Boss GX-100 Guitar Effects Processor review

Boss is back with its leanest, meanest multi-effects floorboard yet – now with touchscreen control

Boss GX-100 Guitar Effects Processor
(Image: © Olly Curtis/Future)

Guitar World Verdict

A smart new touchscreen interface and some awe-inspiring amp and effects models make the GX-100 Boss's best multi-effects floorboard to date.


  • +

    Touchscreen interface is a big step up.

  • +

    Excellent, responsive amp models.

  • +

    Superlative effects.


  • -

    Interface still takes a bit of getting used to.

  • -

    Not as many amp models as rival processors.

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Boss is the king of stompboxes, but when it comes to multi-effects, there has been room for improvement. While the sounds are exemplary, the effects giant’s GT interface can feel a little complex and difficult to work with compared with its contemporary competitors. Can the company’s first touchscreen-enabled floor processor change that?

The short answer is yes: setting up patches on the GX-100 feels noticeably more streamlined than previous Boss offerings. When editing parameters, you can either tap and use the quick-adjust pots along the bottom, or move to knob mode, where all parameters are shown on screen – besides dialling in sounds, it’s seriously handy for setting up the pedal’s myriad footswitch assign and MIDI control functions, as well.

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Alex Lynham

Alex Lynham is a gear obsessive who's been collecting and building modern and vintage equipment since he got his first Saturday job. Besides reviewing countless pedals for Total Guitar, he's written guides on how to build your first pedal, how to build a tube amp from a kit, and briefly went viral when he released a glitch delay pedal, the Atom Smasher.