Oberheim SEM Patch Panel SN 0846

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via this Reverb listing

"This is the 2007 reissue of the Oberheim SEM (Synthesizer Expander Module) with the Patch Panel edition, hand-crafted under the direction of Tom Oberheim himself. A faithful recreation of the original 1974 SEM, this version adds extensive CV patching capabilities, making it perfect for integration into modern modular and analog setups.

- Classic discrete analog circuitry with the unmistakable SEM tone

- Beautifully musical multimode filter (lowpass, bandpass, highpass, notch)

- Fully patchable: CV/Gate control over every major function

- Designed for modular systems, Eurorack expansion, or standalone use

- Compact, rugged metal housing with vintage aesthetics

This SEM is a favorite for its warm, punchy sound, effortless musicality, and the ability to serve as either a raw tone source or a characterful processor. Perfect for analog purists, modular enthusiasts, or collectors of classic synth gear.

This unit is practically new, never used, in its original box.

I have another identical SEM, also never used, but it's not in its original box. Enquire if you want two of them."