About a week ago I purchased the Coppers. The batch is CI.
I did notice that the strain relieves on the earbud themselves (cable entry points) are very stiff, much stiffer than the ones on the Golds. I dismissed the issue.
Here's the problem. Due to the overly stiff relieves, today the cable on my left earbud sheared horizontally clean off. Future Shop replaced them, and the new ones I have right now is batch CG.
Now the strain relieves on the CG one are much softer and more flexible. So something must have gone wrong with the CI batch.
Anyone who has the CI batch Coppers might want to take extra caution when manipulating the buds. Anyone with other batches may want to check whether the strain relieves are too stiff. It would be nice to narrow down the problem.
The batch may be checked by looking at the cable Y-split. You should see something such as CF123. The letters are the batch.
Thank you very much.
EDIT: The new one also seems to have less bass. Hmm. This is getting interesting.
Edited by 3602 - 11/14/10 at 10:47am