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 OP-X by SonicProjects is a Virtual Instrument Audio Plugin. It functions as a VST Plugin.
Product OP-X
Developer SonicProjects
Price (MSRP) $99
Type / Tags
Plug-in, App & Soundware Format(s)
Operating System Availability
Download Released
 2.1  Downloads Released

OP-X is a virtual recreation of the legendary Oberheim OB-X. It is available in VSTi (Windows) and Reaktor ensemble (Windows & Mac OS X) versions.

The VST version features separate signal paths for each of the six voices, with slight differences in sound - the oscillators, filters, envelopes and portamento times differ from voice to voice and can be tuned individually with four global buttons.


  • Comprehensive detuning options.
  • Tuning options for: oscillators / filters / envelopes.
  • Tuning option for portamento times.
  • 12db SEM-filter emulation.
  • Unisono, polyphonic portamento.
  • Sync, x-mod, ring modulation, noise, s/h.
  • Filter-envelope modulation.
  • Sine wave frequency modulation.
  • Arpeggiator/sequencer.
  • Individual voice pans.
  • Switchable off keyboard and lever animation show.
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Average user rating of 9.67 from 3 reviews

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