Intro/Disclosure Recently, I got the opportunity to A/B the Truthear Zero (Blue) and the Truthear Zero: Red. I purchased both these IEMs with my own money and all opinions are my own. My review is solely based on what I hear with my own two ears as this is a very subjective hobby. My ratings are based on how I think this IEM fares against other IEMs in its price range. My primary litmus test when it comes to audio gear is whether or not vocals and instruments sound natural/organic. Regardless if the IEM has the biggest bass or the most technical...