Recently on the train back from London I got talking to a guy with some pretty fancy in ear headphones. He had a pretty homeade braided cable with them, turns out all silver. I have decent cables (Chord Co) on my HiFi, but I did not think they made a big difference over the stuff I had originally. Is it worth upgrading the cable on my Audio Technica Headphones? It can be unplugged from the headphones. The cable has plugs on both ends. f I want to try something, where can get such a cable? Does it have to be silver (sounds expensive)?