The Alu Upgrade Sub Platter transforms your turntable to the next level. The diamond cut aluminium sub-platter can be machined to much improved and higher tolerances and is a substantial upgrade to regular sub-platters. By adding more mass to the entire platter and drive system this results in additional damping of noise and unwanted resonances. The improved tolerances during production will increase overall speed accuracy. The additional mass improves the short-term speed stability also known as Wow & Flutter.