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Boss SL-20 Slicer Guitar Effects Pedal 

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Inject a shot of high-octane fuel into your music with the Boss SL-20 Slicer Guitar Pedal. Instantly transform a guitar, bass, keyboard, or vocal int...Click To Read More About This Product

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OVERVIEW

Instant audio adrenaline.

Inject a shot of high-octane fuel into your music with the Boss SL-20 Slicer Guitar Pedal. Instantly transform a guitar, bass, keyboard, or vocal into a pulsating groove instrument. Choose from 50 onboard Slice patterns or experiment with the SL-20's innovative Harmonic Slicer feature, which generates percussive melodies, Loop Record, and unique 3D Panning.

Groove and Melody Maker

The SL-20 effect pedal transforms your music into percussive "chopped" grooves. Fifty rhythmic patterns are onboard, with adjustable note attack and duration, plus amazing Harmonic Slice effects. Create high-energy patterns onstage in real-time, or use the SL-20 as a songwriting and recording tool. Play the sliced sounds in realtime while capturing them with Loop Record.

Flexible Control

An internal tap-tempo feature is included, as well as the ability to sync to external MIDI clock. Sound characteristics of the SL-20 such as attack, duration, effect level, and direct level can be controlled by the onboard knobs or from an external Expression pedal.

Universal FX

The SL-20 is an addictive effect that inspires creativity. It's great for guitarists, but it's equally useful for other instrumentalists as well. Plug in a bass, keyboard, iPod, or any other instrument or music-playback device. DJs and dance-music artists will also love the SL-20 as a rhythmic-performance tool.

FEATURES
  • Instant groove and percussive-melody generator
  • 50 Slice patterns onboard, with adjustable attack and duration, including Harmonic Slice
  • Tap Tempo via onboard pedal switch; internal and MIDI sync
  • Sound characteristics such as attack, duration, effect level, and direct level are controllable via external Expression pedal (sold separately)

Chop it up and show 'em how it's done. Call or click today to order.

SPECIFICATIONS

SL-20 Slicer Guitar Effects Pedal

  • Nominal Input Level: -20 dBu
    Input Impedance: 1 Mohm
    Nominal Output Level: -20 dBu
    Output Impedance: 1 kohm
    Recommended Load Impedance: m10 kohms or greater
    Tempo: Quarter note 30 to 250 bpm
    Maximum recording time: 40 sec.

    Controls: START/STOP, REC, PLAY pedal, TAP pedal, EFFECT LEVEL knob, DIRECT LEVEL knob, BANK knob, PATTERN knob, ATTACK knob, DUTY knob, TEMPO knob, OUTPUT MODE button, PEDAL MODE button

    Indicator: MONO, FIXED, RANDOM, PING-PONG, AUTO, 3D PANNNER, 3D CROSS, LATCH, MOMENTARY, TEMPO, START/STOP, REC, PLAY, TAP, POWER

    Connectors: INPUT jacks R/MONO, L (1/4 inch phone type), OUTPUT jacks R/MONO, L (1/4 inch phone type), EXP PEDAL jack (1/4 inch TRS phone type), MIDI IN connector, AC adaptor jack

    Power Supply: DC 9 V, Dry battery LR6/R6 (AA) type x 6/AC Adaptor (PSA-series: optional) *1
    Current Draw: 110 mA

    Accessories: Owner's Manual, Leaflets ("USING THE UNIT SAFELY," "IMPORTANT NOTES," and "Information"), Dry battery (R6 (AA) type (carbon) x 6) *2

    Options: AC adaptor (PSA-series), Expression pedal (Roland EV-5, FV500L)

    Size and Weight
    Width: 173 mm (6-13/16 inches)
    Depth: 158 mm (6-1/4 inches)
    Height: 57 mm (2-1/4 inches)
    Weight: 1.1 kg (2 lbs. 7 oz.) Including battery
    * 0 dBu = 0.775 Vrms
    *1 Expected battery life under continuous use: 7 hours (Carbon), 18 hours (Alkaline). These figures will vary depending on the actual conditions of use.
    *2 The battery that was supplied with the unit is for temporary use-intended primarily for testing its operation. We also suggest replacing this with an alkaline dry cell.
    *The specifications are subject to change without notice.
Reviews
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Review Snapshot

by PowerReviews
BossSL-20 Slicer Guitar Effects Pedal
 
4.1

(based on 8 reviews)

Ratings Distribution

  • 5 Stars

     

    (3)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

60%

of respondents would recommend this to a friend.

Pros

  • Responsive (3)

Cons

No Cons

Best Uses

No Best Uses
    • Reviewer Profile:
    • Professional musician (3)

Reviewed by 8 customers

Displaying reviews 1-8

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(8 of 9 customers found this review helpful)

 
3.0

Interesting Pedal

By Anonymous

from Undisclosed

Comments about Boss SL-20 Slicer Guitar Effects Pedal:

One of the customer representatives at the store saw me messing with some pedals, and he took this one out of the display case. He told me how much fun he had with it, and recommended that I try it out. He had used the pedal on both guitar and bass, and claimed it sounded much better on bass. So I plugged my bass into it and was instantly blown away. It created some seriously strange and interesting sounds, and I ended up playing with it for more than an hour in the store. I was pretty well sold on it, and brought it home with me. However...The more I played on this thing at home, the more I felt limited by the sounds it creates. To give you a run down, this pedal is an audio pattern processor, which basically means that it plays different patterns over the notes you are playing. Coupled with any delay pedal, you can continue the patterns even after you stop playing, which is both cool and almost necessary, in my opinion. The first thing that dissapointed me was that there is no way to create your own patterns, you're stuck with the fifty patterns that Boss gives you. And while you may be thinking that fifty patterns sounds like a lot, try this pedal out first, becase most of these patterns sound exactly the same. There are a few variations in the sounds, such as a Harmonics feature which plays arpeggios for you. And a few other strange sounds. But overall, you can't really avoid the Kid A/techno/Postal Service-esque sounds that this pedal creates.I imagine that boss will be inventing newer and better slicer technology. Perhaps a pedal that allows you to create your own patterns. There are some cool ping pong and other stereo effects, and I'm sure this would be a cool thing to rig up for a DJ that was looking for some interesting electronic sounds. But overall, a very limiting pedal.

(4 of 4 customers found this review helpful)

 
5.0

Sounds good with keyboard

By orbs

from Illinois

About Me Novice

Pros

  • Compact Design
  • Excellent Sound Quality
  • Responsive

Cons

  • Limited Selection Of Effects

Best Uses

  • Amateur Recording
  • Home Studio

Comments about Boss SL-20 Slicer Guitar Effects Pedal:

I use this on my Korg and it's been a lot of fun to play with. I quit playing music for a while and picked it back up making soundscapes and noise in the vein of boards of canada (not as brilliant of course, no one can pull that off except boc themselves). I wanted to make some music you can get lost in and play in the dark. I picked this pedal up since the effects sounded pretty neat and right up my alley. I combined it with my boss space echo and boss giga delay and it makes some interesting sounds. It is limited on effects itself but combined and tweaked enough you can get a great sound for your songs or performances. I would highly recommend the boss psa power supply or it will eat your batteries up quick. I don't find too many reviews on pedals hooked up with keyboards so I'm hoping to see more people talking about it instead of looking up youtube videos to try and debate what my purchases should be.

(3 of 4 customers found this review helpful)

 
3.0

What it is...

By -jim

from NY & Nashville

About Me Professional Musician

See all my reviews

Ask me a question

Pros

    Cons

    • Limited Selection Of Effects

    Best Uses

    • Inspiration

    Comments about Boss SL-20 Slicer Guitar Effects Pedal:

    I couldn't find a good description of what this actually does so here's my try.

    This is basically a gate with built-in trigger patterns, like a fancy version of tremolo. It does not change the signal other than cutting it off and on (except for the 'harmonic patterns' which just add pitch shift to some of the 'slices'). It does have an attack control which allows for a fade in or boost when the signal cuts in but unlike true ADSR control the sustain control doesn't allow for control over how the signal fades out. Instead it just controls how long it is on.

    It is not a looper although it has the ability to record a single track so you can play against it. I can't imagine getting much use out of this feature.

    Overall the pedal is kind of disappointing since it could have been really cool. I will never use it live so I'm not sure why it needs to be a pedal since in the studio the same effect can be accomplished with most gates by feeding the key (side-chain) input from a track with your pattern. I also have some plugins that do this.

    Not sure why I'm not sending it back but I think I might find a use for it someday. I guess you never know when a strange effect will spawn a new song.

    BOTTOM LINE: before you buy try it out and be sure you will have a use for it.

    (3 of 4 customers found this review helpful)

     
    4.0

    Interesting Pedal, not that useful

    By awol45

    from Maine

    About Me Professional Musician

    See all my reviews

    Pros

    • Great Beats
    • Responsive
    • Stereo 3D sounds
    • Versatile

    Cons

    • Hard to play with
    • Tap tempo

    Best Uses

    • Amateur Recording
    • Backing Tracks
    • Dj
    • Dubstep
    • Mobile DJ
    • Performances
    • Solo

    Comments about Boss SL-20 Slicer Guitar Effects Pedal:

    I like this pedal, it has some cool sounds. But it's hard to play with. I have used it for bass, guitar, and making backing tracks. As a bass player its hard to play with a guitar player that's using it unless you specifically have a song for the effect. It takes some arranging to make a spot for this. The stereo I/O is nice, but in most pedal board applications, it isn't necessary. Great sounds, but not sure its worth the full purchase price

     
    5.0

    I've Been Wanting 1 -- Glad I Bought It

    By James

    from undisclosed

    About Me Experienced

    See all my reviews

    Ask me a question

    Verified Buyer

    Pros

    • Excellent Sound Quality
    • Good Selection Of Effects
    • Just COOL!!
    • Versatile

    Cons

      Best Uses

      • Anytime you want something different

      Comments about Boss SL-20 Slicer Guitar Effects Pedal:

      Usual Boss Quality -- Not the 1st pedal you would buy but It does a lot of great things in my pedal loop. Like I said before --It's just cool ! Has 100's of patterns & the momentary option really makes it useful for any lead . It really shines on rhythm w/its percussion patterns. Snatch 1 up ASAP.

       
      4.0

      Boss Slicer

      By johnnylaundry

      from providence, ri

      About Me Professional Musician

      Pros

      • Good Selection Of Effects
      • Responsive

      Cons

        Best Uses

          Comments about Boss SL-20 Slicer Guitar Effects Pedal:

          Most demos I've seen of this pedal, the demo player is strumming chords...it works ok when strumming but, this pedal works best when you play single notes and just let them sustain. If you wanna strum, just get a regular vibrato. This is the type of pedal where you hit one note and/or chord and just let the pedal do most of the work. Great pedal for making your guitar sound like a keyboard/synth. I use it to make weird guitar loops. The built in looper is ok but no storage. I use a Boss Loop Station to record any loop I make on the Slicer.

          (0 of 1 customers found this review helpful)

           
          5.0

          Flippin Sweet!

          By Chris Shattuck

          from Michigan

          Comments about Boss SL-20 Slicer Guitar Effects Pedal:

          I love this pedal! If you need a ton of atmosphere sounds and really cool backing tracks, put this pedal on your board. I have used this on Sunday mornings with our band, and in my home by myself. In both cases, everytime I step on it I smile.Try this pedal with an ebow and tell me it isn't cool. I dare you.

          (0 of 1 customers found this review helpful)

           
          4.0

          Great if used correctly

          By JOHO0545

          from Wisconsin

          See all my reviews

          Comments about Boss SL-20 Slicer Guitar Effects Pedal:

          If running this pedal alone isnt enough, i run it through a boss phase shifter as well for the rise/fall aspect. I have tried running it through my RE-20, but the tap tempo has to be really slow in order to get a nice delayed tone. The harmonic patterns are great, and i would love to try this through a bass rig. Thingamagoop adds a groove too.

          Displaying reviews 1-8

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