Introducing the beautiful Beyerdynamic DT 48 from 1937. The world's first dynamic driver headphone. Is it just me, or has headphone design declined since then? : r/headphones
The Historic Beyerdynamic DT 48 E (25 ohm) Sound and Summary | Stereophile.com
MiGちゃん @ 🇩🇪🌻🇺🇦 on Twitter: "A piece of history made it into my headphone collection. Related to the world's first dynamic headphone. A Beyerdynamic DT 48 E 200 Ohm version. https://t.co/DPLOa5Epnc" /
Beyerdynamic DT 48 E 25 Ohm | ▤ Full Specifications & Reviews
The Beyerdynamic DT48 Arrives... | Headphone Reviews and Discussion - Head-Fi.org