All Comparisons
Prime R2D4-10 10" Dual 4-ohm Component Subwoofer

Prime R2D4-10 10" Dual 4-ohm Component Subwoofer

Rockford Fosgate
$109.99
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VS
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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Subwoofer Spec Comparison

ParameterPrime R2D4-10 10" Dual 4-ohm Component SubwooferDown4sound PRO-FAB 12 | 12 Sub Box | Single 12-Inch Ported Subwoofer Enclosure Box
General
RMS Power250 W3000 W
Electromechanical
Re (DC Resistance)7.83 Ω—
Fs (Resonant Frequency)34.9 Hz32 Hz
Qts (Total Q)0.53—
Qes (Electrical Q)0.58—
Qms (Mechanical Q)6.44—
Le (Inductance)3.9 mH—
Physical / Acoustic
Vas (Eq. Compliance)38.4 L68 L
Xmax (Excursion)6.5 mm12.7 mm
Sd (Cone Area)339.8 cm²165.1 cm²
Sensitivity86.6 dB—
EBP (Efficiency Bandwidth Product)60.172—
Ideal EnclosureFlexible (Sealed or Ported)—