I am not a Dell Employee
Dell forum member since 2002
Home Built PC with Gigabyte GA-Z77X-UD5H motherboard, i7 3770 CPU, Windows 7 64 bit Home/Win 8.1. SSD drive. Sonar X3c 64 bit Recordng Software.
Member of Nashville based R.O.P.E.
Have you looked at both ends very close, even under a magnifying glass. Sometimes the markings are very hard to see. But, with the "imported" equipment they don't always adhere to industry standards.
Speakers are made to be "throw away" units not repaired and thus not much, if any documentation or avenues for repair.
One other issue, if the fuse blew, that is supposed to be a safety item for other component failures and even possible fire. There's no guarantee that it's "just the fuse".
(I do PC and guitar amp repair).