Item # 482466 | Customer Ratings: ( 5 Based on 3 reviews)

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Boss SL-20 Slicer Guitar Effects Pedal
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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.

Boss SL-20 Slicer Guitar Effects Pedal 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)
    Variety of output modes, including the unique 3D Panning for spacious sliced FX

Boss SL-20 Slicer Guitar Effects Pedal Specifications:

  • 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


    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.

Boss SL-20 Slicer Guitar Effects Pedal

Boss pedals - 5 year parts warranty
90 day labor warranty.
1 year warranty - Multitracks, Jamstations, etc.
Check with manufacturer for specific product warranty.

Get your gear covered!

Now you can get added warranty protection for your new gear. Pro Coverage steps in where the manufacturer's "normal wear and tear" ends. Our PRO COVERAGE program offers you UPGRADED COVERAGE if your product ever fails!

Pro Coverage includes:

  • Accidental damage protection (new gear only)
  • Expedited Repair
  • Free Shipping (for returns or repairs)
  • 100% Coverage for Commercial Use
  • Extended Return Period
  • Extended Price Protection
  • No Lemon Guarantee
  • Free Transfer of Coverage to a new owner
  • Repair Costs Covered for up to 3 years from date of purchase
  • Repairs Can Be Authorized Toll-Free by Phone or the via the web
Product Reviews
(Based on 3 reviews)
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Viewing Reviews 1 - 3 of 3
  • You'll trip for hours...

    As reviewed by Eric on 9/1/2011

    The only pedal I've found that really nails the phase-inversion "out of speakers trick" that makes your stereo speakers sound like surround. A few high end "two speaker surround" products for home theater use this trick as well, and you've definitely heard it, along with lots of other stereo expansion tricks (Muse's Absolution, etc). To get this hallucinatory 3D effect you typically do a bunch of complicated phase inversion, EQ filtering, and panning automation in a DAW (obviously not something you are going to do live). This pedal does an AMAZING job of turning these 3D effects into a live performance tool... You can apply groove patterns to your source signal and have those patterns mixed with your dry signal in any combination via external expression pedal. The groove patterns will bounce left to right far beyond your actual speakers... You can even set them to swirl around your head 360 (all with just two well-positioned speakers). It is a functional pedal too... You can easily slave its tempo to another device via MIDI clock sync and apply it as final "stereo expansion mastering" after a clock synced looper, drum machine, etc. Seriously, invest a little time/cash in this pedal and a proper dual amp setup and you'll trip out for hours

    3 of 3 people found this review helpful.
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  • Interesting and Versitile

    As reviewed by Jouji_Miichi on 7/13/2011

    I bought this pedal used after doing endless research on it. This peice offers a very unique sound but you WILL NOT get the full effect unless you use two amps. Using this pedal "Mono" style (with one amp) will give you cool sounds but when used in "stereo" (with two amps or one amp and the other line to PA system) it will slice your input and deliver it back to you in what ever variation you choose. I love the Ping Pong effect. The two harmonic banks offer you 20 different harmonic patterns to give your sound a funky, multi-toned rhythm that you will find in no other pedal. The only downside i found is that the Loop function is a little tricky to use in the sense that you must be aware of your effect level in relevance to your direct level to get the sound you want played back. I'm sure with a little practice you'll find exactly what your looking for.

    2 of 2 people found this review helpful.
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  • Amazing Just keep your feet on the ground.

    As reviewed by Preston on 5/26/2010

    I bought this effects pedal not to long after it came out. Just trying to yet again broaden my possibilities. It worked not only does it sound amazing stand alone but if you mix it with lets say a DD-7 Digital delay set on analog with an e-bow resonating the Low E string dropped to a D then loop that within the slicer and just play a few chords over it to start off you'll like what you hear. I've been in guitar center many times every time before i bought this device i wowed people with what i was doing. So my only suggestion is to keep your feet on the ground because you're head will be floating in the clouds.

    7 of 13 people found this review helpful.
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Westlake Village, CA 91359
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