Sennheiser HD 820 Closed-back audiophile headphones
The HD 820 headphones perform their best when driven by a powerful headphone amp like the Sennheiser HDV 820 . Sennheiser's top-of-the-line sealed headphones : When I found out Sennheiser was set to debut their new HD 820 headphones at the 2018 CES, I immediately sent an email to our video team. Our crew was already on the scene in Vegas, so I had to get their first-hand impression of these special 'phones. This is the first sealed-back model in Sennheiser's stellar HD 800 series, and the company has gone all out.