How to tempering new headphone?

 

 

The express finally delivered my new headphone.

Plug in MP3

Why it sounds weird?

 

There is a quality problem for the headphone I bought. I want to return it.

The new earphone's diaphragm is tight and hard, and the performance of headphone cannot be maximized. We can basically solve this problem through 3 stages of new headphone tempering, and each stage is about 100 hours, a total of about 300 hours.

Step 2 Moderate heat

All kinds of pop music

In this stage, you can listen to all kinds of pop music. But it's better not to choose classical music and feverish music.