Sennheiser HD 660S Headphones

Have a question, call us at 212-979-1273 Sennheisers' new HD 660 S is the ideal open, dynamic headphone for the passionate audiophile. It is exceptionally accurate and transparent, yet has an expressiveness that immerses you in every emotion and nuance of music. Reference-class open dynamic wired headphones Enjoy sophisticated audiophile sound in even more listening situations. Cutting-edge Sennheiser technology Meticulously crafted from hand-selected components and specially developed acoustic materials, these headphones deliver incredibly low harmonic distortion for an exceptionally natural, lifelike audio experience. 150-ohm nominal impedance Offers the versatility to enjoy reference-class high fidelity sound with stationary and mobile players alike. Choose a connection Includes connection cables with either 6.35mm stereo plug or a 4.4mm Pentaconn balanced stereo plug. A 6.35mm to 3.5mm adapter is also included. The detachable cables are made of highly conductive OFC co