Sennheiser HD 424 specifications

Category : headphones

Brand : Sennheiser

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Tech nical data

Special equipment

Other models of the same series:

  • Manufacturer: Sennheiser
  • Model: HD 424
  • Years of construction: 1973 - 1975
  • Manufactured in: Germany
  • Weight: approx. 170 g incl. Cable
  • Factory price (RRP): approx. 75 DM
  • Principle: open
  • Coupling to the ear: Superimposed on the ear
  • Impedance: 2000 Ohm s
  • Rated load capacity: 0.1 Watts
  • Pressing force: 2.5 N
  • Frequency range: 16 - 20,000 Hz (-3db)
  • Total harmonic distortion: <1%
  • Sound pressure: 94 db at 1 mW power
  • Plug: 6.3 mm Jack plug
  • Cable length: approx. 3 m
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