- 2000 Watts RMS / 4000 Watts Peak
- Dual 2 or 4 ohm voice coils
- Optimized for small ported or bandpass enclosures
- Aluminum 3 voice coil former for superior heat dissipation
- High-temperature copper voice coil
- Double stitched surround
- Heavy-duty cast basket
- Spring-loaded terminals accept up to 8-gauge wire
- Stitched-on heavy-duty tinsel leads
- Solid pole with vent channels and aluminum shorting ring cap
- Rear gap-venting
- Top-Plate Cooling Channels
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. Its 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.
Specifications
| Specification |
D2Model |
D4Model |
| RMS Power |
2000 W |
2000 W |
| Peak Power |
4000 W |
4000 W |
| Displacement |
.26cu ft |
.26cu ft |
| Mounting Depth |
10″ |
10″ |
| Outside Diameter |
18.63″ |
18.63″ |
| Cutout Diameter |
16.9″ |
16.9″ |
| Motor Diameter |
9.7″ |
9.7″ |
| Sealed Enclosure |
3.0cu ft |
3.0cu ft |
| Ported Enclosure |
4.0cu ft |
4.0cu ft |
| Recommended Port Tuning |
35hz |
35hz |
| Recommended Port Area |
64sq in |
64sq in |
| Xmax |
30mm |
30mm |
| 4th Order Sealed |
2.25cu ft |
2.25cu ft |
| 4th Order Ported |
6.75cu ft |
6.75cu ft |
| 4th Order Port Area |
135sq in |
135sq in |
| 4th Order Port Length |
6″ |
6″ |