@CYoung234 ,
@ricemanhk
First of all, my pair is fine, my silver cable has polarity issue, but regular doesn't - this wasn't hard to detect and everyone with some knowledge of the matter can do it 100% of the time. I knew, just from spending time on this forum, that my comments would have a strong reaction, that is the main reason why I went back and forth with pros on cons of ZS5, otherwise, just saying the bad stuff would probably get me killed here. I didn't directly compare them to IE800 as one just cant do that, just said that they were closer in terms of sound quality to it than a 5 year old 100$ benchmark IEM. This is where the progress happened. Given how the market of Chi-fi is extremely competitive in the budget segment, you need to look at ZS5 from a perspective, not just say that it's the best there is and put a full stop. Imho, this means that people need to be judgmental and point out the flaws, this is how things moved forward in the first place. I haven't heard a better IEM for 20$ and I don't think it exists currently, but it doesn't even come close to what good earbuds do at this price in terms of overall sound they put out. If earbuds can have a coherent proper reproduction of the music, and if we are talking about RX-1, amazing build quality as well, I see no reason why IEMs can't do at least similar for the same price. To repeat myself, KZ is not focused on the substance but the added sprinkles, and this is probably why I end up saying that it isn't perfect.
I heard the biggest difference when listening to Austin Wintory - Delphinus Delphis (from ABZU soundtrack). On its own, ZS5 doesn't do terrible, but if you begin to compare them, everything kinda becomes meh. Borislav Slavov - Times Sqaure - Evacuation (Crysis 2 soundstrac) also comes to mind.