If these are meant to have matched drivers, the largest selling factor besides price, how come people are finding one driver to be weaker than the other one? This is the only area that Chinese manufacture is still a little dubious.
I feel the same way. Will try out mine today after I get to college (there's a possibility they double sent it to me though) and I sincerely hope there's no rattling problem.
Can someone tell me how to check without fancy audio testing equipment?