ASHUN SOUND MACHINES / Leviasynth Keyboard

＜＜February 2026 Release!＞＞ Leviasynth Keyboard is ASM's new hybrid algorithmic synthesizer. With 16 voices, 8 oscillators per voice, and a combination of analog and digital filters, Leviasynth is a dream synthesizer for sound designers.

The 61-key polyphonic aftertouch-capable keybed and 4-octave ribbon controller provide an exceptional playing experience.
Leviasynth also supports MPE.
Patch programming is extremely easy thanks to the multi-color touchscreen and intuitive user interface.

Oscillators can be grouped into sets called algorithms, defining interactions between them.
144 preset algorithms are provided, and you can customize one additional algorithm per patch.
Furthermore, the algorithm morph function allows nearly unlimited modification of oscillator configurations.
Each oscillator offers over 300 waveforms, and seven independent oscillator modes enable the creation of a wide range of sounds.

The 3-track sequencer records both notes and macro automation, while the arpeggiator features an Entropy function enabling advanced real-time note manipulation.
Single mode utilizes all 16 voices per patch, while multi mode assigns 8 voices to each of two parts, simplifying layer and split configurations.

The free ASM Patch Manager for Mac and PC simplifies firmware updates and patch management.
It ships with 512 single-mode patches and 256 multi-mode patches, all created by globally acclaimed sound designers.
A total of 1024 patch locations are available in single mode and 640 in multi mode.

Oscillator configurations include phase modulation, frequency modulation, pulse width modulation, HTE sync, and three types of phase distortion.
Each of the 8 oscillators features a dedicated volume envelope, plus 5 shared envelopes and 5 LFOs.
These can be freely routed using a 32-slot modulation matrix.
Alongside a Hydrasynth-style digital multimode filter and an analog low-pass filter with pre-drive saturation and self-oscillation, it incorporates two insert effects and two master effects, enabling extensive sound design.

Specifications
Type Hybrid Synthesizer
Sound Engine Type Algorithmic
Analog Digital Digital and Analog
Number of Keys 61
Keyboard Type Polyphonic Aftertouch-Capable Keyboard On/Off Velocity-Sensitive
Other Controllers Ribbon Controller Pitch Bend Modulation Wheel
Polyphony 16 Voices Full Layer Split
Patches: 1024 (Single Mode) / 640 (Multi Mode)
Oscillators: 8 Oscillators, Over 300 Waveforms
LFO: 5 per Voice, Sinusoidal, Triangle, Rising Sawtooth, Falling Sawtooth, Square, Pulse 27, Pulse 13, Sample and Hold, Noise, Random, Step, Tempo Sync, Semitone Lock Support
Envelope 1 per oscillator 5 per voice Tempo Sync Support Up to 4 variable trigger sources
Analog Filter 4-pole low pass 24dB per octave
Digital Filter 18 types
9 types of insert effects, 5 types of delay, 4 types of reverb
Effect types: Chorus, Flanger, Rotary, Faeser, Lo-Fi, Tremolo, EQ, Compressor, Distortion, Delay, Reverb
Arpeggiator: 9 modes, Up, Down, Up-Down, Up-Slash-Down, Order, Random, Random Once, Chord, Phrase
Additional Variables Entropy Octave Mode Range Gate Length Swing Ratchet Chance Step Offset
Other Modulation Matrix 32 Slots Macro Controllers 8 Favorite Functions 2 Types of Randomizers MPE Support Microtuning
Audio Output 2 Balanced 1/4" Outputs Left Mono Right
Headphone Output 1 x 1/4“ jack, 1 x 1/8” jack, independent volume
USB Type B
MIDI Input Output Thru
Pedal Input 2 x 1/4" jacks (Expression, Sustain)
Other I/O 2 x 1/8" inputs, Mod1 Mod2, 5 x outputs (CV, Gate, Mod1 Mod2, Clock)
Power Supply: 12V 2A DC
Height: 11.55cm
Width: 96.5cm
Depth: 34.6cm
Weight: 12.2kg
MPN: LSKB