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DB+ Series 4" Coaxial Speakers with Marine Certification in Black

Polk Audio DB402BLACK

Features

  • High performance audio upgrade that delivers signature quality sound that goes beyond OEM factory systems
  • Marine certified with IP55 rating (water- and dirt-resistant) and tested for salt-fog, UV and humidity
  • Polypropylene and UV tolerant cone with waterproof inner and outer surrounds
  • Simple drop-in installation for any vehicle including cars, boats, ATVs-you name it

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High Performance Upgrade Upgrade from your OEM speaker system toward a bigger, fuller, high-performance sound. The high-grade materials used in our DB+ Series ensure you get an audio system that's designed and engineered to last much longer than your factory setup

Marine Certification The DB+ Series is IP55 rated so it's dirt- & water- resistant. It also has been tested for salt-fog, UV and humidity. A big part of that marine certification also means that each speaker has a non-corrosive plastic grille, a polypropylene UV tolerant cone, waterproof inner and outer surrounds, and stainless steel mounting hardware, ensuring that it's fully protected against the elements.

Polypropylene UV Tolerant Cone Enjoy the peace of mind knowing each speaker cone is built to last, whose clean and polished look won't discolor or degrade over time while giving that important low end sound the high-performance it deserves.

Waterproof Inner and Outer Surrounds Completely blocks dirt, liquid and grime from entering the speaker housing, which helps minimize corrosion and maximize longevity of the entire speaker and its housing basket.

Universal Fit Enjoy a simple drop in installation for any vehicle including cars, boats, ATV's -- you name it. This quick and easy experience also ensures a faster installation process so you can get back to what matters with our great sound always along for the ride.

Zero Tweeter Protrusion Each speaker in the DB+ Series features a shallow tweeter design to ensure your factory speaker grille re-installs with ease for a flush, seamless look.

Features

  • High performance audio upgrade that delivers signature quality sound that goes beyond OEM factory systems
  • Marine certified with IP55 rating (water- and dirt-resistant) and tested for salt-fog, UV and humidity
  • Polypropylene and UV tolerant cone with waterproof inner and outer surrounds
  • Simple drop-in installation for any vehicle including cars, boats, ATVs-you name it
  • High Performance Upgrade
  • Marine Certification
  • Polypropylene UV Tolerant Cone
  • Waterproof Inner and Outer Surrounds
  • Universal Fit
  • Zero Tweeter Protrusion
---Overall---
Total Pieces 2
Warranty
Drivers Warranty 1 years
Original Purchaser Only Yes
---Coaxial Speakers---
Qty Included Pair
Height 0.22" (0.56 cm)
Driver Enclosure Type Marine Certified
Driver Complement
  • (1) 4" (10.16 cm) d (Round) - Mid/Woofer
  • (1) 0.75" (1.91 cm) d (Round) - Tweeter
Cut Out Dimensions
Shape Round
Diameter 4.09" (10.39 cm)
Full-Range Mounting Depth - Top Mount 1.79" (4.55 cm)
Full-Range Mounting Depth - Bottom Mount 2" (5.08 cm)
Grille
Shape Round
Height 0.55" (1.4 cm)
Amplifier
Continuous Power Handling 45W
Peak Power Handling 135W
Audio Quality
Total Frequency Response 60 Hz → 22 Hz
Nominal Impedance 4 ohms
Sensitivity (1 watt @ 1 meter) 90 dB

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Electronics can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.