ECCI Yiyi PR100MKII in-ear headphones violent dismantling

June 04, 2020

In the evaluation of the zombie PR100MKII headset, we mentioned that it uses a dual diaphragm design, and ECCI officially introduced this: PR100MKII is equipped with two independent sounding diaphragms on one side. So, what is the internal structure of this headset? How does the double diaphragm work? We carried out a violent dismantling of the masses and loved them for study and study. From the dismantling situation, the PR100MKII does use two diaphragms, one of which is the diaphragm of the drive, and the other is a separate diaphragm [passive], which is located at the rear of the earphone housing. At first glance, this is very similar to the passive diaphragm design often seen in miniature speakers, but in reality they are essentially different: the independent diaphragm of the PR100MKII is not based on sounding, but rather A design that controls the pressure in the chamber to regulate the pressure balance inside and outside the chamber has advantages and disadvantages over the more common methods of opening.

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