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Sundown Audio U Series 6.5 v.1

Sundown Audio 6.5" 400W 2-Ohm/4-Ohm Dual Subwoofer
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$199.99
$159.99
SKU:
U Series 6.5 v.1
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1 year Manufacture Warranty

We are a Sundown Audio authorized dealer so you get up-to-date, fully warrantied products.

General Features:

  • RMS 400 watts
  • Dual 2 or 4 ohm voice coils
  • Optimized for small ported enclosures
  • Aluminum 1.75” 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

Perfect for high-power underseat enclosures and designed to be at home in the competition lanes or playing your favorite tunes, the U Series is the premier “standard suspension” woofer in the Sundown lineup. A double-stacked 9” wide ferrite magnet system is coupled to a thick top plate. A thick set of shorting rings are also used inside the magnets and on the pole cap, smoothing out frequency response while doubling as a heat sink and airflow guide. An all-new, substantially thicker custom aluminum frame was designed specifically for the U Series, and equipped with heat-dissipation ribs. The v.2 motor also features an extended pole piece to keep the coil controlled under high stress!

Brand Sundown Audio Sale Items
T/S SPECS U-6.5SW" D2/U-6.5SW" D4
RE (Ohms) 4.0586/6.6274
FS (Hz) 41.9533/38.6925
VAS (L) 2.9053/3.7701
Qes 0.5238/0.5005
Qms 8.5834/7.247
Qts 0.4937/0.4681
Le (mH) 4.0112/5.5892
BL (NA) 16.7428/20.0082
Mms (Grams) 137.2546/124.3518
Cms (uM/N) 104.8528/136.0613
Sens (dB @ 1w/1m) 77.8706/78.146
Xmax 19mm/19mm
Size .25-.35 cu. ft. net
Port Area 4-5 sq. in.
Port Tuning 35hz -40hz
Size 0.125-0.2 cu. ft. net
Displacement .04 cu. ft. 
Depth 5.71"
Outside Diameter 7.17"
Cutout 5.94"
Parts Warranty 1 Year
Labor Warranty 1 Year