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RMS 1750 watts
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. 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.
Specifications
RE (Ohms)
3.8710
6.0767
FS (Hz)
30.9541
30.9212
VAS (L)
111.7625
114.6901
Qes
0.5669
0.6572
Qms
5.6396
5.5116
Qts
0.5151
0.5872
Le (mH)
3.3981
4.7475
BL (NA)
27.4023
31.4938
Mms (Grams)
565.4130
552.1551
Cms (uM/N)
46.7560
47.9807
Sens (dB @ 1w/1m)
89.4169
88.8733
Xmax
30mm
30mm
T/S SPECS
UV.2 18" D2
UV.2 18" D4
Enclosure Specifications
Sealed Enclosure
3.0 cu ft
Ported Enclosure
4.0 cu ft
Recommended Tuning
35Hz
Recommended Port Area
64 sq in
Displacement
0.26 cu ft
Depth
10″
Outside Diameter
18.63″
Cut-Out
16.9″
Physical Dimensions
Download
Dimensions
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