Sonus Faber Olympic l - MIA

Help. One of my speakers dropped dead. Fine one day, gone the next. Drive them with a Mc MA6500 and never too loud. Owned for about 2 years and used about 5 months, recently 3 months as my larger speakers were still in boxes after recent move. The dead speaker looks fine, drivers intact. It just outputs a very faint but clear sound. Could it be just an internal component? Any repair source referrals or ideas would be appreciated. My local SF dealer where I did NOT buy these speakers is being fairly slow to respond. Thank you!