Sennheiser HD660S Headphones

The Sennheiser HD660S headphones are the successor to the legendary HD650 headphones. These new and improved headphones boast an new transducer design which improves performance.

• Impedance 150 Ω 
• Connector 6.35 mm / 4.4 mm Pentaconn 
• Frequency response 10 – 41,000 Hz (-10 dB) 
• Sound pressure level (SPL) 104 dB at 1V 1kHz 
• Ear coupling Over-ear (circumaural) 
• THD + N, total harmonic distortion and noise < 0,04% (1 kHz, 100 dB) 
• Transducer principle (headphones) Dynamic, open 
• Weight w/o cable Approx. 260 g (without cable)