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The Wersi Stage Performer MK1 SII

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    The Wersi Stage Performer MK1 SII (1986) is a 12 voice (expandable to 20 voices) additiv synthesizer with a rather basic user interface. In addition to the very complex envelopes for every harmonic's volume and pitch, there is only filter for all voices together. So the filter is paraphonic. You may overdrive the filter input with a preset amount. An anlog ensemble FX called Wersi Voice bucket brigade delay based effects (also available as stand alone unit) is selectable as master FX.

    The additive wave shapes are calculated on the digital main board. The results are then sent to the digital voices boards (2 voices on one board) as a short sample with the length of one wave cycle. If needed 4 keyboard zones are defined to get individual adjusted additive waveshapes. The loudness and frequency envelopes are very complex ones. In the standard modus they are defined by pairs of time and level values to get linear shapes. In the module modes the envelopes are defined by little macro elements that are defining rising or falling slopes in linear or exponential shape, rising or falling sine wave shape amplitudes, random value sections, absolute or relative levels and velocity controlled slopes. And you can add loops with counters in the module mode.

    Type: Digital
    Synthesis: Additive
    Oscillators: 2
    Osc Modulation: Envelope, Fader, Mod Wheel, Pitch Wheel
    Oscillator Notes:
    +Fourier Synthesis is possible
    Envelopes: 1
    Evelope Paramerters: Attack, Release
    Filters: 1
    Types: 24dB Slope (4-pole), Band Pass, Low Pass, Phase Warp
    Filter Modulation: Envelope
    Polyphony & Tuning
    Polyphony: 12
    Timbrality: 8
    Tuning: Standard
    Modes: Polyphonic, Split
    Patches RAM: 1
    Storage: Internal, RAM Cartridge, ROM Cartridge
    Editing: MIDI
    Case: Keyboard
    Keyboard: 61 keys
    Controls: Buttons, Faders, Sliders, Mod - Wheel, Pitch -Wheel, Pedal - Control
    Display Type: Vacuum Fluorescent
    Audio Output Connections: 1/4" Phone Jack, Stereo Main, Stereo Headphone
    Audio Output Count: 4
    MIDI Ports: IN, OUT, THRU
    Year Released: 1986
    Manuals & Documents
    Used Price: $435 - convert
    YouTube Videos
    References & Sources

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