The DX7II is Yamaha’s answer to its own immensely successful DX7. The most successful synthesizer in history, the DX7 put high quality sounds into a user affordable package. This high quality/low cost combination was made possible by the use of FM synthesis. The DX7II’s sounds are produced in the same way, but with 6 operators and 32 algorithms. The DX7II will play the Original DX7 sounds, as well as the richer, more complex 6 operator sounds. It has a 16 note polyphonic output and single, dual and split keyboard modes. With the addition of the cost and quality which made the original DX7 such a great keyboard to the DX7II’s new features and better sounds, Yamaha may have created another classic.
Ÿ The Complete Yamaha DX7II Book — Paul Blankinship