>>659518i'm a mechatronic engineer, trust me. try to disproove my reasing, you cant. also CNET can't.
earthing is the same witrh all 3 pole connectors. the important thing when earthing hifi is the diameter of the wiring. you want high cross section for low resistance, and no parasitric capacities or inductivities.
parasitic inductivities come from for example coiled up wiring. dont form the wires into a coil, make them go straight and with enough distance to each other. parasitic capacities may come from lose connectors forming small gaps that act as a capacitator.