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Marine Speakers
Polk Audio DB402 4" 2-Way Coaxial Speaker for Car & Marine The Polk Audio DB402 2-Way Speaker features a 4" polypropylene woofer cone and a 3/4" silk dome tweeter with a built-in crossover, that delivers smooth and precise sound. The speakers' Dynamic Balance technology uses laser imaging to reduce resonance, resulting in a wide response and low distortion. This DB+ Series speaker is versatile, with 4/2 hole compatibility and mounting hardware included. The grilles have a bold design that adds a touch of style to your vehicle's interior, making them a good choice for those who want to customize their installation. Polk Audio tests the DB+ marine speakers rigorously for environmental effects like sun, moisture, and extreme temperature changes. As a result, they're even certified for marine applications, making them a great choice for your boat. Polk Audio's DB+ Series subwoofers are a great value, delivering smooth, powerful bass. So, if you want to upgrade your sound system without breaking the bank, the DB+ series speakers are an excellent option. Polk's advanced technology and engineering bring out the best in class audio with powerful speaker series, smart speakers, and soundbars, allowing you to sit back, relax and listen with your heart.
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Continue shoppingWe offer standard delivery in 2 business days or less.
Delivery time for standard shipping to any of the 48 contiguous U.S. states is 1-2 business days. Delivery time for standard shipping to Alaska, Hawaii, and Puerto Rico is 4-6 business days. Business days include Monday - Friday and exclude UPS holidays.
Note: Delivery time estimates do not apply to large or heavy items that require special shipping (including most TVs), items shipped directly from the manufacturer, or out-of-stock items. Some items that ship from the manufacturer can only be delivered to addresses within the 48 contiguous states.
Map of estimated, standard delivery time to the U.S. and Puerto Rico.