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Oberheim Xpander

Six-voice analog synthesizer module with matrix modulation

The Oberheim Xpander, introduced in 1984, is a six-voice rack-format analog synthesizer module and the architectural sibling of the Matrix-12. Each voice offers two oscillators, fifteen filter modes, five LFOs, five DADSR envelopes, ramp and tracking generators, and a flexible modulation matrix, making it a benchmark of analog synthesis flexibility in a keyboardless module.

Sources

Category

  • Technical line drawing of Synthesizers

    Synthesizers

    Hardware synthesizers, synth model families, and related electronic instruments.

Made by

  • Oberheim

    Oberheim is an American synthesizer maker founded by Tom Oberheim in 1969, known for the SEM, the OB-X family of polyphonic synthesizers, and the DMX drum machine.

Part of family

  • 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.

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