Back in the '90's when I was first discovering the interesting world of High End Audio I hung out at a great store called Acoustic Image in Studio City, California. The owner Elliot Midwood had a staffer there by the name of Kevin LaTour. This guy could hear immediately if interconnects were hooked up the wrong way. I mean, if the wire was directional, Kevin could instantly hear if something was "off" or not. So, I would be sitting in a listening room with our buds and they would be switching out all different brands of interconnects and speaker cable and analyzing the sound, Kevin would walk in, stand there for 10 seconds and say "Nope, you've hooked those up backwards". At first I regarded his comments with suspicion. I felt a prank of some kind was being played on me so one day I sat him down in the big listening room asked him if he would agree to a little test of his "directional" hearing ability. He said "Sure, if you buy lunch!" So, I grabbed some expensive interconnects (Purist Audio Design; I even remember the brand). I led Kevin out of the room and hooked up the wire from the line stage to the amp. Hooked it in correctly (according to the arrows on the wire itself). Brought Kevin back in, started something from Tumbleweed Connection and in five seconds he stated that the wire was in place correctly. I pushed him back out of the room, stood there for 30 seconds, brought him back in, played the same thing again and he stated that the wire was correct. I pushed him back out TEN MORE TIMES! Each time I reversed the wire he heard it and said so. Each time I tried to fool him by doing nothing he caught it. To me, I couldn't really hear a damn difference in either direction. I tried the same test with some cheap stuff as well just to be on the safe side (the cheap wire to me had a much better midrange but I said nothing about that)....Kevin got it correct every single time! I thought that was pretty amazing and told him so. He just shrugged like it was no big deal; I think he thinks everyone can hear like he does. So, I asked him what to listen for (crisper percussive attack, etc.) It took a lot of practice. After about a week I felt that I finally thought that I could start to hear what he was hearing (sort of, but not really). That boy really has golden ears; if he just guessed, how could he have guessed correctly over 20 times in a row? Geez. Too damn bad he's selling real estate in San Diego right now. Them ears is going to waste! So, my question to you Golden Ears Of The Internet is: Can YOU hear the directionality of wire? It's still a struggle for me. I can hear OTHER things right away; tonality, dynamics, etc... One thing I do know. If my wire has an arrow on it, I make damn sure I hook it up in the correct direction. (The arrows should always go "Source to preamp" or Preamp to Amp, Amp to speakers, etc.) So start at the source component and go in the direction of the signal all the way to the final destination. What I mean is, if there are arrows on your wire, respect the direction. Remember Kevin LaTour. He might drop in on you sometime!