Recently UE has very bad workmanship.I know.

Unfortunately,my english is very poor.I hope someone would translate this review http://www.erji.net/read.php?tid=680498

To Electric:because of EM has a canal outside,the sound insulation is worse among the CMs.However,it is same to normal "shallow" IEMs such as TF10.

Uhh~my english is too poor to write a detailed description.

Sorry,I have not other CM.But some of my friends have.One said the EM is more natural and comfortable than UE11.Another boy compared EM and 2X-S,he thought the 2X-S is too harsh!They have their own Ear Monitors.

There is my Ear Monitors,a dynamic CM.After 100h run-in,power overwhelming

Cool, however,is it means the W3 a defective product?

In my impression.The R07 was showed(by VSONIC) earlier than IE8(by Sennheiser).I have saw it(a sample) at a Hi-Fiers party in May 2008 . A ball-socket is set in the root of the canal,which is an innovation for more comfortable than common in-ear.I like this design.