BOSS SY-1 Synthesizer Effects ...

£177.00 In Stock

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BOSS SY-1 Synthesizer Effects Pedal

RRP £208.00 Save £31.00


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Manufacturer's ID: SY-1

With the SY-1, it’s never been easier to infuse your creative arsenal with BOSS’s legendary guitar synth technology. This amazingly expressive tool is filled with 121 ultra-responsive sounds, all distilled down into a BOSS compact pedal that slides easily into any setup. Best of all, it’s as simple to use as a standard stompbox, so you don’t need any background in synth programming to bring a new world of sonic textures to your music.


  • Authentic BOSS polyphonic guitar synth in a compact pedal
  • No special pickup required—play rich, dynamic synth tones with any guitar or bass
  • 121 total sounds (11 types and 11 variations), all ready to play with no programming knowledge needed
  • Includes a wide variety of analog-style synth sounds, from leads, basses, and layered organs to sweeping pads and arpeggiated sequences
  • Latency-free performance for unrestricted musical expression
  • Quickly adjust sounds to taste with Tone/Rate and Depth controls
  • Hold function for playing normal guitar over sustained synth voices
  • Blend synth and normal guitar sounds with independent level controls
  • Parallel send/return loop for easy integration with other pedals on your board
  • Mode switch optimizes the synth engine for guitar or bass
  • Supports extended control with an external footswitch or expression pedal

Expressive Synth Sounds, No Programming Needed

The SY-1 transforms any guitar or bass into a versatile synthesizer that’s fun, inspiring, and ready to play. Backed by advanced tech first developed for the SY-300, this super-cool pedal delivers a huge selection of analog-style synth sounds while occupying minimal space on your board. What’s more, all the sounds are polyphonic, allowing you to play both single notes and chords.

Plug-and-Play and Latency-Free

The SY-1 can be used with any guitar or bass via a standard 1/4-inch cable, providing an easy, plug-and-play experience. Thanks to custom DSP and the latest BOSS innovations, the SY-1 offers latency-free performance that’s a natural extension of your instrument, letting you to play freely and organically without altering your normal technique in any way.

A Universe of Synth Sounds Inside

With its 11 categories and 121 total sounds, the SY-1 puts an enormous array of synth colors at your fingertips. Expressive leads, sweeping pads, layered organs, fat basses, and more are all on tap, plus a variety of rhythmic synth patterns that are a blast to jam with. And with the grab-and-go Tone/Rate and Depth knobs, you’re able to adjust any synth voice just how you like, including changing the pitch on some sounds.

At Home in Any Rig

As a standard BOSS compact, the SY-1 drops into a serial pedal chain like any other stomp. But with the send/return loop and dedicated mix controls, it’s also possible to blend one or more pedals in parallel with the SY-1’s synth voices. For example, you can patch drive pedals in the loop, and then send the combined output to mod, delay, and reverb pedals for overall processing. The send can be used as a direct out as well, enabling you to route synth and guitar sounds to separate destinations.

Enhance Performances with Real-Time Control

The SY-1 offers a number of ways to make your synth performances even more dynamic and expressive. Pressing and holding the pedal switch sustains the last-played synth sound, allowing you to jam with regular guitar over the top. You can also connect an external footswitch for tap tempo and octave-shift effects, or plug in an expression pedal for continuous Tone/Rate control.

Customer reviews

Overall Rating 4.9/5 (14 reviews)

James H. - 17/8/2023

Probably the only pedal that's useful and also great fun.

Alan G. - 9/8/2023

The effect is brilliant and I was surprised at the range of sounds. It's a good machine to enhance home recordings too. Better using my dd-200 echo!

Stan W. - 23/7/2023

Daniel C. - 9/2/2023

Easy to use, does not require separate power supply and provides many sounds without having to understand synth set up.

don m. - 8/10/2022

Mark E. - 7/6/2022

Fantastic pedal. My favourite pedal in my line up of pedals. It sends my sounds into orbit. Be careful when you step on it, it might just shoot you up into space. ?

Mark B. - 14/7/2021

Lots of sounds. Some good, a few great (a number which are not so great) A good basic intro into guitar synth sounds. I suspect in a few months the limitations will get a bit more frustrating.

Kenneth F. - 14/4/2021

Jason C. - 1/4/2021

Still learning how to use it, the possibilities are endless.

Denis C. - 10/10/2020

Superb! Marvellous pedal. Great for creating ambient soundscapes, layering sounds or simply making your guitar sound like a synth... Works well with both bass and guitar. Tracks well. Great features with the loop you can send your clean tone to other effects and blend that in with the synth sound... Comes into it's own with a decent delay and reverb after it - for which I've been using the Keeley Caverns v2.... Highly recommended... My first play with guitar is here... Thank you very much, Matthew Elvis Brown.

Matt B. - 29/9/2020

This is a great piece of kit with a huge amount of sounds to keep you busy. It's not a typical plug in and play pedal though and getting the most out of it takes a bit of patience. The effects loop is a nice touch but similarly takes a bit of figuring out and I think most people 2ho are keen on this would benefit from on expression pedal

Alex J. - 13/8/2020

Safe and secure purchase and fast reliable service.

brian m. - 21/5/2020

The Bose pedal was easy to order. It arrived very quickly and well packaged

James F. - 29/4/2020

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