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E-MU 25 Modular Analog Synthesizer

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    The E-MU 25 was a precursor to E-MU’s Modular systems, featuring about twenty modules behind a single front panel, including 3 VCO's, 2VCF's, 2VCA's and two envelope generators. Unlike the “bulletproof” all-aluminum standards of the Modular systems, the E-MU 25 used cheap slide pots and plastic switches, and even sported a "vacuum cleaner" power switch! Only two units were produced; they were identical on the outside, but had completely different circuitry inside because the circuitry was evolving so quickly.
    Type: Analog
    Synthesis: Subtractive
    Oscillators: 3
    Waveforms: Pulse Variable, Square, White Noise
    Osc Modulation: Envelope, Keyboard, Knob, LFO, Oscillator
    Envelopes: 2
    Evelope Paramerters: Attack, Decay, Sustain, Release
    Filters: 2
    Types: 24dB Slope (4-pole), Resonance
    Filter Modulation: Envelope, Keyboard, Knob, LFO, Oscillator
    LFO: 2
    Polyphony & Tuning
    Polyphony: 1
    Timbrality: 1
    Tuning: Atonal, Standard
    Modes: Mono
    Patches RAM: 1
    Case: Desktop
    Keyboard: 37 keys, Non-weighted, Plastic
    Controls: Buttons, Knobs, Mod - Wheel 2, Modulation 1/4" Jacks, Sliders
    Audio Output Connections: 1/4" Phone Jack, Mono Out
    CV Ports: CV IN, CV OUT, Gate In, Gate Out, Trigger In, Trigger Out
    Year Released: 1971
    Design Notes:

    The E-mu 25 had been a "front panel" synthesizer, but E-mu developers Dave Rossum and Scott Wedge thought it would be more fun to build a modular synthesizer.
    Manuals & Documents
    YouTube Videos
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