The Boss SY-1 is a versatile guitar synthesizer in a compact pedal format that offers a wide range of sounds and effects. With 121 different sounds ranging from leads to basses, pad sounds, and arpeggiator sequences, this effect pedal allows for a creative expansion of musical expression. It is easy to use and requires no special knowledge of synthesizer programming. The SY-1 can be used with both a guitar and a bass, providing a latency-free performance that ensures an optimal playing experience. The ability to play chords is supported by the pedal's polyphonic operation. A mode switch allows the synthesizer engine to be specifically tailored to the respective instrument, while the hold function enables the last played sound to be sustained while playing with another sound. Thus, the SY-1 is an ideal tool for musicians looking to expand their sound palette.

• 121 different synthesizer sounds in 11 categories
• Polyphonic operation for playing chords
• Easy to use without prior knowledge of synthesizer programming
• Hold function for creative play with layered sounds
• Expandable control options with optional footswitch or expression pedal.