The online auction: Sennheiser HD 600 Avantgarde has already finished

Sennheiser HD 600 Avantgarde Headphones The HD 600s. A permanent resident in the headphone hall of fame. But they're more than just headphones. They're an experience. And one that you'll never forget. From the moment you press play, you're immersed in a world of open, spacious sound. The HD 600s reproduce every nuance and dynamic detail with absolute precision, remaining faithful to your source material. It's no surprise that these have become the ultimate choice for audiophiles, musicians, and engineers the world over for more than two decades.