Search  for anything...

Sundown Audio U-12 D4 12" 1500W RMS Dual 4-Ohm U-Series Subwoofer

  • Based on 27 reviews
Condition: New
Checking for product changes
$399.99 Why this price?

Buy Now, Pay Later


As low as / mo
  • – Up to 36-month term if approved
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 6 left in stock, order soon!
Fulfilled by Amazon

Arrives Wednesday, Jul 2
Order within 5 hours and 56 minutes
Available payment plans shown during checkout

Features

  • The Sundown Audio U-12 is a 12-inch subwoofer with a 1500 watt RMS power rating. It has a frequency of 42.2 Hz and a DC resistance of 3.8 . It also has a sealed and ported enclosure.

Description

U-12 D4 - Sundown Audio 12" Dual 4-Ohm 1500W RMS U-Series SubwooferSPECIFICATIONS: DC Resistance (Re): 6.1 Ω Resonance Frequency (Fs): 40.0 Hz Equivalent Volume (Vas): 12.3 L Electrical Q Factor (Qes): 0.38 Mechanical Q Factor (Qms): 2.93 Total Q Factor (Qts): 0.34 Voice Coil Inductance (Le): 3.67 mH Force Factor (BL): 33.7 NA Moving Mass (incl. Air Load) (Mms): 284.5 g Suspension Compliance (Cms): 0.06 mm/N Sensitivity: 85.0 dB 1w / 1mBox Recommendations: Sealed: 1.0 cu. ft. Ported: 2.0 cu. ft. Displacement: 0.21 cu. ft. Depth: 7.75 in Outside Diameter: 12.83 in Cutout Diameter: 11.01 in Recommended Tuning: 32 Hz Recommended Port Area: 32 sq. in

Brand: Sundown Audio


Speaker Maximum Output Power: 1500 Watts


Frequency Response: 40 Hz


Connectivity Technology: RCA


Audio Output Mode: Surround


Mounting Type: Flush Mount


Model Name: U-12


Speaker Type: Subwoofer


Recommended Uses For Product: Volume


Compatible Devices: Smartphone, Tablet, MP3 Player, Desktop, Laptop, Car


Subwoofer Diameter: 12 Inches


Controller Type: ring


Surround Sound Channel Configuration: 6.1


Included Components: [Subwoofer, ...]


Product Dimensions: 7.75"D x 12.83"W x 12.83"H


Item Weight: 45 Pounds


Impedance: 3.8 Ohm


Is Waterproof: FALSE


Warranty Type: Limited


Number of Items: 2


Control Method: Remote


Speaker Size: 12 Inches


Power Source: Corded Electric


Woofer Diameter: 12 Inches


Vehicle Service Type: Car


Water Resistance Level: Not Water Resistant


Customer Package Type: FFP


Audio Driver Type: Dynamic Driver


Audio Driver Size: 12 Inches


Subwoofer Connectivity Technology: Wired


Connectivity Protocol: RCA


Includes MP3 player?: No


Number Of Circuits: 1


Number of Power Levels: 1


Series Number: 12


UPC: 796516055138


Manufacturer: Sundown Audio


Item Weight: 45 pounds


Item model number: U-12


Is Discontinued By Manufacturer: No


Date First Available: March 20, 2018


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jul 2

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Best all around daily sub
Delivery is fast . Sundown is quality made equipment. Sundown is very underrated subs. Perfect daily subs not needing huge box specs to sound great. Do not under power . Do not run if on stock electrical unless you have big 3 or 4 done with good lithium to support and it still eventually will need ho alternator. Can t go wrong buying sundown. ... show more
Reviewed in the United States on May 6, 2025 by Stephen cloward

  • Heavy Duty
Replacing an old Memphis Audio Mojo 12” that was twice the price. Magnet was from around 2008 and cone was replaced around 2014. Lots of hours! Running on a Kicker ZX1000.1 @ 2 ohms that tested 1230w rms @ 14.4 volts from the factory. I was skeptical of Sundown, especially for the price, but it exceeded my expectations. Terminals are bigger and can handle larger gauge wire. Leads going to voice coils are triple the size and the double stitching on surround looks very durable. Cleaner sounding than the Mojo at a higher volume. I would love to see what it sounds like with 1500rms. Highly recommend. ... show more
Reviewed in the United States on March 24, 2024 by And

  • Good value
These subwoofers are Awesome.
Reviewed in the United States on July 22, 2024 by Eric

  • Smacks
Sundown is love sundown is life these bump
Reviewed in the United States on January 20, 2024 by Amazon Customer Amazon Customer

  • Great product and a fast shipping
Great speakers sounds amazing.
Reviewed in the United States on December 24, 2023 by Amazon Customer

  • Sound great.
Very musical yet still get down.
Reviewed in the United States on October 7, 2023 by chris

  • biggest sub i could fit in my ram 1500
These subs are indestructable and hit decently hard and clean, I think dc audios hit deeper but indeatructablity has to be worth something
Reviewed in the United States on November 5, 2018 by keith shadrick jr

  • Very musical subwoofer!
Very loud have 2 of these hooked to taramp bass 5k at 1 ohm.only dislike is the baskets on these subs look cheap.
Reviewed in the United States on November 20, 2022 by anymonus

Can't find a product?

Find it on Amazon first, then paste the link below.