At NAMM 2026, Ashun Sound Machines has unveiled the Leviasynth, a groundbreaking hybrid synthesizer available in both a 61-key keyboard and a compact desktop version. This innovative instrument is powered by a robust 16-voice engine, with each voice featuring an impressive eight oscillators designed for algorithmic synthesis. The combination of digital and analog filters creates a sophisticated hybrid signal path that enhances expressive performance and enables intricate sound design.
Let’s delve into the details of the Leviasynth engine. With eight oscillators per voice, Leviasynth breaks away from the conventional two or three found in most synthesizers. ASM has incorporated over 300 waveshapes, allowing musicians to craft exceptionally rich sounds. The algorithmic engine facilitates extensive experimentation, enabling users to create everything from punchy bass lines and soaring leads to lush pads and dynamic ambient textures. Included with the synth are 144 preset algorithms, and users can also design and save their own custom algorithms for each patch they create.
But here's where it gets truly fascinating: the algorithm morphing feature introduces a new layer of creativity. Users can select eight different algorithms and smoothly transition between them, allowing sounds to evolve and change over time. Each oscillator supports various synthesis modes, including phase modulation, frequency modulation, pulse-width modulation, HTE Sync, and three types of phase distortion. The ability to mix multiple synthesis modes within a single algorithm unlocks unique possibilities for sound development.
The output from these algorithms is routed through dual filter stages. The first stage employs ASM’s Hydrasynth digital filter, offering 18 varieties that range from standard low-pass and high-pass filters to more unique options like vocal formant filters. Following this is a brand-new pure analog 4-pole resonant filter featuring custom pre-drive saturation and intense self-oscillation capabilities. This combination creates a hybrid signal path that merges the accuracy of digital processing with the warmth of analog tones.
Sound shaping is further enhanced by a 32-slot modulation matrix, which provides 170 modulation sources and more than 290 internal destinations. Moreover, the synth includes a comprehensive array of onboard effects adapted from ASM’s Hydrasynth. A built-in three-track sequencer, which consists of two note tracks and one parameter-automation track, works alongside an arpeggiator equipped with an Entropy function. This feature introduces real-time variations in patterns, and users can even create arpeggiator patterns directly from their sequencer data.
To see the Leviasynth in action and explore its features, check out ASM’s video here:
The Leviasynth Keyboard version integrates the Leviasynth engine with a 61-note Polytouch polyphonic aftertouch keybed, allowing each key to respond independently to varying pressure, thus enhancing expressiveness and control. Additionally, it includes a four-octave ribbon controller with multiple modes for real-time pitch bending, modulation, and custom assignments. This version comes preloaded with 512 Single-mode patches and 256 Multi-mode patches, complemented by a full-color touchscreen that offers dedicated controls for sound design and performance.
On the other hand, the desktop model packs the complete Leviasynth engine into a compact tabletop format, featuring 16 Polytouch polyphonic aftertouch pads that also support step sequencing. With VESA and 19-inch rack mounting options, this model is perfect for studio setups that already utilize separate keyboards or controllers. Similar to the keyboard version, it is equipped with 512 Single-mode patches and 256 Multi-mode patches, plus the same intuitive full-color touchscreen interface.
Both models will benefit from ASM’s Patch Manager software, compatible with macOS and Windows, which streamlines firmware updates, patch organization, backup, and restoration processes. The Leviasynth Keyboard and Desktop versions are anticipated to be available for shipping in February 2026. For additional details, visit ashunsoundmachines.com.
