Please contact Customer Service at (800) 843-8823, or email firstname.lastname@example.org
. You will need to provide a serial number for your unit, as well as a copy of your purchase receipt. A Customer Service representative will issue a return authorization for you to return your speakers for repair. If they are outside of the one year warranty, you can purchase replacement speakers and not have to send yours in. The model number you supplied has been discontinued since 2007, so I believe you may have a different model. Customer Service should be able to determine your correct model.