Noble's latest top of the line flagship IEM featuring three different driver technologies.  The Sultan utilizes a 10mm dynamic driver for bass and sub-bass, 4 Knowles balanced armature drivers for mid-low and mid-high frequencies, and two electrostatic super tweeters for high frequencies.  To house the internals, the Sultan has an aluminum shell that starts as a solid block of aluminum, which is then carved into its distinctive shape using robotic cutting heads.  The faceplates are all hand polished, lacquered and hand matched to give each Sultan its distinctive and unique look.  The nozzle includes a wax screen, and is sufficiently long enough to provide comfort and isolation to a broad range of  listeners.  The Sultan provides an extraordinary listening experience, with natural and detailed highs, the perfect amount of mid range frequency response, and tight yet full bass and sub-bass.