The EarthQuaker Devices Aqueduct Eight Modulation Modes is an EarthQuaker Devices chorus pedal, currently around $199. Close alternatives include the Catalinbread Callisto MkII All-Analog Chorus and the Caroline Guitar Company Arigato. It pairs well with the PRS HX 50 Head and the Peavey MAX 150 150W 1x12 Bass Combo.
EarthQuaker Devices Aqueduct Eight Modulation Modes
EarthQuaker Devices · pedal
The EarthQuaker Devices Aqueduct is a pitch vibrato pedal from Akron, Ohio boutique manufacturer EarthQuaker Devices, delivering eight distinct pitch vibrato modes through a pure analog pitch modulation circuit. Unlike amplitude modulation tremolo, the Aqueduct creates pitch vibrato by modulating the actual pitch of the signal. Eight modes include Sine, Square, Triangle, Sample and Hold, Random, Sine Envelope, Square Envelope, and Opto for diverse vibrato waveforms.
- pitch
- vibrato
- pitch vibrato
- modulation
- envelope
- analog
- boutique
- waveform characters
Price updated Aug 27, 2026
Genres the EarthQuaker Devices Aqueduct Eight Modulation Modes is commonly used in
- Ambient
cited
Inferred from shared tonal signals, not a stated genre tag. - Experimental
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 Aqueduct Eight Modulation Modes
PRS HX 50 Head
PRS
23% matchPRS HX 50 Head's bright balances out the warm tone
Peavey MAX 150 150W 1x12 Bass Combo
Peavey
22% matchPeavey MAX 150 150W 1x12 Bass Combo's bright balances out the warm tone
Boss Waza-Air
Boss
tonal matchBoss Waza-Air leans bright right where the warm tone needs it
Egnater VN-412A
Egnater
tonal matchEgnater VN-412A's bright balances out the warm tone
Laney Richter
Laney
tonal matchLaney Richter leans bright right where the warm tone needs it
Soldano 4x12 Straight Classic Cabinet (Purple)
Soldano
tonal matchSoldano 4x12 Straight Classic Cabinet (Purple) leans bright right where the warm tone needs it
Winfield Typhoon Combo
Winfield
tonal matchWinfield Typhoon Combo leans bright right where the warm tone needs it
PRS DG
PRS
tonal matchPRS DG's bright balances out the warm tone
Pedals that stack with the EarthQuaker Devices Aqueduct Eight Modulation Modes
EarthQuaker Devices Chelsea
EarthQuaker Devices
22% matchEarthQuaker Devices Chelsea leans bright right where the warm tone needs it
Catalinbread RAH
Catalinbread
19% matchRun Catalinbread RAH after it and the warm edge settles into something more bright
Catalinbread Csidman Ghost
Catalinbread
10% matchCatalinbread Csidman Ghost's pristine voice goes after EarthQuaker Devices Aqueduct Eight Modulation Modes in the signal chain — it's not there to compete with EarthQuaker Devices Aqueduct Eight Modulation Modes's own modulated character — goes in the amp's FX loop (or last, into a clean amp)
T-Rex Replica Delay
T Rex
10% matchRun T-Rex Replica Delay after EarthQuaker Devices Aqueduct Eight Modulation Modes in the signal chain, clear of EarthQuaker Devices Aqueduct Eight Modulation Modes's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Boss EQ 200 Graphic Equalizer
Boss
tonal matchWhere this leans warm, Boss EQ 200 Graphic Equalizer answers back bright
CALIFORNIA WUB Continuum EQ Galaxy Man Edition
California Wub
tonal matchRun CALIFORNIA WUB Continuum EQ Galaxy Man Edition after it and the warm edge settles into something more bright
Friedman Plexi-Drive Mini Overdrive
Friedman
tonal matchWhere this leans warm, Friedman Plexi-Drive Mini Overdrive answers back bright
Fuzzrocious Baxtabber
Fuzzrocious
tonal matchWhere this leans warm, Fuzzrocious Baxtabber answers back bright
Cheaper alternatives
Boffin FX Vibratron
Boffin Fx
72% similarityShared character: wide_range, pedal, vibrato
Marshall VT-1
Marshall
67% similarityShared character: pedal, vibrato, tremolo
Henretta Engineering H-Bomb Trembrato
Henretta Engineering
65% similarityShared character: pedal, vibrato, tremolo
TC Electronic Shaker Mini Vibrato
TC Electronic
65% similarityShared character: vibrato, modulation
TC Electronic Shaker Vibrato
TC Electronic
96% similaritysimilar tone character
Behringer uv300
Behringer
94% similaritysimilar tone character
Boutique & premium upgrades
Similar charactersee all similar tone character →
Catalinbread Callisto MkII All-Analog Chorus
Catalinbread
74% similarityShared character: wide_range, pedal, vibrato
Caroline Guitar Company Arigato
Caroline Guitar Company
71% similarityShared character: pedal, vibrato, signal_chain
Warm Audio WA-C1 Chorus and Vibrato
Warm Audio
68% similarityShared character: pedal, vibrato, analog
EarthQuaker Devices THE Depths V2
EarthQuaker Devices
65% similarityShared character: vibrato, signal_chain, modulation
Subdecay Siren Pitch Vibrato
Subdecay
97% similaritysimilar tone character
Crazy Tube Circuits Memphis
Crazy Tube Circuits
96% similaritysimilar tone character
Questions people ask
What are good alternatives to the EarthQuaker Devices Aqueduct Eight Modulation Modes?+
The closest matches in character are the Catalinbread Callisto MkII All-Analog Chorus, the Caroline Guitar Company Arigato, the Warm Audio WA-C1 Chorus and Vibrato. Budget picks: Boffin FX Vibratron, Marshall VT-1, Henretta Engineering H-Bomb Trembrato. Boutique upgrades: Origin Effects MAGMA57 Amp Vibrato & Drive, Carl Martin TremO'vibe.
What pairs well with the EarthQuaker Devices Aqueduct Eight Modulation Modes?+
Strong matches from rig and tone-complementarity evidence: PRS HX 50 Head, Peavey MAX 150 150W 1x12 Bass Combo, Boss Waza-Air — PRS HX 50 Head's bright balances out the warm tone.
How much does the EarthQuaker Devices Aqueduct Eight Modulation Modes cost?+
Around $199 (live listing price, updated Aug 27, 2026).