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Maplin 5600S Stereo Synthesizer

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    An Australian designer, Trevor G Marshall, created a kit (half-analog, half-digital) called the ETI 4600. The sounds were published in October 1973 in the Australian magazine "Electronics Today International". The plans were bought by the English company Maplin Electronics, which marketed Maplin 5600 what was available in a wooden frame with a keyboard.

    The sound of the instrument does unique and really fat, and the semi modular architecture give you endless possibilities of your creativity.


    - Semi modular design
    - 30x30 pinmatrix section.
    - 4 oscillator module with 6 waveform+sync
    - 1 noise generator module adjustable from Pink to White noise
    - 1 LFO+S&H module
    - 5 Mixer module
    - 1 Envelope generator module
    - 2 Transient generator module
    - 2 Switchable LP-HP Filter module
    - 2 Switchable Amp+Ringmodulator module
    - 1 Phase module
    - 1 Reverb/Phase module
    - 2 External input module
    - 1 Foot pedal module
    - 1 Foot switch module
    - 1 Echo module
    - 1 Stereo Output module
    - 1 Joystick controller module
    - Full size 48 key monophonic keyboard (digital controlled)
    - 19 pin for pin matrix board
    Type: Analog
    Synthesis: Subtractive
    Oscillators: 4
    Waveforms: Pink Noise, Pulse Variable, Saw Down, Saw Up, Sine, Square, Triangle, White Noise
    Osc Modulation: Envelope, Keyboard, Knob, LFO, Oscillator, Ring Modulation
    Envelopes: 3
    Evelope Paramerters: Delay, Attack, Decay, Decay 2, Hold, Looping, Slope, Triggered, Time
    Envelope Notes::
    + 1 x ADHD2
    + 2 x Transient Generator w/ 7 controls: Start Level (+ & -), Delay 1, Slope 1, Hold Level (+ & -), Hold Delay, Slope 2, and Final Level (+ & -).
    Filters: 2
    Types: 24dB Slope (4-pole), High Pass, Low Pass, Resonance
    Filter Modulation: Envelope, Keyboard, Knob, LFO
    LFO: 1
    LFO Parameters: Sample & Hold, Sine
    Polyphony & Tuning
    Polyphony: 1
    Timbrality: 1
    Tuning: Standard
    Modes: Mono
    Patches RAM: 1
    + Reverb
    + Phase Shifter
    + Echo
    Case: Keyboard
    Keyboard: 49 keys, Non-weighted, Plastic
    Controls: Buttons, Knobs, Joy Stick, Modulation Pin Matrix, Pedal - Control, Pedal - Patch Change
    Display Type: LED
    Weight: 32 kg
    Audio Output Connections: 1/4" Phone Jack, Stereo Main, Stereo Headphone
    Audio Output Count: 4
    CV Ports: CV IN, Gate In
    Power: 220 - 240V AC
    Year Released: 1979
    Design Notes:

    Designed by Trevor G Marshall
    Manuals & Documents
    Used Price: $1,500 - $3,500 - convert
    YouTube Videos
    References & Sources
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