Questions? Call Us:

Boss SL20
Slicer Guitar Audio Processor Pedal


Inject a shot of high-octane fuel into your music with the SL-20 Slicer. Instantly transform a guitar, bass, keyboard, or vocal into a pulsating groove instrument.
Learn More
Our Price: $189.99
List Price: $245.00
You save 22%!
Write the first review.

Full Compass offers free ground shipping on thousands of stock and non-stock (special order) items for orders placed on this web site and shipping in the continental US (48 states).

Learn More

Free Shipping


We guarantee to match pricing on the products we sell for new, identical and immediately available products if you see them offered at a lower price. Please contact us if you find a lower price before purchasing.

Learn More

Low Price


Boss SL20
Usually ships in 7-14 business days.
Need it sooner? Call us!

Similar Products

Inject a shot of high-octane fuel into your music with the SL-20 Slicer. 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 transforms your music intopercussive "chopped" grooves. Fifty rhythmic patterns are onboard, withadjustable note attack and duration, plus amazing Harmonic Slice effects.Create high-energy patterns onstage in real-time, or use the SL-20 as asongwriting and recording tool. Play the sliced sounds in realtime whilecapturing them with Loop Record.
  • Flexible Control
    An internal tap-tempo feature isincluded, as well as the ability to sync to external MIDI clock. Soundcharacteristics of the SL-20 such as attack, duration, effect level, anddirect level can be controlled by the onboard knobs or from an externalExpression pedal.
  • Universal FX
    The SL-20 is an addictive effect thatinspires creativity. It's great for guitarists, but it's equally useful forother instrumentalists as well. Plug in a bass, keyboard, iPod, or any otherinstrument or music-playback device. DJs and dance-music artists will alsolove the SL-20 as a rhythmic-performance tool.

Boss SL20 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 SL20 Specifications:

  • Nominal Input Level: -20 dBu
  • Input Impedance: 1 M ohm
  • Nominal Output Level: -20 dBu
  • Output Impedance: 1 k ohm
  • Recommended Load Impedance: 10 k ohms or greater
  • Tempo: 30 to 250 bpm
  • Maximum Recording Time: 40 seconds
  • Controls: START/STOP pedal, TAP pedal, EFFECT LEVELknob, DIRECT LEVEL knob, BANK knob, PATTERN knob, ATTACK knob, DUTY knob,TEMPO knob, OUTPUT MODE button, PEDAL MODE button
  • Indicators: POWER indicator (serves also as thebattery check indicator), START/STOP indicator, REC indicator, PLAY indicator,TAP indicator, MONO indicator, FIXED indicator, RANDOM indicator, PING-PONGindicator, AUTO indicator, 3D PANNER indicator, 3D CROSS indicator, LATCHindicator, MOMENTARY indicator, TEMPO indicator
  • Connectors: INPUT jacks R/MONO, L (1/4" phone type),OUTPUT jacks R/MONO, L (1/4" phone type), EXP PEDAL jack (1/4" TRS phonetype), MIDI IN connector, DC IN jack (DC 9 V)
  • Power Supply: DC 9 V, Dry battery LR6/R6 (AA) type x6/AC Adaptor (*Expected battery life under continuous use: 7 hours (Carbon),18 hours (Alkaline). These figures will vary depending on the actualconditions of use.)
  • Current Draw: 110 mA
  • Accessories: Owner's Manual, Leaflets ("USING THEUNIT SAFELY", "IMPORTANT NOTES", and "Information"), Dry battery (R6 [AA] type[carbon] x 6) (*The battery that was supplied with the unit is for temporaryuse-intended primarily for testing its operation. We also suggest replacingthis with an alkaline dry cell.)
  • Options: AC adaptor (PSA-series), Expression pedal(Roland EV-5)
  • Dimensions (W x D x H): 6 13/16" x 6 1/4" x 2 1/4"
  • Weight: 2 lbs 7 oz

To be the first to review this item, click here.

Add to Cart

We're sorry, only of this item available

Call a Sales Pro at 800-356-5844 for more information

© 2017 Full Compass Systems, LTD  9770 Silicon Prairie Parkway, Madison, WI 53593  All rights reserved.

We are not responsible for typographical errors in pricing or product specification
inaccuracies in our catalog or web site. Prices are subject to change without notice.