Sundown Audio U-Series v.2 12" Subwoofer

• 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, substantially thicker aluminum frame was designed specifically for the U Series, equipped with heat dissipation ribs. 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 kept in check via a high-velocity solid pole / machined pole channels arrangement and a series of 16 direct air-gap vents in the back plate.
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Specifications

T/S SPECS	UV.2 12" D2	UV.2 12" D4
RE (Ohms)	3.8407	6.0577
FS (Hz)	41.3260	41.9087
VAS (L)	14.7612	14.7535
Qes	0.4862	0.5870
Qms	4.7454	4.9022
Qts	0.4410	0.5242
Le (mH)	3.1858	4.3694
BL (NA)	27.2694	31.1265
Mms (Grams)	358.6438	356.5462
Cms (uM/N)	40.4709	40.4498
Sens (dB @ 1w/1m)	85.1980	84.4191
Xmax	30mm	30mm

Enclosure Specifications

Sealed Enclosure	1.0 cu ft
Ported Enclosure	2.0 cu ft
Recommended Tuning	35Hz
Recommended Port Area	32 sq in
Displacement	0.21 cu ft
Depth	8.43″
Outside Diameter	12.84″
Cut-Out	11.2″
Physical Dimensions	Download

Dimensions