Mercury-4 is an authentic software recreation of the iconic Roland Jupiter-4 synthesizer from the late 1970s, known for its distinctive sound and unique character. This rare polyphonic synth became a hallmark of 80's new wave music, used by artists like The Cars, Duran Duran, and The Human League. The Mercury-4 captures every nuance of the original instrument, including its bold analog oscillators, powerful dual filters, and the famous stereo chorus effect, delivering the raw, aggressive tone that made the Jupiter-4 legendary.

Enhancing the original design, Mercury-4 expands the polyphony to 16 voices and includes modern features such as infinite patch storage, velocity sensitivity, and comprehensive MPE support. It also introduces a modeled version of the classic Roland Space Echo tape delay, providing warm, organic echo effects with multiple reverb modes. The software faithfully replicates the Jupiter-4’s arpeggiator and unison modes while adding a Drift control to inject vintage analog character, making it a powerful tool for musicians and producers seeking classic synth tones with contemporary flexibility.

With over 400 expertly crafted presets, including the original factory sounds and contributions from renowned sound designers, Mercury-4 offers a vast palette of sonic possibilities. The user interface is designed for efficiency, featuring an improved preset browser, single-click favorites, and support for importing complete preset libraries. Compatible with major plugin formats and available as standalone software, Mercury-4 combines authentic vintage sound with modern performance and workflow enhancements, making it an essential instrument for creating rich, textured synth sounds.