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OP-X PRO-II out!      Click here!
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OP-X Blue Reaktor 5     

OP-X Blue VST PC       

Gary Corbett: „This is the best virtual synth I have ever heard"



Luke Mourinet: „It's without a doubt the best OB-X emulation to date“

Mariano Saulino: „The OP-X has became my #1 analog axe for every project“


Welcome to the Sonicprojects OP-X home!   news

On this site you will get to know the sonicprojects sensational remake of the legendary OB-X for VST and Reaktor. A real device was used for endless tunings and comparisons to get as close as possible. The result sounds nothing short of fantastic.

The secret of analog behaviour

Separate Voice Design (SVD)

OB-X Voiceboards

Various methods have been used in the plugins world to copy analog behaviour. SonicProjects has made a new and different approach. By extensive exploring of the real device it became obvious that a big part of the organic feeling comes from the minor differences in sound between the voices. This has nothing to to with random behaviour but with device tolerances and slightly different trimpot settings. SonicProjects has implemented this behaviour into the virtual device. Each voice is a separate mono synth with independent signal path and comprehensive global tuning options. learn more

The real mighty OB-X     show

The OB-X saw the light of earth in 1979 and was the first fully programmable polyphonic synth built by Tom Oberheim. It's the direct successor to the famous SEM based units. The secret of the OB-X is that it still has the old discrete 12db SEM-filters. All later units such as OB-Xa, OB8 and Matrix as well as many competing products made the use of the more sterile Curtis filterchips. This fact makes the OB-X one of the best sounding polyphonic synths of all time. Experts put the OB-X in the same league as the Memorymoog. We love this synth!!


Enhanced GUIs out

In cooperation with the 3d specialist Reuben Flounders from the graphical user interfaces (GUIs) have been overworked.

Have a look at the tremendous 3D model of the OP-X realized by Reuben Flounders. The model was directly derived from the VSTi, no hardware model was used for it.

Visit his site with a gallery of astonishing 3d models:

The website has been updated to show the new guis.
Entrance site design by Reuben Flounders.

3d model by Reuben Flounders - click to enlarge

The available formats

The OP-X is available as VST Plugin for PC and as Reaktor Ensemble for Reaktor5 Mac and PC. Both versions support automation and midi remote control.

Go to the detailed description >>

Minimal System Requirements:

Pentium III 1 GHz, Mac G4 1,0 GHz
384 MB Ram

VST host (PC), Reaktor5 (Mac/PC)

Get the demo!  new!

download manual

enter user area


OP-X Blue VST            Click to enlarge

OP-X VST Surface - Beautiful and intuitive