neonknight
The Technics Sp10R's main platter was designed to be used in combination with a platter mat, like the supplied factory rubber mat or an aftermarket metal based mat (ie. Copper, gunmetal, stainless steel, delrin ect.)
As shown in the poster link, that Sp10R platter was photographed in the "nude" without a mat installed. The material section at the top is a brass alloy, and not Copper.
"Even if the platter replaced with thicker and heavier one those guys always add copper mat on top of it, just like the latest Technics SP-10R."
The Technics Sp10R's main platter was designed to be used in combination with a platter mat, like the supplied factory rubber mat or an aftermarket metal based mat (ie. Copper, gunmetal, stainless steel, delrin ect.)
As shown in the poster link, that Sp10R platter was photographed in the "nude" without a mat installed. The material section at the top is a brass alloy, and not Copper.