“A hugely creative tool with the power to unleash spooky, ethereal sounds, or take you on a full-on psychedelic hippie freakout”: Electro-Harmonix Pico Attack Decay review

The transient shaper you've needed all your life – but just didn't know it yet

Electro-Harmonix Pico Attack Decay
(Image: © Future / Phil Barker)

Guitar World Verdict

On the face of it, the Pico Attack Delay is a pretty unassuming pedal, but delve deeper and it’s got dozens of possibilities – plus it’s small enough to take up very little space. We like it!


  • +

    Capable of dialing in some interesting variations in attack.

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    Compact and affordable.

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    Something different entirely.

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    Slow fade setting is very cool.


  • -

    A little niche for some, but you've got to try it.

You can trust Guitar World Our expert reviewers spend hours testing and comparing guitar products so you can choose the best for you. Find out more about how we test.

There are some effects that fill us with excitement, and others that instantly sound like the pedal equivalent of your sensible keyboard-player mate who doesn’t like fun. 

The Attack Decay’s name might fool you into thinking it lives in that ‘utility’ category, and in all honesty, once we tell you that it is a transient shaper – modifying the envelope of your input signal’s sound wave – that perception probably won’t change. 

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Stuart Williams

Stuart is a freelancer for Guitar World and heads up Total Guitar magazine's gear section. He formerly edited Total Guitar and Rhythm magazines in the UK and has been playing guitar and drums for over two decades (his arms are very tired). When he's not working on the site, he can be found gigging and depping in function bands and the odd original project.