1.888.955.6000
 
 
1-888-955-6000
crutchfield.com
Crutchfield

Free Shipping on Everything

60-Day Money-Back Guarantee  |  Lifetime Tech Support

Polk Audio db401

4" 2-way car speakers

Watch video
Zoom
  • Polk Audio db401

    Front

  • Polk Audio db401

    Other

Item# 107DB401 offer details

Item# 107DB401

Review Summary

 
DISCONTINUED
 
This item is no longer available to purchase.
 
Contact us for other options
 
 
 
 
 

By buying this product you'll earn up to 90 Rewards points.

When you sign up for a Crutchfield account, you’ll be enrolled in Crutchfield Rewards. You’ll earn one point for every dollar you spend on gear from us. You can turn your points into Rewards Cards that you can use toward future purchases. You can sign up for an account now, or after you complete your purchase (you’ll get credit for the points either way).

 
Polk Audio

Our take on the Polk Audio db401

by Leigh Schoettinger

Good music becomes great when you hear it through Polk's db Series car speakers. Polk engineers use laser imaging to determine the ideal combination of speaker materials and design to eliminate distortion. The resulting technology produces speakers with smooth frequency response, sharp detail, and the ability to play music at high volumes without strain.

Polk's db401 speakers feature 4" woofers made from a polymer/mica composite and durable rubber surrounds that won't fall apart under stress from heat, moisture, or time. Liquid-cooled 3/4" silk/polymer dome tweeters use powerful Neodymium magnets to deliver precise high-frequency reproduction, enveloping you in bright musical detail. The built-in two-way crossovers keep the high and low frequencies flowing to the proper drivers for seamless, efficient audio.

These speakers feature stainless steel mounting hardware and db-design grilles that will add a stylish touch to your car's interior.

Highlights:

  • 4" 2-way car speakers (pair)
  • Dynamic Balance polymer/mica composite woofer with butyl rubber surround
  • 3/4" liquid-cooled silk/polymer composite dome tweeter
  • Neodymium tweeter magnet
  • Kapton voice coil
  • built-in 2-way crossover network
  • db-design grilles
  • stainless steel mounting hardware
  • power range: 4-45 watts RMS (135 watts peak power)
  • frequency response: 85-22,000 Hz
  • sensitivity: 91 dB
  • top-mount depth: 1-7/8"
  • warranty: 1 year
  • Our 60-day money-back guarantee
Shop all Polk Audio 4" Speakers

    Priced per pair

     

    Hands-on research from the Crutchfield Labs (what are the Labs?)

    Features and Specs

    Features and Specs
    General
    Design
    Loading...
    2-way
    Tweeter Design
    Loading...
    3/4" Dome
    Tweeter Composition
    Loading...
    Silk/Polymer composite
    Woofer Composition
    Loading...
    Polymer/Mica composite
    Woofer Surround
    Loading...
    Butyl rubber
    Parts Warranty
    Loading...
    1 Year
    Labor Warranty
    Loading...
    1 Year
    Specifications
    Sensitivity
    Loading...
    91 dB at 1 watt
    Frequency Response
    Loading...
    85 - 22k Hz
    RMS Power Range (Watts)
    Loading...
    4-45
    Peak Power Handling (Watts)
    Loading...
    135
    Impedance (Ohms)
    Loading...
    4
    Top-mount Depth (Inches)
    Loading...
    1 7/8
    Bottom-mount Depth (Inches)
    Loading...
    1 7/8
    Cutout Diameter or Length (inches)
    Loading...
    3 11/16

    Product Research

    Product Research
    What's in the box?

    Download owner's manual

    • Two 2-way speakers
    • 2 Grilles
    • 8 Self-tapping screws (length=1")
    • 8 Speed clips
    • Owner's Manual (Eng/Span/Fren /Ger/Ita/Port)
    • Online registration sheet

    Our Product Research Team

    At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

    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.

    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.

    Kapton Voice Coil Former: The low-mass, 2-layer Kapton Voice Coil former is lightweight for high sound output. Kapton's high melting temperature (725°F) ensures high power handling and longer reliability.

    Silk/Polymer Composite Tweeters: The 3/4" liquid-cooled, silk/polymer composite tweeters provide clear, detailed highs. The tweeters use neodymium magnets.

    2-way Crossover Network: The built-in 2-way crossover network sends the appropriate frequencies to each driver for cleaner sound and better imaging.

     

    Product Reviews

    Review this product
    Great Gear Giveaway rewards card

    Submit a review and you will be entered to win a $150 gift card

    Crutchfield Great Gear Giveaway Official Sweepstakes Rules

    Reviews for the Polk Audio db401

    Average Customer Review:

    30 people say:

    Review this product:

    Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

    Your email won't be visible. Please use the email address that is associated with your order.
    (e.g., JohnD) Your review will be signed using the display name and location
    (e.g., Charlottesville, VA)

    Click on a star to rate the overall product on a scale of 1-5
    1500 characters left
    Attach a YouTube Review
    Crutchfield Video Review Guidelines
    • Only submit videos that you made or are authorized to use.
    • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
    • Please see our Review Guidelines for more information.
    500 characters left
    500 characters left
    Filter by rating:
    Sort by:
    Showing: 1-20 of 30
    View page: 12 »
    5 out of 5

    Excellent sound and value

    Written By JohnT, Watertown NY on Sunday, September 02, 2012
    Crutchfield Customer Review (What's this?)
     
    Outstanding construction, fit and finish. Quality speakers that out perform their small size. I have the first set mounted in the fairing of my touring motorcycle and hooked to the stock stereo. As is to be expected there is not over whelming bass, they are 4" coaxial after all. However they present a very clear and balanced sound in an unfriendly environment for music. (Open air, wind and traffic noise.) They also fit MUCH better and sound MUCH better than the 4" Bazookas that they replaced.
    Pros:
    Respectable bass, balanced sound, great fit and finish
    Cons:
    None
    Was this review helpful?    Yes | No
     
    5 out of 5

    Great little speakers

    Written By Ed F., Hammonton,NJ on Sunday, August 05, 2012
    Crutchfield Customer Review (What's this?)
     
    Great speakers for my motorcycle fairing. Great sound. I replaced automobile type speakers with these weather resistant speakers. Easy installation, and now, I can hear my music as I ride.
    Was this review helpful?    Yes | No
     
    5 out of 5

    water proof speakers

    Written By Bob, South Texas on Wednesday, August 01, 2012
    Crutchfield Customer Review (What's this?)
     
    installed on a jet ski, ( read constantly WET) so far have 7 wet days and speakers sound fine. Still not sure about how long they will last, but so far, they get a 5 STAR RATING
    Was this review helpful?    Yes | No
     
    5 out of 5

    love them

    Written By Karl, Clifton, NJ on Wednesday, August 01, 2012
    Crutchfield Customer Review (What's this?)
     
    Installed them in my boat - the sound is great and the quality if the speaker is very solid
    Was this review helpful?    Yes | No
     
    4 out of 5

    decent for price and size

    Written By Old Mercedes, Utah on Saturday, June 23, 2012
    Installed in a 1987 Mercedes-Benz 300D-T
    Crutchfield Customer Review (What's this?)
     
    Speakers are really clear but distort easy if bass settings are very high. Great if your using for a tweeter, unfortunately my care only had room for this size in the front. Otherwise a 5.25 would sound much better.
    Pros:
    small and clear
    Cons:
    don't turn up the bass
    1 out of 1 people found this helpful
    Was this review helpful?    Yes | No
     
    5 out of 5

    Polk Audio db401

    Written By Anonymous, Huntington, CT on Sunday, June 03, 2012
    Installed in a 1999 Jeep Wrangler
    Crutchfield Customer Review (What's this?)
     
    Sound great and easy to install!
    Was this review helpful?    Yes | No
     
    5 out of 5

    Polk Audio db401

    Written By Ron N, Galax,Va on Sunday, October 02, 2011
    Installed in a 1987 Volvo 240 Series
     
    Bought these to replace the busted Pyle speakers in the door. Never really got much sound from the front mounted 4 inch speakers, so the system was heavily biased towards the rear 6x9's and the trunk mounted sub. But these speakers really kick! Now I use a neutral setting front to back so I can hear these. A little pricey for 4" speakers, but definately worth every cent.
    2 out of 2 people found this helpful
    Was this review helpful?    Yes | No
     
    5 out of 5

    Awesome Speakers

    Written By Jason, Rochester, NY on Saturday, September 17, 2011
     
    Searched all around the web, and in stores locally in Rochester. A friend pointed out this website, which helped me in so many ways. I read the reviews on these exact speakers and was extremely impressed by what others were saying. I bought them, couldnt resist the price, and installed them in my 94 Saab 9000. They sound absolutely ridiculous. i dont have an amp set up in line with the Polks, but they dont even need an amp, their that good. These babies crank out an impressive amount of sound for 4" speakers, best i could find online. Along with my Rockford 6x9 and the two Rockford 10" subs, my car sounds rediculous. the clarity you get out of these speakers is incredible. I would refer all of my friends to this product for sure.
    3 out of 3 people found this helpful
    Was this review helpful?    Yes | No
     
    5 out of 5

    If you have to buy 4in speakers

    Written By Wayne, Georgetown KY on Thursday, June 30, 2011
     
    I have these in the dash of my Jeep on a 4 channel 60RMS amp and they get loud they are with 2, 5 1/4 DB polks and a 10in kicker and I can blow out your ear drums with the top down on my jeep. Just remember they are 4in Highs are great and clear mids are okay no lows at all.
    2 out of 2 people found this helpful
    Was this review helpful?    Yes | No
     
    5 out of 5

    if you HAVE to have 4 inch speakers Buy these!

    Written By huntr, West Linn, Oregon on Wednesday, June 22, 2011
    Installed in a 1998 Suzuki Sidekick
    Crutchfield Customer Review (What's this?)
     
    im running a 60 watt per channel amp to 4 of these anda 10 inch kicker cvr 10 inch sub in my 98 suzuki sidekick and my system sounds much bigger than it is. could not be happier, thank you Advisor Ann for steering me to this fine Polk Product!!!
    Was this review helpful?    Yes | No
     
    5 out of 5

    WOW under $100

    Written By KatieM, Colorado Springs, CO on Tuesday, June 21, 2011
    Installed in a 2005 Jeep Wrangler Unlimited
    Crutchfield Customer Review (What's this?)
     
    Installed in the dash of my 2005 Jeep Wrangler Unlimited. I can't believe how much I can hear with the top off (and doing 70-ish mph). I can turn them up as loud as I want, and not lose any sound quality. They fit perfectly in the dash and installing them took less than 30mins, and I've never installed speakers before. Thank you to my "expert advisor" Chuck for pointing these out to me. I'm very happy!!
    4 out of 4 people found this helpful
    Was this review helpful?    Yes | No
     
    5 out of 5

    Blows comprable sizes away

    Written By Mikey, Houston Texas on Thursday, May 19, 2011
    Crutchfield Customer Review (What's this?)
     
    Had Kenwood speakers in my motorcycle fairing and replaced them with the Polk speakers. I have extremely loud exhaust pipes. My ears are still ringing from the speakers. Hardly no distortion at high volume. Well worth the money.
    1 out of 2 people found this helpful
    Was this review helpful?    Yes | No
     
    4 out of 5

    Well worth it...

    Written By Holtz, Cincinnati, OH on Friday, March 25, 2011
     
    All in all these are a great set of speakers. For the price, there aren't too many
    other brands that can beat them. Clear highs, great output and they get louder
    than h*ll. I'd definitely buy these again. They sound great in the dash of my 02
    Jeep Wrangler (with the top down at 70mph) so I can only imagine how they
    would sound as an enclosed speaker in a pod box or a door panel.
    6 out of 6 people found this helpful
    Was this review helpful?    Yes | No
     
    5 out of 5

    "Outfit my car" guide is wrong for 92 4Runner

    Written By BrianC, Dallas, TX on Wednesday, March 23, 2011
     
    The guide says they don't fit, but indicates the back doors and rear panels.
    These ACTUALLY fit perfectly in the stock ported boxes in front dash panels.

    They also sound great compared to the replacement 3" Rockford Fosgates that were
    in there!
    1 out of 1 people found this helpful
    Was this review helpful?    Yes | No
     
    5 out of 5

    Great Sound

    Written By Ryan H., Houma, LA on Sunday, March 13, 2011
    Installed in a 2001 Jeep Wrangler
    Crutchfield Customer Review (What's this?)
     
    I have these installed in the dash of my Jeep Wrangler. These speakers have
    great sound and at a great price. They worked perfectly during this years
    amazing Mardi Gras season when I had the top down and the doors off!!!!
    Highly suggest these speakers. I have these speakers partnered with a set of
    Bass Blockers so I could let my stereo push them instead of having to get an
    amp to prevent them from distorting at the higher volumes! No complaints with
    these great speakers!
    5 out of 5 people found this helpful
    Was this review helpful?    Yes | No
     
    5 out of 5

    Awesome factory replacements

    Written By Brad C, Santa Rosa, CA on Wednesday, January 05, 2011
    Installed in a 1999 Pontiac Grand Am
     
    absolutely awesome! just replaced the factory speakers in my Grand Am and these are
    bangin! not much bass from these little guys but i run 2 12's in the trunk so bass isnt a
    problem. the highs are crystal clear and good mids. definitely an improvement over stock
    and for the price you cant beat them! Polk has just made me a lifetime customer!
    1 out of 1 people found this helpful
    Was this review helpful?    Yes | No
     
    5 out of 5

    Great Stock Replacements...Can't beat the price

    Written By Chris B, Ft. Lauderdale, FL on Thursday, December 02, 2010
    Installed in a 2006 Subaru Impreza WRX STi
    Crutchfield Customer Review (What's this?)
     
    Paired these with a new HU and the 6.5 inchers from the same series for my STI. You can't
    expect alot from 4" speakers, but these definitely impress! Great SQ through out the whole
    spectrum. Bottom end is a little lacking, but come on, they are 4" speakers. Great for the
    price. Easy install, Crutchfield included everything with great shipping speed and awesome
    customer service. These are a great option to replace stock speakers. You won't be
    disappointed.
    1 out of 2 people found this helpful
    Was this review helpful?    Yes | No
     
    5 out of 5

    Great rear door speakers.

    Written By alex, Bozeman, MT on Monday, November 15, 2010
    Installed in a 2007 Subaru Impreza 2.5i
    Crutchfield Customer Review (What's this?)
     
    For my installation, I had to find suitable rear-door speakers for my '07
    Impreza. I was able to fit Polk MM6501's up front, so I just needed some
    "filler" sound for the back. These things fit the bill. Running them with 800Hz
    HPF's, I'm surprised how hard you can hit them for such little speakers.
    3 out of 3 people found this helpful
    Was this review helpful?    Yes | No
     
    5 out of 5

    Great Speaker

    Written By Anonymous, Anderson, IN on Saturday, June 26, 2010
    Installed in a 2002 Toyota 4Runner
    Crutchfield Customer Review (What's this?)
     
    For what the speaker is it can't be beat. My only complaint is that the crutchfield website suggested a 4" speaker for the rear doors of a 2002 Toyota 4 Runner and the door could easily accomidate a 5 1/4 " - 5 1/2" ( I would have Srung For The Larger Speaker)
    Was this review helpful?    Yes | No
     
    5 out of 5

    nice upgrade

    Written By Anonymous, florida ,broward county on Monday, June 07, 2010
    Installed in a 2000 Lexus GS300
    Crutchfield Customer Review (What's this?)
     
    replace my kenwoods with the polk's and what a differnce compared to the kenwood
    speaker's. nice clean sound and will buying more crutchfield products, shipping was
    great andd install was on the money.Thanks crutchfield you have a life time customer.
    Was this review helpful?    Yes | No
     
    1-20 of 30 >>

    Accessories

    Add accessories for the Polk Audio db401

    Reduce ambient road noise and your vehicle's "rattles," for better sound inside your car. See all categories & accessories

    Dynamat 10415 Xtreme Speaker Kit Two 10-in. x 10-in. Sheets
    27 people say 
    Your Price: $26.99
    Add to Cart
    Dynamat 10435 Xtreme Door Kit With four 12" x 36" sheets — covers two doors
    21 people say 
    Your Price: $99.99
    Add to Cart
    Dynamat SuperLite Tri-Pak Triple package — 3 sheets, 12 square feet (Model #10612)
    7 people say 
    Your Price: $69.99
    Add to Cart
    Boom Mat 4" Speaker Baffles Protect your speakers
    Regular and slim-line sizes (Slim-line: 2-1/4" depth)
    2 people say 
    Your Price: $7.99
    Add to Cart
    XTC 4" Speaker Baffles Protect your speakers (Slim-line: 2-5/8" depth)
    10 people say 
    Your Price: $6.99
    Add to Cart
    StreetWires 14-gauge Super Cable™ Speaker Wire Translucent blue jacket — priced per foot (Clear)
    3 people say 
    Your Price: $1.49
    Add to Cart
    StreetWires 16-gauge Super Cable™ Speaker Wire Blue jacket — priced per foot
    17 people say 
    Your Price: $0.49
    Add to Cart
    StreetWires 12-gauge Ultra Cable™ Speaker Wire Blue/copper jacket — priced per foot
    56 people say 
    Your Price: $1.99
    Add to Cart
    StreetWires 14-gauge Ultra Cable™ Speaker Wire Blue/copper jacket — priced per foot
    30 people say 
    Your Price: $1.49
    Add to Cart
    7 people say 
    Your Price: $39.99
    Add to Cart
    Stinger PRO Series 16-gauge Speaker Wire Black jacket — priced per foot
    7 people say 
    Your Price: $0.39
    Add to Cart
    Metra Female Quick Slides An assortment of female quick slide connectors for connecting to speaker terminals
    5 people say 
    Your Price: $1.99
    Add to Cart
    Metra Crimp Tool and Connectors Package contains crimp tool and over 150 pieces
    5 people say 
    Your Price: $19.99
    Add to Cart
    Posi-Products™ Car Speaker Connectors 8 connectors for installing car speakers
    10 people say 
    Your Price: $11.99
    Add to Cart
    S&G Wire Cutter/Stripper Tool Cuts and strips 12- to 22-gauge wire
    5 people say 
    Your Price: $19.99
    Add to Cart
    S&G Tool Aid 87615 Window and Door Clip Removal Tool
    11 people say 
    Your Price: $7.99
    Add to Cart
    S&G Tool Aid 87650 Door Trim and Panel Removal Tool
    53 people say 
    Your Price: $9.99
    Add to Cart
    Bojo Trim Panel Tools Set of 6 plastic tools — helps remove interior and exterior trim and door panels
    20 people say 
    Your Price: $24.99
    Add to Cart
    DEI Heat Shrink Tubing Black 4-foot length (Assortment)
     
    Your Price: $24.99
    Add to Cart
    Skewdriver Pro SPK4042 Ratcheting straight and offset screwdriver set with 40 bits (Skewdriver Pro with ratchet handle, pictured)
    6 people say 
    Your Price: $49.99
    Add to Cart
    Spec Tools SQR-200a Squeeze Wrench Narrow space ratchet kit with 18 sockets
    1 person says 
    Your Price: $49.99
    Add to Cart
    InstallCard: Speaker or Subwoofer Prepaid installation card — for one pair of speakers or a subwoofer
    13 people say 
    Your Price: $54.99
    Add to Cart
    Bass Blockers Pairs (300 Hz cut-off)
    51 people say 
    Your Price: $9.99
    Add to Cart

    Smart people protect with SquareTrade- The best warranty at the best price

    SquareTrade Warranty
    SquareTrade Warranty 3 Year Warranty
    Your Price: $13.99
    Add to Cart

    In business since 1999, SquareTrade is the largest independent warranty provider in the U.S.

    100% parts and labor - no deductibles

    All mechanical and electrical failures covered, includes normal wear and tear.

    Your item's repaired or the full item price returned withing 5 days

    Runs concurrent with manufacturer's warranty

    Rated 5-stars by consumers

    For a more in-depth review and enhanced detailed information on the Polk Audio db401, please visit the Crutchfield website product page (/S-9zm7EQxIntg/p_107DB401/Polk-Audio-db401.html ).

    Get live, personalized service from an expert

    Crutchfield Advisor: Hi there.

    Crutchfield Advisor: We're happy to answer questions or provide additional info about this item.

    Advisors also available at 1-888-600-3963

    Sorry, the Polk Audio db401 is no longer available for purchase.

    • Front

      Polk Audio db401
    • Other

      Polk Audio db401