Roland TR-909
| TR-909 | |
|---|---|
TR-909 front panel | |
| Manufacturer | Roland |
| Dates | 1983–1985 |
| Price | $1,195 USD £999 GBP ¥189,000 JPY |
| Technical specifications | |
| Polyphony | 11 voices |
| Timbrality | Monophonic |
| Oscillator | 4 |
| LFO | 9 |
| Synthesis type | Analog subtractive and digital sample-based subtractive |
| Filter | 34/25db resonant lowpass filter |
| Aftertouch expression | No |
| Velocity expression | Yes |
| Storage memory | 1232 patterns, 23 songs |
| Effects | Individual level, tuning, attack, decay, and tone controls for some sounds |
| Input/output | |
| Keyboard | 16 pattern keys |
| External control | MIDI in/out & DIN sync in |
| Audio sample | 19 |
The Roland TR-909 Rhythm Composer, commonly known as the 909, is a drum machine introduced by Roland Corporation in 1983, succeeding the TR-808. It was the first Roland drum machine to use samples for some sounds, and the first with MIDI functionality, allowing it to synchronize with other devices. Though the 909 was a commercial failure, it influenced the development of electronic dance music genres such as techno, house and acid house.