Recently got my OCC silver Litz ACSS cable. I immediately thought the silver Litz was better, but after the "new toy" syndrome wore off, I'm not quite sure what I prefer. The silver Litz has better clarity, resolution, control, expressiveness, soundstage, imaging - it is technically better. While the stock copper cable has more body, energy, dynamics and bass heft. I feel the silver Litz is very "hifi" sounding while the stock cable is more emotionally engaging although a bit coloured.