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Polk Audio db401

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

4.6

(11 reviews)

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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 Size4"
Design2-way
Tweeter DesignDome
Tweeter CompositionSilk-Polymer Composite
Woofer CompositionPolymer/Mica Composite
Woofer SurroundButyl Rubber
Peak Power Handling135 watts
RMS Power Handling45 watts
Sensitivity91 dB
Frequency Response85 - 22000 Hz
Impedance (Per Voice Coil)4 ohms
Shallow Mount InstallationYes
Top-Mount Depth1-13/16"
Bottom-Mount Depth1-15/16"
Cutout Dimensions3-11/16
Speaker GrillesYes
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderSonic Electronix
Customer Review Summary for Polk Audio db401
Average Customer Rating is 4.6 out of 5 stars:
4.6
based on 11 Reviews
Share your thoughts with others:
Rating Distribution:
5 star:
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64%
4 star:
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36%
3 star:
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0%
2 star:
.
0%
1 star:
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0%
what's this?
Average Attributes Rating:
Durability
4.6
Value
4.7
Features
4.2
Design
4.4
Usability
4.6
what's this?
Most Helpful Customer Reviews:
September 28, 2011 Awesome, enough said
Review by
Salvatore from West Nyack, NY
Overall
Durability
Value
Features
Design
Usability
I have owned many sizes of speakers of this same type of speaker. from Polk. From 3-1/2 to the 6x9s. All of them sound great but all of them were running off of the head unit. A lot of people have said to really appreciate these speakers they need to be hooked up to an amp. In this case they are hooked up to a 4 channel JL Audio amp. I have 110 watts per channel going to 4 of these speakers in a custom molded headliner. They are in an 86 Chevy K-10 Pickup so as you know the cab is not that big where sound has to travel far. Clear is not the word they go beyond that. The highs are amazing and I could tell right away the difference between having them hooked up to an amp and not. The lows are ok, I have two 10" Kicker CVRs so I wasn't to worried about the low bass end. LIke I said I owned many of Polk speakers. I had an 80s full size Blazer and that had two 3-1/2 in the dash, two 5-1/4 in the kicker panel and two 6x9 right behind me in the back. These 4 speakers hooked up to the amp blew them all away, hands down. Whether you have an amp or not they are a great speaker any size that Polk makes. I would recommend these to anyone amp or not.
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March 13, 2011 Loud and clear
Review by
J from fresno ca
Overall
Durability
Value
Features
Design
Usability
Very efficient; very very loud, smooth and clear in the vocals range. Treble is not ovepowering but is decent. I can't rate the bass because I have a sub and whatever bass may be coming out is totally washed out obviously.

Bass coming through the speaker does not distort the mids/highs which is a good surprise.

I would highly recommend this to anyone who wants a speaker that will be very good at producing vocals, be it rap/rock/talk radio
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December 16, 2010 Good speakers for the money
Review by
TD from Lenoir City, tn
Overall
Durability
Value
Features
Design
Usability
I updated the speakers on my deck boat. They are a good set of speakers for the money. However, I put a set of JL audios on the front of the boat and no comparison. Of course, the JL's were also 3 times the cost and needed more power to produce the sound. If good sound for cheap is the way you are looking I would highly recommend. If you like cranking the volume up then maybe you might go with a higher quality speaker that can handle more power. Overall i would say 4 out of 5 stars.
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October 13, 2010 great, fast to work with
Review by
samson from enfield, ct
Overall
Durability
Value
Features
Design
Usability
great, fast to work with
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September 6, 2010 Great Sound
Review by
cometa from chula vista, ca
Overall
Durability
Value
Features
Design
Usability
I did a lot of research, and found these to be the best deal for the money. great highs and lows. Cannot go wrong, Strongly recommend, by far better than what you can write about them. Will keep on buying these speakers for the rest of my cars
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View All 11 Reviews for Polk Audio db401
Speaker Wire
Upgrade your factory speaker wire to aftermarket speaker wire and hear the difference! Using thicker gauges, newer technology, and higher quality materials, aftermarket speaker wire is key to upgrading the sound in your car.
 ProductPriceAdd?
20 ft. of 16 AWG KICKER X-Series Speaker Wire20 ft. of 16 AWG KICKER X-Series Speaker Wire
Get high quality sound from Kicker's twisted-pair, true to gauge speaker wire.
$19.99
50 ft. of 14 AWG StreetWires Speaker Cable50 ft. of 14 AWG StreetWires Speaker Cable
Streetwires Super Cable provides a zero-grip insulation for a smooth install as well as true gauge twisted wire construction.
$29.99
50 ft. of 16 Gauge Monster XLN Series Speaker Cable50 ft. of 16 Gauge Monster XLN Series Speaker Cable
Upgrade to clean and clear sound with Monster Cable's Xtra Low Noise (XLN) construction.
$35.00
Sound Dampening Material
Get optimal sound from your new speakers with some high quality sound dampening material. It will keep the road noise out and the music inside the car.
 ProductPriceAdd?
Dynamat Xtreme Speaker KitDynamat Xtreme Speaker Kit
Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!
$21.99
Dynamat Dynaxorb Speaker PakDynamat Dynaxorb Speaker Pak
Revolutionary damping material designed to prevent distortion caused by the back wave of a speaker interfering with the front wave.
$19.99
Dynamat Rubber RollerDynamat Rubber Roller
Install your Dynamat with ease! This heavy duty rubber roller is designed specifically to install your Dynamat products!
$18.99
Ballistic Speaker KitBallistic Speaker Kit
Eliminate speaker distortion, road noise, and rattles with this sound dampening material from Ballistic.
$15.99
Speaker Baffles, Spacers, and Depth Extenders
Mount your speakers in the location that you need with these speaker spacers, extenders, and adapters.
 ProductPriceAdd?
3/4" Depth Extender for 4" Speakers3/4" Depth Extender for 4" Speakers
Add 3/4" of extra space when installing your speakers.
$6.99
Installation, Tools & Accessories
Get all of the tools and accessories to install your new speakers like a professional, or take your car to an expert and have them installed by redeeming professional installation cards.
 ProductPriceAdd?
Door Panel & Upholstery Remover ToolDoor Panel & Upholstery Remover Tool
The ideal tool for removing your car's door panels to replace you speakers!
$11.99
Universal Window Handle Remover ToolUniversal Window Handle Remover Tool
Designed to easily remove the manual window handles without breaking any interior pieces.
$4.99
Universal Wire Puller & GrabberUniversal Wire Puller & Grabber
Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!
$6.99
16-14 AWG Butt Connectors16-14 AWG Butt Connectors
These blue butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers!
$4.99
Tone Generators and Sound Testing Equipment
Optimize your new system's sound quality by testing and calibrating all of your components with these items.
 ProductPriceAdd?
AutoSound 2000 CD-101AutoSound 2000 CD-101
Low frequency test CD
$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High frequency test CD specifically designed for the set-up and evaluation of sound system imaging and placement.
$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
$12.99
Main Product
 ProductPriceAdd?
Polk Audio db401Polk Audio db401$52.99

Product Summary

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

Price Information

$99.99

–$47.00

$52.99

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ITS SAFE!! dont worry! ahaha, this site has unbeatable pricing and amazing service ! I ordered everything on the phone and it was shipped the next day. I received my package 5 days later! I'll be coming back here again! thanks !!!

- Oliver from Vancouver, Canada

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