So for starters, I have never been into cables, that was until I found my main IEM, the U12t. I started just wanting to have the versatility of having the option to go balanced and single-ended whenever I wanted, thus I gave the Kinera Leyding and Qoa Rum a try. Both the Kinera and the rum are under $100 so it is not really fair to compare them to the Eros S but it is what I have as experience. The u12t sounded way more narrow with the rum and Leyding cables, I loved how they looked and felt but being someone who is into classical, jazz, orchestra...