---
product_id: 255777518
title: "DB402 DB+ Series 4\" Coaxial Speakers with Marine Certification, Black"
brand: "polk audio"
price: "594 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/255777518-db402-db-series-4-coaxial-speakers-with-marine-certification-black
store_origin: PL
region: Poland
---

# Marine-certified salt-fog & UV tested IP55 water & dirt resistance 135W max output power DB402 DB+ Series 4" Coaxial Speakers with Marine Certification, Black

**Brand:** polk audio
**Price:** 594 zł
**Availability:** ✅ In Stock

## Summary

> 🎶 Ride the wave of premium sound, wherever you go!

## Quick Answers

- **What is this?** DB402 DB+ Series 4" Coaxial Speakers with Marine Certification, Black by polk audio
- **How much does it cost?** 594 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/255777518-db402-db-series-4-coaxial-speakers-with-marine-certification-black)

## Best For

- polk audio enthusiasts

## Why This Product

- Trusted polk audio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sleek Black Finish:** Modern, versatile look that complements any vehicle or marine setup
- • **Built for the Elements:** IP55-rated waterproof and dirt-resistant design keeps your vibe alive rain or shine
- • **Marine-Grade Durability:** Salt-fog, UV, and humidity tested to withstand the harshest environments
- • **Signature Sound Upgrade:** Elevate your audio beyond factory basics with crystal-clear 135W power
- • **Effortless Drop-In Installation:** Fits seamlessly in cars, boats, ATVs—upgrade your ride in minutes

## Overview

The DB402 DB+ Series 4" Coaxial Speakers deliver powerful 135W audio with marine-certified durability, featuring IP55 water and dirt resistance plus salt-fog and UV testing. Designed for easy drop-in installation across vehicles and boats, these speakers combine rugged performance with sleek black aesthetics for a superior sound experience on land or sea.

## Description

DB402 DB+ Series 4" Coaxial Speakers with Marine Certification, Black

## 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
- Cut out Diameter - 4.09" Bottom Mount - 2" Top Mount - 1.79"

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Compatible devices | Laptop, Personal Computer, Smartphone |
| Subwoofer diameter | 4 Inches |
| Mounting type | drop in |
| Surround sound channel configuration | 2.0 |
| Colour | Black |
| Included components | Polk Audio Speaker | DB402 DB+ Series 4” Coaxial Speakers with Marine Certification |
| Speaker maximum output power | 135 Watts |
| Item weight | 2.5 Pounds |
| Is waterproof | True |
| Number of Items | 2 |
| Product Dimensions | 30.23 x 29.97 x 30.48 cm; 1.13 kg |
| Item model number | AA9402 |
| Display size | 2 inches |
| Other display features | Wireless |
| Color | Black |
| Item Weight | 1.13 Kilograms |

## Product Details

- **Brand:** Polk Audio
- **Speaker maximum output power:** 135 Watts
- **Frequency response:** 22 KHz
- **Connectivity technology:** Coaxial
- **Audio output mode:** Surround

## Images

![DB402 DB+ Series 4" Coaxial Speakers with Marine Certification, Black - Image 1](https://m.media-amazon.com/images/I/61l5dWMHc3L.jpg)

## Questions & Answers

**Q: will these fit a 2014 dodge ram front dash?**
A: Check your owners manual to see what size speakers are installed originally but they fix my MR2 dash!  Good luck

**Q: what is the outer dimension of the grill?**
A: Check your owners manual or Cruchfield site for fitment

**Q: Will these work for the rear of my 2015 Honda GoldWing?**
A: Use the db522 you might have to modify a little bit but they'll fit in

**Q: What size hole the a drill and how many W will each speaker handle**
A: Thanks for your question. Cutout: 4.09 inches. Rated 45 watts continuous power, 135 watts peak.
World Wide Stereo is 40 years old and a proud authorized Polk Audio dealer.

## Frequently Bought Together

- POLK AUDIO DB402 DB+ Series 4" Coaxial Speakers with Marine Certification, Black
- APIELE 16mm Latching Push Button Switch 12V DC On Off Black Shell with LED Angel Eye Head for 0.63" Mounting Hole with Wire Socket Plug Self-Locking (Blue/Black Shell)
- Polk Audio DB652 DB+ Series 6.5" Coaxial Speaker for Car & Marine, 2-Way Boat & Car Audio Speaker, 40-22kHz Frequency Response, Polypropylene Woofer Cone & 3/4" Silk Dome Tweeter, Black

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**Shop now:** [https://www.desertcart.pl/products/255777518-db402-db-series-4-coaxial-speakers-with-marine-certification-black](https://www.desertcart.pl/products/255777518-db402-db-series-4-coaxial-speakers-with-marine-certification-black)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-27*