- The U series features an all-new cast aluminum frame series to the Sundown line which allows for taller cones than the older frames used on the Z v.3 series. The taller cones provide enhanced coil stability and increased mechanical excursion capability. We also tooled matching cast-aluminum surround clamps for the U series to ensure durability in the most demanding situations. The surrounds and cone bodies have been fully custom tooled especially for the U series and are stronger / support more
U-12 V2 D4 | Sundown Audio 12" Dual 4-Ohm 1750W RMS U-Series Subwoofer
FEATURES:
Black Aluminum 3” voice coil former for superior heat dissipation
High Temperature Round-Wire CCAW voice coil with high-temp black adhesive
Double stitched surround
Heavy duty cast basket
Spring loaded terminals accept up to 8 gauge
Stitched-on double-XL tinsel leads
Rear vented pole piece
Rear drilled gap-venting
Innovative high-velocity cast aluminum vented frame spacer ring
Magnet ID shorting ring
Top-Plate Cooling Channels
Cast Aluminum surround bolt-on rings
Optimized for small ported or bandpass enclosures
RE (Ohms) 6.1
FS (Hz) 40.0
VAS (L) 12.3
Qes 0.38
Qms 2.93
Qts 0.34
Le (mH) 3.67
BL (NA) 33.7
Mms (Grams) 284.5
Cms (uM/N) 0.06
Sens (dB @ 1w/1m) 85.0db
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 7.75″
Outside Diameter 12.83″
Cut-Out 11.01″
