OB-Xf

OB‑Xf is an open‑source virtual analog synthesizer that recreates the sound and workflow of the classic Oberheim OB‑X. It runs as a VST3, AU, CLAP, or LV2 plugin and can be loaded in any compatible host on Windows, macOS, or Linux. The software provides a modernized code base and user interface while preserving the original instrument’s architecture and timbral characteristics.

The synthesizer is aimed at musicians, composers, and sound designers who need an authentic‑style analog synth within a digital audio workstation. Its compatibility with a range of plugin standards and operating systems makes it suitable for both studio production and live performance setups. Documentation is supplied through an online manual generated with Astro Starlight, and the project is actively maintained by the Surge Synth Team.

OB‑Xf is considered stable and includes the core features of the original OB‑Xd release, offering a reliable, cross‑platform tool for creating classic analog‑type sounds without proprietary licensing constraints.