I would highly recommend replacing the ancient 2708 ROMs with a single 2732 as I did on my OB-X -

http://www.retrosynth.com/docs/obx/rom_hack/

Doug
synthparts.com

--- In oberheim@yahoogroups.com , "rob" <robiecurrier@...> wrote:
>
> Does anybody have the .BIN or .HEX files for an OBX I'm specifically looking for version JA0. If anybody has any though, I'd really appreciate it. Thanks!
> -Rob
>