I think you are better off hooking it up to a stereo if you have one. I wouldn't know of any modifications for the speakers itself. All I know is black is - and red is +. If your stereo has an 'aux' source (auxiliary) or even some other setting that lets you take sound from another source, then you are better off connecting a line out cable from your soundcard's lineout port to your stereo. A line out cable consists of one end that has the same jack size of headphones or speakers for your pc. That end goes to the line out of your soundcard.
The other end of the cable would consist of two RCA jacks, one red and one right. Red = Left speaker, white = right speaker. Check the back of your stereo to see if it has those red and white colored input jacks to connect the other end of said cable to your stereo, and the next thing to do is to set your stereo to the right source of where it is getting the sound from.
Also remember to first turn down your stereo before playing any sounds, and then adjust the eq settings of your stereo accordingly afterwards.
Last edited by Jeebizz; 10-29-2008 at 11:50 PM.