Oberheim DMX Stretch / DXa

Programmable sample-based drum machine with battery-backed memory, 24 sounds, 8 direct voice outputs, stereo and mono mix outputs, cassette interface, sync-to-tape, external clock, and per-voice trigger/CV connectors.

Vintage digital drum machine with 6 voices, sampled percussion, MIDI I/O, tape sync, external clock, trigger input, and footswitch control.

Rackmount 1U analog polyphonic synthesizer sound module with 6 voices, 1000 presets, monophonic audio output and full MIDI control.

1983 eight-voice analog polyphonic synthesizer with split/double modes, arpeggiator, cassette storage, and a proprietary parallel computer interface; original units did not ship with MIDI, though retrofit MIDI was offered later.

61-key polyphonic analog synthesizer with 32-patch memory, cassette-interface patch storage, and rear-panel CV/gate plus pedal I/O.

Programmable pre-MIDI analog polyphonic synthesizer with left/right/mono audio outputs, cassette storage I/O, three footswitch inputs, two expression pedal inputs, and a proprietary 37-pin computer interface.