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

• 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"

Accepted Payment Methods at Big Jeff Audio

At Big Jeff Audio, we strive to make your shopping experience as smooth as possible by offering a wide variety of payment options. Below is a complete list of the payment methods we accept:

Credit and Debit Cards

• Visa
• Mastercard
• American Express
• Discover
• Diners Club

Digital Wallets

• Amazon Pay
• Apple Pay
• Meta Pay (formerly Facebook Pay)
• Google Pay
• Shop Pay
• PayPal

International Payment Methods

• Bancontact
• iDEAL

Bank Transfers

• Zelle

Financing Options

We also offer financing options to make purchasing easier. Learn more about our financing options here.

• Klarna
• Affirm
• Sezzle
• Snap
• Acima
• Tiptop

If you have any questions or need assistance with payments, feel free to reach out to us at info@bigjeffaudio.com or call us at 737-BIG-JEFF.

Shipping Options and Delivery Time

Do You Offer Expedited Shipping?

Yes! At checkout, you can select from different shipping options:

• Standard Shipping: Free for orders over $100.
• Expedited Shipping: Available at an additional cost, calculated based on the weight and destination of your order.

How Long Does Delivery Take?

• Handling Time: Most orders are processed and shipped within 1 business day after receiving cleared payment. Occasionally, additional handling time may be required, but we’ll notify you if that’s the case.
• Standard Shipping: Typically takes 3-5 business days, though delivery may be affected by extreme weather or holidays.

What Happens If My Package Is Undeliverable?

If your package is refused or marked undeliverable and returned to us by the carrier, you’ll need to pay the full shipping cost to have the package resent. Alternatively, we can refund your order, minus the cost of shipping.

Why Can’t I Track My Order?

If you're having trouble tracking your order:

• Make sure you’ve received the shipping confirmation email with the tracking number.
• Log into your account on our website and use the “Check Your Order Status” button.
• If the issue persists, please refer to our detailed guide on tracking your order or contact our customer service team for further assistance.