SKU: 95896848534

Sundown Audio - X-Series v.4 18”

Sale price$697.50 Regular price$775.00
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Description

Sundown Audio - X-Series v.4 18”The Sundown Xv4 18 Subwoofer delivers unmatched power and control for serious bass enthusiasts. Built with high grade X v. 4 coils, this subwoofer is designed to handle up to 3000W RMS 6000W peak power, ensuring maximum output without distortion. Its optimized design enhances air movement and cooling, providing long lasting performance even under heavy use. The advanced motor structure and large cone area (SD 113. 41) create powerful low frequency

  • The Sundown Xv4 18″ Subwoofer delivers unmatched power and control for serious bass enthusiasts. Built with high-grade X v.4 coils, this subwoofer is designed to handle up to 3000W RMS / 6000W peak power, ensuring maximum output without distortion.
  • Its optimized design enhances air movement and cooling, providing long-lasting performance even under heavy use. The advanced motor structure and large cone area (SD 113.41) create powerful low-frequency response and clean sound reproduction.
  • Perfect for sealed or ported enclosures, the Xv4 18″ gives you flexibility in setup and tuning — whether for SPL competition or everyday high-quality listening.
  • Durable, reliable, and beautifully crafted, this subwoofer is the next-level upgrade your sound system deserves.
  • 18″ Xv4 Series Subwoofer

  • 3000W RMS / 6000W Peak Power

  • Dual 1-Ohm or Dual 2-Ohm Voice Coil Options

  • Precision-engineered X v.4 Coils for stability

  • Heavy-duty motor with 9.25″ diameter

  • Deep bass response with 35 mm Xmax

  • Sealed or ported enclosure compatibility

  • Recommended Port Tuning: 32 Hz

  • Built for extreme durability and clean sound

    Specification Value
    RMS Power 3000 W
    Peak Power 6000 W
    Displacement 0.28 cu ft
    Mounting Depth 15″
    Outside Diameter 18.42″
    Cutout Diameter 16.69″
    Motor Diameter 9.25″
    Sealed Enclosure Not Recommended
    Ported Enclosure 7.00 cu ft
    Recommended Port Tuning 32 Hz
    Recommended Port Area 112 sq in
    4th Order Sealed Side 3.0 cu ft
    4th Order Ported Side 9.0 cu ft
    4th Order Port Area 180 sq in
    4th Order Port Length 8″
    Xmax 35 mm
    SD (Cone Area) 113.41
    RE (Ohms) 2.05 / 3.74
    FS (Hz) 25.87 / 25.58
    VAS (L) 93.67
    Qes 0.63 / 0.55
    Qms 4.13 / 4.03
    Qts 0.54 / 0.84
    BL (NA) 19.74 / 26.8
    Mms 737.81 / 656.74
    Sensitivity 86 / 87 dB
    T/S Specs
    RMS Power (D2)
    3000
    RMS Power (D1)
    3000
    Peak Power (D1)
    6000
    Peak Power (D2)
    6000
    RE D1 (Ohms)
    2.05
    RE D2 (Ohms)
    3.74
    FS D1 (Hz)
    25.87
    FS D2 (Hz)
    25.58
    VAS D1 (L)
    93.67
    VAS D2 (L)
    1.7.58
    Qes D1
    0.63
    Qes D2
    0.55
    Qms D1
    4.13
    Qms D2
    4.03
    Qts D1
    0.54
    Qts D2
    0.84
    BL D1 (NA)
    19.74
    BL D2 (NA)
    26.8
    Mms D1 (Grams)
    737.81
    Mms D2 (Grams)
    656.74
    Cms D1 (uM/N)
    51.28
    Cms D2 (uM/N)
    58.9
    Sens D1 (dB @ 1w/1m)
    86
    Sens D2 (dB @ 1w/1m)
    87
    Xmax D1
    35mm
    Xmax D2
    35mm
    Subwoofer Measurements
    Displacement (Inches)
    0.28cu.ft.
    Depth (Inches)
    15"
    Cutout (Inches)
    16.69"
    Motor Diameter (Inches)
    9.25"
    Ported Enclosure Specs
    Ported Enclosure Size
    7.00 cu ft
    Recommended Port Area
    112 sq in
    Recommended Port Tuning
    32 hz
    4th Order Enclosure Specs
    4th Order Sealed Side
    3.0cu ft
    4th Order Ported Side
    9.0cu ft
    4th Order Port Area
    180sq in
    4th Order Port Length
    8"
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: 95896848534

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Kelleen S.
Lowell, US
★★★★★ 1
Make sure you read the terms and conditions and don't let them off the hook
Asurion is counting on the fact that you don't know how to read. They made the claim process aggravating and as difficult as possible. I CAN read and had to review the terms and conditions with them on the phone and threaten to involve an attorney before they would honor the coverage. They tried to say my product was not portable, when the word "portable" is literally in the name of the product. Then they tried to say the the accidental drop was not covered, but it clearly states in the terms and conditions that an accidental drop and a cracked screen is a covered event. I buy the coverage almost every time I am offered it, but I will be rethinking that going forward and Amazon should consider finding a different company to issue the protection plans for their products because I fear this is the beginning of a lot of complaints. I have filed a claim in the past and it was very straightforward and easy, but they must have a new company managing the plans now, because it was anything but easy. If I was an older person who was not tech savy, or who just took someone's word at face value, I would be out the cost of my item and the protection plan. BUYER BEWARE
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Reviewed in the United States on August 20, 2025
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Hugh Conley
Natrona Heights, US
★★★★★ 5
Refunded money quickly
Good service
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Reviewed in the United States on May 3, 2026
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Michael
Omaha, US
★★★★★ 5
Love it.
Style: Ink
I love my epson workforce printer. I used to be a Canon person but once I got this printer. It changed my mind. So the ink is worth it. Especially in the bundle package. It may be a bit on the pricey side but it last me awhile. At least, in my opinion, it’s less expensive than buying them separately. Epson makes great stuff and glad I chose to stick with them. The ink is very good and looks great after it prints. Thanks to Epson for functionality, cost and efficiency when it comes you your products.
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Reviewed in the United States on November 10, 2025
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Tonya Walker
San Leandro, US
★★★★★ 5
Epson Ink for the win
Style: Ink
Love my epson printer and that I can order the ink just about anywhere. Ink is of good quality and depending on the amount you print, it seems to last a decent amount of time.
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Reviewed in the United States on April 28, 2026
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Chris
Dallas, US
★★★★★ 5
It's ink and it works.
Style: Ink
It's ink and it works. My Epson printer is VERY finicky and only wants name-brand ink. This is it. A little pricey but they all are.
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Reviewed in the United States on July 4, 2025

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