Boss SY-1 Synthesizer

From the listing

Seller's description

11 Voices for each control group Control groups include: LEAD 1/2—A wide range of sounds suitable for single-note soloing. PAD—Full tones that work great with chords, from layered pads to synth brass and more. BASS—Fat synth bass sounds, including filtered and sub-octave tones. STR—Classic analog-style strings, including layered voices and sweeping textures. ORGAN—A large selection of organ sounds, including many with rotary-style modulation. BELL—Percussive synth sounds with metallic resonance. SFX 1/2—A variety of synth sound effects, including explosive one-shot sounds, animated pitch/filter voices, and more. SEQ 1/2—Pulsating sounds with rhythmic pitch or filter changes. A pedal above and beyond. Needs to be played to be fully explored.