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The Wersi Stage Performer MK1 SII

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Description
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.



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Technical Specifications
Type: Digital
Synthesis: Additive
Oscillators
Oscillators: 2
Osc Modulation: Envelope, Fader, Mod Wheel, Pitch Wheel
Oscillator Notes:
+Fourier Synthesis is possible
Envelopes
Envelopes: 1
Evelope Paramerters: Attack, Release
Filters
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
Patches RAM: 1
Storage: Internal, RAM Cartridge, ROM Cartridge
Editing: MIDI
Case
Case: Keyboard
Keyboard: 61 keys
Controls: Buttons, Faders, Sliders, Mod - Wheel, Pitch -Wheel, Pedal - Control
Display Type: Vacuum Fluorescent
Connections
Audio Output Connections: 1/4" Phone Jack, Stereo Main, Stereo Headphone
Audio Output Count: 4
MIDI Ports: IN, OUT, THRU
Production
Year Released: 1986
Pricing
Used Price: $435 - convert
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