Add to favorites
Polk Audio DB842 DVC - DB+ Series 8 Inch Shallow Mount Subwoofer for Marine/Car Sound System, 30Hz-200Hz Frequency Response, Dual 4-Ohm Voice Coils & Polypropylene Woofer Cone by Polk Audio - Used condition

Polk Audio DB842 DVC - DB+ Series 8 Inch Shallow Mount Subwoofer for Marine/Car Sound System, 30Hz-200Hz Frequency Response, Dual 4-Ohm Voice Coils & Polypropylene Woofer Cone

Brand: Polk Audio

Condition: Used
$9555
$10000
-5% Save $445
Updated: 8 hours 3 mins ago

Description

POWERFUL 8 INCH SUBWOOFER FOR CAR & MARINE - The Polk DB842 DVC 8" Marine Certified sub is a space-saving sub with 750W peak power and features a polypropylene woofer cone and a durable Santoprene surround built to handle big power over the long run

CAR AUDIO HARD-HITTING BASS - With Dynamic Balance Technology, a Polk Audio proprietary, this marine 8 subwoofer uses laser imaging to identify the best combination of speaker materials, ensuring distortion-free response with wide sound dispersion

SPLASH-PROOF SOUND SYSTEM - Polk DB+ series speakers & marine subwoofer give thunderous sonic output in freshwater boats, motorcycles, ATVs, etc. as they have IP56 marine certification with coated steel baskets; tested for salt-fog, UV & humidity

WALLET-FRIENDLY POLK AUDIO SUBWOOFER - Experience powerful and smooth bass like never before with this compact car subwoofer; designed with cutting-edge technology and premium materials, this affordable sub is the ultimate choice for an audio system

MULTIPLE WIRING OPTIONS - Dual 4-ohm coils on this Polk subwoofer speaker let car audio subwoofers wire parallel at 2-ohm or series at 8-ohm for custom configs and wide system compatibility for those interested in car audio customization

Sold by

Amazon Warehouse

Verified Retailer

Official Amazon outlet for open-box & returned items

  • Backed by Amazon's A-to-Z Guarantee
  • 30-day return policy
  • Ships from Amazon fulfillment centers
  • Price verified on Amazon

Product Details

SKU:
awhd-us-b073jx8npx
Model:
AA9843
Country:
US
ASIN:
B073JX8NPX
UPC:
747192128180

Shopping Smarter

Common questions about buying open-box and refurbished.

Why buy refurbished or open-box?
Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $4 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.
What's the difference between open-box and refurbished?
Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.
Why use OpenBoxFox?
Finding refurbished deals is time-consuming — you'd have to check Amazon Warehouse, Reebelo, Dyson Outlet, and others separately for Polk Audio products. OpenBoxFox aggregates these listings in one place, so you can compare and find the best deal without the legwork. We update pricing daily so you always see current availability and real savings.
Is it safe to buy refurbished?
Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.

Sign in to save items

Save favorites and get alerts when prices drop.

or

We'll email you a link to sign in instantly — no password needed.