All Comparisons
Down4sound PRO-FAB 12 | 12 Sub Box | Single 12-Inch Ported Subwoofer Enclosure Box

Down4sound PRO-FAB 12 | 12 Sub Box | Single 12-Inch Ported Subwoofer Enclosure Box

Down4Sound
$219.99
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VS
Ultra Shock US12D2

Ultra Shock US12D2

Cadence
$96.00
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Subwoofer Spec Comparison

ParameterDown4sound PRO-FAB 12 | 12 Sub Box | Single 12-Inch Ported Subwoofer Enclosure BoxUltra Shock US12D2
General
RMS Power3000 W750 W
Electromechanical
Re (DC Resistance)—2 Ω
Fs (Resonant Frequency)32 Hz33.83 Hz
Qts (Total Q)—0.44
Physical / Acoustic
Vas (Eq. Compliance)68 L24.51 L
Xmax (Excursion)12.7 mm14.6 mm
Sd (Cone Area)165.1 cm²—
Sensitivity—93 dB