Vintage Yamaha DX-9 keyboard manuals

The Yamaha DX9 is a spin off synthesizer of the family of the DX7 built by Yamaha. It uses FM synthesis and has 16 note polyphony; however, it only has four FM operators for sound generation compared with six on the DX7. It is the least complex of the DX range of synthesizers and has only 20 on board memory locations. Yamaha DX9ManufacturerYamahaDates1983 Price $1395 USTechnical specificationsPolyphony16 notesTimbralitymonotimbralOscillator4 (Sine), 8 algorithmsLFO1 Saw Up, Saw Down, Sine, Square, Triangle, Delay, Key Sync Sample & HoldSynthesis typeDigital FMFilterNoneStorage memory20-Voice internal memoryInput/outputKeyboard61 non-weighted keysLeft-hand controlModulation wheel, pitch wheelExternal controlBreath controller, MIDI in, out, thru,Footswitch (portamento and sustain), Foot controller (volume