All Comparisons
Down4Sound PRO-FAB - Birch - 4x 8-Inch Ported Subwoofer Enclosure - 19+ GM/Chevy Crew Cab – Under Seat – No Lift

Down4Sound PRO-FAB - Birch - 4x 8-Inch Ported Subwoofer Enclosure - 19+ GM/Chevy Crew Cab – Under Seat – No Lift

Down4Sound
$439.99
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VS
ZVX-15v2 | 15" 3,000 Watt Max Power Car Subwoofer

ZVX-15v2 | 15" 3,000 Watt Max Power Car Subwoofer

Skar Audio
$382.49
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Subwoofer Spec Comparison

ParameterDown4Sound PRO-FAB - Birch - 4x 8-Inch Ported Subwoofer Enclosure - 19+ GM/Chevy Crew Cab – Under Seat – No LiftZVX-15v2 | 15" 3,000 Watt Max Power Car Subwoofer
General
RMS Power—1500 W
Electromechanical
Fs (Resonant Frequency)33.5 Hz—
Physical / Acoustic
Vas (Eq. Compliance)48.92 L—
Xmax (Excursion)12.7 mm—
Sd (Cone Area)70.8 cm²—