Sennheiser HD660S2 Headphones

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$549 $799.99

Only 2 in stock!

Sennheiser has improved once again an amazing set of headphones. New for 2023 meet the HD 660S2. 

Enjoy your music on a completely new level. An intimate, relaxed sound signature combined with outstanding precision and exceptional comfort and now, extended sub bass for a deeply moving experience.

  • Uniquely powerful vented magnet system for minimized distortion
  • Ultra-light aluminum voice coil with 300-ohm impedance for excellent impulse response
  • Intimate sound with great timbre and deep, accurate sub bass
  • Plush ear cushions and open design for maximum comfort
  • Outstanding quality designed in Germany, made in Ireland
  • Transducer principle dynamic, open
  • Transducer size 38 mm
  • Frequency response 8 – 41,500 Hz
  • Impedance 300 Ω
  • Sound pressure level (SPL) 104 dB (1 kHz, 1 Vrms)
  • Total harmonic distortion (THD) <0.04% (1 kHz, 100 dB)
  • Ear coupling Over-Ear
  • Weight 260g
  • Adapter 6.3 mm (1⁄4 inch) to 3.5 mm
  • Connector 6.3 mm (1⁄4 inch) jack plug, 4.4 mm balanced plug
  • Cable length 1.8m
  • Magnetic field 2.5mT


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