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Old 01-13-2020, 01:40 PM
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jdandy jdandy is offline
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Join Date: Apr 2009
Location: North Central Florida
Posts: 53,224
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Guy.......You may have selected a machine screw that is too large. I used four metric M6 phillips pan head machine screws. They measure 45mm length. They are slightly larger than the hole in the heat sink but the softer aluminum allows the machine screw to tap threads into it. Gradually screw them through the heat sink across the top, then screw each screw a turn or so back across the top until the amp heat sink pulls away from the recessed area of the subwoofer cabinet. Once the amp plate is free, unscrew the machine screws and save for future use.

The machine screw that broke off should be easier to remove once you have the amplifier out of the cabinet.
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