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Oberheim Electronics (Wikipedia)

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  • Oberheim SEM

    Synthesizer · United States

    The Oberheim SEM (Synthesizer Expander Module), introduced in 1974, was Oberheim's first product: a compact semi-modular single-voice analog synthesizer module with two VCOs and a distinctive two-pole multimode voltage-controlled filter offering low-pass, high-pass, band-pass, and notch responses. Stacked SEMs formed the basis of the Two Voice, Four Voice, and Eight Voice instruments, and its filter character was later revived in the OB-X8.

  • Oberheim Matrix-12

    Synthesizer · United States

    The Oberheim Matrix-12, introduced in 1985, is a twelve-voice analog synthesizer with extensive digital modulation routing. Each voice provides two oscillators, a noise source, a fifteen-mode multimode filter, five envelopes, five LFOs, ramp and tracking generators, and a deep modulation matrix, on a 61-note keyboard. It is widely regarded as one of the most powerful analog polysynths ever built.

  • Oberheim Matrix Series

    Synthesizer · United States

    The Oberheim Matrix family comprises the analog synthesizers built around extensive matrix modulation and Curtis-based voice cards introduced in the mid-1980s, including the rack-format Xpander and the flagship 12-voice Matrix-12, along with the later Matrix-6 and Matrix-1000. These instruments paired analog signal paths with deep digital modulation routing.