HIFIMAN's new earpad improved sound quality a lot comparing to old velour and pleather earpad. Both new pad and old earpad have identical inner diameter: 5.5 cm, but new pad is much softer than the old earpad. After being worn on the ears, softer earpad tend to shrink inner diameter more than the hard one. This is why there are very few complain about our old earpad which is identical in size, but much harder. We did have more than 50 people trying our new earpads during R&D. However, why we can not catch this problem? Human race of Mongolian (most east Asian people such as Chinese, Korean, Japanese, etc.) ear size is much more uniformed comparing to other race such as [COLOR=333333]Caucasian, but we don't have any foreign employee in hifiman China. We do have two Caucasian race employee in hifiman America. Unfortunately their ears are small :-(.
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[COLOR=333333]To solve this problem, we will ship two version of earpads to those preorder guys who have big ears
[/COLOR]: One earpad has hard inner material, the other one is thicker than the current pad. We will pick one of the earpad after receiving feedback. This trouble shooting case will take about 2 weeks so that we will have 2 week delay on shipping dealer's orders. At the same time, we will ship HE560 to Asian dealers without any delaying.