I've had the HiFiMan RE-400 IEM's for about 6th months now, but I've had to cycle through three different pairs because one of the left or right channels would go out. I took very good care of them, and after my third pair broke, I decided that it would be best to just get some IEM's with better build quality (although the RE-400's sounded really good, don't get me wrong).
I like to listen to extreme metal music like Nile, Meshuggah, Wintersun, Suffocation etc. What would be a reliable IEM that would be around the $200 range? How are the Vsonic GR07's for extreme metal?