Oberheim DX 1983 Drum Machine with Stretch

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via this auction

via this seller: "This comes with 4 extra chips, and this has the factory DX chips in it. The stretch cost me $1000 alone! This only came with 6 sounds and I sent this back to the factory and they put the stretch on that expanded the 4 sounds added the 6 sounds to make it now 10 sounds, and also it added a Midi. This comes with a total of 10 chips. All 10 channels have sounds."

Also apparently the Soft Cymbal trigger button only works after hitting the Medium or Loud.