26. March 2026 | Hardware | Noizefield
Kaona Sisyphus: Firmware 2.0 Enhances Granular Filter

The Kaona Sisyphus, a distinctive Eurorack module that uniquely combines granular synthesis with multimode filtering, has received a significant update with the release of firmware 2.0. This update introduces a host of new features, most notably 14 additional granular patterns, further expanding the module’s sound design capabilities. Initially introduced by Kaona last year, the Sisyphus quickly garnered attention for its innovative approach to audio manipulation.
What is Kaona Sisyphus?
The Sisyphus module operates as a multimode granular filter, a concept that merges the intricate world of granular synthesis with the sonic sculpting power of traditional filtering. Granular synthesis involves breaking down an audio signal into tiny fragments, known as grains, which can then be manipulated in terms of size, density, position, and pitch. The Sisyphus takes this process a step further by integrating a high-quality multimode filter directly into the granular engine. This allows users to not only create complex textures and drones but also to shape their spectral content with low-pass, band-pass, and high-pass filtering. Furthermore, the module features two audio inputs, enabling both mono and stereo processing, which provides flexibility for various sound sources within a Eurorack setup. This combination makes it a potent tool for experimental sound design.
Firmware 2.0 Enhancements
The arrival of firmware 2.0 significantly enhances the Sisyphus’s versatility. The highlight of this update is the inclusion of 14 new granular patterns. These patterns fundamentally alter how the audio grains are processed and reassembled, opening up new avenues for rhythmic variations, evolving soundscapes, and unique textural effects. Consequently, producers can explore a broader spectrum of sonic possibilities, from subtle ambient shifts to aggressive, glitchy transformations. Moreover, the update ensures that the Sisyphus remains a cutting-edge instrument in the ever-evolving landscape of modular synthesis, offering users fresh creative tools and extended functionality. The continuous development through firmware updates underscores Kaona’s commitment to enhancing the user experience and product longevity.
Sound Design Potential
The Kaona Sisyphus excels in transforming incoming audio signals into something entirely new. For instance, a simple drum loop can be granulated and filtered to produce intricate rhythmic patterns or washed-out, ethereal textures. Similarly, sustained sounds can be stretched, warped, and re-pitched to create lush pads or unsettling drones. The module’s four CV inputs allow for extensive modulation of its parameters, enabling dynamic and evolving soundscapes that react to other modules in a Eurorack system. A dedicated clock input also ensures precise synchronization, which is crucial for integrating granular effects into rhythmic compositions. Therefore, the Sisyphus is an invaluable addition for electronic music producers seeking to push the boundaries of sound design and introduce unique sonic elements into their tracks.
Features
- Multimode granular filter
- Granular processor with variable grain size, density, position, and pitch
- High-quality multimode filter (low-pass, band-pass, high-pass)
- Two audio inputs (mono or stereo processing)
- Four CV inputs for modulation
- Clock input for synchronization
- Intuitive interface with dedicated controls
- Compact Eurorack format (12HP)
- Firmware 2.0 adds 14 new granular patterns
Price
299.00 €
👍 Pros
- ✓ Unique combination of granular synthesis and multimode filtering.
- ✓ Extensive sound design capabilities for textures, drones, and rhythmic effects.
- ✓ Firmware 2.0 adds significant new granular patterns, enhancing versatility.
👎 Cons
- ✗ Specialized functionality might require a learning curve for new users.
- ✗ Eurorack format requires an existing modular system.
More info: Kaona | Sisyphus
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