This is the latest official released operation systems by Oberheim for DMX. This operation system update/upgrade requires two eprom chips.

After purchase, please state your desired Set depending on your current DMX revision.

Check installed software version:

Press [3], [5] and [7] simultaneously.

Info about latest OS revisions:

·         2.21 – Latest OS for the [Basic units].

·         3.20 – Latest OS for units with [Memory expansion installed].

·         4.01 – Latest units with [Factory midi].

Features/improvements for 3.20:

·         Improved – New cassette routine to improve cassette interface reliability.

·         Improved – uniform operation, ability to change quantization, swing ..etc. on the fly.

·         Added – Options to personalize user control.