Oberheim DSX

Oberheim DSX Image

In the early 1980's Oberheim unveiled a new (pre-MIDI) proprietary system called the Oberheim Parallel Buss. This was a system in which several newly released pieces of Oberheim gear could be easily connected and synchronized. These included the lush OB-8 eight voice synth, the DMX drum machine, and the DSX Digital Polyphonic Sequencer. The DSX can interface directly with other Oberheim synths as well, including the OB-Xa, OB-SX, and OB-X. The DSX can synchronize to the DMX, or it can control the OB-synths. In addition to controlling these synths, the DSX features 8 CV and Gate outputs to control up to 8 more other analog synthesizers!

Oberheim DSX Image

For an analog synth player, the DSX adds an incredible amount of sequencing power never really seen on other analog synths' built-in sequencers of the time. The DSX records in realtime the notes and patch changes you create while playing your OB-synth. It can hold up to 6,000 notes! The DSX can store up to 10 different sequences/songs. Each sequence can have 10 polyphonic tracks for multiple OB-synths and DMXs. Patch info including splits and doubles can be stored too. Quantizing, looping, editing, transposing, and sequence merging are a few more features. If you've got any of these classic (pre-MIDI) Oberheim analog OB-synths lying around, the DSX is an easy way to directly control them in a classic way, and without any need for MIDI retro-fits or interfaces.

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8 Visitor comments
Cristopher Rodriguez
June 28, 2012 @ 1:49 pm
You cannot record a sequence without an Oberheim equipped with the computer interface cable.
dj not a dj
December 8, 2011 @ 2:20 pm
hi, if i dont have an oberheim synth, can i still record onto the dsx ?
How do i track the notes i want the dsx to play without an oberheim.
New Alliance East
May 10, 2011 @ 10:52 pm
Highly UNDER RATED!! no other sequencer gives you 8(!!) CV/Gate outs and poly capabilities.
I have mine rigged to run so that the mono synths all have their own dedicated tracks and the poly is routed back to the OB-8 which has midi. It passes the poly info out the midi jack as well!!! i can control anything with the DSX. i love setting up a sequence and just porting the midi to various instruments to create pads, layers, and awesome polyphonie!
December 3, 2010 @ 9:32 am
In response to InfaRed: This does quantize indeed. Options are the usually: 1/2,1/4,1/6,1/8,1/12,1/16,1/24,1/32 and then there is a real time mode. Its PPQ is 96 i believe.
You will need and OBX (after serial 803600), OBXa, OB-SX or OB8 to use as a controller. Then connect CV and gate to and from your OB1.
Infa Red
September 29, 2010 @ 4:16 pm
Does anyone know if this thing quantizes your notes in the sequence ? If so, what are all its quantizing options ? And if not, does anyone know its PPQ resolution ?

Also, could it sequence notes/patterns, etc.. from my OB-1 ?
VSE Rating


User Rating

Rated 3.07 (92 Votes)

  • Check Price
  • 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.
  • Demos & Media
  • Manual - Download the original owner's manual from SoundProgramming.net.

  • Specifications
  • Polyphony - 10 polyphonic tracks per sequence
  • Sounds - None
  • Effects - None
  • Sequencer - 6,000 Note Capacity. 10 polyphonic tracks per sequence/song
  • Songs - 10 Sequences/Songs
  • VCA - None
  • Keyboard - None
  • Control - Oberheim Parallel Buss; 8 CV/Gate INs/OUTs
  • Date Produced - 1981
  • Resources & Credits
  • Images from

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