to start off, i dont know much about audio/music system. i have this home theater system, see here http://nexisaudio.com/l-7.html and some speaker wire (2 conductors).  how i got this is long story for another thread (depends on the response). i dont see special audio cables or an amp [not sure if i need these too]; nothing to power on the speaker boxes too. i basically want to use the speakers with computer or TV. anybody can suggest what i would be needing ? amp? from where?