DX9 is a 16-voice polyphonic synthesizer based on digital 4-operator FM synthesis. There’s no filter section. VCA features an ADSR envelope. Memory provides with 20 patches.
DX9 was released in 1983 – same year DX7 hit the market. Back then it was launched as a cheap alternative to DX7. The unit featured all the issues DX7 had regarding prommability. The MIDI implementation was still limited as well.
Anyway DX series didn’t have unsuccessful models in it offering quality products capable of amusing digital sounds.
Today DX9 is not an option or solution it was developed to be. DX7 price doesn’t seem to bite so there’s no need in buying DX9. DX100 is worth opting for owing to its peculiar bass sound – a textured daring voice of house music, but DX9 offers a similar set of sounds DX7 does.
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.