Eventide Blackhole review

Eventide’s celebrated reverb algorithm gets a dedicated pedal

Eventide Blackhole
(Image: © Future / Olly Curtis)

Guitar World Verdict

We have long recognised Eventide's Blackhole algorithm as being more than capable of such inter-dimensional ambience and experimental textures, and to have it in an intuitive standalone pedal format is a real gift from the universe.


  • +

    Great range of unusual ambient sounds.

  • +

    Easy hands-on operation.

  • +

    Software editing.

  • +

    Expression pedal control.

  • +

    Latching or momentary switching


  • -

    Price could be lower compared with more versatile H9.

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First appearing in rackmount processors, Eventide’s Blackhole reverb algorithm has been around for some time. While it’s recently been available as a plug-in, it was also found in the Space pedal and is a popular fixture in the newer H9 unit. 

Now, though, we have a dedicated Blackhole pedal – a reverb stompbox that features just the one algorithm but with all of its parameters laid out for knob control on the front panel, instead of having to dive into menus. The Blackhole has various options for mono and stereo operation. The single input works with TRS as well as standard mono jacks, and you can set things for guitar or for line-level signals. 

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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.