Closed headphones rest on or around the user's ears and rely on a seal between the user's ears and the headphone for proper bass response, and somewhat isolate the user from outside sounds.
so you can see which brands are worth investing in. In our latest analysis, we've looked at a large range of headphones manufacturers – AKG, Apple, Beats, Bose, JVC, Philips, Samsung, Sennheiser, ...