Sennheiser HD 414 Headband Headphones - Black/Yellow for sale online | eBay
Can Sennheiser's iconic headphone compete with today's models? - CNET
Sennheiser HD410 vs HD414 vs HD424 Review
Sennheiser - #TB: In 1968, Sennheiser launched the HD 414, the world's first open-back headphones, which remain the bestselling full-size headphones of all time. Did you know that we still stock spares