There isn't one that I am aware of.

Your best bet is to go to the manufacturers' websites and see if they make the device User Guide available.

Thanks for your response.
Ah well Ensoniq is no more. They were absorbed in 1998 by Emu/Creative - and I don't know whether the Emu part of that company is still alive.

Which begs a wider question regarding the preservation of midi related data and documentation. Seems strange that the most informative books and articles on MIDi are all from the 1980s. And sadly some of those authors have passed on - i was shocked to discover that Martin Russ who wrote for UK Sound on Sound magazine for years passed earlier this year.

So are there any initiatives to archive this sort of documentation? I guess not. And yet surely Long live Midi whether 1.0 or 2.0 is surely helped if a broad range of tech documentation is preserved centrally.

Thanks

Try this: https://github.com/jazz-soft/JZZ-midi-Gear
And please feel free to update it if you have some missing data.

You may be able to find archived versions of the old websites on archive.org Sometimes I find things there that have long since left the "normal" Internet

Thanks - good suggestions