SEM
| Manufacturer | Oberheim |
| Function | Synthesizer (Synthesizer Expander Module) |
| Produced | 1974 - 1979 |
| Model ID | CPS-1 |
| Form Factor | Tabletop |
| Signal Path | Analog Hardware |
| Polyphony | Monophonic |
| LFO | triangle wave only |
| Oscillators | 2 VCO's (each with sawtooth or variable-pulse waveforms) |
| Filter | 2-pole multimode (low-pass, hi-pass, band-pass, notch) VCF with ADS (Attack, Decay and Sustain) generator |
| VCA | ADS |
| Control | CV / Gate |
| Links | Vintage Synth Page |
| Notes | To be used as a backup synth connected to a sequencer for layering or beefing up your existing monophonic analog synths. |