Originally posted by Cdub89
Its logitech thats ur problem
Hmm my friend had the same problem he had to take it back. Im not sure if thats the case tho.
Logitech is a great company, not sure what you're talking about. Anyway, try plugging your speakers in to the different spots on the sub which do work just to make sure all of the plugs and speakers work correctly. If they do, then it's your system's speaker settings. Let us know which it is after you tested your speakers.
EDIT: As a little side note, I only have the green wire plugged in to my audigy 2zs and I get all the sounds equally as well as having all plugged in, so I'm not sure why they include the yellow and black..