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Polk Audio DXi571

5"x7"/6"x8" 2-way car speakers

Item #: 107DXI571

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38 Reviews

Free Installation gear for most cars

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Polk Audio DXi 571

Enjoy your music even more

Go ahead, circle the parking lot till your favorite song is over. Polk Audio's DXi Series speakers will make you want to hit "repeat" so you can hear it all over again. Polk uses a high-tech approach and ideal materials to give your tunes an exciting new edge.

Precision woofers showcase your music

The DXi571 speakers feature 5"x7" polymer composite cones that are lightweight and stiff, so they can create a big sound with minimal distortion. Polk analyzes their drivers in motion to ensure that cone movement is even and precise. Polk also uses laser imaging to craft woofer cones that are perfectly balanced to resist distortion-causing resonances.

Aluminum dome tweeters broadcast detailed sound

Each 3/4" aluminum dome tweeter brings out the high-frequency highlights in your music, so you'll hear every detail of your most enthralling musical moments. From an intensely quiet acoustic pluck to the most exhilarating electric solo, it'll be a very entertaining ride.

Product Highlights:

  • 2-way car speakers (pair) for 5"x7" and 6"x8" openings
  • polymer composite woofer with butyl rubber surround
  • 3/4" aluminum dome tweeter
  • power range: 2-60 watts RMS (180 watts peak power)
  • frequency response: 52-22,000 Hz
  • sensitivity: 93 dB
  • top-mount depth: 2-3/16"
  • warranty: 1 year
  • Our 60-day money-back guarantee

Why replace your car's original speakers?

The speakers that originally came in your car were made from inexpensive materials, designed to create acceptable sound at the lowest possible cost to the manufacturer. If you love music, you deserve better. Name-brand aftermarket speakers deliver fuller, richer sound with considerably more detail and nuance, and they're capable of playing louder and cleaner than factory speakers. Connect new speakers to your factory radio and you'll get the best possible sound from your dealer-equipped system. Pair them up with a new car stereo for a level of enjoyment that can rival a high-fidelity home audio experience.

Hands-on research

What's in the box?

Download owner's manual

  • Two 2-way speakers
  • 2 Bottom mount adapter rings
  • Eight 1" Self-tapping screws
  • 8 Speed clips
  • Owner's manual (English/ Spanish/ French/ German/ Italian/ Portuguese)
  • Online product registration information

Features and Specs

Design 2-way
Tweeter Design 3/4" Dome
Tweeter Composition Aluminum
Woofer Composition Bi-Laminate Composite
Woofer Surround Rubber
Parts Warranty 1 Year
Labor Warranty 1 Year
Sensitivity 93 dB at 1 watt
Frequency Response 52 - 22k Hz
RMS Power Range (Watts) 2-60
Peak Power Handling (Watts) 180
Impedance (Ohms) 4
Top-mount Depth (Inches) 2 3/16
Bottom-mount Depth (Inches) 2 3/4

Product Research


High Efficiency Design: The Polk Audio DXi Series speakers feature a high efficiency design; meaning better sound and more volume using less power.

Dynamic Balance Driver Technology: 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.

Klippel Optimized Components: For a driver to reproduce complex sounds accurately, the cone must move exactly the same distance and manner in both directions. The Klippel distortion analyzer, a device that uses a laser and sophisticated software to do large-scale analysis of drivers in motion, lets Polk optimize the speaker's motor structure, voice coil alignment, and suspension to yield the best possible performance.

Composite Cones: Each speaker features a Dynamic Balance, Bi-Laminate composite, polypropylene cone woofer. These composite cones feature tremendous stiffness-to mass ratio, resulting in faster transients and finer detail.

Rubber Surrounds: For a smoother response and improved durability, the speaker uses rubber surrounds.

Aluminum Dome Tweeters: Each speaker features a 3/4" aluminum dome tweeter for clear, accurate highs.

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 DXi571 Reviews

Average Customer Review:

38 reviews
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Polk Audio DXi571

Written By Denny, Ohio on Thursday, March 26, 2015

Crutchfield Customer Review (What's this?)

These are great speakers with the proper equipment. I had the factory receiver and had to drive them pretty hard to get nice crisp sound out of them. Once you cranked them up they sound great. Not so good a low volume. They need a amp or higher power receiver.

Pros: Sound great when you turn the volume up

Cons: They are kind of power hungry. Need a good receiver or amp to drive them.

Great upgrade

Written By Mark, Carlisle ky on Sunday, March 08, 2015

Crutchfield Customer Review (What's this?)

a definite upgrade crystal clear with surprising bass!

Pros: Love them

Cons: none

Very happy

Written By chrysler, New York on Saturday, February 28, 2015

Crutchfield Customer Review (What's this?)

Replaced the stereo and speakers in my 08 Edge . . so far so good

Pros: perfect fit

Cons: not as loud as i hoped for but still sound great

Polk Audio DXi571

Written By Cliff, Orlando Fl on Tuesday, February 24, 2015

Crutchfield Customer Review (What's this?)

These are pretty good speakers but lack heavily without an amp and sub.

Pros: Very clear when bass boost is at 0.

Cons: Sound very fuzzy and can't handle much sound when power and bass boost are turned up.

Polk audio DXi571 speakers

Written By ken, al. on Thursday, January 15, 2015

Crutchfield Customer Review (What's this?)

very good sounding speakers replaced whole unit with these and couldn't be happier

Pros: sound quality and perfect fit

Cons: none

Solid sounding speakers

Written By WM, California on Sunday, January 11, 2015

Crutchfield Customer Review (What's this?)

I installed these speakers is the extended Cab portion of my 1997 F-250. I was looking for a pair of speakers that could produce a quality sound that would overcome the rumble of my diesel truck and maintain consistency while the volume was turned up. These speakers met my expectations and I would recommend this product to any future purchasers looking to get quality sound at an affordable price.

Pros: these speakers maintain there structure at high volumes and produce a great midrange sound.

Cons: none

Excellent Speakers

Written By Gabriel, La Vega, Dominican Republic on Monday, January 05, 2015

Crutchfield Customer Review (What's this?)

This is an awesome quality speaker. This brand is top of excellence.

Pros: Easy to install, comes with all accessories to.

Cons: no cons

Polk Audio DXi571

Written By Davypig, Parma, Ohio on Saturday, January 03, 2015

Crutchfield Customer Review (What's this?)

Good, clean sound!

Pros: Sound, price

Cons: None

Polk Audio DXi571

Written By GeoB, NC on Monday, December 29, 2014

Crutchfield Customer Review (What's this?)

Great speaker.Sounds wonderful in my 2012 Fusion.Fit perfectly.

Polk Audio DXi571

Written By MarkoWyo, Wyoming on Tuesday, December 23, 2014

Crutchfield Customer Review (What's this?)

great speakers for their size, much better than factory, easy install too!

Pros: as advertised

Cons: none

Great Sound

Written By Pete, Newman, Ca on Friday, October 03, 2014

Crutchfield Customer Review (What's this?)

I installed these myself on my 2001 mustang, very easy to do and the quality is better than stock.

Pros: Sounds better than stock.

Cons: Bass doesn't hit as hard.

good value to sound ratio

Written By good Value to Sound ratio, Dayton, Ohio on Wednesday, September 17, 2014

Crutchfield Customer Review (What's this?)

these speakers were very nice and sound good. I have a 2014 Ford Escape and put these in all 4 doors. My only issue was with Crutchfield, I didnt get door panel removal instructions and when I contacted them they said sorry it is too new...... but they didnt have them for a 2011 -2013 either, I instantly found them online so you would think Crutchfield would have them too.

Pros: good sound decent price

Cons: none

Not bad

Written By Edward, Center, Texas on Thursday, August 21, 2014

Crutchfield Customer Review (What's this?)

Easy installation in my 98 Ford Ranger. Great upgrade. Sounds great and price isn't bad either

Pros: Highs and mids are crisp.

Cons: Lows aren't that great. Need a sub.

Baby's siinging a little sweeter now!

Written By Sal, Long Island, NY on Wednesday, July 30, 2014

Crutchfield Customer Review (What's this?)

Just installed a pair of Polk DXi571s in the back-of-the-seat location of my 2002 Ford Thunderbird. Nice compliment to a newly installed Pioneer AVH-X5600BHS head unit. Installation was fairly straight forward and made much easier with Crutchfield's Ford wiring harness adapter. Huge improvement over the factory speakers. Excellent midrange and highs. Very acceptable bass tones, especially from a rear forward facing speaker system. Very efficient speakers, and a lot of bang for the buck.

Pros: Simple installation into existing factory speaker system mounts. Terrific performance of mid and high range tones, very respectable bass performance. Overall, an excellent replacement for factory stock speakers, without braking the bank.

Cons: Nothing I've seen.

Polk Audio DXi571 Speakers

Written By CQLink, Detroit on Wednesday, July 23, 2014

Crutchfield Customer Review (What's this?)

"Muddy" is the best word to describe the sound of these speakers. Before and after installing an Alpine KTP-445U Head Unit Power Pack these speakers sounded bad. Very disappointed. I've used Polk in numerous home theater applications and once in a truck stereo install. The Polks didn't sound good in the truck and I'm not sure why I thought they would sound any better in my car. Pass up even with a price drop. You can find better speakers in the $40-$50 range.

Pros: None.

Cons: Terrible bass response. Speakers sound dull and muddy. The clips Polk provides to mount the speakers into existing places in your door are worthless. Had to modify to install.

polk audio 5x8 speaker

Written By Ted, Glassport, Pa on Sunday, July 20, 2014

Crutchfield Customer Review (What's this?)

very good upgrade to stock speakers. took advice from salesperson to find these.

Pros: easy install, exact fit, harness plugs fit perfect. only about 15 minutes per door to install

Cons: none

Great upgrade

Written By JoshW, Indiana on Friday, July 18, 2014

Crutchfield Customer Review (What's this?)

These are some very good speakers. I replaced all 4 oem speakers in my ranger with these and I'm very pleased. The low bass is very respectable, but mid bass, like kick drums, sound awesome. I listen to rap all the way through to metal, and these shine on rock and metal. I think these will be very sufficient for rap once I put an amp on them. Absolutely no buyers remorse

Pros: Double bass for days

Upgrade for a 1994 F150

Written By Adam, Chesapeake, VA on Sunday, July 13, 2014

Crutchfield Customer Review (What's this?)

Replaced a pair of blown MTX speakers in my 94 F150. It's a tight fit for just about any speaker, but I used a few washers to angle the magnet a bit for a better fit. Sound is great, very clear with a good midrange. Don't expect much in the low end department, but that's true with most speakers.


Written By John, Oklahoma on Friday, June 20, 2014

Crutchfield Customer Review (What's this?)

Sounds way better then stock. You can here evey thing more clear

Pros: Cleaner clear sound


Written By indy018, la crosse wi on Sunday, June 15, 2014

Crutchfield Customer Review (What's this?)

Was looking Fo a upgrade and read a lot of reviews. Finally chose the polk for front and rear and couldn't be happier. Sound great and a improvment over the shaker 500.

Pros: Sound great and Crystal clear

Cons: Had to cut some of the casing off to get them in a 06 mustang front and rear

A truly incredible improvement. ...

Written By Anonymous, Fairbanks, Alaska on Friday, June 13, 2014

Wow, what an improvement, installation was extremely easy, especially with Crutchfield provided wiring adapters. Do yourself a favor and buy these, you won't believe what you will hear. I can't say enough about Crutchfield support, they will help you for car stereo needs.

Good Sound, Installation instructions could use some work!

Written By Dan G., Carleton, Michigan on Friday, June 06, 2014

Crutchfield Customer Review (What's this?)

The speakers sound great and are a significant improvement over factory installed. Installation instructions do not tell you the "gasket" is not to be used. The holes in the speakers DO NOT align with all 3 OEM installation holes. You will have to drill your own new one or two depending on your retention desire. For me, 2 lined up, 1 did not. I ended up using 4 holes to secure the speakers since I wanted to ensure there were no rattles.

Pros: Great Sound

Cons: Installation instructions insufficient.

Great Sound For The Money

Written By momule, Rural Eastern Mo. on Friday, May 30, 2014

Crutchfield Customer Review (What's this?)

At this price point ($75) this is an excellent product. Perfect as a modest upgrade for OE speakers. In my Ranger I added sound insulation in the doors to prevent rattles in door when windows were open but that's a truck issue and not a fault of the speakers. I am driving 4 of these with a Blaupunkt Adelaide 130 Media Player and I am very pleased. It could use a sub for more "thump" but I am not needing that myself. Some report this speaker as being too bright but both the kind of music I enjoy and my 60 year old ears are happy with what I have.

Pros: VERY good upgrade from factory equipment and a well made speaker. Polk makes good stuff.

Cons: Could use a sub so that cone could be limited to what it really does very well: midrange. If you need to be thumped in the chest by your tunes either look elsewhere or add a sub

Fantastic Speakers!

Written By Jason, Aiea, HI on Saturday, May 03, 2014

Crutchfield Customer Review (What's this?)

Easy installation in my 2007 Ford Explorer and great sound quality for the price. Can't beat Crutchfield support and shipping. Hands down the best.

Pros: Price

Speaker Upgrade 1999 Ford Explorer XLT

Written By Jack K, Philadelphia, PA on Tuesday, April 29, 2014

Crutchfield Customer Review (What's this?)

I had heard that the speaker upgrade to the sound system was the easiest place to start. There was nothing wrong with my stock speakers, but I changed out all 4. The sound quality is AMAZING! I listen to most of my music through the IPOD or IPHONE, but even when it is the radio it sounds great. It took about 90 minutes to do all 4 speakers. Well worth the time and the money. The instructions were straight forward and easy. On my next used vehicle purchase, I will use Crutchfield and upgrade the sound system ASAP, the quality is far superior to stock.

Pros: Great Sound quality through all ranges, I wished I had done it sooner.

Cons: NONE

great sound

Written By 337me, Phoenix, AZ on Wednesday, April 23, 2014

Crutchfield Customer Review (What's this?)

Birthday present for my daughter. Great sound! Highly recommended.

Pros: Easy installed. Crutchfield supplied everything needed

Cons: None

Love these speakers

Written By Anonymous, Toledo, OH on Saturday, March 22, 2014

Crutchfield Customer Review (What's this?)

Great price, GREAT sound.

Pros: I absolutely love these speakers. Clear, crisp highs, surprising bass for a 5 X 7.

Cons: None.

Polk Audio DXi571

Written By Anonymous, New Cumberland, PA on Monday, March 17, 2014

Crutchfield Customer Review (What's this?)

Great sounding speakers. Glad i went with them.

Polk DXi571

Written By Harry, Rocky Point, NC on Tuesday, March 11, 2014

Crutchfield Customer Review (What's this?)

These work really well for the money

Pros: Price and performance

Cons: None

Perfect fit and sound

Written By Chris, Atlanta, GA on Wednesday, February 26, 2014

Crutchfield Customer Review (What's this?)

Perfect fit and great sound quality!

Speakers are very respcetable

Written By Noid 1037, Tulsa, OK on Monday, February 10, 2014

Crutchfield Customer Review (What's this?)

I purchased these speakers for a 2012 Ford F-150 XLT Supercrew. They were installed on the front doors. The factory passenger side speaker had stopped working-blown! They went right and no problems getting them installed. They sound better for sure than the Ford factory and I am likely going to replace the rear door speakers in the very near future!

Pros: Easy connection, same size as the factory - no mods needed. Nice sound and nice look.

Cons: not much

Happy !!

Written By 330turbo, Sarasota, Fl on Friday, February 07, 2014

Crutchfield Customer Review (What's this?)

sounds clean and holds good base sound, and takes the abuse very well !

Pros: Is a Polk !!!

Cons: I don't know any yet !

Polk Audio DXi571

Written By Brian, Charlottesville Va. on Friday, January 10, 2014

Sound fair to me not enough low end . No speaker grills but for the buck not a bad deal.

Pros: price

Cons: No speaker grills

Polk Audio DXi571

Written By Anonymous, Powell, WY on Monday, December 02, 2013

Crutchfield Customer Review (What's this?)

To be honest, I did not like them at all to begin with as they were quieter and less bass than the stock unit. Figured out that the baffle was killing them, I was not aware that the baffle needed to be cut out. After reading some posts about them, I ended up removing the baffle and now they sound much, much better. Was hoping for a bit more bass, but great clarity, so overall, happy with them now.

Pros: Very good clarity.

Cons: Could have a little better bass.

polk speakers

Written By Anonymous, Cranston ri on Friday, September 13, 2013

Crutchfield Customer Review (What's this?)

These speakers sound way better than stock but they crack and distort a bit. I like it loud in my car and so far to keep the speakers from cracking I haven't been able to put them as loud as I'd like and I have to keep the bass at zero along with mid's and tremble. I have these in the rear of my mustang.

Pros: Better than stock

Cons: Crack and distort with any bass at all

Great Sound Mid Level Speaker

Written By B, South Florida on Saturday, August 31, 2013

Crutchfield Customer Review (What's this?)

Great sound for what I would consider a mid level speaker. Covers a wider range of sound than most speakers in the same price range. I bought 4 for all the doors and as of now have them hooked to a factory head unit and its already a noticeable step up. As soon as I get a new head unit I know they will be even more refined.

Pros: Price, wide range of sound. Easy to install in factory openings.

Cons: If you are looking for a high end speaker look at a different model but this is more than suitable for a mid level Or factory upgrade.

Polk Audio DXi571

Written By bassgod, san francisco, ca on Wednesday, July 31, 2013

Crutchfield Customer Review (What's this?)

These speakers hit well on the bassline and are decently priced. i would recommend these to someone who wants a nice pair for a decent price. Although the tweeters are not the best.

Pros: Bass sounds great Decently Priced

Cons: Tweeters could use some upgrading

Very hard on the ears

Written By msw1, Glendale, Az on Sunday, July 14, 2013

Crutchfield Customer Review (What's this?)

Purchased these for a 1999 Ford Expedition. The fit was perfect front and rear. They have a decent amount of bass for their size. Unfortunately, the tweeters on these speakers are awful. My adviser did tell me they were bright, but that is not the appropriate description for these. They are extremely harsh and gave both my wife and myself headaches after listening to them. My ears physically hurt after just 10-15 minutes at a moderate volume. I strongly do not recommend these speakers unless you enjoy an extremely bright, irritating tweeter.

Pros: Perfect fit. Decent bass.

Cons: The harshest tweeters I have ever experienced.

Get everything you’ll need to enjoy your new Polk Audio DXi571

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.
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



XTC 5"x7" Speaker Baffles

Protect your speakers (4-1/2" depth)

Item #: 237XT57


Add to Cart
Boom Mat 5

Boom Mat 5"x7" Speaker Baffles

Protect your speakers
Regular and slim-line sizes (Regular: 4" depth)

Item #: 696B050360


Add to Cart

XTC 6"x8" Speaker Baffles

Protect your speakers

Item #: 237XT68


Boom Mat 6

Boom Mat 6"x8" Speaker Baffles

Protect your speakers
Regular and slim-line sizes (Regular: 4-1/2" depth)

Item #: 696B050370


Add to Cart
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
Pro.Fit Wire Worm

Pro.Fit Wire Worm

Installation tool helps route wiring through tight spaces

Item #: 042DM4533


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