dan clark audio noire xDan Clark Audio NOIRE X Closed back planar headphones with audiophile sound quality Dan Clark Audio NOIRE X is a further development of the popular AEON 2 NOIRE and is designed to deliver high sound quality in a compact and comfortable format. With a focus on precision, low distortion, and long lasting comfort, NOIRE X is made for both serious listening at home and mobile use. The closed back design makes them suitable for undisturbed listening while