@nightsurfer
youre true.....all such electronic circuits we use at home normally operate on DC internally for which a converter circuit comes built-in........
but the guy who asked question seems novice...he is using pc speakers perhaps because he either have them in spare or for fun.......but being novice he will not be able to identify the component / converter circuit and its rating.......
say his speakers are built for 6v or 24 v.....he will end up having mumbling sounds or busting ém up......
bottom line.......for him they are just like an AC sourced speakers which he should not played with......
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