No noticeable shift in location on Kraken

I purchased the Razer Kraken as it seemed like a cheap way to get a nice pair of 7.1 headphones - and pink ones at that! However, even after testing all my drivers, downloading the Razer 7.1 software, and trying a bunch of other usual fixes, it seems like I'm not actually getting 7.1 surround sound out of my Kraken - only stereo. This happens no matter what game, film, or test software I use, and I'm wondering if my pair have some kind of malfunction or if there's something I'm missing?