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      12-18-2016, 01:33 PM   #28
Billfitz
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Drives: '15 328iX GT
Join Date: Jan 2015
Location: New Hampshire

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If you think a different driver in the under seat enclosures will make a major difference think again, as the laws of acoustics aren't on your side. At least as important as the driver is the size of the enclosure. For an explanation why google 'Hoffman's Iron Law'.
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