First off, these are ridiculously small for having dual armatures. UE's bundled silicone (gel-like?) tips are a very good match with these earphones - they have thicker than average flanges but are very flexible.   What the tips and size add up to is an instant seal consisting of popping them in your ears, pushing them in once, and looping the cable over your ear in all of 5 seconds. Their isolation is quite good, about on par with Shure's lineup.   The first thing to be noticed about their sound is their highs - quite transparent and very...