I've been through 9 pairs of these (more on that later). They're may go to headphones for running and commuting. Warm, smooth delivery and deep bass. Perhaps a little heavy on the low-mids, but I like it that way.   These are open back headphones which means no external noise isolation. For safety reasons, this makes them especially suitable for running, walking and even cycling (at low volumes). But they're probably less suitable for train commutes where leakage could be a problem.   The main problem with these headphones is that the connection...