According to the head-honchos at Roccat, the company's mission is to take the most successful surround sound gaming headset ever and rebuild it from the ground up ? adding in a world of innovation. We will be grilling this headset to see if it is worth the additional ~£90 on top of the original Kave we reviewed back in 2011. Will the Roccat Kave XTD 5.1 leave ?No Sound Unheard?? Let's take a look.