Straight out of the box, the Nezha proves to be good. I find the sound to be a bit on the warmer side. It's ease of driveability and pleasant sound quality remain consistent across different sources. The tuning is particularly likeable. What's even more surprising is the technical performance of these IEMs, which sometimes catch me off guard with their capabilities. The sound is rich in details, creating a sense of spaciousness, and the sound-stage reaches an impressive level. It very easily accommodates a wide range of genres, from metal to acoustics to jazz to everything, making it versatile for various musical preferences.
However, there are a few caveats. The bass is not quite impressive. They do not have the impact that most people would be looking for. The mids are a bit pushed back, which may bother some or not depending on personal preference. Other than that, I think Nezha is quite technically sound and is one of the good releases of the year 2023.