Used BOSS SY1 Effect Pedal

The used BOSS SY-1 Synthesizer Pedal is in great condition and delivers fat, expressive synth tones without needing a synth keyboard. With 121 total sounds—including leads, pads, and basses—this compact stompbox features 11 types of synth with 11 variations each. It offers built-in expression pedal support, effect send/return loop, and latency-free performance. Compatible with guitar and bass, the SY-1 runs on a 9V power supply or battery, making it perfect for live or studio use.