I've found that I need to give my computer's audio output an external boost of +6db or so in order to get a DMX to accept sequence dumps played back as wav files.  This is with the computer volume levels at maximum.  I think the cassette interfaces on the Xa and DMX are basically identical, so this may work for you.  A mixing board, clean guitar booster or some other non-distorting amplifier can be used.

-- Paul White

At 02:24 PM 4/23/09, you wrote:

Hello: I received a file from someone from this forum that was to contain the factory presents for the OBXA. My synth tech tried to load these into my obxa using the headphone line from his computer and said he had some signal/amplitude problems and couldn't load these into the OBXA. If anyone out these has loaded presets back into their OBXA (or OB-8 for that matter) using a computer compared to a tape cassette player, would you please kindly give me any advise on how to make sure the voices load into the Oberheim Thanks in advance for any help!