Sennheiser HD 660 S – HiRes Audiophile Open Back Headphone

Note: Kindly refer to the user manual provided as a PDF manual in the product description section

150 ohm nominal impedance allows direct connection to home and mobile Hires audio devices. Contact pressure: 6.0 N ± 1 N

Frequency response 10 to 41,000 Hz ( 10 dB), Impedance 150 ohm

Supplied with two connection cables: One with a 6.35 millimeter stereo plug, the other a 4.4 millimeter Pentaconn balanced stereo plug. Also included is a 6.35 millimeter to 3.5 millimeter adaptor. Connectivity Technology: Wired 6.35 millimeter / 4.4 millimeter Pentaconn

Reference class open back, dynamic headphone employing new and improved transducers delivering low harmonic distortion

Para aramid reinforced, detachable cables employ high conductivity OFC copper to insure signal integrity with very low handling noise

Transducers are hand selected for precise (1 dB) left / right matching tolerance insure exceptional accuracy and presentation of stereo spatial characteristics