The EarthQuaker Devices ERQ Aqueduct is an EarthQuaker Devices chorus pedal. Close alternatives include the Electro-Harmonix Eddy Vibrato/Chorus and the TC Electronic Tailspin Vibrato. It pairs well with the Bad Cat Cub and the Marshall JVM410H.
EarthQuaker Devices ERQ Aqueduct
EarthQuaker Devices · pedal
The EarthQuaker Devices Aqueduct is a vintage inspired pitch vibrato with eight modulation modes, ranging from subtle, gently wobbling vibrato to deep, synth like sonar pulses and seasick warble. Unlike chorus, it modulates pitch only with no dry blend, giving a pure, expressive vibrato voice, and an expression input plus touch sensitivity in some modes add dynamic control. The eight waveform modes cover sine, triangle, ramp and more extreme shapes for everything from classic vintage vibrato to glitchy, synthy textures. It suits psychedelic, ambient, surf and experimental players who want a versatile, characterful pitch vibrato with both vintage warmth and modern, otherworldly modulation options.
What stands out
“The Aqueduct is a versatile pitch vibrato offering eight modulation modes that span gentle vintage wobble, sine and triangle warble, ramped pulses and extreme synth like sonar textures, all as pure pitch modulation”
— from the reviews
“the earthquaker devices aqueduct is a vintage inspired pitch vibrato with eight modulation modes”
— from the listing
“ranging from subtle”
— from the listing
“The trade offs are that the , the variety of modes takes time to explore, and players seeking a simple chorus or a vibrato with a wet and dry mix may find its pure pitch approach a sp…”
— from the reviews
“, it modulates pitch only with , giving a pure, expressive vibrato voice, and an expression input plus touch sensitivity in some modes add dynamic control”
— from the listing
Trade-offs
“The common caveat is that, as a true pitch vibrato with , the stronger settings can sound dramatically warbly, so players wanting only gentle chorus like shimmer must dial it back”
— from the community notes
“and players seeking a simple chorus or a vibrato with a wet and dry mix may find its pure pitch approach a specific design choice”
— from the reviews
- pitch
- synth
- pitch vibrato
- subtle
- vibrato
- psychedelic
- expressive
- vintage
Genres the EarthQuaker Devices ERQ Aqueduct is commonly used in
- Experimental
- Ambient
- Electronic
cited
Inferred from shared tonal signals, not a stated genre tag. - Bedroom Pop
cited
Inferred from shared tonal signals, not a stated genre tag. - Shoegaze
cited
Inferred from shared tonal signals, not a stated genre tag. - Indie
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the EarthQuaker Devices ERQ Aqueduct
Bad Cat Cub
Bad Cat
22% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)
Bad Cat Cub leans toward harmonically rich, and that's a real, usable character to pair with
Comes later in the signal chain
Marshall JVM410H
Marshall
22% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)
Marshall JVM410H leans toward pristine, and that's a real, usable character to pair with
Comes later in the signal chain
Mesa/Boogie Stiletto Deuce Stage II
Mesa Boogie
tonal matchComes later in the signal chain
Into a dynamic tone, Mesa/Boogie Stiletto Deuce Stage II brings a pull toward compressed that's missing
Friedman Small Box 50W EL34 Amp Head
Friedman
tonal matchComes later in the signal chain
Into a dynamic tone, Friedman Small Box 50W EL34 Amp Head brings a pull toward compressed that's missing
Ceriatone British Style 2525
Ceriatone
tonal matchComes later in the signal chain
Ceriatone British Style 2525 leans this dynamic tone toward compressed, which it doesn't make on its own
Friedman PT-20
Friedman
tonal matchComes later in the signal chain
Into a dynamic tone, Friedman PT-20 brings a pull toward compressed that's missing
Vox AC30S1 OneTwelve 30W 1x12 Combo
Vox
tonal matchComes later in the signal chain
Vox AC30S1 OneTwelve 30W 1x12 Combo leans this dynamic tone toward compressed, which it doesn't make on its own
Friedman Pink Taco Head
Friedman
tonal matchComes later in the signal chain
Into a dynamic tone, Friedman Pink Taco Head brings a pull toward compressed that's missing
Pedals that stack with the EarthQuaker Devices ERQ Aqueduct
Airis Effects SPEC-Defier
Airis Effects
23% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)
Airis Effects SPEC-Defier leans this dynamic tone toward compressed, which it doesn't make on its own
Comes later in the signal chain
Cusack Music Tap-A-Fuzz
Cusack Music
22% matchCusack Music Tap-A-Fuzz leans toward fuzzy, and that's a real, usable character to pair with
Comes earlier in the signal chain
JHS Lucky Cat Delay limited edition
JHS Pedals
11% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Run JHS Lucky Cat Delay limited edition after EarthQuaker Devices ERQ Aqueduct in the signal chain, where it won't crowd EarthQuaker Devices ERQ Aqueduct — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Echoplex EP-3
Echoplex
10% 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 Echoplex EP-3 after EarthQuaker Devices ERQ Aqueduct in the signal chain, where it won't crowd EarthQuaker Devices ERQ Aqueduct — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
MXR Badass Variac
MXR
tonal matchComes earlier in the signal chain
MXR Badass Variac leans this dynamic tone toward compressed, which it doesn't make on its own
DigiTech DOD Compressor 280
Digitech
tonal matchComes earlier in the signal chain
Into a dynamic tone, DigiTech DOD Compressor 280 brings a pull toward compressed that's missing
DigiTech XBS Bass Squeeze
Digitech
tonal matchComes earlier in the signal chain
Into a dynamic tone, DigiTech XBS Bass Squeeze brings a pull toward compressed that's missing
Fairfield Circuitry 20% More
Fairfield Circuitry
tonal matchComes earlier in the signal chain
Into a dynamic tone, Fairfield Circuitry 20% More brings a pull toward compressed that's missing
Alternativessee all similar tone character →
Electro-Harmonix Eddy Vibrato/Chorus
Electro-Harmonix
67% similarityShared character: single rig, vibrato, touch
TC Electronic Tailspin Vibrato
TC Electronic
66% similarityShared character: vibrato, ambient, modulation
Catalinbread Callisto MkII All-Analog Chorus
Catalinbread
65% similarityShared character: wide range, vibrato, chorus
JHS Artificial Blonde
JHS Pedals
60% similarityShared character: vibrato, modulation, subtle
TC Electronic Shaker Mini Vibrato
TC Electronic
59% similarityShared character: vibrato, ambient, subtle
Behringer uv300
Behringer
59% similarityShared character: vibrato, chorus, modulation
Crazy Tube Circuits Memphis
Crazy Tube Circuits
58% similarityShared character: vibrato, chorus, modulation
JHS Emperor
JHS Pedals
58% similarityShared character: vibrato, chorus, mix
Subdecay Siren Pitch Vibrato
Subdecay
56% similarityShared character: vibrato, modulation, vintage charm
TC Electronic Shaker Vibrato
TC Electronic
56% similarityShared character: vibrato, modulation, vintage charm
Walrus Audio Polychrome Analog Flanger Wal-Poly Flanger
Walrus Audio
55% similarityShared character: vibrato, ambient, mix
EarthQuaker Devices Aqueduct Eight Modulation Modes
EarthQuaker Devices
54% similarityShared character: wide range, vibrato
See all alternatives to the EarthQuaker Devices ERQ Aqueduct (cheaper + boutique) →
Questions people ask
What are good alternatives to the EarthQuaker Devices ERQ Aqueduct?+
The closest matches in character are the Electro-Harmonix Eddy Vibrato/Chorus, the TC Electronic Tailspin Vibrato, the Catalinbread Callisto MkII All-Analog Chorus.
What pairs well with the EarthQuaker Devices ERQ Aqueduct?+
Strong matches from rig and tone-complementarity evidence: Bad Cat Cub, Marshall JVM410H, Mesa/Boogie Stiletto Deuce Stage II — Bad Cat Cub leans toward harmonically rich, and that's a real, usable character to pair with.