| Short name | Description | Year | Manufacturer | Runnable | Parent |
|---|---|---|---|---|---|
| k1 | K1 Digital Multi-Dimensional Synthesizer | 1988 | Kawai Musical Instrument Manufacturing | Yes | |
| k1m | K1m Digital Multi-Dimensional Synthesizer Module | 1988 | Kawai Musical Instrument Manufacturing | Yes | k1 |
| k1r | K1r Digital Multi-Dimensional Synthesizer Module | 1988 | Kawai Musical Instrument Manufacturing | Yes | k1 |
| k1rii | K1rII Digital Multi-Dimensional Synthesizer Module | 1989 | Kawai Musical Instrument Manufacturing | Yes |