Description
Sundown Audio U 8 D2
The Sundown Audio U-8″ D2 is an 8-inch shallow-mount subwoofer from the U Series, designed for compact installations where space is limited but strong, precise bass is needed. Featuring a dual 2-ohm (D2) voice coil, it provides flexible wiring options for a variety of amplifier setups. Built with a high-temperature copper voice coil, reinforced cone, and durable foam surround, the U-8″ D2 delivers controlled low-frequency performance and long-term reliability. Optimized for sealed enclosures, this subwoofer is ideal for trucks, vans, and compact cars, providing punchy, accurate bass in a shallow-mount design.
Specifications
| T/S SPECS | U 8″ D2 | U 8″ D4 |
|---|---|---|
| RE (Ohms) | 3.8 | 6.34 |
| FS (Hz) | 39.387 | 41.288 |
| VAS (L) | 6.345 | 6.970 |
| Qes | 0.412 | 0.519 |
| Qms | 2.474 | 2.542 |
| Qts | 0.353 | 0.431 |
| BL (NA) | 20.00 | 21.45 |
| Mms (Grams) | 175.340 | 145.239 |
| Cms (mm/N) | 93.125 | 102.308 |
| Sens (dB @ 1w/1m) | 81.6db | 81.6db |
| Xmax | 18mm | 18mm |
Enclosure Specifications
| Enclosure Type | Size (cu. ft. net) | Port Area (sq. in.) | Port Tuning (Hz) | Displacement (cu. ft.) | Depth (in) | Outside Diameter (in) | Cutout (in) |
|---|---|---|---|---|---|---|---|
| Ported Enclosure | 0.65 – 0.75 | 9 – 12 | 35 | – | – | – | – |
| Sealed Enclosure | 0.3 | – | – | 0.09 | 6.02 | 8.70 | 7.3 |
About The Product
The U Series woofer from Sundown is incredibly versatile, thriving in both competition setups and your daily driver. It features a double-stacked 9” wide ferrite magnet system and a robust top plate. It also incorporates shorting rings within the magnets and pole cap to enhance frequency response, act as a heat sink, and guide airflow. The U Series is equipped with a significantly thicker custom aluminum frame that boasts heat-dissipation ribs. The v.2 motor also includes an extended pole piece to ensure the coil remains controlled even under high stress!
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