Question about Mackie SWA1501 Subwoofer

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My mackie swa1501 keep blowing their fuses after the gig not during but after only running at 60% and just family party music so nothing heavy . also why is thier two fuse holders one is the TA then under that their is a fuse holder (20mm) is this a surge fuse ?????

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  • Iain Black Jun 17, 2009

    that was fast help thanks. XSdB. Its the T4 fuse on the power supply that keeps blowing . i will replace fuses tomorrow and see what happens thanks for help.

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There are more than 2 fuses in the unit, one is power supply, the others are rail voltage for the amplifier. All must be exact in rating for proper protection from fire and overload. The voice coil coild melt or short, offering partial fuctoinality, but presenting an overload to the amp. Usually this is accompanied by somewhat distorted sound. If you have another one, and are on a budget... swap the amplifiers in the 2 units and see if the problem goes with the amp, or stays with the speaker. Then you will have your answer as to which half of the thing is causing problems. Speaker you can prolly chasnge yourself, the amp will need professional service.

Posted on Jun 17, 2009

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