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 |
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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.
The 909 was a commercial failure, as users preferred the more realistic sounds of competing products such as the LinnDrum. Roland ceased production after one year, having built 10,000 units. The 909 influenced the development of electronic dance music genres such as techno, house and acid house.