Sundown Audio U-Series v.2 15" Subwoofer

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 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″ Physical Dimensions Download Dimensions