yeah.. I think so... I am not saying or implying that ZS10pro sucks or anything.. It really is a great IEM for that price. The highs are aggressive to my ears... For instance, suppose natural cymbal sound frequency is 5KHZ, this IEM represent it as 7 or 8 KHZ... Not only that, it also sounds like there are some missing details in the high frequency range (like missing airy sound/It sounds too thin/narrow(?)) when the cymbal sound is playing, Moreover, maracas sound is also way unnatural and bit harsh.