The DX9 is a 4-operator 8-algorithm FM synthesizer issued as a less expensive alternative to the DX7 which was released at about the same time.
It was released before the second generation of 4-operator FM synthesizers, the DX21, DX27, and DX100 and is not patch-compatible with any of them.
Year Released: 1983
Keyboard: 61 keys
Polyphony: 16 notes
User Patches: 20
Power Consumption: 35 watts
Dimensions: 1018 mm x 329 mm x 102 mm
Weight: 12.4 kg
User Demo Videos
Yamaha DX9 Manual
Yamaha DX7 and DX9 Service Manual
Items for Sale on Reverb
Yamaha DX-9 Synthesizer Original Jack Board ($19.99)