The turntable as a metrological system
A reference turntable engineered according to metrological principles, where drive, reference, geometry and measurement are functionally separated to preserve authentic sound.
A vinyl groove contains microscopic modulations that represent the original signal. The cartridge reads these modulations as mechanical displacement.
In this sense the cartridge behaves as a measuring probe. What it reports depends entirely on the mechanical system that supports it.
DATUM approaches analog playback as a problem of reference, geometry and vibration control.
DATUM separates the functions that define an analog playback system. Drive generates rotation. Reference provides structural stability. Geometry defines the operating frame. Measurement occurs at the cartridge.
This hierarchy ensures that the sensing element operates inside a stable mechanical system instead of compensating for instability after the fact.