Lauded by Forbes, The Verge, and InnerFidelity, and long rated Head-Fi users’ favorite IEM, the Noble Kaiser 10 returns as the Massdrop x Noble Kaiser 10. Also known as the K10, this model uses the same tuning as the company’s previous flagship, with 10 Knowles balanced-armature drivers per ear. Each pair is assembled and matched by hand, and the precision-machined aluminum housings feature Noble’s updated universal form factor and geometry—now with red faceplates and matte black shells. This IEM is sensitive enough for use with smartphones, as well as portable digital audio players and amps. Available only on Massdrop, and for nearly half the price of the original, it offers a new entry into Noble’s high-end line.