SKU: 83939165300

Sundown Audio - U-Series v.2 10"

Sale price$382.50 Regular price$425.00
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Description

Sundown Audio - U-Series v.2 10"2000 Watts RMS 4000 Watts Peak Dual 2 or 4 ohm voice coils Optimized for small ported 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

  • 2000 Watts RMS / 4000 Watts Peak
  • Dual 2 or 4 ohm voice coils
  • Optimized for small ported 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.

Specifications

RE (Ohms) 3.918 6.1962
FS (Hz) 49.9826 48.2463
VAS (L) 5.6312 6.1900
Qes 0.5327 0.6317
Qms 4.4138 4.5611
Qts 0.4753 0.5548
Le (mH) 3.1056 4.1634
BL (NA) 26.5116 29.7199
Mms (Grams) 304.2236 297.0392
Cms (uM/N) 33.3280 36.6351
Sens (dB @ 1w/1m) 82.9533

82.1635

Xmax 30mm

30mm

T/S SPECS UV.2 10" D2 UV.2 10" D4

Enclosure Specifications

Sealed Enclosure 0.5 cu ft
Ported Enclosure 1.0 cu ft
Recommended Tuning 35Hz
Recommended Port Area 16 sq in
Displacement 0.21 cu ft
Depth 8.15″
Outside Diameter 11″
Cut-Out 9.75″
Physical Dimensions Download

    Dimensions

    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
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    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 83939165300

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    M.E.
    Lake Worth, US
    ★★★★★ 5
    Good Value
    Size: Extra Large, Color: Black
    Very easy to assemble, good instructions, seems to be decent quality.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 9, 2026
    B
    Verified Purchase
    Blue85
    Lake Worth, US
    ★★★★★ 5
    Easy to set up, easy to use, easy to move around, holds up well with strong wind.
    Size: Large, Color: Black, Size: Large, Color: Black
    Very easy to set up and start using within minutes. Easy to move around. It holds up well with wind gusts up to 35MPH (when umbrellas are closed and the brakes are engaged).
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 17, 2026
    P
    Verified Purchase
    Pat metsala
    Birmingham, US
    ★★★★★ 5
    Really nice umbrella base!
    Size: Large, Color: Black
    Love this base! It holds all size umbrellas. Very sturdy and the wheels are great! Has screws to hold the umbrella pole. I am so happy I bought this base!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 14, 2026
    V
    Verified Purchase
    VV_Kevin
    Lake Worth, US
    ★★★★★ 3
    Holds the umbrella in moderate winds.... but very difficult to roll around
    Size: Large, Color: Black
    Really wanted something that was mobile - and this is, but just barely. Wheels bind and get hung up on the smallest ridge or bump. It really takes two people to do it.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on September 13, 2024
    P
    Verified Purchase
    Peggy J. Robbins
    Fort Morgan, US
    ★★★★★ 5
    Excellent product
    Size: Large, Color: Black
    My second one of these. Easy to fill, empty and store.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 27, 2026

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