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  1. Fabrication, Tools & Tricks of the trade
    I recently purchased a Treo SSX 15" woofer that came with a crappy box so I want to make a new one but I have no idea how to calculate any of the port area things and the calculators do not work with the space in my trunk. The manufacturer recommends 3.5 cb/ft @ 29.4 hz with a 50sq/in vent...
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