Which version of the Kraken do you have? There are a number of them on Razer's site. If you're using a splitter, connected to your audio ports on your chassis/motherboard's I/O you should first try with seeing if listen to this device is enabled and or if you have audio enhancements enabled. Next make sure you're on the latest drivers for your sound card. Then make sure you're on the latest BIOS update for your motherboard.