Sundown Audio U 15" 1750W RMS Subwoofer and Tru Spec Vented Single Enc — Big Jeff Online Inc
Skip to content
Free shipping with delivery in 2-4 days See details
Free shipping with delivery in 2-4 days See details




Sundown Audio U 15" 1750W RMS Subwoofer and Tru Spec Vented Single Enclosure Lot

Save 20% Save 20%
Original price $1,168.73
Original price $1,168.73 - Original price $1,168.73
Original price $1,168.73
Current price $934.98
$934.98 - $934.98
Current price $934.98
Snap Logo Lease for as low as $/week Learn More

Free Gifts when added to Cart

The more you spend, the greater selection of free gifts you'll have at your fingertips when selecting items in your shopping cart!

Spend More, Save More

Big Jeff loves his customers!!!
  • Spend $250, Save 3%
  • Spend $500, Save 5%
  • Spend $1000, Save 10%
  • Spend $1500, Save 11%
  • Spend $2500, Save 12%
  • Spend $5000, Save 15%

*Does not apply to: AudioControl, Sundown, XS power or Kicker products*

*Does not stack with other promotional sales*

This is a Sample Product Title
Was $200.00 Now $100.00
  • Powerful Bass Performance: Experience deep, chest-thumping bass with the Sundown Audio 15" 1750W Peak Subwoofer paired perfectly with the Tru Spec Vented Single Enclosure. Get ready to feel the music like never before.
  • Superior Heat Dissipation: The subwoofer features a black aluminum 3" voice coil former for excellent heat dissipation, ensuring consistent and reliable performance even during extended listening sessions.
  • Custom-Tooled Cast Baskets: Enjoy durability and precision with heavy-duty cast baskets custom-tooled for this subwoofer, enhancing its overall performance and longevity.
  • Easy Installation: The included vented prefab single 15" subwoofer enclosure is designed to match the subwoofer's specifications perfectly, making installation a breeze. It's all about convenience and optimized sound quality.
  • Tuned for Excellence: With a tuning frequency of 32Hz and a net internal volume of 3.00 ft³, this combo provides the ideal environment for your subwoofer to deliver thunderous lows while maintaining clarity. Elevate your car audio experience with this outstanding package.

Sundown Audio 15" 1750W Peak Subwoofer and Tru Spec Vented Single Enclosure Lot

This Listing Includes:

(1) U Series 15" Dual Voice Coil Subwoofer

(1) Vented Prefab Single 15" Subwoofer Enclosure

This U Series 15" subwoofer packs even more of a punch with the Tru Spec MDF Vented Prefab Single 15" Enclosure. This enclosure perfectly matches the specifications necessary to get the most out of this subwoofer. Get both in this amazing bundle.

Subwoofer Features

  • Black Aluminum 3" voice coil former for superior heat dissipation

  • High Temperature Round-Wire ALU voice coil with high-temp black adhesive

  • Double stitched surround

  • Heavy duty cast baskets - all new, custom-tooled

  • Spring loaded terminals accept up to 8 gauge

  • Stitched-on double-XL tinsel leads

  • Solid pole with vent channels and aluminum shorting ring cap

  • Rear drilled gap-venting

  • Innovative high-velocity cast aluminum vented frame spacer ring

Specifications U15 D2/D4:

  • RE (Ohms): 3.8279 / 6.0586

  • FS (Hz): 37.1918 / 36.4015

  • VAS (L): 43.5048 / 46.1027

  • Qes: 0.5463 / 0.6170

  • Qms: 5.4082 / 5.5975

  • Qts: 0.4962 / 0.5557

  • Le (mH): 3.4147 / 4.6596

  • BL (NA): 26.7943 / 31.1468

  • Mms (Grams): 438.4924 / 431.9457

  • Cms (uM/N): 41.7623 / 44.2561

  • Sens (dB @ 1w/1m): 87.8716 / 87.3156

Box external dimensions:

  • Length: 30"

  • Height: 16.5"

  • Width: 20.29"

Box Specifications:

  • Material thickness: 0.75"

  • Net internal volume: 3.00 ft

  • Tuning frequency: 32Hz

  • Port area: 48.00 inch

  • Cutout Diameter: 14.2"

  • Flush trim diameter: 15.75"

Payment Information


We accept PayPal for all ebay orders. You can use your credit through PayPal as all major credit card are accepted by PayPal.

We accept PayPal for all international orders, your address must be verified with PayPal.

We are not responsible for any custom duties or brokerage fees that may apply for all international orders.

When you click on the Buy it Now button you are entering into a
contract whereby you agree to purchasing the item at the price listed.

If you want to ship your item to an alternate address please add
that address on your PayPal account and use the address as the default
or confirmed address to pay us through PayPal

With Free Same Business Day Shipping we work to get you your order Fast. 


All orders over $500 will require a signature for delivery.

All pre-selected shipping rates and methods are for customers with a
valid residential or commercial address within the Contiguous 48 United
States (PO Boxes address may require additional charges).

P.O. Boxes, APO/FPO addresses, Alaska, Hawaii, Puerto Rico, Guam,
U.S. Virgin Islands, Northern Mariana Islands, American Samoa, Canada,
and other countries may require additional shipping fees. Please contact
a member of our team for detailed shipping charges.

Shipping is available only to PayPal verified addresses. When making
payment please confirm your address has been verified with PayPal. Once
payment is made shipping address can not be changed/altered. Payments
made using an unverified PayPal address will be refunded and order will
be canceled.

We will not accept request to change shipping address once payment
has been made. Please confirm your shipping address is up-to-date and

Typical handling time for orders is 1-business day. We do our best
to ship every package with-in 1 business day of receiving a cleared
payment. In some circumstances additional time may be need, in which
case we will contact buyer.

Shipped orders that are returned by the shipping company due to an
insufficient address or an undeliverable address will be refunded less a
20% restocking fee.

If package is refused or marked undeliverable and returned
back to us by the carrier, you will need to pay the shipping cost in
full to have the package sent back to you or we can refund the money
minus the cost of shipping


If you have not received your package, but the tracking information shows that it was delivered,
please do the following within 36 hours of expected, stated delivery:


Verify the shipping address on the order is the address where you are looking for the package

Look for a notice of attempted delivery

Look around the delivery location for the package, or see if a neighbor has accepted the delivery

Be sure to double check your mailbox and other usual spots for package delivery


If you think that your package has been stolen, we will require a police report since this is now theft.
Once we have a police report on file for the stolen package, we will reship your order.

Customer Reviews

Be the first to write a review