RY20
| Manufacturer | Yamaha |
| Function | Drum Machine |
| Produced | 1994 |
| Country | Japan |
| Form Factor | Desktop |
| Signal Path | Digital Hardware (including Analog Connections) |
| Dimensions | 240 mm x 176 mm x 48 mm |
| Weight | 0.7 kg without batteries |
| Notes | Number of Pads: 12 Polyphony: 28 notes Preset Patterns: 50 User Patterns: 50 User Songs: 50 Preset Drumkits: 20 User Drumkits: 20 Tempo Range: 40 - 250 BPM ROM Size: 300 waveforms |