In my reference system I use primarily Silver wire with Teflon insulation. I've had many high dollar cables in my system over the years and discovered like many audiophiles that rolling you own can sound just as good or even better. In my case it's a simple matter of using what sounds best. I prefer the naturalness of the DSR (Decware Silver Reference - pictured above) for line level sources, but on vinyl I find shielded cable is a must. For shielded cable I use a silver coax where the ground is braided around the center conductor. It looks like the picture above but is white instead of blue. You can find more info on these cables here.