Oberheim OB-X

Oberheim OB-X Image

The first of the OB series Oberheim synths, this is a classic analog synthesizer available in 4, 6 or 8 voice configurations. It featured a 2 pole VCF lowpass filter with its own ADSR, a VCA with ADSR, a flexible LFO section, polyphonic sample and hold, polyphonic portamento and 32 patches of memory. Although it has been over-shadowed by the bigger and more popular OB-Xa and OB-8 synths which offer more flexible programming, the OB-X still holds its own. Capable of lush analog synth sounds comparable to the Sequential Prophet 5 but at a reasonable price. The OB-X also gives you Polymod functionality, something that the OB-Xa and OB-8 do not have.

Oberheim OB-X Image

This synth is definitely worth checking out. It has been used by Herbie Hancock, Chick Corea, Cirrus, Depeche Mode, Queen, Supertramp, Kenny Kirkland, Jean-Michel Jarre, Japan, Tangerine Dream, Rush, Simple Minds, Chicago, Styx, Ultravox and dozens more!

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36 Visitor comments
February 13, 2013 @ 5:33 pm
Very thick, warm and organic, and much better sounding than any of the Matrix series in my ears. I've had a 8 voice since 1993, and for me, it is the perfect companion to the velvet smooth Roland Jupiter 8.
November 6, 2012 @ 11:47 am
Found an amazing A:B comparison to a software synth (OP-X PRO-II):
July 2, 2012 @ 11:47 pm
All of you should listen to those amazing argentinian musicians, keyboardist is using the OBX:
Malcolm Jeffery
November 16, 2011 @ 8:43 am
I have a 6 voice one of these, its had its 12db filter replaced with a 24db self resonating filter which expands the sonics a little more, certainly these are the fatest warmest beasts ive ever heard, capable of earthreal pads,soup thick pads and general wobbly organic goodness and some very unusal x mod metallic osc sync mayhem.
Needs to be mended though as poorly at the moment, o yes and unison with slow filter open is huge beyond beleif.
July 19, 2011 @ 3:12 pm
more OB-X stuff:
http://www.youtube.com/watch?v=3 7YqrJIeZAw

enjoy ;)
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  • The link above will take you to an eBay search for this synth to see active listings. If you don't find it there, try looking in our forum marketplace or post a wanted classified.
  • Specifications
  • Polyphony - 4, 6 or 8 voices
  • Oscillators - 2 VCO's per voice (sawtooth or pulse)
  • LFO - 1 LFO
  • Filter - 2 Pole lowpass with ADSR envelope
  • VCA - 1 ADSR VCA envelope
  • Keyboard - 61 note
  • Memory - 32 patches
  • Control - CV / Gate on voice 1 only
  • Date Produced - 1979
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