The superior conductivity of pure copper, including thermal heat conductivity and the energy storage capacity of copper is quite different than a brass connector, where the heat is better localized during the heat transfer process in order to form a quick and robust solder joint. I wonder if a high-mass copper binding-post were mounted on an aluminum heat sink, if the quick thermal conductivity of aluminum with its mediocre thermal storage characteristic might help transfer excess heat in a similar manner as an unused rca jack on the back of a VCR or such is recommended for audio cable terminations with Bullet Plugs and KLE low-mass rca connectors. Either situation has to do with thermal management.
