Sanders is right. If your goal is to pass the signal encoded in the software, well designed wires will pass it (nearly) unscathed. All you need are components, speakers and room/set up, as well as well trained ears, to realize the perfect replication when you hear it.
But, I suspect, nothing in the chain has the potential for passing a signal unscathed, so the purpose in buying specific designs/brands of wire is to correct for other deficiencies in the components, i.e. creating synergy between less than perfect components so that the end result is a sound that meets your expectations.
Wires certainly can make a difference, for better or worse, depending on what you are trying you to do with them. Or not, for a lot of reasons.
BTW, in response to your last question, I think you could do far worse than using Belden Cables, including Canare 4s11, or Blue Jeans IC's, until you gained the sophistication to understand your components needs for something more specific to get you to where you want to end up. You may justifiably never feel the need to change, or you may acquire a component which will benefit by using a different wire. But, IMHO, it is not about design or cost so much as synergy.
"Be careful, it's a jungle out there".............
