High-frequency performance: MX985 has good high-frequency resolution, loose sound and slight graininess. Its high frequency performance is relatively soft under good sound source, and its transient performance is also detailed and fast. Although the high frequency is a little brighter, it is still very detailed, and the details of the high frequency part are obviously richer, while the dynamic connection of the middle and high frequency parts is better, the sound is more balanced and the density is better.
Mid-frequency performance: MX985' s slightly relaxed style has certain advantages in the performance of mid-frequency vocals, especially when it is matched with low-quality portable audio sources, it will make the sound more stretched and not stiff, even in the performance of male voices, it will be soft and full of certain emotional colors.
Low-frequency performance: MX985 has loose sound but good controllability, rich transient details, but not blunt and unambiguous.
Overall impression: MX985 is a relatively easy-to-open earplug, but its efficiency is still slightly worse than that of in-ear earplugs. Even the sound source such as Xplay doesn't seem to be particularly full [also related to the quality of headphones]. However, in terms of sound source matching, MX985 users need to pay attention to some special places. IPC, iPhone 5 and other neutral and impulsive sounds are more powerful than Xplay, but the control power is obviously not as good as Xplay. The overall sound of MX985 is neutral, with good resolution and loose sound. Only on the iPhone 5, the high frequency is particularly impetuous, not harsh, but there are many subtle graininess, coupled with loose sound, the overall feeling is rough. The control power of IPC has been improved, but it is the best on Xplay, and the burr and loose graininess have disappeared. The following comments are mainly based on iPod Classic and vivo Xplay.