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Polk Audio db401

4" 2-way Car Speakers (Marine Certified) (db 401)

  • 4.6

(16 reviews)

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Price Information

$99.99

–$40.00

$59.99

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Why Shop Sonic?

SONY Marine Gear Giveaway

Customer Testimonial

Your man on the front line that I gave my order to was the best. My order arrived on time. I have since installed the alarm, it works perfect. I guess you could say I am a happy camper. Thanks again everyone.

- Cleve from Pearland, Texas

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Exceptional Quality and Versatility

Step up your vehicles audio performance with Polk Audio's revolutionary db401's. Cutting edge technology has allowed for an efficient speaker that has ability to accurately reproduce music like you have never heard before. A precise balance of materials including the Silk/Polymer Dome tweeter and Mica Cone woofer enable smooth roll-off and quick response at any volume. The rubber surround adds to bass response as well as increases the lifetime of the speaker under any conditions. Being marine certified, the Polk db401's will surprise you with its versatility and ability for use in many applications. The high-efficiency loudspeaker means less power is necessary for the same quality output. The revamped db Series delivers that perfect Polk Audio performance and durability like never before.

Speaker Features:

  • 4" 2-way Speakers (Marine Certified)
  • Power Handling:
    • Peak: 270 watts per pair / 135 watts each
    • RMS: 90 watts per pair / 45 watts each
  • Impedance: 4 ohms
  • Dynamic Balance polymer/mica composite mineral filled cone is stiff yet lightweight for big sound and little distortion
  • 19mm liquid-cooled silk/polymer composite dome tweeter with neodymium magnet for clear and detailed highs
  • Low-mass 2-Layer 25mm Kapton voice coil former is lightweight for high sound output
  • Multi-hole mounting pattern and shallow depth for easy drop-in installations in most cars
  • ABS Grilles, computer optimized and based on exclusive MOMO designs
  • Durable butyl rubber surround won’t fall apart under the stress of extreme temperatures, sunlight or time
  • Pole Plate Heat Sink promotes better heat dissipation for superior power handling and reliability
  • Acoustically inert stamped steel basket
  • Flat Spider for faster, longer excursion linear motion
  • Flexible woven tinsel leads sewn directly into Spider for greater reliability
  • Frequency Response: 85-22,000 Hz
  • 1-year SonicElectronix.com warranty

Priced Per Pair

Product History:

Polk Audio db401 thumbnail
(newest, current model)
Polk Audio db400 thumbnail
(previous model, replaced by Polk Audio db401)
Speaker Specifications
Speaker Size 4"
Design 2-way
Tweeter Design Dome
Tweeter Composition Silk-Polymer Composite
Woofer Composition Polymer/Mica Composite
Woofer Surround Butyl Rubber
Peak Power Handling 135 watts
RMS Power Handling 45 watts
Sensitivity 91 dB
Frequency Response 85 - 22000 Hz
Impedance (Per Voice Coil) 4 ohms
Shallow Mount Installation Yes
Top-Mount Depth 1-13/16"
Bottom-Mount Depth 1-15/16"
Cutout Dimensions 3-11/16 x 3-11/16 
Speaker Grilles Yes
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration 1 year
Labor Warranty Duration 1 year
Warranty Provider Sonic Electronix
Customer Review Summary for Polk Audio db401
Average Customer Rating is 4.6 out of 5 stars:
  • 4.6
based on 16 Reviews
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Rating Distribution:
5 star:
.
.
 63%
4 star:
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 38%
3 star:
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 0%
2 star:
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 0%
1 star:
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 0%
what's this?
Average Attributes Rating:
Durability
  • 4.6
 4.6
Value
  • 4.6
 4.6
Features
  • 4.3
 4.3
Design
  • 4.4
 4.4
Usability
  • 4.6
 4.6
what's this?
Most Helpful Customer Reviews:
February 11, 2013 Perfect Sound!
Review by
Olgive from Tucson, AZ
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
These speakers were a great addition to my van. Fast service at a good price. Good description and fit perfectly.
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October 28, 2012 polk db401
Review by
PHILIP from CHURCHS FERRY, ND
Overall
  • 4.0
Durability
  • 5.0
Value
  • 3.0
Features
  • 4.0
Design
  • 4.0
Usability
  • 5.0
Great weather proof speakers used in pvc pods on a motorcycle with a cerwin vega stealth 220 driving them.
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August 6, 2012 Great Product
Review by
Wilone from Staten Island, NY
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
Highly recommend these speakers sound awesome! Got them installed in my Jeep Wrangler sound bar! A+++
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June 20, 2012 good
Review by
sasha from toronto, ON, Canada
Overall
  • 4.0
Durability
  • 3.0
Value
  • 4.0
Features
  • 3.0
Design
  • 4.0
Usability
  • 3.0
I have 2 of these in the front. They are very good at picking up high sounds and very clear. Not good if you want to crank it up with bass though obviously since its a 4 incher. Not bad for 4 inchers certainly.
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June 5, 2012 Great Speakers!!
Review by
Blake from NV
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
I bought these to mount as a center channel setup in my 1986 Chevrolet Crew Cab's original 4x10 dash slot. It took some modifications and building a custom plate for them, but they fit better and sound better than a single 4x10, which I tried before ordering these. They work great and I achieved what I was looking for.
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View All 16 Reviews for Polk Audio db401
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Main Product
  Product Price Add?
Polk Audio db401 Polk Audio db401 $59.99

Product Summary

Manufacturer: Polk Audio
Model number: db401
UPC: 747192112714
Weight: 3.50 lbs
Internal SKU: db401
Internal product ID: 9118