A laboratory became an audio specialist.
Fritz Sennheiser founded Labor W shortly after the Second World War. The company moved from measuring equipment into microphones and headphones and remains family-owned, with engineering and specialised production spread across Europe.
- 1945
Labor W is founded near Hanover.
- 1968
The HD 414 becomes the first open-back headphone.
- 1991
The Orpheus electrostatic system demonstrates the high-end ambition.



