At NAMM 2026, Ashun Sound Machines has unveiled the Leviasynth, a groundbreaking hybrid synthesizer available in two formats: a 61-key keyboard and a compact desktop version. This innovative instrument features a powerful 16-voice engine, with each voice equipped with an astonishing eight oscillators, leveraging algorithmic synthesis. The integration of both digital and analog filtering in its signal path is specifically designed to enhance expressive performances and facilitate intricate sound design.
Now, let’s delve deeper into what makes the Leviasynth so remarkable.
The Engine Behind Leviasynth
Unlike traditional synthesizers that typically offer only two or three oscillators per voice, the Leviasynth pushes boundaries by providing eight oscillators. This allows musicians to explore a plethora of sounds, as ASM has incorporated over 300 waveshapes into its system, enabling the creation of particularly rich and immersive audio textures. The algorithmic engine invites users to experiment freely, allowing for unique combinations and structures that can yield everything from deep bass and soaring lead sounds to lush pads and evolving ambient soundscapes. Additionally, the synthesizer comes pre-loaded with 144 preset algorithms, and users have the ability to design and save custom algorithms tailored to their patches.
One particularly fascinating feature is algorithm morphing, which lets you select up to eight algorithms and smoothly transition between them. This capability encourages dynamic sound evolution over time, making it easier to craft intricate auditory experiences. Each oscillator supports several synthesis modes, including phase modulation, frequency modulation, pulse-width modulation, HTE Sync, along with three distinct types of phase distortion. The option to combine different synthesis modes within a single algorithm opens up new possibilities for sound design, providing a vast playground for creativity.
A Deep Dive into Filtering
The output from the algorithms feeds into dual filter stages. The first stage incorporates ASM’s Hydrasynth digital filter, offering an impressive array of 18 different types and modes, from standard low-pass and high-pass filters to more exotic options like the vocal formant filter. The second stage features a new pure analog 4-pole resonant filter equipped with custom-built pre-drive saturation and intense self-oscillation capabilities. This hybrid signal path beautifully balances the precision of digital technology with the warmth of analog sound.
Comprehensive Sound Shaping Tools
Sound shaping is further enhanced through a robust 32-slot modulation matrix, which includes 170 modulation sources and over 290 internal destinations. This extensive framework is complemented by an array of onboard effects inspired by ASM’s Hydrasynth. Additionally, a built-in three-track sequencer features two note tracks and one dedicated parameter-automation track, alongside an arpeggiator that includes an Entropy function, introducing real-time variations in patterns. Users even have the option to generate arpeggiator patterns directly from their sequencer data, adding another layer of creativity.
To see the Leviasynth's incredible features in action, be sure to check out ASM’s demo video here.
Leviasynth Keyboard
The keyboard version combines the Leviasynth engine with a 61-note Polytouch polyphonic aftertouch keybed, allowing each key to respond independently to pressure, thus enhancing expression and control during play. It also includes a four-octave ribbon controller that offers multiple operating modes, expanding real-time control options for pitch bending, modulation, and custom assignments. This model comes pre-loaded with 512 Single-mode patches and 256 Multi-mode patches, alongside a full-color touchscreen that provides dedicated controls for both sound design and live performance.
Leviasynth Desktop
For those preferring a more compact design, the desktop model retains the complete Leviasynth engine in a streamlined tabletop format, featuring 16 Polytouch polyphonic aftertouch pads, which also support step sequencing mode. With VESA and 19-inch rack mounting options, this version is perfect for studio setups that utilize an external keyboard or controller. Like its keyboard counterpart, it includes the same number of patches—512 Single-mode and 256 Multi-mode patches—and boasts a full-color touchscreen interface.
Both models are supported by ASM’s Patch Manager software, available for macOS and Windows, which facilitates firmware updates, patch organization, backup, and restoration. The Leviasynth Keyboard and Desktop are anticipated to begin shipping in February 2026. For further details, visit ashunsoundmachines.com.
