Used BOSS SY1 Effect Pedal

Unlock lush synth tones from your guitar or bass with this used BOSS SY-1 Synthesizer pedal in excellent condition. Featuring 121 sounds across 11 categories, it delivers polyphonic tracking with zero-latency feel—no special pickup required. Blend direct and effect signals with independent level controls, shape textures with Tone/Rate knobs, and store quick variations via the onboard control function. Standard 1/4" in/out and 9V DC operation make it pedalboard-ready.