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 has no filters of any kind and relies entirely on FM sound generation.
This synthesizer could load patches from cassette. It has separate pitch and modulation wheels and has a breath controller input.
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
This keyboard is MIDI-enabled.
MIDI Connections: Standard 5-Pin MIDI in, out, and thru connections.