It looks like you are visiting outside the United States of America. Please visit your local website.
Please check the following points in order:
1) The wires are connected correctly
2) The line-in connectors are reversed
3) The audio source is at fault
Please switch the system of these Edifier speakers to the active mode, and remove the audio source. There will be no problem with these speakers if you can't hear noises from 1 meter away.
We recommend you to keep a 1-meter distance between the speakers and monitor or TV set.