DX7II FD/D

TheYamaha DX7is asynthesizerintroduced byYamaha Corporationin 1983. It was the first successfuldigital synthesizerand is one of the best-selling synthesizers in history, selling more than 200,000 units. In the early 1980s, the synthesizer market was dominated byanalog synthesizers.Frequency modulation synthesis, a means of generating sounds viafrequency modulation(FM), was developed byJohn ChowningatStanford University, California. FM synthesis created brighter, glassier sounds, and could better imitate acoustic sounds such as brass and bells. Yamaha licensed the technology to create the DX7, combining it withvery-large-scale integrationchips to lower manufacturing costs.