SENNHEISER HD 660 S – HiRes Audiophile Open Back Headphone

Sennheiser’s new HD 660 S is an open back, dynamic headphone designed for the passionate audiophile. Meticulously crafted for the most demanding listeners, the HD 660 S builds on the legacy of the legendary HD 650, surpassing the exceptional performance of its predecessor incorporating a new and improved transducer that delivers lower harmonic distortion producing a more natural, lifelike audio experience. It is exceptionally accurate and transparent, with an expressiveness that immerses the listener in every emotion and nuance of the music. Employing a lower 150 ohm impedance, and supplied with cables using balanced (4.4 mm Pentaconn) and 6.35 mm connectors, the HD 660 S offers connectivity versatility to provide reference class fidelity with stationary and mobile audio players alike.

Make sure this fits by entering your model number.
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
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. Connectivity Technology: Wired 6.35 millimeter / 4.4 millimeter Pentaconn
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