*New* MusicWorks Acouplex Turntable MatNew Product! Specification: Matieral: Acouplex Composite Diameter 295mm Weight 310g Thickness: 4mm (3mm label recess) Your stylus doesn't read the groove, it reads the room sure the groove gets read, but at the same time acoustic energy from the loudspeakers is read, smeared in time, rumble from the bearing is read, traffic noise is read, even the damn stylus generates secondary noise, reflected and refracted back,which is read. It's cacophony.