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- Тype: Desktop Synthesizer
- Sound Engine: Analog
- Number of Keys: 25
- Polyphony: 4
Roland AIRA Compact S-1 Tweak Synth Synthesizer
The Roland S-1 Tweak Synthesizer packs the legendary SH-101's analog character into a pocket-sized polysynth with four-voice polyphony, ACB modeling, and modern performance tools. Built around 25 multi-function pads and four oscillators, it delivers everything from punchy basses to evolving pads in a unit weighing just 305 g. The onboard 64-step sequencer, arpeggiator, and D-Motion gesture control invite hands-on creativity wherever inspiration strikes.
- Four-voice polyphony in a battery-powered chassis for sketching ideas anywhere
- OSC Draw and OSC Chop expand the SH-101 voice into custom harmonic territory
- JUNO-derived chorus, tempo-synced delay, and studio-grade reverb on dedicated knobs
- USB-C, TRS MIDI, and AIRA Sync I/O integrate with any studio or stage rig
Roland S-1 Tweak Synthesizer — SH-101 DNA in a Modern Polysynth
The Roland S-1 Tweak Synthesizer is a pocket-sized micro polysynth that channels the iconic SH-101 through Roland's Analog Circuit Behavior (ACB) technology. Four-voice polyphony and futuristic wave-manipulation tools bridge classic analog character and modern workflows. Battery-powered at 305 g, it invites beginners and seasoned sound designers to explore synthesis through a tactile interface.
ACB Modeling Meets Custom Waveform Design
What sets the S-1 apart is its deep waveform-editing layer. OSC Draw lets players sculpt custom waveshapes across 16 adjustable nodes, while OSC Chop slices waveforms into metallic, comb-filtered timbres. D-Motion gesture control translates real-time tilt into expressive parameter changes for live performance.
Four Oscillators and Full ADSR Shaping
The sound architecture mirrors the SH-101's signal flow while extending it with polyphony. Square, sawtooth, sub-oscillator, and noise sources run simultaneously for a rich harmonic foundation. A filter section with cutoff and resonance sits alongside a complete ADSR envelope and LFO.
- Oscillators: 4 (square, saw, sub, noise) — always available for layered tone design
- Polyphony: 4 voices — play chords or switch to unison for thick leads
- Envelope: Full ADSR — shape amplitude and filter behavior independently
- LFO with selectable waveforms animates pitch, filter cutoff, or PWM
64-Step Sequencer, Arpeggiator, and D-Motion
The 64-step sequencer supports 64 patterns with motion recording, probability, sub-steps, and velocity. An onboard arpeggiator and Step Loop function enable live fills, while D-Motion turns the chassis into a performance controller.
- Sequencer: 64 steps, 64 patterns — store full song ideas with motion automation
- Arpeggiator: Yes — generate cascading note sequences with one touch
- Pitch bend and modulation respond to D-Motion gestures or external MIDI controllers
Classic Roland Effects and Modern I/O
The effects engine draws from Roland's most beloved processors. Chorus circuits derived from the JUNO and JX-3P shimmer across stereo fields, while delay offers manual and tempo-synced modes. Reverb includes Ambience, Room, Hall, Plate, Spring, and Modulation algorithms with adjustable parameters.
- Effects: Chorus, Reverb, Delay — JUNO-derived chorus, syncable delay, multi-mode reverb
- Keys: 25 multi-function pads (2+ octave range) — playable keybed plus step and chord interface
- USB-C, TRS MIDI (IN/OUT), and AIRA Sync (IN/OUT) connectivity — class-compliant, no driver needed
- Battery: Lithium-ion, up to 4.5 hours — play anywhere without a power outlet
Ideal for Beginners, Travelers, and Tweak-Happy Sound Designers
Beginners and intermediate players who want a tactile, direct-access synth will find the S-1 a compelling choice. Its front-panel layout exposes core sound-shaping controls without menu diving, making it an excellent learning tool. Traveling producers benefit from the 4.5-hour battery and class-compliant USB-C. OSC Draw and OSC Chop unlock harmonic territory beyond the original SH-101 for sound designers.
The SH-101 Legacy Lives On in ACB
The Roland SH-101, released in 1982, became one of the most beloved monosynths of the analog era, prized for its punchy basses and immediate hands-on interface. Roland's Analog Circuit Behavior technology recreates that character at the circuit level, then extends it with polyphony and custom waveform editing.
Number of Keys: 25
This instrument has 25 keys, equivalent to 2 octaves, providing a wide range of tones for a variety of musical applications.
Polyphony: 4
The polyphony of this instrument allows up to <%=tp_value % notes to be played simultaneously, providing rich and complex musical possibilities.
LFO: Yes
An LFO, or low frequency oscillator, brings electronic sound to life. It adds movement and interest to synthetic sounds and effects, playing an important role in both subtle synthesis and bold sound design. However, you won't hear the LFO itself because it acts as a modulator. This means that it does not directly affect the audio signal, but adjusts other parameters such as oscillator pitch and filter clipping.
Envelope: Yes
The Envelope filter gives you precise control over the dynamics and shape of the sound. This filter provides greater flexibility in adjusting and customizing sound characteristics, enhancing the overall quality and expressiveness of the performance.
Pitch Bend: Yes
The Pitch Bend allows smooth pitch changes, adding expressiveness to musical expression. Often used to create effects such as glissando or vibrato, this feature allows the player to make subtle or dramatic changes to the sound in real time. Pitch bend allows musicians to create smooth transitions between notes, increasing the dynamics and expressiveness of their performances.
Modulation: Yes
Modulation allows you to change different aspects of the sound in real time, opening up a wide range of creative possibilities. For example, it can affect the pitch of the sound, creating a vibrato effect, or it can change the amplitude of the signal, creating a tremolo effect. It can also adjust filtering to create smooth transitions between frequency bands and dynamic textures. Modulation can also be used to change the character of the sound depending on the time or intensity of playing, giving the sound a lively and moving character.
Sequencer: Yes
The sequencer provides musicians with a tool for composing and arranging music, allowing them to create and edit musical sequences. This feature allows you to record and play back repeating patterns. This makes it easy to create complex rhythms and melodies. The sequencer also allows you to layer different musical elements on top of each other, sync with other devices, and adjust parameters in real time. This flexibility makes the sequencer an invaluable tool for producing music, experimenting with new sounds and creating original compositions.
Arpeggiator: Yes
The Arpeggiator transforms chords into sequences of individual notes played in various rhythmic and melodic patterns. Instead of playing the chords as a harmonic whole, the Arpeggiator breaks the chords into individual notes and plays them sequentially according to the selected algorithm.
Effect Types
- Chorus
- Reverb
- Delay
Headphone Output: Yes
The headphone output allows direct connection of headphones for private listening. This output provides a convenient way to enjoy the sound without disturbing others or ambient noise.
Inputs
- MIDI IN Jack 3,5mm TS
- Sync IN Jack 3,5mm TS
- AUX IN
Outputs
- Headphone Jack 3,5mm TRS
- MIDI OUT Jack 3,5mm TS
- Sync OUT Jack 3,5mm TS
- USB-C
MIDI Interface: Yes
It supports MIDI, allowing you to connect and communicate with other MIDI-compatible devices. This feature extends control and integration into the larger music environment, increasing flexibility and creativity in music creation.
Battery Operation: Yes
Battery power provides flexibility and mobility. This feature allows you to use the device anywhere, even in places where an electrical outlet is not available. Battery power is ideal for situations that require portability and independence from the grid, whether you're outdoors, on the road, or in a location with limited access to electricity.
Package Contents
- Manual
- USB-C - USB-A Cable
Тype
Desktop Synthesizer
LFO
Envelope
Yes
Oscillators
Modulation
Faders
No
Arpeggiator
MIDI Interface
Bluetooth
Built-in Speaker
Sound Engine
Number of Keys
Key Size
Mini
Polyphony
Pitch Bend
Yes
Display
Display Type
Headphone Output
Pedal Inputs
Microphone Input
USB MIDI
USB to Device
USB to Host
Filter
Yes
Sequencer
Yes
Package Contents
Width (cm)
18.8
Height (cm)
3.62
Depth (cm)
10.6
Net Weight (kg)
0.305
Made in
China
All reviews come from verified customers who have purchased a product from us in the past.
AI summary of reviews
Based on the number of reviews: 50
Strengths
- Sound quality: Customers consistently praise the excellent sound quality, noting its richness and the extensive possibilities for sound design and tweaking.
- Portability and size: The synthesizer's small size and portability are highly valued, allowing users to easily carry it anywhere and use it on the go.
- Feature-rich: Despite its compact form, the device is packed with features, including polyphony, arpeggiator, motion sequencer, and built-in effects like reverb and echo.
- Value for money: Many customers highlight the exceptional price-to-performance ratio, considering it an excellent investment for the capabilities it offers.
- Connectivity and integration: The synthesizer works well with external sequencers and other audio devices, featuring MIDI and sync inputs/outputs, and a mix-in input for connecting additional gear without a mixer.
Weaknesses
- Menu navigation: Some users find the menu system complex and initially confusing, requiring time and manual consultation to master.
- Ergonomics: The small size, while a strength, leads to less ideal ergonomics compared to larger synthesizers, particularly with the rubber keys and non-motorized pots.
What customers repeat
Verdict
Documents
Instructions for use
Safety instructions
Please refer to the user manual for the specific safety instructions for this product.
