Sennheiser HD 660 S - Hires Audiophile Open Back Headphone

Description

Reference class open back, dynamic headphone employing new and improved transducers delivering low harmonic distortion Transducers are hand selected for precise ( 1 dB) left / right matching tolerance insure exceptional accuracy and presentation of stereo spatial characteristics 150 ohm nominal impedance allows direct connection to home and mobile Hires audio devices.Contact pressure:6.0 N ± 1 N Para aramid reinforced, detachable cables employ high conductivity OFC copper to insure signal integrity with very low handling noise Frequency Response 10 to 41,000 Hz ( 10 dB) , Impedance 150 ohm NOTE: Kindly refer to the user manual provided as a PDF manual in the product description section Supplied with two connection cables: One with a 6.35 millimeter stereo plug, the other a 4.4 mm Pentaconn balanced stereo plug. Also included is a 6.35 mm to 3.5 millimeter adaptor Wired 6.35 millimeter / 4.4 millimeter Pentaconn