HiFiman Sundara Planar Dynamic Driver Over Ear Wired Headphones Hybrid HeadbandHiFiMan Sundara Planar Dynamic Driver Over Ear Headphones The Hifiman Sundara headphones feature a planar magnetic design that gives you multiple advantages over common dynamic headphones. Including lighter diaphragms for a faster response and a linear spread of sound across the speaker, reducing the level of distortion. The Supernano diaphragm is 80% thinner than previous designs to acoustically benefit the SUNDARAs. Newly Developed Diaphragm