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.
Boss SY-1 
Guitar Synthesizer Effect Pedal Boss SY-1 Guitar Synthesizer 
Boss SY-1 Guitar Synthesizer Effect Pedal
FEATURES:
– 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