The Acoustic Signature DTD® bearing (Dura Turn Diamond® Bearing) Acoustic Signature writes: “The bearing is the heart of every turntable. With the new, maintenance-free ACOUSTIC SIGNATURE Dura Turn Diamond® bearing, we have succeeded again in minimizing the unavoidable noise level caused by the mechanical movement of the bearing. At the same time a spindle with a diamond-like hard surface reduces the friction coefficient by 60 (!) percent – optimal conditions for world-class sound!”.