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Synth by discoDSP

Free Product

OB-Xd is based on the Oberheim OB-X. It attempts to recreate its sound and behavior, but as the original was very limited in some important ways a number of things were added or altered to the original design.

The OB-Xd was designed to sound as good and as rich as the original. It implements micro random detuning which is a big part of that sound. However, it was not designed as a self-contained completely independent soft-synth. It needs to be contained within a VST framework where things like transposition, automation, layering, arpeggiation, etc., are available.

Also, like many synths of the OB-X's generation, the OB-Xd has no internal effects so its sounds and textures can be greatly enhanced by the use of additional processing like chorus, reverb, delay, etc.


  • Continuous blendable multimode filter
  • HP-Notch filter
  • HP in 12 dB filter mode
  • 4-1 pole in 24 dB filter mode
  • 32 and 64 bit versions included

System Requirements


  • OSX 10.6 or higher
  • 2 GB RAM
  • Core i3 or better processor
  • VST2/AU host


  • Windows XP or higher.
  • 2 GB RAM.
  • Core i3 or better processor.
  • VST2 host for Windows and Linux