via this Reverb listing
"The Studio Electronics Obie Rack is a rare, custom 19-inch rackmount unit containing two vintage Oberheim SEM (Synthesizer Expander Module) units combined with a custom MIDI interface by Studio Electronics.
Key Features
Core Sound: Houses two original 1978 Oberheim SEM analog synth modules for classic, warm analog tones.
MIDI Integration: Upgraded by Studio Electronics with MIDI control (including velocity/dynamics, modulation, and aftertouch).
Front Panel Controls: Includes adjustments for octave range, multi-trigger, MIDI channel, pitch bend, LFO, glide, and volume.
Rear Panel Connections: Features MIDI In/Out/Thru, standard unbalanced mono audio outputs, and an IEC power socket.
Rarity: Estimated at roughly 100 units ever built/modified by Studio Electronics."

































