Performance Features Ergonomics Value PRICE $249 AT A GLANCE Plus Open- or closed-back design Lightweight Super easy to drive Minus A tad bright on some recordings THE VERDICT With its open- or closed-back design, the Edition S provides unusual flexibility at affordable cost. HiFiMan is a hard one to pin down. True, they’re best known for their high-end, advanced-technology planar-magnetic headphones like the $2,999 HE1000 I reviewed in the November, 2015 issue of Sound & Vision. Most HiFiMan headphones are planar designs, but this new one, Edition S, is a more conventional dynamic headphone, albeit one with a rather unusual feature: It’s an open- or closed-back design. Say what? Let me explain.