Best Sounding 12-Inch Subwoofers for Your Car
If you want to elevate your car audio experience, investing in a high-quality subwoofer can signi...
Read Article →Prodigy
SKU: NB2-12D4
The Prodigy Audio NB2-12d4 is the high-output foundation of the NB2 lineup, engineered for those who demand the increased low-frequency extension and air movement of a 12-inch driver. Delivering a conservative 400W RMS, the NB2-12d4 is built around a robust motor assembly with a BL of 21.268, ensuring absolute control over the 216g moving mass. With an ultra-low FS of 28.37Hz, this subwoofer is specifically tuned to reproduce the lowest octaves with the "Old School Slam" that defines a high-end daily system.
Precision is maintained through a high-roll foam surround mated to a reinforced paper cone, allowing for 14mm of one-way linear excursion. To handle the thermal demands of consistent high-output play, the NB2-12d4 utilizes a vented pole piece and radial backplate vents to move air directly across the 2-inch copper voice coil. This cooling architecture, combined with a compliant Cms of 142.835, ensures the driver remains articulate and responsive even during demanding low-frequency transients.
Designed for versatile installation, the NB2-12d4 features a mounting depth of 6.750 inches and a 11.200-inch cutout, making it compatible with most standard and custom 12-inch enclosures. With a displacement of only 0.13 ft³, it maximizes the effective air volume of your box for improved acoustic efficiency. Equipped with heavy-duty chrome push terminals for a secure Dual 4-ohm connection, the NB2-12d4 is a reliable, high-performance solution for enthusiasts seeking professional-grade SQL performance.
| Model / SKU | NB2-12d4 |
| RMS Power | 400 Watts |
| Fs (Hz) | 28.37 Hz |
| Xmax (One-Way) | 14mm |
| RE | 6.2 Ohms |
| Vas | 55.392 L |
| Qts | 0.457 |
| Qes | 0.522 |
| Qms | 3.662 |
| BL | 21.268 |
| Mms | 216.268 g |
| Cms | 142.835 |
| Sensitivity (Sens) | 85.4 dB |
| Mounting Depth | 6.750" |
| Cutout Diameter | 11.200" |
| Overall Diameter | 12.500" |
| Displacement | 0.13 ft³ |
Pro Tip: EBP is just one factor in enclosure design. Always use complete Thiele-Small parameters and modeling software for optimal results. Our custom enclosures are engineered specifically for each subwoofer's parameters.
The Efficiency Bandwidth Product (EBP) is calculated by dividing the subwoofer's resonant frequency (Fs) by its electrical damping (Qes). This single number helps predict which enclosure type will work best with your subwoofer.
| Enclosure | Volume | Tuning |
|---|---|---|
| Ported | 1.75 ft³ | 32 Hz |
| Sealed | 1.25 ft³ | N/A |
No enclosures have been added to this product yet.
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