Subwoofer Spec Comparison
| Parameter | Alpine 10 inch Subwoofer and Box for Cab Truck | Rockford Fosgate M2D4-12IB |
|---|---|---|
| General | ||
| RMS Power | — | 400 W |
| Electromechanical | ||
| Re (DC Resistance) | — | 6.5 Ω |
| Fs (Resonant Frequency) | — | 38 Hz |
| Qts (Total Q) | — | 0.94 |
| Qes (Electrical Q) | — | 1.14 |
| Qms (Mechanical Q) | — | 5.27 |
| Le (Inductance) | — | 3.43 mH |
| Physical / Acoustic | ||
| Vas (Eq. Compliance) | — | 64.2 L |
| Xmax (Excursion) | — | 15 mm |
| Sd (Cone Area) | — | 539 cm² |
| Sensitivity | — | 88 dB |
| EBP (Efficiency Bandwidth Product) | — | 33.333 |
| Ideal Enclosure | — | Sealed |