OP-X PRO-3 is a 12-voice semi-modular virtual analog synthesizer that builds upon the legacy of its predecessor, OP-X PRO-II, by incorporating all its sounds and features along with numerous user-driven enhancements. Designed to emulate the classic analog synths of the late 70s and 80s, it captures the sonic essence of iconic instruments like the OB-X, Matrix-12, Jupiter-8, Prophet-5, and Minimoog. Its extensive functionality and flexible architecture enable musicians to explore a vast palette of vintage tones with modern precision.

The synth offers independent voices on tunable voice boards, a logically structured interface, and enhanced audio quality that retains the sought-after analog character. Featuring multiple filter types with smooth morphing, several envelopes and LFOs, and a comprehensive modulation matrix, it provides deep control over sound design. Additional tools like reverb, delay, modulation effects, an arpeggiator, and a patch browser with extensive preset libraries further expand creative possibilities. OP-X PRO-3 also includes advanced features such as MIDI learn with multiple destinations, flexible pitchbend and modwheel settings, and a GUI with customizable size and skins.

Faithful to real voltage-controlled polyphonic analog synthesizers, OP-X PRO-3 accurately recreates their inner workings, including voice board tuning and autotune functions that manage pitch stability and detuning effects. This attention to detail allows seamless blending between tuned and detuned states and offers the unique ability to save individual base tuning settings per patch. The synth is available in several versions that balance CPU usage and feature sets, ensuring compatibility with OP-X PRO-II presets and offering users a range of options to suit their workflow and system capabilities.