The PRO range contains classic world-renowned studio headphones that are great for producing, mixing, mastering and other studio tasks. But you really do need to use a high-quality amplifier or audio interface to get the most out of these headphones. Thanks to the STELLAR.45 driver, The PRO X range are going to sound excellent in the Studio, plugged into an interface or amplifier – but you can also use them on the go if you plug them into a laptop or a smartphone as they are going to turn up very loud. On top of that the comfort and the overall mechanical design was increased and a removable XLR cable was added that can be swapped out depending on what you’re doing.