All Comparisons
BIO-12 // 400 Watt RMS 12 Inch Car Subwoofer

BIO-12 // 400 Watt RMS 12 Inch Car Subwoofer

CT Sounds
$79.99
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VS
Down4sound PRO-FAB Birch FLAT PACK 12 | 1 12 Sub Box | DIY 12-Inch Ported Subwoofer Enclosure Box

Down4sound PRO-FAB Birch FLAT PACK 12 | 1 12 Sub Box | DIY 12-Inch Ported Subwoofer Enclosure Box

Down4Sound
$139.99
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Subwoofer Spec Comparison

ParameterBIO-12 // 400 Watt RMS 12 Inch Car SubwooferDown4sound PRO-FAB Birch FLAT PACK 12 | 1 12 Sub Box | DIY 12-Inch Ported Subwoofer Enclosure Box
General
RMS Power400 W—
Electromechanical
Re (DC Resistance)2 Ω—
Fs (Resonant Frequency)—32 Hz
Physical / Acoustic
Vas (Eq. Compliance)—68 L
Sd (Cone Area)—165.1 cm²