ok so im on the lookout for a new 909 after selling my old one last year...

after a bit of pokin' about i found out that the 1st version of the EPROM used in the 909 is dodgy MIDI wise - hold down TRACK1 on your 909 and then Power it on and find out what Version you have..i think there were 4 software/eprom versions, i could be well wrong.

also there are supposed to be differences with the sounds on various machines depending on the Serial number...obviously a few touch ups within the 1 year of it's production, i wonder how noticeable?

cheers
:)