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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
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
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″
Physical Dimensions
Download
Dimensions
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