I picked up a pair in the same kind of fashion you did. I found a Samsung AP04214-UV 14V x 3.0 amp laptop charger with the correct end to fit in the speaker (hardest part as I am sure the plug can be sliced to a better power supply if needed. I did find that when powered the speaker that has the volume knob on it made a scratchy noise when changing volume. Not a big deal but I noticed it. They do sound good tho. The black ones are harder to find, look cooler but didn't seem to sound as good so when I saw a set at re PC I passed on them. I would rather have their lisa as when I go up there all I do is drool on it. Yes everyone Im sorry for the wet marks on it, DON'T JUDGE ME!!!! }