My senns are cutting out periodically in one ear or the other. There is still sound playing but it's very soft in comparison to what it should be, and it lasts for a few weeks on and off. Unfortunately, my warranty is expired since I purchased them more than 2 years ago. Any suggestions? Has...

Ok so I am totally new to the audiophile scene. I recently bought a pair of sennheiser pxc350's but decided that an IEM is better suited for me. I'm going to college soon, and I'm looking for something that will isolate well so i can ignore my roommate when I want to. If I can hear anything...