SOURCE: I have a pair of
you have one of two problems.1) the woofer is blown(most likely) or 2) the crossover is fried(rare). Take the woofer out and press on the speaker cone(softly). If there is a scratchy feeling when you move it or if it doesn't move at all, you'll either need a new woofer, or get that one reconed.
good luck.
SOURCE: replaceing internal fuse to mackie active sub woofer swa 1501
Hi There, you need to check the 3 fuses that clip onto the main amp board. You can access them by undoing the two screws that are on the top and the bottom of the sub. They have flat large heads and you will need a hex key to unscrew them. If it is one of the fuses that has gone it will either be discoloured as in burnt or you will see the metal inside has split. Simply replace these by pulling out the burnt out fuse and replace with a new fuse and hey presto you should be back up and running. If you need any parts for the sub or fuses then www.LondonSpeakerShop.com will be able to supply them (that is if you're in the UK). Also the offer a service of swapping them over for you if you really don't want to do it yourself. Hope this helps. Grant (from www.LondonSpeakerHire.com)
SOURCE: The Amp on Mackie SWA 1501 sparked and burned today
The Mackie SWA 1501 subwoofer is one on the best subwoofers but it's a heavy one. I have it since 2007 and have no problems with it, still working. I would recommend to buy the new SWA 2801z. If you're in germany check this site: Mackie Subwoofer in Cologne
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