This self contained Eurorack expandable Midi to CV converter/calibration system offers an uncomplicated solution to the problems of tuning and scaling both vintage synthesisers and modern VCO Eurorack modules. With 16 bit voltage resolution and a tune time of 10 seconds. The unit can compensate for VCO alignment issues and environmental factors that cause tuning drift with the push of a button. Its Digital Automatic Audio Gain Control Circuitry (DAGCC) enables the unit to be connected to most synthesiser outputs, and has been tested on a large array of makes and models. While obviously not being capable of fixing the problems of faulty circuitry it will however save time and money on re–calibration, and ensure the technical side of synth ownership doesn't impinge on the creative process.