PG-8X Free Virtual Synthesizer

PG-8X Free Virtual Synthesizer

PG-8X is a free VST instrument plugin (synthesizer), inspired by the JX-8P. The GUI is modeled after the PG-800, which is the external editor for the JX-8P.

PG-8X is patch-compatible to the hardware, which means that JX-8P SysEx files are accepted.


  • up to 12 voice polyphony
  • Two DCO’s with Saw, Square, Pulse, Noise
  • Hard Sync and Ring Modulation
  • Two exponential envelop generators
  • 24 dB resonant LP filter
  • HP filter (3 stages)
  • Stereo Chorus
  • Import and Export of JX-8P Sysex data

Supported platforms & download

Windows | macOS

Martin Lüders