About the Polk Audio db400
First and foremost a speaker company, Polk Audio designs and builds speakers that give you top-end performance, even at middle-of-the-road prices. And the db Series' cutting-edge looks, textured woofer cones, and MOMO-inspired, wheel-style grilles add a stylish touch to your ride as well.
The db400 4" speaker features a polymer/mica composite woofer for crisp and clean midbass. The woofer's rubber surround improves performance and lengthens the speaker's life span. You'll enjoy the smooth highs produced by the sweet-sounding silk/polymer dome tweeters.
Instead of the simple high-pass filter found in most car speakers, a more sophisticated 2-way crossover network ensures that woofer and tweeter handle only the appropriate frequencies. The result? Clean sound and accurate imaging. These speakers aren't just limited to use in your car they've passed tough environmental testing that certifies them for marine use.
Product highlights:
- 2-way 4" car speakers
- polymer/mica composite woofer with butyl rubber surround
- liquid-cooled, silk/polymer composite 3/4" dome tweeter
- certified for marine use
- 2-way crossover network
- recommended power range: 4-35 watts RMS
- peak power handling: 105 watts
- frequency response: 85-22,000 Hz
- sensitivity: 91 dB
- top-mount depth: 1-13/16"
- warranty: 1 year
- MFR # AA0405-B
What's in the box:
Polk Audio db400 owner's manual
- Two 2-way speakers
- 2 Grilles
- 8 Self-tapping screws (length=1")
- 8 Speed clips
- Owner's Manual
- Online registration sheet
Customer reviews for Polk Audio db400
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More details on the Polk Audio db400
Features & specs
General | ||
---|---|---|
Speaker Size | ||
Design | 2-way | |
Tweeter Design | 3/4" Dome | |
Impedance (Ohms) | 4 | |
Tweeter Composition | Silk/Polymer composite | |
Woofer Composition | Polymer/Mica composite | |
Woofer Surround | Butyl rubber | |
Parts Warranty | 1 Year | |
Labor Warranty | 1 Year | |
Specifications | ||
Sensitivity (1W at 1 meter) | 91 | |
Sensitivity at 2.83 volts | N/A | |
Frequency Response | 85 - 22k Hz | |
Minimum RMS Wattage | 4 | |
Maximum RMS Wattage | 35 | |
Peak Power Handling (Watts) | 105 | |
Top-mount Depth (Inches) | 1 13/16 | |
Bottom-mount Depth (Inches) | 1 7/8 | |
Cutout Diameter or Length (inches) | 3 11/16 | |
Mounting Height (Inches) | 0.421 | |
Frame Width | 4.026 | |
Frame Length | 4.026 |
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.
Marine Certified: Polk db Series speakers are built to withstand exposure to moisture and UV rays, so they work well in boats and cars.
Woofer Cones: Each speaker features a Dynamic Balance polymer/mica composite mineral-filled cone. The cones are stiff and lightweight for big sound and low distortion.
Butyl Rubber Surrounds: For a smoother response and improved durability, the woofers use butyl rubber surrounds.
Silk/Polymer Composite Tweeters: The 3/4" liquid-cooled, silk/polymer composite tweeters provide clear, detailed highs.
2-way Crossover Network: The built-in 2-way crossover network sends the appropriate frequencies to each driver for cleaner sound and better imaging.
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Customer Q&A
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These 4" coaxles sound awsome. I wasn't sure what to expect because of the small size and the fact i had never used Polk before. But these speaker do sound amazing and so full. I will be putting Polk speakers in all my locations in my car now! I would recommend these in a heart beat.
Sean from PA