Do expensive cables/wires REALLY make a difference

@Arcticmonkey, do not think of it as "Golden Ears", I consider it "Trained Ears". My hearing is normal, nothing exceptional. This hobby is about learning how to listen, and what to listen for. It's nothing more than time and money spent on trying different pieces of gear and cables that will help you learn to understand and appreciate the differences.
There's nothing special about a person's ability to hear differences, it simply shows that they have put in time and money to investigate this hobby. No one is born with "Golden Ears".

@ Jmcgrogan2, very well said my friend!

No offense intended, I do tend to be passionate about this subject.

Please don't assume though, that because I disagree with you about this topic that I am a newbie.

I have an ever-changing lineup of speakers but my component's include: Hegel h300, Roksan Radius 5MKII, Paradigm Studio Reference 100's, MacBook W/Amarra, variety of acoustic panels and a bass trap or 2, and I recently purchased a used and slightly marked-up pair of Harbeth 7es2's and I've enjoyed listening to live music on vinyl through them so much I am considering selling both of my speakers and get some Harbeth 30.1's

@ Arcticmonkey, Great system!, I bet it sounds really good!, Congrats!

I do not think that all expensive cables/cords make a difference. However, I can attest to Transparent Opus line = very sublime listening!