If you’ve been in this portable audio hobby for any length of time, then you’re aware of Etymotic Research. The Ilinois company, founded by Dr. Mead Killion, is legendary. Its flagship ER4 models (of which there are three variants) are a true mainstay in any portable listener’s collection. It has been tested and verified both by professionals and hobbyists alike to be amongst the most accurate sounding in-ears, decades running. Continue reading Etymotic MK5: Isolator, Reborn.