The most comprehensive online source for vintage DX7 patches is arguably the Bobby Blues website. This massive digital library includes the entire set of voices from the 600 Voices for the DX7 book, meticulously compiled and made available for direct download in .syx format. You can find the collection here: http://bobbyblues.recup.ch/yamaha_dx7/dx7_patches.html .

This difficult programming experience created a robust market for third-party resources—sound cartridges, sysex libraries, and, most importantly, printed patch books. And chief among these was the Amsco Publications title, 600 Voices for the DX7 , a work so comprehensive it was soon recognized as the de facto standard for FM patch programming.

Are you using or a software plugin (like Dexed or Arturia)? What specific genre of music are you producing?