circa 1978, in original wooden case with two panels providing controls for: two voltage controlled oscillators (VCOs), a low frequency oscillator (LFO), voltage controlled low pass/band pass voltage controlled filter (VCF), trapezoid envelope generator, noise source, ring modulator, voltage controlled spring reverb, 16 x 16 patch board matrix and 18 resistive connecting pins, joystick providing X, Y modulation control, reverse with power connector, headphone output, oscilloscope output, stereo output, two voltage control outputs, keyboard connector, two line level inputs and two microphone level inputs, trigger input, accompanied by a EMS manual and plug, approx 17in wide x 20in high (43cm x 51cm)