Downloading troubles!!!!!!!!!

I have a wicked kicka** Stereo and have noticed that after downloading frim limewire and then converting to media and then burning to a CD and finally getting to play it on my main stereo theres less sound comming from the left speaker!!!Mainly BASS. This is a problem because I made a particularly bassy CD to show of how it can move furniture to my buddy and now i wont because it sounds like crap please help. My current computer setup has two desktop speakers and one righthand sub. does the fact that the bass is comming out of the right on my computer have any effect on a my main bass system?????IT SUCKS!!!!