You're sound card won't decode signals to 6.2 surround sound. I guess you could, however, buy some splitters and get it all hooked up. I don't know exactly how each of these connects to your card, but if it's analog you should be able to split whichever channel you wish. The problem is, the two different brands of speakers are built with different frequency responses in mind. Therefore, it would probably sound worse than if you were to just have one or the other attached.