In fact, I am referring to the workmanship...

Does anyone have the same PF IX like mine？ 

Headphone stand for pf IX  

I am from Taiwan, my friend's viii has been used for more than a year, but his pf viii is previous versions, it doesn't have a " final " logo on it. I found out that there are some strange pf viii on taobao, I'm a little bit worried about it.

Quote: I have some questions...how much did you buy your pf viii  in asia？ because my friend's pf viii doesn't have this problem....

Quote: will pf viii gets dirty？ I thought pf iii is the most won't dirty pf than the other , because pf viii don't have plating on it.

I use some sponge in the earplug in the bottom (like sony ex1000 hybrid earplug ), the bass become better, but if fill all earplug, the sound will become obscure, who has 1601 can try it.