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 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

ParameterPrime R2D4-10 10" Dual 4-ohm Component SubwooferDown4sound PRO-FAB Birch FLAT PACK 12 | 1 12 Sub Box | DIY 12-Inch Ported Subwoofer Enclosure Box
General
RMS Power250 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 mm—
Sd (Cone Area)339.8 cm²165.1 cm²
Sensitivity86.6 dB—
EBP (Efficiency Bandwidth Product)60.172—
Ideal EnclosureFlexible (Sealed or Ported)—