ETI Research Link Spade (par)The new Copper Link Spade connector from ETI Research is made from one Rod of Tellurium Copper with the Gold Plated direct to the Copper without any Nickle. CONDUCTOR Tellurium Copper HOUSING Black Anodized Aluminium The ETI Research Copper LINK Spade is contoured to allow easy insertion on both Speakers and the Back of amplifiers. The aluminium housing in matte black is consistent with the design changes made to the Copper Link RCA. A more