SKU: 6844410850

Sundown Audio - U-Series v.1 8"

Sale price$234.00 Regular price$260.00
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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

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Description

Sundown Audio - U-Series v.1 8"750W Watts RMS 1500 Watts Peak Dual 2 or 4 ohm voice coils Optimized for small ported enclosures Aluminum 2. 25 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 The U Series woofer

  • 750W Watts RMS / 1500 Watts Peak
  • Dual 2 or 4 ohm voice coils
  • Optimized for small ported enclosures
  • Aluminum 2.25” 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

The U Series woofer from Sundown is incredibly versatile, thriving in both competition setups and your daily driver. It features a double-stacked 9” wide ferrite magnet system and a robust top plate. It also incorporates shorting rings within the magnets and pole cap to enhance frequency response, act as a heat sink, and guide airflow. The U Series is equipped with a significantly thicker custom aluminum frame that boasts heat-dissipation ribs. The v.2 motor also includes an extended pole piece to ensure the coil remains controlled even under high stress!

Specifications

T/S SPECS U 8" D2 U 8" D4
RE (Ohms) 3.8 6.34
FS (Hz) 39.387 41.288
VAS (L) 6.345 6.970
Qes 0.412 0.519
Qms 2.474 2.542
Qts 0.353 0.431
BL (NA) 20.00 21.45
Mms (Grams) 175.340 145.239
Cms (mm/N) 93.125 102.308
Sens (dB @ 1w/1m) 81.6db

81.6db

Xmax 18mm

18mm

Enclosure Specs

  • Ported Enclosure
    • Size: .65-.75 cu. ft. net
    • Port Area: 9-12 sq. in.
    • Port Tuning: 35Hz
  • Sealed Enclosure
    • Size: .3 cu. ft. net
    • Displacement:  .09 cu. ft. 
  • Depth:  6.02"
  • Outside Diameter: 8.70"
  • Cutout: 7.3"

Physical Dimensions

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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: 6844410850

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4.9 ★★★★★
Based on 21 reviews
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Verified Purchase
tracey
Chelsea, US
★★★★★ 4
Good product
Set name: KOJIC
I have used 1/2 bottle since December. Easy to use on dry skin, I use it before showering. I Probably don’t use it enough, simply because I forget. I have had dry peeling skin on my forehead recently and thought, oh I should use it there. I have to say, it made a big difference. One use and the dry skin came off and my forehead looks much better. I was having a hard time with makeup looking splotchy and now it goes on smooth.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
S
Verified Purchase
Spudy
Phoenix, US
★★★★★ 5
Makes the skin smooth and soft
Set name: KOJIC
The product is wonderful. The first time I used it, it took off alot of the dead skin on my feet. Better than the "egg" or pumas stone. And bonus my hands are rough to and while rubbing on feet it rubbed off my hands as well and the hands are smoother too. NICE. Has a vick's vapor rub smell to it. Not overly strong. Im looking forward to having my feet smooth for the first time, ever!!! The only thing is the bottle it comes in. I could not get the sprayer to work. The off button worked beautifully but the on button did not work. When on it pumped but nothing came out. I even had my family and friends try to get it to work, but to no avail. So I put it in another spray bottle which worked and it was fine. Love the product!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2026
C
Verified Purchase
C. G.
Whiting, US
★★★★★ 5
Works great,smells like Noxema
Set name: KOJIC
This is a great exfoliater. I use it once a week from face to toes. The smell reminds me of Noxema wich I'm not fond of but it's dose rinse off well. Works on both wet and dry skin wich I like better than a different brand which only works on dry skin.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
M
Verified Purchase
Melissa Manankil
Massapequa, US
★★★★★ 3
No change in hyperpigmentation
Set name: KOJIC
I've suffered with hyperpigmentation on my armpits and have been using this for about a month now. I don't see a difference as far as the hyperpigmentation. I use it every other day before I shower but I will give three stars since it does smell great and leaves my armpits feeling soft after each use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
T
Verified Purchase
Tim Asuncion
Chelsea, US
★★★★★ 4
Woooo chile….
Set name: KOJIC
This product works great but there should be a disclaimer or lil tip for my guys and girlies who have longer leg hair…you might perhaps trim the legs hairs first or skip the legs altogether cuz girl this ish pills tf up and it took me a good 45 minutes to get it off my legs lol. Think bazookah bubblegum stuck on your skin after blowing a bubble that exploded 😭 5 star product but deducting one star for my poor legs
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Reviewed in the United States on May 21, 2026

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