Hey guys,
so after reading some/all of your posts, I've come to the conclusion that my problem solving skills aren't as good as they used to be.
The answer was staring me in the face but I didn't even think to consider it. I've got an extra set of speakers lying around (i.e. right next to my M80's) so all I needed to do was swap speakers to see if I got the same high pitched sound, and wouldn't you know it, I did so it can't possibly be the speakers as some of you already suggested.
Sometimes I wonder about myself. Thanks again for the quick replies!
fLuid
