I encountered another problem with the AT5 that I would like to be sure won't happen with the 300/500.
when you download midi song info from the mixer to the sd card will it record the system track "a" 1-16 as well as "b" multi track 1-16? When I tried this on my AT 5 it ignored the system track "a" data and only recorded "b" 1-16. I want to be sure this is not a problem on the 300 or 500 before I purchase.
thanks for the continuing help.