SBRK Zerua Nahasi: Polyphonic Granular Eurorack Synth
SBRK Devices Unveils Zerua Nahasi Granular Synthesizer for Eurorack
At Superbooth 2026, SBRK Devices has introduced the Zerua Nahasi, a new polyphonic granular synthesizer designed for the Eurorack modular format. This innovative module aims to function as a comprehensive granulation laboratory, offering a wide array of sound manipulation possibilities for electronic music producers. Moreover, it builds upon the company’s previous work, bringing advanced granular synthesis into a compact modular environment.
Advanced Granulation Capabilities
The Zerua Nahasi distinguishes itself with four independent stereo granular engines. These engines can operate either separately or in conjunction, thereby enabling a rich palette of sonic textures. Each slot within the module is capable of holding over 20 seconds of audio, providing ample room for extensive sample manipulation. Samples can be loaded conveniently from an SD card, or users can record audio directly via the stereo audio input. Furthermore, each granulation engine can utilize the same or different samples as source material, offering significant flexibility. For live performance scenarios, a dedicated ‘live mode’ transforms the device into a granular delay, extending its utility beyond traditional synthesis.
Deep Control and Integrated Effects
Control over the granulation process is highly detailed. Users can manipulate main granulation parameters such as grain position, grain length, density, pitch/speed, envelope shape, and stereo image. Significantly, all these parameters feature CV control, allowing for dynamic and evolving modulation within a modular setup. Randomization options are also available, which can introduce unpredictable and creative sonic variations. The module supports multiple granulation modes, including varispeed and stretching, with promises of more modes to be added via future firmware updates. Additionally, an onset/transient detection feature further refines the granularity of the processing. Beyond granulation, the Zerua Nahasi incorporates a stereo convolution reverb. This reverb comes with several built-in impulse responses, notably featuring iconic spaces from Barcelona. Crucially, it also supports loading custom impulse responses from an SD card, offering limitless spatial possibilities.
Features
- 4 stereo granular engines
- Each slot holds over 20 seconds of audio
- Engines can be synchronized and combined in multiple ways
- Main granulation parameters with CV control and randomization: grain position, grain length, density, pitch/speed, envelope shape, stereo image
- Multiple granulation modes: varispeed, stretching, and more to come
- Onset/transient detection
- Granulation sources: stereo input audio (live or pre-recorded), or samples from SD card
- Integrated stereo convolution reverb with built-in and custom IR loading
- Polyphonic operation
- Live mode for granular delay functionality
Technical Specifications and Conclusion
In terms of physical specifications, the Zerua Nahasi measures 30 HP in width and has a depth of 39 mm. Its power consumption is +12V: 230 mA and -12V: 230 mA. The module’s comprehensive feature set, including its polyphonic capabilities, four stereo engines, flexible audio input, and integrated convolution reverb, positions it as a powerful tool for experimental sound design and intricate textural creation within the Eurorack ecosystem. Therefore, it represents a significant addition for modular enthusiasts seeking advanced granular synthesis options.
👍 Pros
- ✓ Four independent stereo granular engines offer extensive sound design possibilities.
- ✓ Versatile audio input options (SD card samples, live input) and convolution reverb with custom IRs.
- ✓ Comprehensive CV control and randomization for deep modulation and evolving textures.
👎 Cons
- ✗ Eurorack format requires existing modular setup and investment.
- ✗ Requires an SD card for sample loading and custom IRs (not included).
More info: SBRK Devices | Zerua Nahasi
