For those seeking a first-rate pair of planar magnetics, “XX” marks the spot. Our fourth collaboration with HIFIMAN, the Edition XX is a full-size, open-back headphone with the same basic shape and structure as its more expensive siblings: the HE1000, Edition X V2, and Ananda. For outstanding clarity and resolution, it uses the newly developed Neo Super Nano Driver, whose diaphragm—at just 1 or 2 microns thick—is 80 percent thinner than previous designs and 25 to 50 times thinner than human hair. The sound is airy and spacious, with a transporting level of detail. No dedicated amp? No problem. With a uniquely low impedance of 20 ohms, the Edition XX is easy to drive from your laptop or portable music player. Additional updates include a new symmetrical magnet structure and a more robust cable.