---
product_id: 255777508
title: "DB522 DB+ Series 5.25\" Coaxial Speakers with Marine Certification, Black"
brand: "polk audio"
price: "¥37969"
currency: JPY
in_stock: true
reviews_count: 5
category: "Polk Audio"
url: https://www.desertcart.jp/products/255777508-db522-db-series-5-25-coaxial-speakers-with-marine-certification
store_origin: JP
region: Japan
---

# IP56 marine certified splash-proof 5.25" polypropylene woofer + 3/4" silk dome tweeter 300W peak power DB522 DB+ Series 5.25" Coaxial Speakers with Marine Certification, Black

**Brand:** polk audio
**Price:** ¥37969
**Availability:** ✅ In Stock

## Summary

> 🌊🔊 Elevate your soundscape—wherever the adventure takes you!

## Quick Answers

- **What is this?** DB522 DB+ Series 5.25" Coaxial Speakers with Marine Certification, Black by polk audio
- **How much does it cost?** ¥37969 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/255777508-db522-db-series-5-25-coaxial-speakers-with-marine-certification)

## 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, Bold Design:** Upgrade your ride or boat with stylish grilles that blend performance with premium aesthetics.
- • **Marine-Grade Durability:** IP56 splash-proof and salt-fog tested to keep your music alive through sun, spray, and storms.
- • **Plug & Play Versatility:** Easy installation with included mounting hardware—perfect for cars, boats, ATVs, and more.
- • **Thunderous 300W Peak Power:** Feel every beat with crystal-clear, room-filling sound that dominates both road and waves.
- • **Precision Audio Engineering:** Dynamic Balance tech reduces distortion for smooth highs and deep, punchy bass.

## Overview

The Polk Audio DB522 DB+ Series 5.25" Coaxial Speakers deliver powerful 300W peak sound with marine-certified IP56 splash-proof protection. Featuring a polypropylene woofer and silk dome tweeter with Dynamic Balance technology, these speakers ensure clear, distortion-free audio in harsh environments. Designed for versatile use in cars, boats, and ATVs, they combine rugged durability with sleek styling and easy installation, making them the ultimate upgrade for audiophiles who demand performance on land and sea.

## Description

Polk Audio DB522 5-1/4" 2-Way Coaxial Speaker for Car & Marine The Polk Audio DB522 2-Way Speaker features a 5-1/4" 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 mounting hardware included. The included 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.

Review: Put in the rear of my ford falcon wagon. Very very good sound upgrade for the price. Sounds better than The SCA range at this price point. Powered fine by the stock head unit.
Review: Excellent clear bassy sounds from this speakers

## Features

- POWERFUL SPEAKER FOR CAR & MARINE - The Polk DB522 2-Way Coaxial Marine Certified Speaker with 300W peak power, 4-ohm impedance, 5-1/4" polypropylene woofer cone, 3/4" silk dome tweeter & a strong rubber surround is built to reproduce high-quality music
- SPLASH-PROOF SOUND SYSTEM - Polk DB+ series speakers give thunderous sonic output in freshwater boats, motorcycles, ATVs, and others, as they have IP56 marine certification with coated steel baskets. They are even tested for Salt-fog, UV & Humidity
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01EZWFNKA |
| Best Sellers Rank | #29,374 in Electronics ( See Top 100 in Electronics ) #76 in Coaxial Car Speakers |
| Colour | Black |
| Compatible devices | Vehicle Audio Systems |
| Control method | Touch |
| Department | Coaxial Speakers |
| Impedance | 4 Ohms |
| Included components | Polk Audio Speaker | DB522 DB+ Series 5.25” Coaxial Speakers with Marine Certification |
| Is waterproof | true |
| Item model number | AA9522 |
| Item weight | 1.74 Kilograms |
| Manufacturer | Polk Audio |
| Material | Polypropylene |
| Model name | Marine Certified |
| Mounting type | Coaxial,Top Mount,Boat Mount |
| Number of Items | 2 |
| Power source | external power source |
| Product dimensions | 36.1D x 40.6W x 24.6H centimeters |
| Recommended uses for product | For Music Players |
| Speaker size | 5.25 Inches |
| Speaker type | Woofer |
| Special features | Marine Certified |
| Subwoofer diameter | 4.76 Inches |
| Surround sound channel configuration | 2.0 |
| Unit count | 1 Count |
| Warranty type | Limited |
| Wireless communication technologies | Bluetooth |

## Product Details

- **Audio output mode:** Stereo
- **Brand:** Polk Audio
- **Connectivity technology:** Coaxial
- **Frequency response:** 22 KHz
- **Speaker maximum output power:** 300 Watts

## Images

![DB522 DB+ Series 5.25" Coaxial Speakers with Marine Certification, Black - Image 1](https://m.media-amazon.com/images/I/61ZVlmL8AmL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***. on 16 January 2022*

Put in the rear of my ford falcon wagon. Very very good sound upgrade for the price. Sounds better than The SCA range at this price point. Powered fine by the stock head unit.

### ⭐⭐⭐⭐⭐ Review
*by I***G on 26 June 2021*

Excellent clear bassy sounds from this speakers

### ⭐⭐⭐⭐⭐ Review
*by L***N on 10 July 2024*

Diese Lautsprecher sind einfach top. Super Klang.

## Frequently Bought Together

- Polk Audio DB522 DB+ Series 5-1/4" Coaxial Speaker for Car & Marine, 2-Way Boat & Car Audio Speaker, 55-22kHz Frequency Response, Polypropylene Woofer Cone & 3/4" Silk Dome Tweeter, Easy Installation
- 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
- 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)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-16*