The Edition X gets a major upgrade The HIFIMAN Edition XS expands on its predecessor's achievements with several major upgrades. Featuring Stealth Magnet Technology and the company's NEO Supernano Diaphragm, the Edition XS produces a wide and natural soundstage. The NEO Supernano Diaphragm is 75% thinner than the original version, resulting in lightning-fast response for detailed sonic output without distortion. NEO Supernano Diaphragm When it comes to detail retrieval, no factor is more importa