---
product_id: 27835884
title: "DB522 DB+ Series 5-1/4\" Coaxial Speaker for Car Audio & Marine"
brand: "polk audio"
price: "S$185"
currency: SGD
in_stock: true
reviews_count: 13
category: "Polk Audio"
url: https://www.desertcart.sg/products/27835884-db522-db-series-5-1-4-coaxial-speaker-for-car
store_origin: SG
region: Singapore
---

# IP56 marine certified splash-proof 22kHz frequency response 300W max power output DB522 DB+ Series 5-1/4" Coaxial Speaker for Car Audio & Marine

**Brand:** polk audio
**Price:** S$185
**Availability:** ✅ In Stock

## Summary

> 🌟 Elevate your soundscape—wherever life takes you!

## Quick Answers

- **What is this?** DB522 DB+ Series 5-1/4" Coaxial Speaker for Car Audio & Marine by polk audio
- **How much does it cost?** S$185 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/27835884-db522-db-series-5-1-4-coaxial-speaker-for-car)

## 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

- • **Marine-Grade Durability:** IP56 certification means UV, salt-fog, and moisture resistance for worry-free adventures.
- • **Powerful 300W Peak Output:** Feel every beat with thunderous clarity, whether on road or water.
- • **Dynamic Balance Technology:** Laser-imaged materials deliver distortion-free, wide sound dispersion.
- • **Built-In Crossover for Crisp Audio:** Seamlessly separates highs and lows for rich, immersive sound.
- • **Effortless Installation with Style:** Includes mounting hardware and sleek grilles to upgrade your ride’s interior instantly.

## Overview

The Polk Audio DB522 DB+ Series 5-1/4" Coaxial Speaker is a versatile, marine-certified speaker designed for both car and boat use. Featuring a polypropylene woofer, 4-ohm impedance, and 300W peak power, it delivers high-fidelity sound with a wide 55Hz-22kHz frequency response. Its Dynamic Balance technology ensures low distortion and broad sound dispersion, while IP56 certification guarantees resistance to water, UV, and salt-fog. Easy to install with included hardware and stylish grilles, it’s perfect for audiophiles seeking premium sound performance on the road or at sea.

## Description

Polk Audio DB522 5-1/4" 2-Way Coaxial Speaker for Car & Marine. These car speakers feature a polypropylene woofer cone and 3/4" silk dome tweeter with built-in crossover, delivering smooth, precise sound for audiophile car owners on road trips. Dynamic Balance technology uses laser imaging to reduce resonance, giving wide response and low distortion. Mounting hardware and bold grilles let users interested in car audio customize any installation. These speakers for boat are rigorously tested against sun, moisture, and extreme temperatures and are certified for marine use, so they double as a reliable marine speaker, and also serve as a great car audio system. Polk Audio’s DB+ Series car subwoofers pair easily, offering value-focused, powerful bass that complements this set.

Review: Great speakers, clear sound, not much bass - Great speakers! I bought these for our fifth wheel because the original ones sounded like tin cans, and I'm glad I spent the money and went with Polk. They fit perfectly in the existing mounting brackets. All I had to do was connect the wires and screw them in. 10 minute job. The audio is crisp, clear, and much louder than the originals. However, don’t expect much bass. They won't match the power and bass of an external speaker like the JBL PartyBox, but they can definitely get loud.
Review: Great Exterior Speaker upgrade on a 2015 Lance 2295 Travel Trailer - Replacing PQN ECO 50 (5" Dia) Waterproof speakers on the exterior of a 2015 Lance 2295 Travel Trailer, which only has 1 1/8" speaker pocket depth. I added the DCO 1" Universal Spacers for 5.25" to 6" speakers, as listed by desertcart as frequently purchased together with these Polk speakers. These spacers' mounting holes matched the existing PQN Speaker holes on the side of the Lance travel trailer and the predrilled holes in the spacers matched the Polk speaker and grill holes perfectly. I used Gorilla Glue's clear silicon caulking during installation to seal the spacer and speaker assembly to the side of the Lance. The spacers and speakers installed easily and look good. If you use the PQN Speaker holes for mounting the spacer and predrilled spacer holes for mounting the speakers, the speaker grill will be slightly angled. If this bothers you then you'll have to drill new mounting holes. The speakers once turned on and letting warm up for a few minutes, provided sharp sound at midrange and above. The bass was also sharp, but just about what you would expect from a 5.25" speaker. Pretty good bass, but it is not the speakers' strong suit. Build quality is impressive especially when compared to the PQN speakers that are used by the manufacturer because the speakers use low wattage and are light weight. The Polk speakers have some weight, due to the good sized magnet. I'm happy with the upgrade and would recommend these speakers.

## Features

- SPEAKER FOR CAR & MARINE - The Polk Coaxial Marine Certified Speaker with peak power, 4-ohm impedance, and a 5-1/4" polypropylene woofer cone is built to reproduce high-quality music for a car audio system or boat speakers applications
- ELEVATE YOUR CAR AUDIO SYSTEM - Door speakers with built-in crossover direct highs & lows to drivers, delivering loud bass; handle 100W RMS & boast 55-22kHz response for high-quality car sound system
- RESONANCE-FREE SOUND - With Dynamic Balance, a Polk Audio proprietary technology, these marine/car speakers use laser imaging to identify the best combination of speaker materials and ensure a distortion-free response with wide sound dispersion
- 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, even tested for salt-fog, UV & humidity
- EASY TO INSTALL - Polk car door speakers provide mounting hardware and stylishly designed grilles that not only enable easy installation but also add a touch of flair to the vehicle's interior, making it an ideal choice for custom installations

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01EZWFNKA |
| Additional Features | Marine Certified |
| Age Range Description | Adult |
| Antenna Location | For Music Players |
| Audio Driver Size | 5.25 inches |
| Audio Driver Type | Dynamic Driver |
| Audio Output Mode | Surround |
| Best Sellers Rank | #11,795 in Electronics ( See Top 100 in Electronics ) #42 in Car Coaxial Speakers |
| Brand | Polk Audio |
| Built-In Media | Literature, Speaker |
| Color | Black |
| Compatible Devices | Car, Boat |
| Compatible with Vehicle Type | Boat |
| Connectivity Protocol | Coaxial |
| Connectivity Technology | Coaxial |
| Control Method | Touch |
| Controller Type | Corded Electric |
| Customer Reviews | 4.6 out of 5 stars 2,115 Reviews |
| Enclosure Material | Polypropylene |
| Frequency Response | 22 KHz |
| Global Trade Identification Number | 00747192127251 |
| Impedance | 4 ohm |
| Is Waterproof | True |
| Item Dimensions D x W x H | 14.2"D x 16"W x 9.7"H |
| Item Weight | 1.74 kg |
| Manufacturer | Polk Audio |
| Model Name | DB522 |
| Model Number | AA9522 |
| Mounting Type | Boat Mount,Coaxial,Top Mount |
| Number Of Circuits | 1 |
| Number of Audio Channels | 2 |
| Number of Items | 2 |
| Number of Power Levels | 1 |
| Power Source | external power source |
| Series Number | 522 |
| Speaker Maximum Output Power | 300 watts |
| Speaker Size | 5.25 inches |
| Speaker Type | Coaxial |
| Subwoofer Connectivity Technology | Wired |
| Subwoofer Diameter | 4.76 inches |
| Tweeter Diameter | 4.76 inches |
| UPC | 747192127251 |
| Unit Count | 1 Count |
| Warranty Description | 1 Year |
| Warranty Type | Limited |
| Water Resistance Level | Water Resistant |
| Wireless Technology | Bluetooth |
| Woofer Diameter | 4.76 inches |

## Product Details

- **Audio Output Mode:** Surround
- **Brand:** Polk Audio
- **Connectivity Technology:** Coaxial
- **Frequency Response:** 22 KHz
- **Speaker Maximum Output Power:** 300 watts

## Images

![DB522 DB+ Series 5-1/4" Coaxial Speaker for Car Audio & Marine - Image 1](https://m.media-amazon.com/images/I/61ZVlmL8AmL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great speakers, clear sound, not much bass
*by D***A on September 17, 2026*

Great speakers! I bought these for our fifth wheel because the original ones sounded like tin cans, and I'm glad I spent the money and went with Polk. They fit perfectly in the existing mounting brackets. All I had to do was connect the wires and screw them in. 10 minute job. The audio is crisp, clear, and much louder than the originals. However, don’t expect much bass. They won't match the power and bass of an external speaker like the JBL PartyBox, but they can definitely get loud.

### ⭐⭐⭐⭐⭐ Great Exterior Speaker upgrade on a 2015 Lance 2295 Travel Trailer
*by L***. on August 3, 2025*

Replacing PQN ECO 50 (5" Dia) Waterproof speakers on the exterior of a 2015 Lance 2295 Travel Trailer, which only has 1 1/8" speaker pocket depth. I added the DCO 1" Universal Spacers for 5.25" to 6" speakers, as listed by Amazon as frequently purchased together with these Polk speakers. These spacers' mounting holes matched the existing PQN Speaker holes on the side of the Lance travel trailer and the predrilled holes in the spacers matched the Polk speaker and grill holes perfectly. I used Gorilla Glue's clear silicon caulking during installation to seal the spacer and speaker assembly to the side of the Lance. The spacers and speakers installed easily and look good. If you use the PQN Speaker holes for mounting the spacer and predrilled spacer holes for mounting the speakers, the speaker grill will be slightly angled. If this bothers you then you'll have to drill new mounting holes. The speakers once turned on and letting warm up for a few minutes, provided sharp sound at midrange and above. The bass was also sharp, but just about what you would expect from a 5.25" speaker. Pretty good bass, but it is not the speakers' strong suit. Build quality is impressive especially when compared to the PQN speakers that are used by the manufacturer because the speakers use low wattage and are light weight. The Polk speakers have some weight, due to the good sized magnet. I'm happy with the upgrade and would recommend these speakers.

### ⭐⭐⭐⭐⭐ Amazing!
*by J***N on July 21, 2026*

I just put these in my TJ Wrangler. What a massive upgrade! They replaced some Sony 4x6s, and they are WAY LOUDER, and WAY BETTER SOUND. The treble is brighter, and more clear. The mid-range is amazing too. I even get some bass coming out of the front speakers now too. If you have a TJ Wrangler, don't hesitate on this upgrade.

## 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 Singapore*
*Store origin: SG*
*Last updated: 2026-10-19*