I found out today that the wiring on the right earpiece of my SE530 is loose, so that whenever I move, the signal cuts out. Fortunately they are still under warranty, so I sent them in for Shure to repair.

My question is: what could have caused the wiring to be loose in the first place, so I can prevent this from happening in the future. I have been running with them on the treadmill everyday for the past two months, so is it that? And if it is, color me disappointed, because I thought the build quality should be able to withstand running.

The wires seem to be a bit thick. Maybe that creates too much torque? I dunno. I've been using mine sparingly, and in my bedroom rig for a while, so they've been stationary.

I've been using mine problem-free for years although I don't run so much as waddle.

I had a pair that the wire split after 9 months, Shure sent me a replacement pair. 10 months later that pair had a filter fall out somehow, Shure again sent me another pair. I sold them, because of little use, to some guy in the Netherlands. 2 weeks later he emailed asking if I had receipt because the sound was cutting out. To me it sounds like they have a batch problem because some beat them and they still work fine others like Humanflyz and I barely use them and they still break. I won't be buy Shures for a while.

I've been using my E500's for over a year with no problems... but I also don't hit the gym with them. I think it's definitely possible that they just aren't cut out for gym use.

The cable (or sheath) on the E500/SE530 has never been very reliable. Many people have experienced this problem to the point where I would consider this a question of not whether the cable (or sheath) with fail, but when... Fortunately, Shure has one of the best warranty policies around.