Most famous dx7 patches
The TX816 had eight DX7s in a rack mount, with individual MIDI ports and balanced outputs for each module. These included the DX7-IID, DX7-S and DX7-IIFD, which included a built in floppy drive and the TX802 which was a DX7-II in a rack with 8 outputs. Yamaha fixed all the midi problems and continued to make improvements with the updated DX7-II models that were released throughout the 80's. It was released the same year as the MIDI spec and as a result has incomplete support for the standard: It only transmits information on MIDI channel 1, has no OMNI support for sending and receiving on all midi channels and will not send velocity data beyond value 100.
The original DX7 was also one of the first synthesizers to have MIDI (musical instrument digital interface) included. The DX is widely known for it's great rhodes electric pianos, bells, killer synth basses (the "lately bass" being especially popular) and metalic type synth sounds. It's digital FM synthesis was able to create a wide range of new sounds that you just were not able to produce on a analog synth.
Of course, besides the affordable price, what made it so popular were the sounds that you could produce on one. And boy was it every successful! Every keyboard player from guys playing in their garage to the biggest names in the music business bought one and before it was discontinued in the late 80's, the DX became one of the biggest selling synths of all time. The DX was the first commercially successful digital synths. Until the DX7 burst on the music scene, most synthesizers were all analog based. Released by Yamaha in 1983, the DX7 is another one of those landmark synthesizers in the history of electronic instruments.