Mike New platter, Oyaide MJ-12 mat & STB-MS stabiliser arrive at Marco Towers...

[Reid Malenfant]

Don't really understand it all myself, why should a metal sound better than say cork or felt. If it is an interface between vinyl and steel (presume that is what the stock platter is made from) then a vast array of materials could potentially work as well as copper, a thin sheet of acetal would be worth a punt as that has superb resonance absorption properties, it's no co-incidence that Nordost's Pulsar points (which I sold shit loads of) were made from aluminium. Maybe they should be made from copper!

Cork or felt don't have enough mass to damp the platter imo. They are lightweight & as such the platter being heavier alloy will control the overall situation. Copper is heavier than alloy or aluminium per unit volume (higher density) so it stands to reason that a heavier something is needed to control the platter imo