02-11-2012 04:33 PM
Can you try connecting them to a different sound source as a test. An MP3 player or anything?
Check your sound mixer and make sure the audio output is not muted and it is set to stereo, 2.0 or 2.1 sound output.
04-03-2012 11:22 AM - edited 04-03-2012 11:22 AM
The S220 speakers use a standard 3.5mm analog plug to connect to their source. If you are able to (as BLH has also suggested) please test your speakers on a different source such as an MP3 player. The S220 speakers do come with a two year warranty. If your problem persists, please contact Customer Care in your region for further assistance and a possible warranty replacement. If you currently reside in North America, please feel free to contact me via private message.
I hope this helps you out.