Free Ensoniq EPS 16 Sampler Simulator by mardlib for macOS
Developer mardlib has released an open-source free Ensoniq EPS 16 sampler simulator for macOS, recreating the internal architecture of the legendary 1990 workstation. The project relies on MAME emulation core technology to deliver cycle-accurate hardware simulation rather than simple algorithmic DSP modeling. You can compile or grab the latest build directly from the developer's GitHub repository.
Hardware-Accurate EPS-16+ Emulation
Unlike standard virtual instruments that approximate vintage filter sweeps and sample degradation, this software simulates the original hardware CPU and sound-generating circuitry. Because it operates as a true simulator, users must provide their own legitimate Ensoniq EPS-16+ OS and ROM image files, which are not distributed alongside the application for legal reasons.
Once loaded, the software behaves identically to the 16-bit rack or keyboard unit, including the distinctive variable sample rates ranging between 11.2 kHz and 44.6 kHz. The simulator gives producers access to the characterful converters that defined early 1990s boom-bap and electronic music.
Features and Specifications
The Ensoniq EPS-16+ sampler simulator preserves the original feature set and signal path of the vintage unit:
- 16-bit hardware-level emulation based on MAME core architecture
- Variable sample rates between 11.2 kHz and 44.6 kHz
- Dual multimode non-resonant digital filters with selectable 6 dB to 24 dB slopes
- Multi-waveform LFO and extensive modulation routings
- Integrated effects processor covering reverb, chorus, delay, phasing, and distortion
- Complete sample editing toolkit with auto-looping, splice, merge, and normalisation
- Authentic resampling functionality with active effect processing
- Open-source codebase released without licensing fees
Compatibility and Availability
The standalone simulator currently runs on macOS. A dedicated VST3 plugin version is actively under development in the developer's repository, which will bring the workflow straight into modern digital audio workstations. No account registration or product activation is needed.
To explore the vintage workflow today, download the project files directly from the Ensoniq EPS-16+ GitHub repository.
The mardlib Ensoniq EPS-16+ simulator is completely free and open source for macOS users. You only need to supply your own ROM files to access full vintage sampler functionality.
Download your copy from GitHub and experience classic 90s sampling on your Mac.
FAQ
Is the Ensoniq EPS-16+ simulator really free?
The software is entirely free and open source under a public GitHub repository.
Does the download include the Ensoniq factory ROMs?
Hardware ROMs are not included due to copyright restrictions, requiring users to supply their own valid system files.
What operating systems are currently supported?
The simulator is currently available exclusively for macOS, with a VST3 plugin edition in development.