yes it should work completely fine, ive done this on a laptop nuermous numebr of times, in personal partys.
speakers used : PRX612M (not mine)
mixer behringer DX626 (mine)
but dont worry i used PC alone too, it does work. not sure about the safety though.... but why would any dangers arise??
hello i tried a pocket radio it sounded better than my big stereo. havent tried pc yet. thank you very much