The DX9 (list $1395) has the same superb FM digital sound genera tion capability as the DX7, but with 4 operators and a choice of 8 algorithms.

The DX9 has a 16-note poly phonic keyboard and is supplied with 420 pre-programmed voices on an external data cassette tape. Newly programmed voices can be saved on cassette tape to build up a personal voice library.

Of course, the DX9 more economical than the DX7, making FM digital synthesis available to a broad spectrum of keyboard enthusiasts.