Fuses? Wilson speakers use Caddock resistors, not fuses. If you are looking for an alternative, please know that these speakers are tuned with these resistors specifically. They not only affect the sound quality but are designed to protect the drivers from overload and clipping. Using anything else would change the sound most likely. I agree that Wilson is charging a premium for these little things, but unless you have an open account with Caddock, I would advise you to get the right ones from them. If one can afford Wilson speakers, then one should be able to afford to service them.