That must be a cowboy fix, you may contact Mr.Edifier for professional service, cost will be higher but should worth it since the speaker wasn't cheap.

This post has been edited by Cosef: Mar 23 2013, 11:54 PM

I email to Mr.Edifier and Edifier HQ,they told me too expensive to repair it,not worth the buck. I sent it to my local shop there and cost me RM60 but don't know why,buzzing sound appeared after repaired.

It is hard to fix it yourself when you don't have much knowledge on electronics and tools. There are many possibilities that will cause buzzing sound such as some component are faulty and didn't replace, circuits were shorted from poor soldering skills, etc.

Maybe you can seek for another well known good electronics repair shop.

pm me