Sennheiser HD 420
Data[edit]
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[edit]
- 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: