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HD 25-1 II Headphones

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Built tough and capable of handling high SPLs in noisy settings.

The closed-back HD 25-1 II Headphones are purpose-designed, professional monitoring headphones offering high attenuation of background noise. Capable of handling very high sound pressure levels and of extremely robust construction, these Sennheiser headphones perform exceptionally well in potentially high-noise environments such as field recording, electronic journalism sound reinforcement, studio monitoring and audio equipment testing. The capsule can be rotated for one-ear listening. Ideal monitoring headphones for cameramen and DJs.


  • Very lightweight and comfortable, even if used for long periods
  • High maximum sound pressure level
  • 65 nominal impedance for universal compatibility
  • Tough, detachable steel cable
  • Neodymium ferrous magnet systems and lightweight aluminum/copper voice
  • Includes
    • 1 HD 25-1 II
    • 1 Bag
    • Soft ear pads (1 pair)
    • 1 adaptor to 1/4" (6.3mm) stereo jack plug

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    HD 25-1 II Headphones Specifications:

    • Frequency response: 16-22000 Hz
    • Total harmonic distortion (THD): < 0.3%
    • Sound pressure level (SPL): 120dB(SPL)
    • Transducer principle: Dynamic, Closed ear
    • Nominal impedance: 70 Ohms
    • Load rating: 200mW
    • Ear coupling: Supra-aural
    • Color: Black
    • Cable length: 4.9" (1.5m)
    • 3.5 mm stereo jack plug with 1/4" adaptor
    • Weight without cable: .31 lb. (140g)
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