Keeley Hydra


Stereo reverb and tremolo with presets, tap-tempo and more.

Currently out of stock

SKU: 404539

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Combining both high-fidelity Reverb and Tremolo, the Keeley Electronics Hydra Stereo Reverb and Tremolo adds space and dimension to your guitar, bass or synth. After completing the powerful, versatile and stellar Eccos delay and looper, the Keeley Electronics team set out to craft the perfect companion pedal and with this feature-rich little blue box, they have well and truly accomplished exactly that and so much more.

Featuring gorgeous Spring, Plate and Room reverb algorithms, plus a tap-tempo enabled Harmonic, Vibrato and Sine Wave Tremolo – are all accessible at the press of a button – Hydra will add space and dimension to any instrument.

To alter the response of this killer Tremolo/Reverb combination, the effects order can be easily changed. In addition, the Hydra’s Alt Controls let you access in-depth parameters to shape the character of both sound engines. Plus, Hydra even offers an Infinite Reverb Trail.

With expression control, remote bypass, 3 presets, analog-dry-through, kill-dry and a ridiculously low power-draw, this pedal is sure to add immense flexibility and gorgeous sounds to any rig.


Highlights Stereo reverb and tremolo with 3 presets
3 reverbtypes (Spring, Plate, Room)
3 tremolo-modes (Sine, Harmonic, Vibrato)
Tap-tempo, expression-input
Remote-switching from external switching system possible
Analog-dry through
Made in USA
Bypass Selectable true bypass or buffered bypass (trails)
Power consumption 9V DC center negative (power supply sold separately)
115 mA
Dimensions H: 6,1 cm (incl. knobs)
W: 7,3 cm
D: 12,4 cm
Weight 360 g.