At Gamescom 2016 in Cologne, German audio brand Sennheiser is at home -- and it's taking the opportunity to launch an entirely new range of gaming headphones, designed for players that want to block out the outside world entirely and focus on the game itself. With aviation-grade acoustic sealing, the new GSP 300 headset will work on PC and Mac, as well as PS4 and Xbox One, and it's joined by two new standalone audio amplifiers that promise the best possible sound sound quality -- both stereo and surround -- during gaming.