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Polk Audio db501

5" 2-way car speakers

Item #: 107DB501

In Stock

37 Reviews



Free Installation gear for most cars

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Polk Audio db501

Give your music new life

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 db501 speakers are engineered to fit 5" openings, featuring 4" polymer/mica woofers with 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.

Whether you've got a factory radio or an aftermarket stereo, these efficient speakers will spice up your daily drive. And Polk certifies their db Series speakers for marine applications, so they're a great choice for your boat, motorcycle, or ATV.

Priced per pair

Product Highlights:

  • 5" 2-way car speakers (pair)
  • 4" 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 two-way crossover network
  • marine-certified for use in boats, convertibles, motorcycles, and ATVs
  • stainless steel mounting hardware
  • power range: 4-45 watts RMS (135 watts peak power)
  • frequency response: 65-22,000 Hz
  • sensitivity: 93 dB
  • top-mount depth: 1-7/8"
  • warranty: 1 year
  • Our 60-day money-back guarantee

Hands-on research

What's in the box?

Download owner's manual

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

Features and Specs

Design 2-way
Tweeter Design 3/4" Dome
Tweeter Composition Silk/Polymer composite
Woofer Composition Polymer/Mica composite
Woofer Surround Butyl rubber
Parts Warranty 1 Year
Labor Warranty 1 Year
Sensitivity 93 dB at 1 watt
Frequency Response 65 - 22k Hz
RMS Power Range (Watts) 4-45
Peak Power Handling (Watts) 135
Impedance (Ohms) 4
Top-mount Depth (Inches) 1 7/8
Bottom-mount Depth (Inches) 1 7/8
Cutout Diameter or Length (inches) 4

Product Research


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 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.

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 verify what’s in the box, 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.

Polk Audio db501 Reviews

Average Customer Review:

37 reviews
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Polk Audio db501

Written By Anonymous, California on Monday, March 16, 2015

Crutchfield Customer Review (What's this?)

Sounds Great! Much better then the 10+ year old factory speakers I had.

impressive speakers

Written By Jason, Kent, Wa on Tuesday, February 17, 2015

Crutchfield Customer Review (What's this?)

I got these speakers hooked up to a Rockford Fosgate P400.4 channel amp and they are a perfect match. No clipping or distortion and they are a huge upgrade to my stock 4" speakers I had in my 1999 toyota avalon. Great product and great price would recommend.

Pros: Sounds good

Cons: None

Great Product

Written By KLo, Jacksonville, FL on Monday, January 05, 2015

Crutchfield Customer Review (What's this?)

Got these for my husband for Christmas for his beloved '91 4-Runner. He installed 4 speakers and a JVC stereo in about 2 hours. My product advisor at Crutchfield was excellent. I would have to say my experience with Crutchfield was the best on-line experience I've ever had.

Pros: Easy to install. Sounds great.

Polk Audio db501

Written By Brian M, Virginia on Thursday, November 20, 2014

Crutchfield Customer Review (What's this?)

Great sound from such a small speaker. 2 4" Polk's and 2 6" Polk's paired with a Pioneer stereo, and the sound is GREAT!!

Pros: Price, Quality and sounds good for a 4" speaker

Cons: NONE

Polk Audio db501

Written By Anonymous, Salt Lake City on Friday, November 07, 2014

Crutchfield Customer Review (What's this?)

They are just what I was looking for. Nice range and easy to install. Fit is perfect for my system and auto.

New bike speakers

Written By Anonymous, Clinton, Maryland on Sunday, November 02, 2014

Crutchfield Customer Review (What's this?)

Great new speakers for my 2005 Honda Goldwing

Pros: Much better performance then the prior speakers

Cons: Not an exact fit but I got them in with the help of a few washers

No comparison

Written By Bobco, Mauldin, South Carolina 29662 on Saturday, October 25, 2014

Crutchfield Customer Review (What's this?)

The speakers, one inch larger than stock fit perfectly.

Pros: Sound

Cons: None

Polk db501

Written By Pete, Concord,NC on Monday, May 26, 2014

Crutchfield Customer Review (What's this?)

Tried these after two different sets of Kickers. Definitely worth the diff in price and got a buy one get second half price. Full sound for a 5" speaker.

Pros: 5" fit my vehicle. Vast improvement over stock. Decent price. Shipped quickly.

Cons: none

good value

Written By Anonymous, Richardson tx. on Sunday, February 09, 2014

Crutchfield Customer Review (What's this?)

Fit well in back doors of frontier. They are a huge improvement over factory. Nice fill speakers well worth the price. Highly recommended.

Pros: Good value nice clean highs and mids.

Cons: None

Pretty good for how small they are.

Written By ParkerH, Utah on Wednesday, January 15, 2014

Crutchfield Customer Review (What's this?)

I am thoroughly impressed by how powerful these speakers are. They have a very clean crisp sound. I replaced the old stock speakers from my '96 Toyota Corolla and these speakers are exponentially better. I know I was replacing almost 20 year old speakers, however I can now hear the music over the road noise of an almost 20 year old car. I am very impressed.

Pros: Clean and crisp sound. Better all around speakers

Cons: Everyone complains about there is no bass but what do you expect from a 5" speaker.

Polk Audio db501 - Perfect Fit and Sound

Written By Patrick A, Chesnee, SC on Monday, January 06, 2014

Crutchfield Customer Review (What's this?)

Easy install, great sound improvement all across the sound spectrum. Will have to install subwoofer for better bass definition, but I am satisfied for now. Speakers are exactly what I expected, they are awesome for the money.

Polk Audio db501

Written By Dennis, Placerville, CA on Wednesday, January 01, 2014

Crutchfield Customer Review (What's this?)

I needed to replace my factory speaker in a older car and the Polk Audio db501 speakers are a great replacement. They bolted into the facory locations without any modifications required. These little speakers sound great.

Pros: Crutchfield said they would fit my application and the speakers sound great for their 5 inch size.

Cons: Frequency response lacking on the low end. I will need to install a sub woofer.


Written By Deagle069, Jacksonville FL on Wednesday, January 01, 2014

Crutchfield Customer Review (What's this?)

Fantastic build quality, Great sound quality , Marine Certified Great upgrade from stock

Pros: Fits pretty good on my 2012 Goldwing. Had to place washers on the screws because the speaker mounts don't extend as far as stock. Other than that couldn't be happier.

Cons: none

Polk Audio db501

Written By Rick, Santa Rosa, Ca on Wednesday, October 16, 2013

Crutchfield Customer Review (What's this?)

Great sound from these little speakers. Perfect for the 92 Accord doors and required no modification.

Excellent speakers at a great price

Written By dsgerlach, louisa, va on Thursday, September 26, 2013

Perfect Upgrade To My Factory System. Wish I Would Have Bought Them Years ago

Pros: Even Install, Great All Around Sound

Cons: n/a

Really nice sound for the price

Written By A Guy With A Toyota, Santa Monica, CA on Saturday, September 14, 2013

Crutchfield Customer Review (What's this?)

After ordering, I worried that these wouldn't be enough for my Avalon, was thinking I should have ordered 6" speakers instead. But I installed these anyhow, and couldn't be happier. Great sound, with good bass response even without a subwoofer.

Pros: Price, ease of installation with existing wiring

Cons: The holes don't completely line up with existing holes from 1997 Avalon factory speakers. But still easy enough to install by drilling new holes.

Dangerously powerful speakers

Written By Drizzy Dre, Evanston on Saturday, June 22, 2013

Crutchfield Customer Review (What's this?)

These speakers pack quite a punch. my 300/4 channel amp from JL Audio may have poisoned my previous speakers with too much power(or they were outright defective), but for the size these little monsters deliver impecable sound quality and durability than can survive a reasonably powered system ( no 1000w amps here). combined with 5.25 inch rear deck speakers of the same brand, i get a beautiful field of sound with power balanced to clarity and succinct sound precision. to say the least these were a steal using the outlet store option with an incredible 40 bucks off the top.

Pros: great loud sound , resilient performance, vibrant quality and clarity. THEY LEAVE VERY LITTLE TO BE DESIRED!!!

Cons: tweeters tweet just a little too hard {noticeable high frequency knocks at sound levels that can damage your hearing anyway].

Polk Audio db501

Written By David, Heron Mt on Wednesday, May 29, 2013

Crutchfield Customer Review (What's this?)

Excellent speakers great bang for the buck

Pros: Great volume very clear sound

Cons: None

Polk DB501

Written By Rich B, Seymour Ct on Tuesday, April 23, 2013

Great sound, for what I paid can't beat it

Pros: Wow what a sound

Cons: none


Written By Keith, Raynham, MA on Wednesday, August 22, 2012

Crutchfield Customer Review (What's this?)

Great sound, great deal, flawless installation and support!

Pros: easy installation, Great sound, Reasonable price

Cons: none

Excellent sound and value

Written By Jerms, Kalamazoo, MI on Tuesday, May 01, 2012

Crutchfield Customer Review (What's this?)

Easily installed in my doors and excellent sound from these speakers!

2004 Nissan Frontier CC install...

Written By CrazyCarl, Northern VA on Thursday, April 26, 2012

Crutchfield Customer Review (What's this?)

Well made speakers that install easily on 2004 Frontier. Edge of screw holes need to be clipped but metal is soft enough standard nippers work great. Included wiring harness for t-shape connector makes rest of install easy.

Speakers are still breaking in but you know anything will be better than the stock foam surround with paper cones.

Pros: Easy to install and sounds good.

Cons: Little bit of customizing needed but nothing anyone with simple tools can't handle.

Good Choice

Written By CJ, Angola, NY on Thursday, March 29, 2012

Crutchfield Customer Review (What's this?)

Installed these in the back doors of my 03 Nissan Frontier and the sound was awesome! I am not using an amp to power them at all. I just have a double-din Pioneer stereo that I also installed myself. Chatted on the online chat with Jenny and she recommended this set plus the 6 1/2" for my front doors. Those sound great too! She also found that it was saving me $$ because when I bought this set the other ones came half off! So it fit my budget and truck just right!!

Pros: Everything good and installation was easy!

Cons: none

Polk does it again!

Written By Roadnuts, CT on Wednesday, January 18, 2012

Crutchfield Customer Review (What's this?)

I bought the Polk DB series speakers for my 93 Volvo 240 sedan. Unfortunately the stock size speakers are only 4" front and 5" rear. I did not expect much sound or volume from such a small package. After doing some light customizing to get them fitting properly, I fired them up powering them only with my new Kenwood X695 radio. Wow! I can't believe how much sound comes from these tiny speakers! I added an MTX powered sub while I was re-doing my stereo for some thump in the trunk. These speakers keep their clarity even at high volumes, and reallyperform wonderfully even with just the Kenwood receiver powering them.

Pros: Great sound even with the small size. (I used 4" and 5" coax) Speakers have an excellent fit and finish. I even used the included grills for my front speakers.

Cons: None!

Good looks, good fit

Written By Jon M, Big Lake, MN on Monday, May 02, 2011

Crutchfield Customer Review (What's this?)

Good, clear sound from these little guys. Installation was easy and with
Crutchfield's instructions, took no time at all. As these are pretty much the only 5"
model speaker, they are sometimes the only choice. Luckily, they are a great

Polk 5" door speakers-Great Improvement!

Written By Elle, Whitley city, KY on Wednesday, April 13, 2011

Crutchfield Customer Review (What's this?)

I am very pleased with my recent speaker purchase. After wonderful customer
service over the phone, I took Tyler's recommendation and selected these.
They were as easy to install as he had said-with great instructions- and sound
sooo much better than my previous ones. I didn't replace the back ones only
because of the age and mileage of my car.
I'll definitely keep purchasing from Crutchfield for their expertise and value

92 Toyota 4Runner - Yes, it does fit!

Written By BrianC, Dallas, TX on Wednesday, March 23, 2011

The "outfit my car" guide says the back panels in my old 4Runner require 5 1/4"
speakers, but when I tried to install them, they were too big and I found the
previous replacements were 4". I measured them and found the hole to be 5
inches!!! NOTE: This is when putting them in the original ported, amped, boxes
that are still in place. These work perfectly! I hope they correct the guide
for all those old 4Runners that are still on the road.

As far as the sound, they are limited on bass, but what do you expect from 5"
speakers. I have matching 4" up front and the sound is clean and accurate; just
as I'd hoped. I can always at a subwoofer later.

Great Little Speakers

Written By Rob, Tampa, FL. on Monday, March 07, 2011

Crutchfield Customer Review (What's this?)

Great sound from these speakers. Even using a 45 watt amp they hold their own. They
are what they are so don't look for tremendous bass - that's what subs are for. Beautiful
sound. Get these and you won't be disappointed.

great speakers

Written By gary, louisiana on Monday, October 18, 2010

Crutchfield Customer Review (What's this?)

these speakers sound very good.i was told by a professional installer he didn't want to
put any after market speakers in my car "too much work and mods" my son and i put
both sides in one hour.maby i'm in the wrong business .the only thing Marty told i did not
need any new speaker conn.well the Polk terminals are alot smaller than my oem
speakers.but i made them work other than that.i will buy another set for the rear.thanks
crutchfield.i've buying from you since the 1980's

Excellent fit, and quality

Written By JohnMc, Between Baltimore and Washington on Monday, June 07, 2010

Crutchfield Customer Review (What's this?)

20 minute installation, and work great.

Perfect for a motorcycle!!!

Written By Jeff, North Central Illinois on Wednesday, April 21, 2010

Crutchfield Customer Review (What's this?)

Installed these in the fairing of my '03 Goldwing in less than 1/2 hour, very
close fit with minimal alterations. The basket on the 501's is a little smaller
than the Honda speakers, so the ends of the holes needed to be clipped out. The
sound is great...much better than the paper-coned junk that Honda
installed from the factory. Now to buy another set for my passenger...

Perfect fit!!!

Written By James, Oregon on Monday, February 08, 2010

Crutchfield Customer Review (What's this?)

These speakers sound great! They were a perfect fit in the front doors of my 95 Toyota Paseo! I purchased them from the Crutchfield Outlet. Saved twenty dollars on them just because the box was open. Speakers were still in perfect condition. Would recomend these speakers!

Polk Audio db501

Written By Anonymous, Madison, IN on Tuesday, October 13, 2009

Crutchfield Customer Review (What's this?)

Pros: Great value. Very easy to install in rear doors of 2004 Nissan Frontier. It took maybe 45 mins. for both sides. I used the Nissan grilles. These speakers sound great paired with the Polk db 651's up front. They are hooked up to a Clarion head unit. No amplification. These speakers sound as good as any aftermarket speakers I've owned (I've bought way too many - anyone remember Cricket?). You can't beat these for the price. I also highly recommend Crutchfield's Outlet. I saved 10 or fifteen bucks just because the speakers had been opened.

Cons: None - do your homework - and you won't be disappointed (Crutchfield's comparison feature is incredibly useful).

May be great, but I'll never know

Written By James, Near Greenville, SC on Tuesday, March 03, 2009

These may be great speakers, buy I'll never know. Contrary to what the Crutchfield site says, they do not fit in the front doors of a 1991 Audi 200 with a factory Bose system.

That car has an amplified speaker enclosure in each front door, with a recess for a 4" speaker with three mounting holes in a triangular arrangement. The Polks have four mounting holes in a square arrangement. There is no way to make a square speaker fit down into the triangular recess.

Removing the entire speaker enclosure is not an option as that would leave no place to mount the speaker.

Great Sounding Speakers

Written By Vincent, Central California on Friday, March 28, 2008

Finally got around to changing the front speakers in my wife's car. She is using a Sony Head Unit CDX-GT320 which puts out 17w RMS per speaker. These 5in speakers replaced the 4in paper stock speakers. A BIG IMPROVEMENT!!! Also, easy to install. The hardest part was I had to drill 4 holes. The total time was less than 2 hours. ( I am Slow)

Polk Audio db501

Written By Ethan, Oklahoma City on Friday, June 08, 2007

Great speakers, easy install. I am pleased with the speakers, Excellent customer service. Happy Customer.


Written By William, Illinois on Thursday, April 05, 2007

Crutchfield Customer Review (What's this?)

Fantastic speakers, with the instruction sheet for installation it went pretty easy. The sound is a HUGE improvement over the factory speakers! They are clear, crisp, with great highs and lows. Could not be more pleased. Thanks again Crutchfield.

Product reviews from the Crutchfield Labs

Video: Polk Audio db Car Speakers
by Ken Nail, J.R. Stoffel

Learn about the features that make Polk Audio db series car speakers a popular choice for improved sound.

What are the Labs?

Get everything you’ll need to enjoy your new Polk Audio db501

Reduce ambient road noise and your vehicle's "rattles," for better sound inside your car.
You'll need speaker wire to connect your speakers to your amp.
Keep your speakers clean and dry. They compress to fit behind your speakers.
These speaker connectors are handy if you're running new speaker wire or if your speakers have oversized terminals.
The right tools will help keep your installation simple and clean.
If your stereo doesn't cut the deep bass from your full-range speakers, a set of bass blockers can help prevent distortion and give you cleaner bass too.
Dynamat 10415 Xtreme Speaker Kit

Dynamat 10415 Xtreme Speaker Kit

Two 10-in. x 10-in. Sheets

Item #: 15410415


Add to Cart
Dynamat 10435 Xtreme Door Kit

Dynamat 10435 Xtreme Door Kit

With four 12" x 36" sheets — covers two doors

Item #: 15410435


Add to Cart
Dynamat SuperLite Tri-Pak

Dynamat SuperLite Tri-Pak

Triple package — 3 sheets, 12 square feet (Model #10612)

Item #: 15410612


Add to Cart
T-Spec 16-gauge Speaker Wire

T-Spec 16-gauge Speaker Wire

Black/white jacket — priced per foot

Item #: 120SW16WB1


T-Spec 12-gauge Speaker Wire

T-Spec 12-gauge Speaker Wire

Black/white jacket — priced per foot

Item #: 120SW12WB1


Stinger PRO Series Speaker Wire

Stinger PRO Series Speaker Wire

Priced per foot (16 Gauge)

Item #: 541SPW516B


Boom Mat 4

Boom Mat 4" Speaker Baffles

Protect your speakers
Regular and slim-line sizes (Regular: 3" depth)

Item #: 696B050310



XTC 4" Speaker Baffles

Protect your speakers (3-7/8" depth)

Item #: 237XT40


Metra Female Quick Slides

Metra Female Quick Slides

An assortment of female quick slide connectors for connecting to speaker terminals

Item #: 120FQS10PK


Metra Crimp Tool and Connectors

Metra Crimp Tool and Connectors

Package contains crimp tool and over 150 pieces

Item #: 120CRIMPKT


Add to Cart
S&G Wire Cutter/Stripper Tool

S&G Wire Cutter/Stripper Tool

Cuts and strips 12- to 22-gauge wire

Item #: 18119100


Add to Cart
S&G Tool Aid 87615

S&G Tool Aid 87615

Window and Door Clip Removal Tool

Item #: 18187615


S&G Tool Aid 87650

S&G Tool Aid 87650

Door Trim and Panel Removal Tool

Item #: 18187650


Bojo Trim Panel Tools

Bojo Trim Panel Tools

Set of 6 pry tools — helps remove interior and exterior trim and door panels

Item #: 126CR6NGL


Add to Cart
Skewdriver Pro SPK4042

Skewdriver Pro SPK4042

Ratcheting straight and offset screwdriver set with 40 bits (Skewdriver Pro with ratchet handle, pictured)

Item #: 180SPK4042


Add to Cart
Spec Tools SQR-200a Squeeze Wrench

Spec Tools SQR-200a Squeeze Wrench

Narrow space ratchet kit with 18 sockets

Item #: 180SQR200A


Add to Cart
Install Bay IB35400

Install Bay IB35400

Premium door panel and trim tool

Item #: 12035400

Add to Cart
Bojo Trim Panel Tools

Bojo Trim Panel Tools

Set of 6 pry tools — helps remove interior and exterior trim and door panels

Item #: 126CR6LNGL


Add to Cart
Install Bay 3320

Install Bay 3320

Auto-ranging digital multimeter

Item #: 1203320

Add to Cart
Posi-Products™ Car Speaker Connectors

Posi-Products™ Car Speaker Connectors

8 connectors for installing car speakers

Item #: 669PP502


Add to Cart
DEI Heat Shrink Tubing

DEI Heat Shrink Tubing

Black 4-foot length (Assortment)

Item #: 696010839


Add to Cart
Bass Blockers

Bass Blockers

Pairs (300 Hz cut-off)

Item #: 127BB300A2


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