Well i'm getting a new PC in two weeks and I was considering the Xonar. It's not too expensive, and reviews are good. Think i'll wait and see if the Mobo gives better sound than this one as this one is 3 years old haha. Thanks for the answers.
So basically, I purchased some extremely good headphones known as ATH-M50s. I first tested them on my iPod touch 5th gen and the sound quality was phenomenal, like nothing I had ever heard before. However, when I use them on my PC, the quality is a bit dissapointing. It's okay with acoustics...