Sennheiser
HD-414
Sennheiser · Open-back dynamic · Archive dates the listed example to approximately 1971–1973; discontinued around 1975
An open-back Sennheiser HD-414 record with a 36 mm driver. The Japanese archive notes replacement pads in yellow, grey, green, blue, and red, and warns that many listings confuse the original with NEWTYPE, 414X, 414SL, or the later Classic version.
| Type | Open-back dynamic |
|---|---|
| Release | Archive dates the listed example to approximately 1971–1973; discontinued around 1975 |
| Impedance | 2 kΩ original listing; later 414 variants differ |
| Driver | 36 mm driver |
| Driver size | 36 mm |
| Connector | 3 m cable |
| Weight | 130 g without cable |
| Earpads | Historical replacement pads were recorded in several colours: yellow, grey, green, blue, and red. Confirm the version and pad size before ordering. |
| Headband | The original headband lacks the positioning grooves found on 414X; a blue semicircle on the capsule identifies the low-impedance 414X variant. |
| Replaceable parts | Replacement earpads are the documented accessory; cable condition and variant should also be checked. |
| Common modifications | Do not describe every white-headband unit as an original; compare capsule markings, weight, and headband grooves. |
| Repair difficulty | Moderate |
| Modification difficulty | Easy for pads; verify the variant first |
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