| Brand | Octave Electronics |
|---|---|
| Number of Keys | 37 |
| Type | Keyboard Synthesizer |
| Type of Keys | Synth |
| Analog/Digital | Analog |
| Model | CAT SRM |
Check the listing for details. Octave Electronics CAT SRM Synthesizer - VINTAGE - 1970s. Condition: Used. Listed at 1799.99 USD. The Octave Cat SRM (Series Revision Model) is a duophonic analog subtractive synthesizer released in 1977 by Octave Electronics. It was designed by Carmine Bonanno and is famous for its aggressive 24dB low-pass filter and extensive cross-modulation capabilities, which allowed it to compete with more expensive synthesizers like the ARP Odyssey and the Moog Minimoog.