Electro-Harmonix Oceans 12 review

EHX builds on its previous Oceans reverb pedal – this one goes to 12!

Electro-Harmonix Oceans 12
(Image: © Future / Olly Curtis)

Guitar World Verdict

With two independent or combinable reverbs in a pedal that won’t take up much space at all on your ’board, this is a potent ambience tool at a decent price.


  • +

    Compact size.

  • +

    Two reverb engines.

  • +

    Eclectic range of reverb types.

  • +

    Plenty of editable parameters.


  • -

    Hands-on operation can be somewhat fiddly.

  • -

    Limitations in how presets are configured.

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.

When we took a look at the Oceans 11, we were aware that its lack of stereo outputs could be a dealbreaker for some potential users. 

Now, Electro-Harmonix is back with a version that can not only run in stereo if required but actually features two simultaneous, independent stereo reverb engines, A and B, which can run in series or parallel should you wish to use both together.

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Trevor Curwen

Trevor Curwen has played guitar for several decades – he's also mimed it on the UK's Top of the Pops. Much of his working life, though, has been spent behind the mixing desk, during which time he has built up a solid collection of the guitars, amps and pedals needed to cover just about any studio session. He writes pedal reviews for Guitarist and has contributed to Total Guitar, MusicRadar and Future Music among others.