronic Corona Chorus

TC Electronic

57% similarity
$46via Reverb

Shared character: stereo, ambient, modulation

Electro-Harmonix Lester K Stereo Rotary Speaker

Electro-Harmonix

53% similarity
$130.60via Reverb

Shared character: stereo, ambient, overdrive

Boutique & premium upgrades

Maxon CS-550 Stereo Chorus

Maxon

65% similarity
$229via Reverb

Shared character: stereo, modulation

Eventide TriceraChorus Tri-Stereo Chorus

Eventide

62% similarity
$273.42via Reverb

Shared character: stereo, ambient, modulation

Walrus Audio Julianna Deluxe Chorus/Vibrato

Walrus Audio

57% similarity
$244.68via Reverb

Shared character: stereo

Universal Audio Galaxy '74

Universal Audio

56% similarity
$279.89via Reverb

Shared character: stereo, ambient, modulation

Maxon CS9 PRO Stereo Chorus

Maxon

54% similarity
$223.29via Reverb

Shared character: stereo, modulation

Tech 21 Geddy Lee Amalgamation Signature Chorus

Tech 21

94% similarity
$337.74via Reverb

similar tone character

Similar charactersee all similar tone character →

Maxon ASC-10

Maxon

64% similarity

Shared character: stereo, modulation, overdrive

Roland CE-5 Chorus Ensemble

Roland

63% similarity

Shared character: stereo, ambient, modulation

Warm Guitar Pedals WA-C1

Warm Guitar Pedals

57% similarity
$209via Reverb

Shared character: stereo, modulation

EVH MXR 5150 Chorus

Evh

55% similarity
$157.49via Reverb

Shared character: stereo, clean, overdrive

Warm Audio WA-C1 Chorus and Vibrato

Warm Audio

54% similarity
$189via Reverb

Shared character: stereo, modulation, vintage charm

Strymon Eventide TriceraChorus

Strymon

54% similarity

Shared character: stereo, ambient, modulation

See all alternatives to the Source Audio Gemini Chorus (cheaper + boutique) →

Questions people ask

What are good alternatives to the Source Audio Gemini Chorus?+

The closest matches in character are the Maxon ASC-10, the Roland CE-5 Chorus Ensemble, the Warm Guitar Pedals WA-C1. Budget picks: Behringer UC200 Stereo Chorus, TC Electronic Corona Mini Chorus Tone-print, DigiTech Multi Chorus. Boutique upgrades: Maxon CS-550 Stereo Chorus, Eventide TriceraChorus Tri-Stereo Chorus, Walrus Audio Julianna Deluxe Chorus/Vibrato.

What pairs well with the Source Audio Gemini Chorus?+

Strong matches from rig and tone-complementarity evidence: PRS MT100, Orange Rockerverb 50 MkIII 2-Channel 50W Head, Synergy SL2 Module — What PRS MT100 brings here leans toward mid-forward — that's worth building a pairing around.

How much does the Source Audio Gemini Chorus cost?+

Around $164.99 (live listing price, updated Oct 24, 2026).

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