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Down4Sound PRO-FAB - Birch - 4x 8-Inch Ported Subwoofer Enclosure – 07-13 Chevy/GM Crew Cab – 2.5-Inch Seat Lift Required

Down4Sound PRO-FAB - Birch - 4x 8-Inch Ported Subwoofer Enclosure – 07-13 Chevy/GM Crew Cab – 2.5-Inch Seat Lift Required

Down4Sound
$439.99
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VS
TUB10 Nippon 10 Subwoofer Tube Box

TUB10 Nippon 10 Subwoofer Tube Box

Nippon America
$193.60
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Subwoofer Spec Comparison

ParameterDown4Sound PRO-FAB - Birch - 4x 8-Inch Ported Subwoofer Enclosure – 07-13 Chevy/GM Crew Cab – 2.5-Inch Seat Lift RequiredTUB10 Nippon 10 Subwoofer Tube Box
Electromechanical
Fs (Resonant Frequency)40.06 Hz—
Physical / Acoustic
Vas (Eq. Compliance)50.71 L—
Xmax (Excursion)6.4 mm—
Sd (Cone Area)77.4 cm²—