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Keeley Electronics Hydra Stereo Reverb & Tremolo Pedal

Perfect For Adding Space & Dimension To Your Tone



More stock due on Tue 23rd Aug 2022.

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    Product Description

    The Keeley Hydra combines two tone-enriching effects in one simple, pedalboard-friendly package. This feature-packed sonic workstation offers a range of high-fidelity reverb and tremolo algorithms that can add both space and dimension to your guitar, bass or synth sounds.

    Following in the footsteps of their acclaimed Eccos 2-in-1 delay/looper, Keeley's versatile Hydra pedal is the perfect companion for vintage aficionados who adore old-school ambient reverbs mixed together with traditional tremolo tones.

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    2 Effects in 1 Pedal

    Hydra is split into two sides to reflect each of its sound engines, with independent Reverb and Tremolo footswitches making it easy to engage each of these effects or use them simultaneously. To alter the response of this killer tremolo/reverb combination, you can change their order to suit your specific tonal needs.

    In addition, the Keeley Hydra’s 'Alt Controls' let you access in-depth parameters to shape the character of both engines. The pedal also offers an infinite reverb trail that's perfect for creating dreamy soundscapes with, while the tremolo side's footswitch doubles up as a tap-tempo function for syncing-up with a drummer or any musical accompaniment.

    6 Sounds in Total!

    Keeley's Hydra pedal comes equipped with gorgeous Spring, Plate and Room reverb algorithms, plus tap-tempo enabled Harmonic, Vibrato and Sine wave tremolo sounds. All of these effects are accessible at the press of a button, and Hydra even allows you to save and store 3 of your favourite presets for instant recall.

    Additional Features

    With expression pedal control, remote bypass, analog-dry-through, kill-dry and a ridiculously low power-draw - the Keeley Hydra is sure to add immense flexibility and stunning sounds to any rig.

    Key Features

    • Stereo, high-fidelity reverb and tremolo effects pedal
    • 3 memory presets, subdivisions, trails, infinite hold reverb trail
    • 3 reverb (Spring, Plate, Room) and 3 tremolo modes (Sine, Harmonic, Vibrato)
    • Huge array of tone and time-based controls with the 'Alt Hold' feature
    • Bypass and tap tempo onboard or remotely with any style pedal switcher
    • Expression pedal assignment over any parameter and in any direction
    • Pro Rig designed, remote control thru 1/4″ jacks for live use with pedal switcher systems
    • 100% analog dry signal, audiophile designed input to output
    • Stereo 'True-Bypass/Trails', switchable on-the-fly
    • Made in Edmond, USA
    • Powered by a regular 9V DC PSU (centre -, 2,1 mm, low ~115 mA current draw)
    Elliot Stent author picture

    Written by Elliot Stent

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    Customer Reviews


    4 reviews





    Mr Adam Fryer7th Dec 2021

    I've not had chance so far to properly explore all the functions of this (tap tempo, presets, Ctrl input), but man, the sounds I've been able to get are so convincing. It's so easy to dial in such a way that the effects don't get in the way of your core tone, even if running straight into the front of an amp! Coming from a hall of fame mini + mooer trellicopter previously, I can say this was definitely the upgrade I was looking for in quality, plus I get to save a bit more space on my board.

    Value 4Looks 5Durability 4Sound 5

    Trusted Customer29th Jan 2021

    Packed with high quality stereo effects.

    Value 4Looks 5Durability 5Sound 5

    Mr Simon Turner5th Jan 2021

    Unbelievable sounding pedal. The reverbs are luscious and the tremolos are phenomenal. And it gets even better in stereo! especially when you ping-pong the tremolo. The only knock is the grey ALT font can be hard to read in certain lights

    Value 5Looks 4Durability 5Sound 5

    Mr Jeremy Summers8th Dec 2020

    But the real star of this review is the pedal, everyone should get a Hydra from Keeley. Hours and hours spent lost in fantastic noisy. Great product.

    Value 5Looks 4Sound 5

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