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Roland Aira Compact S-1 Tweak Synth Portable Polyphonic Synthesizer
Roland Aira Compact S-1 Tweak Synthesizer
Quickly and easily add snappy basses and expressive leads with the 4-voice Roland AIRA Compact S-1 Tweak Synthesizer. Inspired by the legendary SH-101, the S-1 Tweak Synth is a potent micropolysynth with futuristic wave manipulation, onboard sequencing, and a range of unique performance features. Create lavish tones with oscillator, envelope, filter, and LFO sections, adjust effects with dedicated knobs, and dive into deeper design tools with quick combo button presses. The bottom section of the panel features 26 multifunction pads, providing access to a keyboard with a two-plus octave range, a step-sequencer interface, and a wealth of creative options to spark fresh ideas.
A Powerful Sound Engine
-Push beyond classic waveforms (square, saw, sub, and noise) with new custom waveshapes that you draw yourself (Osc Draw), and Osc Chop, which unlocks even more harmonic potential with the ability to cut waveforms into sections for a labyrinth of metallic timbres.
- You can use the noise oscillator as an independent riser to add sweeps and pulsing sound effects. Add shimmering dimension with lush choruses derived from the iconic JUNO and JX-3P synths, introduce spaciousness and movement with manual and tempo-synced delays, and envelope sounds with studio-grade reverb effects and a variety of adjustable parameters.
Sequencing and Performance Features
-With its 64-step sequencer and 64 patterns, the S-1 is made for on-the-spot music capture and song development.
-Motion recording, probability settings, sub steps, and other features like velocity, shuffle, and portamento are also available to bring sounds to life.
-A unique D-Motion controller creates compelling sound changes simply by moving the synth, while the Step Loop function is perfect for live fills and on-the-fly rhythmic improv.
-There's also an onboard arpeggiator and the ability to transpose patterns to instantly add harmonic richness to jams.
Highlights
- Ultraportable 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, 3.5mm MIDI Type-A, 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

$269.99