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Boss SL-20 Slicer Guitar Effects Pedal

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Hardshell Case of Boss SL-20 Slicer Guitar Effects Pedal
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Product Description

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.

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.


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


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.

Custom Guitar's Friend Gold Coverage

Gold Coverage goes above and beyond the manufacturer's warranty to protect your gear from unexpected breakdowns, accidental damage from handling and failures. This plan covers your product for one, two, three or up to five years from your date of purchase, costs just pennies per day and gives you a complete "no-worry" solution for protecting your investment.

Gold Coverage Includes:

Unexpected and unintentional spills, drops and cracks Normal wear and tear Power surges Dust, internal heat and humidity

Other plan features include:

For products over $200, No Lemon Policy applies. If it fails for the same defect 3 times, it is replaced on the 4th breakdown. (Does not apply to failures due to drops, spills, and cracks) For products under $200 experiencing the above failures, a Custom Guitar's Friend gift card will be issued for the full price of the product + tax. Shipping fees covered if required for repair or replacement Plans are transferable in the event merchandise is sold Plans are renewable on new gear

*Limitations and exclusions apply. See terms and conditions for program details

Term for New Gear begins on date of purchase but does not replace the store return policy or manufacturer coverage.

Displaying reviews 1-8

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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.
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.
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.
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
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.
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.
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.
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.
Boss SL-20 Slicer Guitar Effects Pedal

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