Alright so I'm trying to just get two of my speakers working with my DVD player. What I have is my two speakers both wired to one headphone jack. Then I have that headphone jack plugged into a 3-channel volume booster, which is plugged into a double ended headphone input, and plugged in on the other side of that is a cable that takes the input for the red and white audio plugs. Now when I have this plugged into my computer (just the speakers plugged straight into the computer) both speakers work fine but when i put the red and white cables on only one speaker works. Is the problem that I should make two separate headphone jacks for each speaker? Thanks for any help.