Earthquaker Aqueduct
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Earthquaker
https://www.earthquakerdevices.com
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An "old school" vibrato... with a decidedly modern approach
Vibrato is one of the most musical modulation effects: it does not blend dry signal like a chorus, it oscillates the pitch to create a sensation of movement, floating, and sometimes delightful instability. The Aqueduct takes this "vintage" DNA (smooth waves, natural wobble) and pushes it much further thanks to a bank of 8 modes covering both classic textures and more radical pitch effects, close to a synth LFO or a slightly warped record.
Within the Earthquaker Devices range, the Aqueduct positions itself as a creative modulation pedal: designed to inspire, experiment, and quickly find sonic signatures without multiplying menus or sub-functions.
Who it's for, and in which styles the Aqueduct makes a difference
The Aqueduct is aimed at guitarists (and more broadly amplified instrumentalists) who want a vibrato pedal capable of delivering both standard and original sounds. With conservative settings, it provides a subtle vibration perfect for blues, rock, indie, or pop to thicken a clean tone and give the illusion of an old amp. Moving towards higher speeds, more angular waveforms, and envelope modes, it becomes a formidable tool for shoegaze, psychedelic, ambient, and modern textures.
On a pedalboard, it is often placed before distortion for a more "integrated" and organic vibrato, or after for a clearer and sharper effect. In the studio, it excels at doubling a take, animating sustained chords, or creating expressive transitions (momentary) without adjusting settings.
Technical specifications
| Effects | Tremolo | Use | electric guitar |
| Format | Pedal | Color | Blue |
| Type | sector | ||
Questions frequently asked
Earthquaker Aqueduct: vibrato or tremolo?
The pedal modulates the pitch of the signal with vibrato, offering 8 modes: Sine, Triangle, Ramp, Square, Random, Env D, Env R, and Env P.
What power supply is required for the Aqueduct?
A 9 V DC power supply with center negative and a 2.1 mm barrel connector is required. The specified current draw is 68 mA. Battery operation is not indicated.
Do the envelope modes respond to the attack?
The Env D, Env R, and Env P modes are controlled by playing dynamics. Env D varies the depth, Env R affects the speed, and Env P creates a pitch bend dependent on the attack. In Env P mode, the Depth control adjusts the wet/dry mix.
Is it possible to use the effect momentarily?
The Flexi-Switch technology allows momentary activation as long as the footswitch is held down, or latched activation with a short press.
Which settings enable a subtle or more pronounced vibrato?
Rate controls the speed of the LFO and Depth its amplitude. The Sine mode provides a smooth movement, while the Square and Random modes produce more abrupt or unstable pitch shifts.
