Polk Audio DB522 DB+ Series 5-1/4" Coaxial Speaker for Car Audio & Marine
- 5-1/4 inch coaxial, 2-way
- 300 watts max, 4 ohm
- Marine certified, water resistant
- 3/4 inch silk dome tweeter, built-in crossover
- Mounting hardware and grilles included
- 1.74 kg, 1 year warranty
Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A pair of five and a quarter inch coaxial speakers certified for marine use and sold for cars too. Hardware and grilles are in the box, but the listing gives no sensitivity or cutout depth.
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ASIN: B01EZWFNKAModel: AA9522Category: Speakers
Overview
Not a component kit, this is a pair of two way coaxial speakers with a polypropylene woofer cone and a silk dome tweeter wired through a built in crossover. Dynamic Balance laser imaging is the maker's way of reducing cone resonance.
The marine testing against sun, moisture and temperature swings is the reason to consider them over a plain car speaker. The listing shows conflicting driver sizes in the spec table, so rely on the title and description sizes.
Who it's for
Boaters and drivers who want a modest sized coaxial pair with grilles and hardware in the box. Owners wanting a published sensitivity or a larger driver should compare other listings.
Pros and cons
- Grilles and hardware included
- Built in crossover
- Silk dome tweeter
- Driver sizes conflict in the spec table
- Sensitivity not given
- Water resistant, not submersible
Performance notes
The polypropylene woofer resists moisture, and the built in crossover routes highs to the silk tweeter so one pair of wires drives both. Output depends on the amplifier or radio behind it, within the stated power rating.
Specifications
| Brand | Polk Audio |
|---|---|
| Model | AA9522 |
| Dimensions & fit | |
| Speaker Size | 5.25 inches |
| Item weight | 1.74 kg |
| Capacity & performance | |
| Speaker Maximum Output Power | 300 watts |
| Construction & materials | |
| Enclosure Material | Polypropylene |
| Compatibility & installation | |
| Mounting Type | Boat Mount, Coaxial, Top Mount |
| Warranty & support | |
| Warranty Description | 1 Year |
| Other details | |
| Speaker Type | Coaxial, 2-way |
| Impedance | 4 ohms |
| Additional Features | Marine certified |
| Water Resistance Level | Water Resistant |
Closest rivals on specs
BOSS Audio Systems CH6530 6.5 Inch Car Speakers- Speaker Size 5.25 vs 6.5 inches (-19%)
Pioneer F-Series TS-F1634R 6.5" 2-Way Coaxial Car Speakers 200W Max- Speaker Size 5.25 vs 6.5 inches (-19%)
- Speaker Maximum Output Power 300 vs 200 watts (+50%)
Frequently asked questions
What is in the box with the Polk DB522?
The built in media field lists literature and speaker, and the description adds mounting hardware and grilles.
Are these component speakers?
No. They are coaxial speakers with a tweeter and built in crossover, sold as a pair.
Which size does the DB522 fit?
The title and description give 5-1/4 inch. The spec table lists conflicting driver sizes, so confirm with the manufacturer if the opening is tight.