Sennheiser HD 420

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Data

General

  • Manufacturer: Sennheiser
  • Model: HD-420
  • Year of manufacture: 1979
  • Made in: Germany
  • Weight: 129 g
  • Original price (UVP): approx. 150 DM (75 €)


Technical data

  • Principle: Dynamic, open
  • Coupling to the ear: Ear-lying
  • Impedance: 600 Ohm
  • Rated power handling:
  • Impression force:
  • Frequency range: 18 - 20,000 Hz
  • Distortion factor:
  • Sound pressure:
  • Connector: 5-pin DIN/6.3 mm jack
  • Cable length: 3 m


Special features

  • the cable is plugged into both ear cups with special plugs and can be replaced.


Remarks

  • The plastic of the headband is not chemically stable and feels sticky after a few years.
  • The gold foam insert on the outside of the ear cup breaks down and crumbles out over the years.

Other models in the same series:

Pictures

Reports

Links

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