SKU: 83939165300

Sundown Audio - U-Series v.2 10"

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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

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    SKU: 83939165300

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    Nikki
    Whiting, US
    ★★★★★ 4
    Interesting
    Format: Paperback
    This was a very interesting read. I read it cover to cover in 2 days. It was fascinating. Many details within matched up to various interviews and stories I have heard. That being said, I did find it odd all the "human" like aliens appeared to be Caucasian. I realize most the descriptions included multi colored skin tones, but all the pictures appeared Caucasian. So the universe with multi dimensions has no diversity?? Also, why were the most malevolent beings the most terrifying in appearance? That seemed a bit odd. That they would just so happen to be the ones that also look the most scary? Also, I looked up some of the resources and such used and they were charging exorbitant amounts to hear about their contactee interviews or be apart of star seed ascension or whatever. It's just, if everything is to be believed, wouldn't they want everyone to experience the path to enlightenment? I mean we all have to earn a living, but $40 just to hear one session?? I scoffed at that. All that being said, I am very open minded and well, ready to ascend from this plant, like, yesterday.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 27, 2024
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    rayna b
    Los Angeles, US
    ★★★★★ 5
    Incredible source of information on extraterrestrials and where they come from
    Format: Paperback, Format: Paperback
    This book Has changed the game and is a breakthrough for those of us who want to know more about life that exist in our shared universe. The author has brought us an in-depth view of species and beings from all throughout the galaxies. A profound read full of information on extraterrestrials like never before, we get to have them all in one book! The author has done an amazing job with his research and is knowledgeable and convincing I believe he has evidence and enough resources to make this book believable to readers and one we can trust. Truly a work of art I have learned so much more than I ever had on this subject and really look at this book as a blueprint for humans to get know all of names of the extraterrestrials and where they come from.
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    Reviewed in the United States on March 24, 2021
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    M. D. R.
    Charlottesville, US
    ★★★★★ 3
    A very interesting read
    Format: Paperback
    The book has a straight forward and simple layout. I liked the variety of info they had on different "species", some probably real, and some very questionable. Since the information the author uses relies on MUFON reports, it assumes all reports people gave over the years are true. It loses me when it gets into the more malevolent groups like reptilians and then believe it or not, dragons, which are the ultimate evil controlling them.
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    Reviewed in the United States on June 30, 2024
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    D. Daniels
    Carnegie, US
    ★★★★★ 5
    very interesting compilation of our best knowledge
    Format: Kindle
    I’ve known Craig for a number of years and have read all his books. While the “Autobiography of an Extraterrestrial” series was ostensibly fiction, flash bulbs kept going off in my head, past life memories perhaps, and a strong sense that I had been there. This Species Almanac is more an attempt to compile our best knowledge and understanding of our place in the Universe and who the neighbors are.
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    Reviewed in the United States on September 10, 2025
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    Awsiukiewicz Lukasz
    Los Angeles, US
    ★★★★★ 5
    you will start wondering if this is real of sc-fi
    Format: Paperback
    Great book to read and see what potentially could be there. Its raw description of races without any bigger context, but this is what almanac is. Its not a story book. It gives glimpse of possibilities and and insight into political structure in the universe, what is good, what is bad - but that's just a glimpse without going deep in it leaving reader with impression: "OK, i want more!" and "ok, were to get more details on governance and technology, metaphysics, religion"? It's well organized. One thing that will come after reading is question: Is it really something real that is hidden in government secrets or its new branch of SC-FI?
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    Reviewed in the United States on November 16, 2022

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