HiFiMAN is a well-known brand among audiophiles. Based in China, HiFiMAN has produced some of the best sounding planar magnetic over-ear headphones on the market, from their entry-level HE-400i to their flagship HE-1000. Where HiFiMAN’s fullsize planars have traditionally been open-back, power-hungry, and very much not portable, the Edition S is different in almost every way. The Edition-S ($249) is an on-ear, dynamic driver, portable headphone that is easily driven by portable devices and packs an unusual feature – magnetic covers instantly detach from the cups, converting the headphone from closed-back to open-back in moments.{/exp:char_limit}