Why Sennheiser’s new closed back headphones are a big deal for audiophiles (and the internet)

Sennheiser is clearly having a very good week. First was the announcement of the Accentum True Wireless, a new addition to the Accentum line with a pair of budget noise cancelling earbuds, but now there’s more for the audiophiles out there. On Wednesday, Sennheiser announced the launch of the Sennheiser HD 620S, which is a closed-back version of the much-revered HD 600 open-back headphones.