I have been out of the IEM shopping loop for a few years (since the launch of the e4c) and need to find something similar for my wife, as well as replace my aging e4c's. There are so many more IEM's on the market that I am feeling overwhelmed and don't know where to start. it used to be ety's, the 5 series Shure's, Ultimate Ears, and some Westone's were the only thing people talked about or compared against. What are some suggestions for IEM's that are similar to the Shure e4c's? I still very much like them, they're small, comfortable, somewhat musical and nicely detailed. i would like something that works well amped and unamped. thanks for any advice.