hi,
i had problems dumping patches to a Waldorf Microwave 1. it accepts a large dump of data, very fast but it is very picky about how it receives it (speed, rate, packet size??).
OSX 10.11, Mac Mini 2014, with Edirol UM-550 - didn't work with various settings applied to sysex librarian. Microwave reports 'Bulk midi Error'
OS9 G4 MDD and Unisyn 2.0 and the Steath serial card with a Studio 5LX - same problem. I tried various speeds, rates etc via adjusting settings in OMS as the Studio 5LX has various settings and it can also emulate midi time piece.
OS8.1 840AV Quadra and Unisyn 1.4 and a midiman 1in1out - it works every time, no hitches.
Is the 840AV serial midi just more reliable in this instance? Any opinions?