Question about Mackie SWA1801 Subwoofer
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Posted on Jan 02, 2017
First, Try the "defective" woofer in the cabinet that works well to be sure the woofer is OK.
If the woofer sounds good in the other cab, look to the power amplifier board : you have to test 2 fuses and 2 transistors witch are connected to the fuses : a defective transistor let your subwoofer work fine to half power, but distortion appear if you push away...
Posted on Oct 27, 2007
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