The Yamaha DX7 II Centennial is a limited edition digital synthesizer released in 1987 to commemorate the 100th anniversary of the Yamaha Corporation. It is a re-release of the original DX7 synthesizer, but with improved features such as a larger memory capacity, improved MIDI implementation, and a built-in sequencer.
DX7 is considered one of the most popular synthesizers created by Yamaha. A 16-voice polyphonic synthesizer offers a 16-bit digital 6-operator FM synthesis (6 operators per voice, 32 algorithms). The instrument is monotimbral. The keyboard features 61...
DX7S (S stands for single timbre) is one of the improved versions of DX7 featuring the increased internal patch memory, upgraded implementation of MIDI significantly improving it and enhanced the output sound fidelity. The original model featured 12-bit...
DX7 II D (D stands for dual timbres/outputs) was similar to DX7S with the addition of stereo outputs, bitimbrality and integrating a larger screen. The bitimbrality allows for using layer and split modes. Deep voices and juicy combinations could be...
DX7 II FD (FD stands for Floppy Drive). The version is equal to the DX7 II D with the addition of a floppy disk drive. The instrument offered 1MB of memory space which is identical to 40 RAM cartridges delivering thousands of voices and making fractional scaling, SysEx data available.