Boss SL20 Slicer


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.

Product 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

Nominal Input Level
-20 dBu
Input Impedance
1 Mohm
Nominal Output Level
-20 dBu
Output Impedance
1 kohm
Recommended Load Impedance
10 kohms or greater
Quarter note 30 to 250 bpm
Maximum recording time
40 sec.
START/STOP 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
POWER indicator (serves also as the battery check indicator), START/STOP
indicator, REC indicator, PLAY indicator, TAP indicator, MONO indicator, FIXED
indicator, RANDOM indicator, PING-PONG indicator, AUTO indicator, 3D PANNNER
indicator, 3D CROSS indicator, LATCH indicator
MOMENTARY indicator, TEMPO indicator
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, DC IN jack (DC 9 V)
Power Supply
DC 9 V, Dry battery LR6/R6 (AA) type x 6/AC Adaptor (PSA-series: optional) *1
Current Draw
110 mA
Owner's Manual, Leaflets ("USING THE UNIT SAFELY," "IMPORTANT NOTES," and "Information"), Dry battery (R6 (AA) type (carbon) x 6) *2
AC adaptor (PSA-series), Expression pedal (Roland EV-5, FV500L/H)
Size and Weight
173 mm
6-13/16 inches
158 mm
6-1/4 inches
57 mm
2-1/4 inches
1.1 kg
2 lbs. 7 oz.
Barcode # 761294406199
Brand Boss
Shipping Weight 1.5200kg
Shipping Width 0.198m
Shipping Height 0.092m
Shipping Length 0.229m
Shipping Cubic 0.004171464m3
Unit Of Measure EACH

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