I want to make my own speakers system and what i have at the moment is 2 Akai 45W (recomended power) speakers and the 2 normal computer speakers that has a power cable that works with a USB cable and the normal 3.5 mm jacks to connect the two with. Now what I want to do is connect those with eachother bur i am not sure if i will need a external power sorce to make it work? And what steps do i follow to make it work? I want to be able to plug it into my laptop. Much help needed. Thanks a lot in advance...








