I bought one pair of speakers (2 in pair) and connected them to my computer, they worked normally, but then happened something weird with them, my computer was off and some weird music started playing without any sound receiver, only speakers plugged in powered off computer (i also removed power cable from computer so there is no any electricity) and in middle of that weird music, there was a woman that was speaking in some language that i don't understand, is there any possible respond for that, how is that possible? There is no radio plugged in, nothing plugged that receive any signal, only a pair of speakers, nothing else.. Fortunately i recorded that sound. If you know what is going on, explain it to me.. Just give me some source where i can send this record to you..