These beauties I have are over 40 years old and still the best headphones I have owned. Lightweight, outstanding quality and everyone comments on the bright yellow earpads! Luckily, replacement foam earpads can still be come by.
The HD 414 is a high-quality, dynamic open aire headphone which excels not only by its balanced and natural sound impression but also by its very slight weight. This lightness is due to two small but powerful transducer systems, each of which is capable of a frequency response of 20 - 20000 Hz. An impedance of 600 Ω per system means that the HD 414 will work perfectly with almost any stereo unit. Like all Sennheiser earphones the HD 414 is fitted with our well-proven, extremely durable steel connecting cable. In order to distinguish between the two stereo channels, the mini-plugs have been marked L = left (yellow) and R = right (red). Please bear this in mind when putting the headphones on.