The HYDRA merges high-fidelity Reverb and Tremolo to expand the space and dimension of your guitar, bass, or keyboard signal. Following the completion of the ECCOS, the Keeley team aimed to create the ideal companion pedal with a tone so compelling that it becomes indispensable.

Immerse your sound in Spring, Plate, or Room Reverb, and layer it with tap-tempo enabled Harmonic, Vibrato, or Sine Wave Tremolo at the touch of a button. With the HYDRA's intelligent Alt Controls, altering the sequence of effects or the nuances of the Tremolo or Reverb is effortless. It's even possible to sustain a Reverb Trail indefinitely!

Storing up to three presets is a breeze with the user-friendly save function. Activate Reverb Trails instantly—gone are the days of internal dip switches. Compatible with professional remote switching systems, the Hydra accommodates both TRS Expression Pedal and External Tap-Tempo inputs.

The HYDRA stands as the ultimate solution for any pedalboard, seamlessly integrating into any musician's setup, irrespective of musical style. Unleash unprecedented processing capabilities within this compact, pedalboard-compatible unit. With the Keeley Electronics HYDRA, the possibilities extend as deep as the ocean's depths.