DR-550 MKII DR-Rhythm
| Brand | Boss |
| Function | Drum Machine |
| Produced | 1992 |
| Form Factor | Desktop |
| Signal Path | Digital Hardware (including Analog Connections) |
| Weight | 510 g |
| Power | DC 9v (1.5V x 6 AA Batteries) |
| Channels | 91 Voice (Internal Sounds), 12 Voice (Voice Polyphony), 64 Track (Programmable Patterns), 64 Track (Preset Patterns) |
| Connections |
|
| Displays |
|
| Links | User Manual |
