Expert Service 1-877-289-7664 [Hours]

Oct Call-In Sale

Polk Audio db401

4" 2-Way Marine Certified DB Series Coaxial Car Audio Speakers

In Stock
|

List price $99.99

$55.95

with warranty

You Save: $44.04 (44.04%)

Order within 21 hrs 40 mins to ship 10/31

Arrives by Wednesday, Nov. 5 to zip 07095

Add an Extended Warranty

Fast, Free Shipping

Within the US 48

60-Day Money-Back

Hassle Free Returns

Low Price Guarantee

Seen it for less? Click here

365-Day Coverage

Warranty assistance for a year

Will this fit my ride?

Check Vehicle

In Stock

Arrives by Wed, Nov. 5

Get FAST answers from customers ASK a Question See questions answers

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
  • Also found as: DB-401
  • 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

Series
This is the manufacturer product line of speakers.
db (Polk)
Priced Per
Car Speakers are typically sold in pairs so you will receive 2 speakers for each speaker purchase on speakers marked "Priced Per Pair". If a speaker is marked "Priced Per Each" then the speaker is sold individually and each purchase you make will result in 1 speaker. High-powered tweeters, midrange and full-range pro audio for car speakers are typically sold per each speaker.
Pair
Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
4"
Design
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
2-way
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Dome
Tweeter Composition
Materials such as polypropylene, silk, cloth, and paper are the most common, where as many more recent tweeters are now manufactured with composites such as Aluminum, Titanium, Mylar, and other materials.

PEI is an acronym for "Polyetherimide" which is an amorphous, amber transparent, high-performance thermoplastic.

Silk-Polymer Composite
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Polymer/Mica Composite
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Butyl Rubber
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
135 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
45 watts
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
91 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
85 - 22000 Hz
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

Yes
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
1-13/16"
Bottom-Mount Depth
The depth when installed from the bottom of the mounting surface. Measured from the bottom of the speaker's magnet to the top of the mounting holes on the rim of the speaker.
1-15/16"
Cutout Dimensions
Refers to the dimensions of the hole, measured in inches or millimeters, required to contain the speaker.
3-11/16 x 3-11/16 
Speaker Grilles
A grating or screen of metal or plastic bars or wires, mounted in front of a speaker as protection. If yes, the speakers will include matching speaker grilles. If no, there are no grilles included.
Yes

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
70%
4 Star
30%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.7
Value
4.7
Features
4.4
Design
4.6
Usability
4.7
Doublepumper

Mo

Overall
Durability
Value
Features
Design
Usability
Very nice

September 14, 2014

Good quality speakers, put in a gold wing, they have good clear sound I would buy again

0 of 0 found this helpful

Help our customers find the most helpful reviews

paul

cloverdale, IN

Overall
Durability
Value
Features
Design
Usability
Great Sound

July 7, 2014

I bought 2 pair for my new bat wing fairing on our harley added a amp and i can hear them just fine at 70 mph and my pipes are really loud

0 of 0 found this helpful

Help our customers find the most helpful reviews

Matt

Valparaiso, IN

Overall
Durability
Value
Features
Design
Usability
Great Value, Polk Set

May 6, 2014

2013 Chevy Spark 2LT. I dropped in the db401 and the db461 sets. With the stock MyLink dash, they sound great! No bass as they are 4" speakers, however, the mids/highs are very crisp. Build this set up with a db1240dvc sub, a pa660.4 amp, and you've got a rocking Polk Audio collection that makes your music sound amazing! I mostly listen to rock, but all genres sound great. The materials are super-durable!

0 of 0 found this helpful

Help our customers find the most helpful reviews

Mike Q

Rockford, IL.

Overall
Durability
Value
Features
Design
Usability
Great value!

October 6, 2013

Excellent speakers for someone who needs a good sounding coaxial in a small installation space. Took me quite a bit of customization, but as I have a Toyota Landcruiser, I expected as much. Crisp, accurate highs with very little bass or mid, hey, it's a 5 inch speaker, so dont expect bass, frequency response listed seems accurate, and you really cant go wrong with Polks for under $55.00

0 of 0 found this helpful

Help our customers find the most helpful reviews

Olgive

Tucson, AZ

Overall
Durability
Value
Features
Design
Usability
Perfect Sound!

February 11, 2013

These speakers were a great addition to my van. Fast service at a good price. Good description and fit perfectly.

0 of 0 found this helpful

Help our customers find the most helpful reviews

PHILIP

CHURCHS FERRY, ND

Overall
Durability
Value
Features
Design
Usability
polk db401

October 28, 2012

Great weather proof speakers used in pvc pods on a motorcycle with a cerwin vega stealth 220 driving them.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Wilone

Staten Island, NY

Overall
Durability
Value
Features
Design
Usability
Great Product

August 6, 2012

Highly recommend these speakers sound awesome! Got them installed in my Jeep Wrangler sound bar! A+++

0 of 0 found this helpful

Help our customers find the most helpful reviews

sasha

Canada

Overall
Durability
Value
Features
Design
Usability
good

June 20, 2012

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.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Blake

NV

Overall
Durability
Value
Features
Design
Usability
Great Speakers!!

June 5, 2012

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.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Salvatore

West Nyack, NY

Overall
Durability
Value
Features
Design
Usability
Awesome, enough said

September 28, 2011

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.

0 of 0 found this helpful

Help our customers find the most helpful reviews

J

fresno ca

Overall
Durability
Value
Features
Design
Usability
Loud and clear

March 13, 2011

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

0 of 0 found this helpful

Help our customers find the most helpful reviews

TD

Lenoir City, tn

Overall
Durability
Value
Features
Design
Usability
Good speakers for the money

December 16, 2010

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.

0 of 0 found this helpful

Help our customers find the most helpful reviews

samson

enfield, ct

Overall
Durability
Value
Features
Design
Usability
great, fast to work with

October 13, 2010

great, fast to work with

0 of 0 found this helpful

Help our customers find the most helpful reviews

cometa

chula vista, ca

Overall
Durability
Value
Features
Design
Usability
Great Sound

September 6, 2010

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

0 of 0 found this helpful

Help our customers find the most helpful reviews

Gary

Garden Grove, CA

Overall
Durability
Value
Features
Design
Usability
I think I've found it!

January 27, 2010

I've been searching for the 4" speaker with the most amount of bass output possible for the dash on the fairing of my Honda Pacific Cost 800 motorcycle. I'm using a Boss CH150 amp with MP3 player input. I initially had some Sony's [Sony XS-GF1022X] that were pretty darn good. But I always yearned for a lil bit lower frequency response. They tended to distort a little too early in the volume range when pumping tracks to them with beefy bass output. After purchasing some phenomenal Kenwood "image enhancer" 6 x 9's [Kenwood KFC-6982ie] for my wife SUV I gave it a shot and bought that same model 4" speaker [Kenwood KFC-1082ie]. The highs were astonishingly more crisper (piercing) and more brilliant than the Sony's.. but seemed to have less bass. :S After reading the user reviews here by the Harley dudes, and checking out the specs of these speakers and saw the 45W RMS. I figured I'd give these a try. I wasn't expecting miracles since we're only talking about 4 " speakers. But the low-end output of these was definitely improved over the Sony and the Kenwood models. It still taps-out around the same volume input from my MP3 player (maybe a teensy bit higher)... the difference though is the output is higher, and a noticeable amount more of the low-low's are there. To give you a for instance... these speakers even sounded pretty decent playing [Warren G. - Regulate]. And as an added bonus... they're Marine certified. Which is a good thing for a moto.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Brian

Spokane, Wa.

Overall
Durability
Value
Features
Design
Usability
Great product!

January 12, 2010

Great quality product. Have these speakers on my motorcycle. They sound great.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Lil Lee

Pensacola, FL

Overall
Durability
Value
Features
Design
Usability
Great Speakers, Great Prices

June 15, 2009

Nice speakers, great sound... would recommend to everyone.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Chuck

Lawrence Mass.

Overall
Durability
Value
Features
Design
Usability
SOME OF THE BEST SPEAKERS I'VE EVER HEARD

May 29, 2009

I put these speakers in my Harley Road King faring and even my mechanic said they sound better than HD stock speakers. I would recommend these speakers very highly.

0 of 0 found this helpful

Help our customers find the most helpful reviews

Thomas

Gibbsboro, NJ

Overall
Durability
Value
Features
Design
Usability
Great speakers for 4

August 22, 2008

I bought these speakers thinking they will be better then my stock obviously but not much better. I was wrong these are superior to my stock '98 Avalon speakers. They sound great, especially for the low price!

0 of 0 found this helpful

Help our customers find the most helpful reviews

Richard

Creve Coeur, IL

Overall
Durability
Value
Features
Design
Usability
EXCELLENT CHOICE

February 20, 2008

These are excellent replacement speakers for motorcycle fairings. I run with straight pipes with no baffles and have no problems hearing these speakers. The looks are great I have won many 1st place trophy's at bike shows with these speakers in fairing, I have also purchased another pair for my second bike, they also hold up to water excellently, been through rain even had water sprayed directly into them ( Bike Show, Bike Wash, Blond Girl, need I say more?) and they still work great. BEST SPEAKER FOR THE PRICE!!!!

0 of 0 found this helpful

Help our customers find the most helpful reviews

Accessory Tools and Products

Accessories added

Streetwires 50 ft. of True Spec 16 Gauge Speaker Wire

You need speaker wire to connect your speakers!

Your Price $29.99

Belva 23 ft. of True Spec 16 Gauge Speaker Wire

100% Copper Clad Aluminum, PVC blended jacket for easy installation and high strand count for maximum audio quality

Your Price $12.99

16-14 AWG Butt Connectors

These blue butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers!

Your Price $4.99

16-14 AWG Blue T-Tap Adapters

Allows for fast and easy splicing of wires by easily tapping into the cable.

Your Price $4.49

16-14 AWG Quick Disconnect Connectors

These blue quick disconnect connectors make it easy to connect and disconnect speaker wire your to your new aftermarket speakers!

Your Price $7.99

NVX SDSK2 Speaker Kit

Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!

Your Price $14.99

Dynamat Xtreme Speaker Kit 10415

Enough sound dampening for 2 speakers!

Your Price $17.95

Stinger Roadkill Speaker Kit

Use this to eliminate rattle from your speakers!

Your Price $13.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $14.99

Universal Wire Puller & Grabber

Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!

Your Price $6.99

Xscorpion 9-Piece Nylon Plastic Pry and Chisel Tool Set

Easily removes dash/trims, door clips, panels and pins, rubber grommets and vehicle emblems.

Your Price $14.99

Xscorpion WDCR2 Window and Door Clip Remover

Removes and installs handle and window crank clips.

Your Price $6.99

3 in 1 Wire Quick Splice T-Tap and Butt Connector Crimper + Wire Cutter

Used for cutting copper and aluminum wires up to 8 gauge.

Your Price $21.99

NVX SDRLR1 Sound Dampening Rubber Roller

Install your Sound Dampening with ease! This heavy duty rubber roller is designed specifically to install your NVX products!

Your Price $7.99

3/4" Depth Extender for 4" Speakers

Add 3/4" of extra space when installing your speakers.

Your Price $6.99

XTC 4" Round Foam Speaker Baffles

Creates a tight, acoustic seal behind the speaker to enhance the sound quality.

Your Price $8.99

4" x 6" to 4" Speaker Adapters

Perfect fit for 4" speakers!

Your Price $7.99

Items we think you might want
TS-D1002R thumbnail
Pioneer TS-D1002R

• Peak Power: 220W
• RMS Power: 50W
• 3/4" Large-Sized Soft Dome Tweeter
• Mounting Depth: 2"
• Dual-Layer Injection-Molded Matrix Aramid/Basalt Fiber Composite Cone
• 4 Ohms Impedance
• Sensitivity: 86dB

Your Price $54.99

NSP4 thumbnail
NVX NSP4

• Peak Power: 120W
• RMS Power: 60W
• Real Wattage Certified. Not inflated/overrated.
• 20mm Silk Soft Dome Tweeters
• Mounting Depth: 1-7/8"
• Polypropylene Woofer Cone
• 4 Ohms Impedance
• Sensitivity: 86dB

Your Price $29.99

Browse 1 question and 1 answer
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
compact
Daniel M on Sep 8, 2014

Product Summary

Manufacturer

Model Number

db401

UPC

747192112714

Weight

3.50lbs

Internal SKU

db401

Internal Product ID

9118

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Polk Audio db401

  • Polk Audio db Series Coaxial and Component Car Speakers
  • Sonic Electronix: The X Factor when Shopping Electronics