In addition to the Oberheim Serial Buss, the DSX has an 8-channel CV/Gate interface for sequencing traditional analog synthesizers.

The DSX is capable of storing and sequencing over 6,000 events, over 10 songs of 10 patterns each.

The DSX equipped with the Oberheim Serial Buss, a pre-MIDI proprietary parallel bus designed to directly interface the DSX with Oberheim's OB-Xa or OB-8 synthesizers along with their DMX drum machine.

Connection was via a heavy 1:1 cable, which plugged from the host DSX to the target synthesizer using a rear DB-37 connector.

The combination of the DSX, DMX and either OB-Xa or OB-8 were marketed by Oberheim as "The System".