Description
Sundown Audio UV.2 15 D4
The Sundown Audio UV.2 15 D4 is a 15-inch shallow-mount subwoofer from the UV Series v.2 lineup, engineered to deliver deep, punchy bass in compact or limited-depth installations. Featuring a dual 4-ohm (D4) voice coil, it provides flexible wiring options for various amplifier setups. Built with a high-temperature copper voice coil, reinforced cone, and durable foam surround, the UV.2 15 D4 ensures tight, controlled low-frequency performance and long-term reliability. Optimized for sealed enclosures, this subwoofer is ideal for trucks, vans, and vehicles with limited space where strong, accurate bass is required.
Specifications
| T/S SPECS | UV.2 15″ D2 | UV.2 15″ D4 |
|---|---|---|
| RE (Ohms) | 3.8279 | 6.0586 |
| FS (Hz) | 37.1918 | 36.4015 |
| VAS (L) | 43.5048 | 46.1027 |
| Qes | 0.5463 | 0.6170 |
| Qms | 5.4082 | 5.5975 |
| Qts | 0.4962 | 0.5557 |
| Le (mH) | 3.4147 | 4.6596 |
| BL (NA) | 26.7943 | 31.1468 |
| Mms (Grams) | 438.4924 | 431.9457 |
| Cms (uM/N) | 41.7623 | 44.2561 |
| Sens (dB @ 1w/1m) | 87.8716 | 87.3156 |
| Xmax | 30mm | 30mm |
Enclosure Specifications
| Sealed Enclosure | 2.0 cu ft |
| Ported Enclosure | 3.0 cu ft |
| Recommended Tuning | 35Hz |
| Recommended Port Area | 48 sq in |
| Displacement | 0.24 cu ft |
| Depth | 9.0″ |
| Outside Diameter | 15.6″ |
| Cut-Out | 14.1″ |
About The Product
Designed to be at home in the competition lanes or playing your favorite music, the U Series is the premier “standard suspension” woofer in the Sundown lineup. A double-stacked 9.4-inch wide ferrite magnet system is coupled to a thick top plate. A thick set of shorting rings are used inside the magnets and on the pole cap, smoothing out frequency response while doubling as a heat sink and airflow guide. A custom aluminum frame was designed specifically for the U Series. It’s substantially thicker and equipped with heat dissipation ribs at the bottom of the frame. The U v.2 motor also features an extended pole piece to keep the coil under perfect control under high stress. The coil temperature is controlled with machined, high-velocity pole channels and a series of 16 direct air-gap vents in the back plate.
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