Sennheiser HD 560S, Open back reference-grade headphones for audio enthusiasts, Over Ear , Black. Clean, natural sound that reveals the details of your music. Depth and realism thanks to open pavilions that allow sound waves to expand naturally. Thanks to E.A.R technology (Ergonomic Acoustic Refinement), the angled transducers (placed in the capsule) restore the ideal listening position every time you wear them. Excellent detail call with a fast and clear low frequency range. Sound pressure level (SPL) 110 dB (1 kHz, 1 Vrms) Frequency response 6 Hz to 38 kHz, cable length 1.8 m. Thanks to an open design, linear response and incredible sound, the Sennheiser HD 560S headphones will meet the pickier needs of audiophiles as well as studio professionals. While music lovers are treated to deep and defined bass and crystalline trebles without either taking over, producers are treated to a professional set of drivers that essentially place you in the optimum listening position without having to contend with the acoustics of your control room. The open construction of the ear cuffs give the sound more room, resulting in a more natural response that actually makes you feel like you're listening via a set of speakers, while the whole setup of these headphones supports honest and accurate audio reproduction.