OB-X
| Manufacturer | Oberheim |
| Function | Synthesizer |
| Produced | 1979-1981 |
| Country | Oakland, CA, USA |
| Form Factor | Keyboard |
| Signal Path | Analog Hardware |
| Channels | 2, 6, or 8 Voice |
| Links | Manual at Internet Archive · Service Manual at Internet Archive · OB Series Review in Sound on Sound Sept 1998 |
| Notes | 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 |