ASM's new 16-voice synth combines algorithmic synthesis with hybrid filtering across keyboard and desktop formats.
Ashun Sound Machines has announced Leviasynth at NAMM 2026, arriving in both 61-note keyboard and desktop formats. The Leviaysnth is built around a 16-voice engine where each voice gets eight oscillators of algorithmic synthesis, and digital and analogue filtering work together in a hybrid signal path—designed for expressive performance and deep sound design.
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The Leviasynth engine
Eight oscillators per voice depart from the typical two or three found in most synths, and ASM has loaded over 300 waveshapes into the system for building especially thick sounds. The algorithmic engine encourages total experimentation with unique oscillator combinations and structures—from generating bass and lead tones to rich pads and evolving ambient textures. Leviasynth ships with 144 preset algorithms, and you can design and save custom algorithms for each patch.
Algorithm morphing adds another creative layer. You can select eight algorithms and morph between them for smooth transitions, letting sounds evolve in new ways over time. Each oscillator supports multiple synthesis modes, including phase modulation, frequency modulation, pulse-width modulation, HTE Sync, and three types of phase distortion. You can combine multiple synthesis modes within a single algorithm, which opens up some unique sound design territory.
The algorithm output feeds into dual filter stages. First up is ASM’s Hydrasynth digital filter with 18 different types and modes, ranging from standard low pass and high pass to more unusual options like the vocal formant filter. Second is a new pure analogue 4-pole resonant filter with custom-built pre-drive saturation and screaming self-oscillation. This creates a hybrid signal path that blends digital precision with analogue character.
Sound shaping comes via a 32-slot modulation matrix with 170 modulation sources and over 290 internal destinations, alongside comprehensive onboard effects borrowed from ASM’s Hydrasynth design. A built-in three-track sequencer features two note tracks and one parameter-automation track, paired with an arpeggiator that includes an Entropy function for creating real-time variations in patterns. You can also generate arpeggiator patterns directly from your own sequencer data.
For an example of how the Leviasynth works and to see its features in action, check out ASM’s video here:
Leviasynth Keyboard
The keyboard version pairs the Leviasynth engine with a 61-note Polytouch polyphonic aftertouch keybed, which allows each key to respond independently to pressure for added expression and control. A four-octave ribbon controller with multiple operating modes expands your real-time control options for pitch bending, modulation, and custom assignments. It ships with 512 Single-mode patches and 256 Multi-mode patches, plus a full-colour touchscreen with dedicated controls for sound design and performance.
Leviasynth Desktop
The desktop model is fit with the complete Leviasynth engine in a compact tabletop format with 16 Polytouch polyphonic aftertouch pads that also offer a step sequencing mode. VESA and 19-inch rack mounting support makes it suitable for studio setups where you’re already using a separate keyboard or controller. Like the keyboard version, it ships with 512 Single-mode patches and 256 Multi-mode patches, plus the same full-colour touchscreen interface.
Both models are supported by ASM’s Patch Manager software for macOS and Windows, which handles firmware updates, patch organisation, backup, and restoration. Leviasynth Keyboard and Desktop are expected to ship in February 2026. More information at ashunsoundmachines.com.
For more information, head to ashunsoundmachines.com.
