The SL-20 Slicer is a powerful multi-effects unit that processes an instrument's signal into a wide variety of pulsations and grooves. In addition to 50 rhythmic onboard patterns, Harmonic Slice and 3D panning, the SL-20 also features loop playback capabilities for song-writing and experimental playing.

Product Specs

  • SL-20 Slicer
  • Green
  • 2008 - 2019
Made In
  • Taiwan

From the Price Guide

Reviews for the Boss SL-20 Slicer
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  • Slice and Dice

    Verified Purchase

    I love my Slicer. I have already begun using it on new material.....simply awesome.

  • Outside the Guitar

    This is an 'outside the guitar' peddle. IF your doing studio work- this pedal has invaluable worth but on a board every night it's not a mainstay. Having said that I love the mindset of BOSS. This is a magical tool.

  • Wow, such a fun pedal

    Great for ambient, electronic, layered grooves. Tap tempo works well, but I can see syncing a midi clock being helpful if you are adding to tracks, etc. I'm currently just running it mono with a guitar/amp to add varied complex tremolo type patterns sometimes with hints of ring mod and other subtle effects in the loop. Lots of options in this thing, check it out :)

  • Fun and unique

    Verified Purchase

    If you enjoy sound experimentation, this pedal is an absolute gem.

  • One of the most versatile tremolo units around

    Verified Purchase

    The harmonic settings are pretty much exactly what I was looking for. Very ring mod-like tones with highly adjustable attack and pulse width. I havent tried any MIDI with it yet, even though I've had this for several years now. My only gripe is the looper is only 40 secs max; with a 5 min capacity t…