Gotta love those DX's! Purchased my DX7II with an E! board in the late 80's and still use it everyday. Lots to be said about hardware synths versus today's VSTi's. Other than an occasional battery replacement those hardware synths hardly ever die. Mine's taking me from floppy drives to internet downloads, from Windows 3.0 to Win 10...soft synths can't do that!
It will convert all of the DX series sysex to FM8. Many of the DX sounds are available on line for free. I have a ton of them to convert. They all sound great to this non-DX owner.
I recently bought the V collection from Arturia. Included is a perfect sounding DX7 - now as a soft synth. And much, much easier to program than the original.