I have to say that I wish I had the hearing that many here seem to have that they distinguish the subtlety of cables, etc. However, it is probably a good thing. What I experience is addictive enough as it is. Were my ears that good, I’d likely never get anything else done. I was able to pull up test tones on a search on Tidal. I know my Thiels can reproduce it, but I thought I’d blown my tweeter on the 14kHz tone. Nope. Just my ears. Too many live concerts over the years and work noise exposure.