so I just got my wife a 2014 equinox and it needs a speaker upgrade badly. looking for a decent set of components and 8"subrecommendations to replace factory sub. all will be ran off the new ppi amps
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To find sealed resonance
resolve Vas/28.32 =
result of that divided by Vb( box volume)
result of that +1
square root that result
result of that multiplied by FS