Sennheiser HD 620S: Audiophile-grade closed-back headphones for music lovers and gamers

At the heart of the HD 620S is a custom-tuned 42mm dynamic transducer manufactured at Sennheiser's state-of-the-art transducer plant in Tullamore, County, Offaly.

Sennheiser HD 620S closed-back headphones. Picture: Sennheiser.

The prestigious German audio company Sennheiser has long been a staple in the industry, renowned for its precision engineering and high-quality sound. The firm has a plant in Tullamore, where it manufactures audiophile headphones, including one of the world's most expensive headphones, the Sennheiser HE-1. Thankfully, not all its headphones cost €70,000, and over the past month, I've been testing one of their latest wired closed-back models, the Sennheiser HD 620s.

Design and build