About the Polk Audio DB 402

Stellar performers
Stellar performers
If you're building your new system on a budget, Polk Audio's DB+ Series speakers are a dynamite value as well as being stellar performers. Their journey to excellence begins with a laser-imaged design that ensures minimal distortion, a smooth response, and incredible sonic detail.
Honed Polk perfection
These DB 402 2-way speakers feature a 4" polypropylene woofer cone with a strong rubber surround for solid playback and resilience under the environmental stress that comes with living in your car doors. A 3/4" silk dome tweeter delivers smooth highs with precision to give you a vibrant soundstage, while a built-in crossover keeps the highs and lows flowing to the proper drivers.
For custom installation
Polk includes mounting hardware, along with boldly designed grilles that add flare to your vehicle's interior if you're doing a custom installation.
Product highlights:
- 2-way car speakers (pair)
- 4" polypropylene woofer cone with rubber surround
- 3/4" silk dome tweeter
- handles up to 45 watts RMS (135 watts peak power)
- frequency range: 60-22,000 Hz
- sensitivity: 90 dB
- top-mount depth: 1-13/16"
- grilles included
- warranty: 1 year
- MFR # DB402
What's in the box:
Polk Audio DB 402 owner's manual
- Two 2-way speakers
- 2 Grilles
- Two 12" Lengths of speaker wire (tinned wire on one end and female quick slides on the other)
- 4 Red plastic butt connectors
- Eight 1" Stainless steel screws
- 8 Stainless steel speed clips
- Owner's manual
- Online registration information
Featured video:
Customer reviews for Polk Audio DB 402
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Average review:
4.5 out of 5 starsCustomer photos
This review was collected as part of a promotion
Pros:
Cons:
More details on the Polk Audio DB 402

Features & specs
General | ||
---|---|---|
Speaker Size | 4 | |
Design | 2-way | |
Tweeter Design | 3/4" Dome | |
Impedance (Ohms) | 4 | |
Tweeter Composition | Silk | |
Woofer Composition | Polypropylene | |
Woofer Surround | Rubber | |
Parts Warranty | 1 Year | |
Labor Warranty | 1 Year | |
Specifications | ||
Sensitivity (1W at 1 meter) | 90 | |
Sensitivity at 2.83 volts | N/A | |
Frequency Response | 60 - 22k Hz | |
Minimum RMS Wattage | --- | |
Maximum RMS Wattage | 45 | |
Peak Power Handling (Watts) | 135 | |
Top-mount Depth (Inches) | 1 7/8 | |
Bottom-mount Depth (Inches) | 2 1/16 | |
Cutout Diameter or Length (inches) | 3 1/2 | |
Mounting Height (Inches) | 0.312 |
Product Research
Features
Dynamic Balance: Dynamic Balance is a proprietary Polk Audio technology using laser imaging to determine what combination of speaker materials create the least amount of resonance. Eliminating resonance in speakers results in a wide, smooth response and low distortion.
4/2 Hole Compatibility: Most 4" factory speakers use four mounting screws, however, in some vehicles, only two are used. The DB402's mounting tabs can be removed, allowing installation in 4-hole or 2-hole applications. Please enter your vehicle information to confirm fit.
Marine Certification: Polk speakers are marine certified, making them a good choice for boats in fresh water, convertibles, motorcycles, ATVs, and other applications where the speaker might get wet. Because they have coated steel baskets and the terminals and crossover components are not covered, we do not recommend using them in salt water environments.
The Polk Audio DB 402 replaces these items

Polk Audio db401
- polymer/mica composite woofer with butyl rubber surround
- 3/4" liquid-cooled silk/polymer composite dome tweeter
- frequency response: 85-22
- 000 Hz
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Customer Q&A
5 questions already asked
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The people at Crutchfield are top notch. I had trouble finding speakers for a 35 year old motorcycle, but your tech guys were very helpful and very thorough in their help. Thanks again.
William from Rayland,Ohio