Depende rapud na sa imong sound chip for example I have this Via HD Chip Sound card kay pwedi ra gihapon maka handle ug 6 channels.
Naa man baligya ani sa electronics shop, mao pud na gamit nako sa akong PC to my 2.2 Speaker.
Never plug the output of your power amp to your PC, nah aso dyud na imong sound card/chip.
Pero you can plug any output from your DVD/CD/MP3 (unpowered) to your PC input.
What imong pasabot? gusto ka buwagon ang out sa imong Sub, and satellite speakers?
EDIT: Kanag out sa imong PC if direct na nimo sa unpowered speaker kay hinay kaayo na mo tingog or some sound card/chip kay dili mo tingog.