The Yamaha DX9 is a digital programmable algorithm synthesizer that utilizes unique FM digital tone generation technology combined with microcomputer control. It features 20 internal voices and supports external storage via cassette tape containing up to 120 pre-programmed voices. The instrument allows users to edit existing voices or create entirely new ones through extensive programming controls.
| Internal Memory Voices | 20 voices |
|---|---|
| Keyboard Size | 61-key keyboard |
The DX9 has a 20-voice internal memory.
A setting of 12 permits pitch bend over a ±1200 cent (2 octave) range.