The perfect marriage between conductors and the massive high-purity copper pins is not screwed, but a perfect solder connection.
Why is that worth mentioning?
Because plug or screw contacts even between apparently mirror-polished surfaces aren’t what they seem. Just view them under a microscope. They’re anything but smooth. The contact surface between plug and receptacle is actually pitted to raise the impedance and be prone to micro arcing. With power transmission, such contact resistance is even more detrimental to performance than it is for signal transmission. That’s because power transmission can demand high peak currents that must be delivered instantaneously. Wherever stranded Litz wires terminate screwed down inside a power plug, inevitable oxidation over time renders them subject to sonic degradation and safety concerns. Copper oxide has semiconductor properties. Those properties act as a radio-frequency receiver. Soldering all our connections with 10% Audio Consulting silver solder fixes these problems for good and generates a leap up in sound quality over power cables with screw contacts, where each and every such contact add up in the negative sense.