Divine a new world of sound with the S-1 Tweak Synth, 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.

 

Features

• Ultra-portable polysynth inspired by the legendary SH-101
• Authentic SH-101 sound driven by Roland’s evolving Analog Circuit Behavior (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
• Color 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

 

Specifications

User Patterns	64
Step Sequencer	64 steps
Effects	DELAY, REVERB, CHORUS
Display	7 segments, 4 characters (LED)
Connectors	SYNC (IN, OUT) jacks: Miniature phone type MIX (IN, OUT) /PHONES jacks: Stereo miniature phone type MIDI (IN, OUT) jacks: Stereo miniature phone type USB port: USB Type-C® (Audio, MIDI)
Power Supply	Rechargeable lithium-ion battery Obtained via USB port (USB bus power)
Current Draw	500 mA
Expected battery life under continuous use	Approx. 4.5 hours These figures will vary depending on the actual conditions of use.
Expected battery charging time	Approx. 3 hours To charge the unit, use the USB port of a computer or a commercially available USB power supply adaptor (5 V, 500 mA or higher).
Dimensions	188 (W) x 106 (D) x 36.2 (H) mm 7-7/16 (W) x 4-3/16 (D) x 1-7/16 (H) inches
Weight (including batteries)	305 g 11 oz
Accessories	Leaflet ”Read Me First” USB Type-C to USB Type-A cable