Divine a new world of sound with the S-1 Tweak Synthesizer, a potent micro polysynth inspired by the legendary Roland SH-101. Jam with the snappy basses and expressive leads you’ve loved for years. Then launch your music into uncharted territory with futuristic wave manipulation, onboard sequencing, and unique performance features designed for modern creators. With its inspiring hands-on controls and intuitive workflow, the powerful S-1 delivers a fun and satisfying experience for beginners and serious synth adventurers alike. Ultra-portable polysynth inspired by the legendary SH-101 Authentic SH-101 sound driven by Roland’s evolving Analog Circuit Behaviour (ACB) technology Craft all-new tones with powerful oscillator drawing, oscillator chop, and riser tools Mono, poly, unison, and chord modes and four-voice polyphony Square, sawtooth, sub, and noise oscillators Hands-on panel with familiar synth controls for instant sound shaping and live performance tweaks Onboard keyboard with two-plus octave range 64-step sequencer and 64 patterns for on-the-spot song creation Advanced programming tools, including motion recording, probability, sub step, last step, and velocity Easy-to-use arpeggiator with eight phrase types D-Motion feature for controlling pitch, mod, and other parameters by physically moving the S-1 Colour and process your sounds with a variety of delay, reverb, and chorus effects Comprehensive connectivity with audio, MIDI, and sync I/O plus AIRA Link Class-compliant USB-C audio/MIDI interface—no drivers needed Lithium-ion battery with up to 4.5 hours of operation per charge Sturdy construction and high-quality rubber pads Connect to other AIRA Compacts and standard MIDI devices with optional BOSS TRS MIDI cables