NT-6 Pro provides a strong sense of resolution and intense detail, allowing us to perceive more sound intricacies. Its exceptional hardware quality, including six drivers and five frequency divisions, contributes to a high degree of sound separation. One notable feature of NT-6 Pro is its extended high frequencies, which avoids the sensation of hitting a "ceiling" often experienced with ordinary earbuds. The overall bright sound, combined with excellent high-frequency quality and resolution, makes its treble particularly appealing. However, the mid-range is relatively ordinary for NT-6 Pro, lacking thickness and giving the impression of distant vocals. Unfortunately, some songs demonstrate noticeable sibilance in the vocals. The low frequencies of NT-6 Pro emphasize texture rather than quantity, characterized by a restrained volume but high-quality bass. The speed of the low-frequency response is also quick, providing stimulating yet not overpowering sound.

The NT-6 Pro is a well-balanced IEM with distinctive highs and lows, although the midrange isn't as impressive. However, its appeal lies in its incredibly clean sound base and exceptional level of detail.

The sound produced by the NT-6 Pro is impressive in terms of overall quality and control. However, it does have room for improvement in terms of sibilance, bass presence, and midrange thickness. Hopefully, after sufficient burn-in, it will improve in these areas. Additionally, we can also change the headphone's sound signature by using different types of cables.

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