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OP-X Free

Synth (Analogue / Subtractive) Plugin by SonicProjects
OP-X Free
OP-X Free by SonicProjects is a Virtual Instrument Audio Plugin for Windows. It functions as a VST Plugin.
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OP-X Free is a cut down preset version of OP-X offering a small set of selected original OP-X sounds for free use. OP-X Free has got the same basic engine as OP-X while only giving access to a few parameters on a cut-down user interface.

OP-X Free can't load any further OP-X patches and does not offer automation or MIDI remote control. However, it can be upgraded to OP-X Player, which contains the full OP-X patches library as well as automation and MIDI remote control.


  • A small set of selected original OP-X sounds.
  • Separate Voice Design (SVD).
  • Comprehensive detuning options.
  • Tunable: Oscillators, Filters, Envelopes, Portamento times.
  • Spread knob for unison and polyphonic mode.
  • SEM-Filter emulation.
  • Polyphonic portamento.
  • Individual voice pans.
  • Direct upgrade knob.
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