Sennheiser Consumer Audio HD 660S2 – Wired Audiophile Stereo Headphones with Deep Sub Bass, Optimized Surround, Transducer Airflow, Vented Magnet System and Voice Coil – Black

Natural, relaxed, high-fidelity sound with extra sub bass: Ultra-light aluminum voice coil with 300-ohm impedance for excellent impulse response and an intimate sound with great timbre
Airflow-optimised 42mm high-performance transducers: Improved ventilation due to a uniquely powerful vented magnet system for minimal distortion and air displacement control through steel mesh damping
Double the sound pressure at the lowest octaves: You can feel the lowest note on the piano (27.5 Hz) or the kick of the bass drum (45-60 Hz) as if you were there, at the recording studio
Exceptional comfort and build quality: The open-back design offers exceptional breathability and the plush ear cushions deliver maximum comfort – for long listening sessions
Natural and accurate reference sound that reveals the truth in your music
Lifelike depth and realism from open-back earcups that allow sound waves to expand naturally, New polymer-blend transducer membrane offers highly-linear excursion for superb control
Wide soundstage from ergonomic acoustic refinement (e.a.r.) that tilts the drivers to the natural angle of your ears
Extended low-end reach with gratifying presence for clear bass performance