Skip Navigation

Polk Audio DXi6501

6-1/2" component speaker system — also fit 6-3/4" openings

59 Reviews | 4 questions - 6 answers

Watch a first-look video

Item #: 107DXI6501

In Stock

Was: $199.99

Price Break: -$60.00

Installation gear for most cars

Add to Cart

Ask an expert

Our VA-based experts can help.

1.888.955.6000

ChatEmail

Add to Cart

Polk Audio DXi6501

Overview

Our take on the Polk Audio DXi6501

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.

Polk Audio DXi6501

The 1" silk/polymer tweeted can be surface- or flush-mounted for better imaging.

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

Polk's DXi6501 component speaker system features 6-1/2" 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.

Silk/polymer dome tweeters broadcast sweet sound

Rest assured, you'll hear every detail of your most enthralling musical moments. Each 1" silk/polymer dome tweeter brings out the high-frequency highlights in your music, and a proprietary magnetic liquid cools the tweeters so you'll get clear sound and excellent long-term performance. You can set your own stage — surface- or flush-mount the tweeters with the included swivel-mount cups, and aim the tweeters towards your ears so you can really enjoy the show.

External crossovers for stand-out detail

Polk includes high-quality crossover networks that create a smooth transition between woofer and tweeter, so you'll hear accurate, balanced performance from this system. From an intensely quiet acoustic pluck to the most exhilarating electric solo, it'll be a very entertaining ride.

Installation note: You'll need a pair of our universal backstraps to install the tweeters in the factory locations.

I like these speakers

juan d, Bethesda, MD

Featured Video:

What's in the Box:

  • 2 Woofers
  • 2 Woofer grilles
  • 2 Woofer spacer/adapter brackets
  • 2 Woofer foam mounting gaskets
  • 2 Tweeters (each tweeter has attached 34" speaker leads)
  • 2 Flush-mount tweeter cups (with tweeters installed)
  • 2 Metal flush-mount clamps
  • 2 Surface-mount tweeter cups
  • 2 Crossovers
  • Four 35" lengths of speaker wire (each has female quick-slides on one end and tinned wire on the other)
  • Fourteen 1" Self-tapping screws
  • Eight 3/8" Self-tapping screws
  • 8 Speed clips
  • Owner's manual (English/ Spanish/ French/ German/ Italian/ Portuguese)
  • Online registration information

Product Highlights:

  • component speaker system includes two 6-1/2" woofers, 2 tweeters, and 2 crossovers
  • polymer composite woofer with butyl rubber surround
  • supplied adapter rings allow for fit into 6-3/4" locations
  • 1" liquid-cooled silk/polymer composite dome tweeter
  • flush- and surface-mount swivel cups
  • 2-way external crossover network (12 dB/octave, 4,000 Hz high- and low-pass)
  • electronic tweeter protection circuit
  • power range: 10-100 watts RMS (300 watts peak power)
  • frequency response: 35-23,000 Hz
  • sensitivity: 92 dB
  • top-mount depth: 2"
  • warranty: 1 year
  • Our 60-day money-back guarantee
Reviews

Polk Audio DXi6501 Reviews

Average Customer Review:

59 Reviews

I like them

Written by: juan d from Bethesda, MD on July 20, 2016

2015 Toyota Corolla
Crutchfield Customer Review (What's this?)

I like these speakers

Pros: Good quality and nice sound

Cons: Not very powerful but I don't have an amp so...

Don't be fooled by the bad reviews

Written by: Mike S from Missouri on May 22, 2016

2013 Hyundai Elantra

As stated above, don't be fooled by the bad reviews. Most of the bad reviews are for the following reasons: A.) They just replaced stock speakers, nothing else B.) Not hooked up to any type of amp C.) Don't have an amp but have it connected to some crappy $100-$150 head unit. D.) Just don't know how to properly tune speakers. I had these in my 2013 elantra coupe with a set of DXi 651 co ax in the back paired with an older R/F p2 12" ported box sub and the speakers were connected to a KTP-445U Apline power pack/brink amp. I was blown away. In fact I've rebought the exact same system to put in my 2012 Genesis coupe. I've had professional sound guys (competition sound guys) tell me this is one of the best sounding consumer driven systems they've heard. These polks are designed to have better/crisper highs and mids while, unfortunately sacrificing some lows. They are they perfect balance between crisp/clean high ends with good drive (not distorted) from the sub. If you are looking to just replace speakers and not have them amped with a conventional amp or power pack amp or something better than a run of the mill aftermakret head unit then these are probably not going to be for you. You're better off with some Apline type-s's were the high ends aren't really all that great but provide a much better low end. However, pair them with a good amp and/or sub and you won't find a better combination of speaker set up.

Pros: Can't find a better speaker combination set up when paired with an external (non- head unit) amp and/or subwoofer

Cons: Probably sound too tinty or too much treble if just replacing speakers or only hooking them up to a run of the mill head unit.

Mediocre at best

Written by: MTB in Rado from Land of love on March 6, 2016

2014 Jeep Wrangler
Crutchfield Customer Review (What's this?)

As another reviewer stated the tweeter has to much vocals and the driver has very little vocal just not that balanced. I guess I'll leave Polk car audio alone and only buy their home audio products. I'll be getting an RMA number and return them. I guess I'm spoiled from higher end Kicker 6.5" components.

Pros: Nice looking Easy to install. Crossover is small.

Cons: Tweeter and driver not balanced.

Great Components

Written by: Scott from grand rapids, MI on February 13, 2016

Crutchfield Customer Review (What's this?)

I just installed these speakers to replace my Alpine 6.5" co axials that were blown. These things can take some power, and stay crystal clear. I would recommend these to a friend or family member in a heart beat. Putting the tweeters on the dash angled towards the center of the vehicle and slightly up towards the head makes the highs bright and clear. The easy adjustable 9 db swing on the passive crossover makes it even easier to adjust the sound from left to right. Great gear.

Pros: Great sound and clarity, and still clear at higher volumes

Cons: none so far.

Excellent product

Written by: jrulzall from Massachusetts on August 13, 2015

2006 Toyota Tundra
Crutchfield Customer Review (What's this?)

Excellent product, sleek and elegant design. Sound fabulous. Crossover is a bit bulky especially when trying to fit somewhere into a door panel, but other than that easy install.

Pros:

Cons:

great upgrade from stock

Written by: charles B. from ohio on July 19, 2015

A tough install in my 07 pony , but with a little ingenuity and creativity nice install , put 6" in 8" woofer location had to leave 8" grill on and cut out 6-1/2" opening in it using new grill as template . Put crossover in 4x6 speaker location using Velcro in door ,wanted to put tweeter in A-frame location but couldn't because mirror control was there, so flush mounted in spot close to raised lock push opening, worked out perfectly, sound is directly in my ear .the hardest part was thinking how to place the woofer ,total install time @ 2-3 hours both doors set crossover to 0 better to adjust from head unit control's

Pros: Much clearer sound stage

Cons: Have to use your ingenuity to fit in a mustang stock doors ,but it is possible .

Great sound

Written by: MM from Virginia on July 6, 2015

installation really easy for someone who has done this type of thing. replaced factory speakers. very happy with the purchase.

Pros: clear sound at all ranges. reasonably priced.

Cons: instructions weren't very helpful for installation of tweeter. we came up with a simpler solution

DXi6501

Written by: Anonymous from Connecticut on June 9, 2015

2008 Honda Accord
Crutchfield Customer Review (What's this?)

Excellent build and sound quality.great bang for your buck!

Pros:

Cons:

Polk Audio DXi6501

Written by: Michael from Citrus Heights CA on June 8, 2015

Crutchfield Customer Review (What's this?)

Replaced the factory front speakers in my Toyota Tundra 2010. What a difference!!!

Pros: Everything!!

Cons: None

nice sound

Written by: huskerdoc from Nebraska on June 1, 2015

2014 Nissan Sentra
Crutchfield Customer Review (What's this?)

nice with the subwoofer and amp. with the right amount of power it does very well

Pros: nice for mids and highs

Cons: needs power

Great set of components

Written by: Anonymous from Albuquerque New Mexico on May 15, 2015

2014 Toyota Tacoma
Crutchfield Customer Review (What's this?)

Not the best for a factory head unit, but really woke up when paired with an alpine power pack. Used these to replace some factory 6x9's in a 2014 Toyota Tacoma.

Pros: Amazing sound

Cons: None

Polk just awesome

Written by: Trod from Madison, WI on May 14, 2015

Crutchfield Customer Review (What's this?)

Polk speakers are by far the best speakers I have ever owned I first installed them without an amp and they sounded awesome and Then amped them unbelievable!love them!

Pros: Great speaker all around

Cons: The speaker connection terminals seem cheap and flimsy to me I wish you would make better connections

disappointed

Written by: mdh from salt lake utah on April 21, 2015

1995 Ford Explorer
Crutchfield Customer Review (What's this?)

Ordered these speakers for the rms rating. But they under perform. I have a set of pioneers that have half the rating. They knock the socks of these. Sound qaulity is poor. Had to exchange them due to tweeter issue

Pros: Not really sure

Cons: Rms rating is not correct. Performs poorly. Sound is not clear and crisp

Polk Audio DXi6501

Written by: Bruce from California on March 23, 2015

2004 GMC Sierra 1500
Crutchfield Customer Review (What's this?)

This is the first pair of Polk speakers I have purchased. I previously had MB Quart, which were fantastic. The Polk speakers surpassed the MB Quart in clarity and easily handled the power from the amplifier. I will be replacing the remaining pair of MB Quart with the Polk Audio DXi6501. I highly recommend Polk Speakers.

Pros: Good price for the quality. Installation was easy

Cons: None that I can see.

Polk Audio DXi6501

Written by: Anonymous from Hanson, KY on January 28, 2015

2004 Chevrolet Suburban
Crutchfield Customer Review (What's this?)

Great set of speakers. Crutchfield has the best svc hands down. I wouldn't buy any were else.

Pros: Great set of speakers for the money

Cons: None

good speakers, tinny sounding though

Written by: Anonymous from canoga park, ca on January 18, 2015

2004 Chevrolet Silverado 1500
Crutchfield Customer Review (What's this?)

Easy install, I am getting a tinny sound from the highs. It is ran off a Kenwood excelon deck with no added amp. Iv tried adjusting it and the only way I can get that sound to go away is to turn down treble quite a bit and turn up the mid. Hoping it goes away with time or maybe with an amp install for the speakers. Other people have said the speakers need an amp to get full pormtential out of them.

Pros: Easy install, appear will built

Cons: Tinny sounding high notes

Polk DXi6501 speakers

Written by: Mayesd from Virginia on January 17, 2015

2008 Honda Fit
Crutchfield Customer Review (What's this?)

For the money a good investment. Good sound most of the time. Deep bass sometimes sounds like it has a little crackle. I could not pop the tweeters out of there holder. Ended up just using the friction from the holder in the door. Could not use the bracket. I was afraid to pry it out as I may damage it.

Pros: great for the money. Easy to install

Cons: could not use bracket on tweeter

Installed in 2009 Subaru Impreza GT

Written by: JRock from Bristol, VA on January 9, 2015

2009 Subaru Impreza WRX
Crutchfield Customer Review (What's this?)

I like the speakers. We used dynomat to make the sound better. Speakers sound very good. Tweeters can be a little bright so we may switch db down some. Went in the car very easy. Good purchase

Pros: Great sound and easy install. Use Dynomat to make sound better

Cons: Tweeters may be a little bright but you can adjust

awesome speakers

Written by: Nick K. from detroit, michigan on January 9, 2015

2011 Chevrolet Silverado 1500
Crutchfield Customer Review (What's this?)

great sounding speakers. huge upgrade from factory. couldnt be happier

Pros:

Cons:

great

Written by: Anonymous from Newark, DE on January 5, 2015

2009 Chevrolet Silverado 1500
Crutchfield Customer Review (What's this?)

Great sound for the price. The adjustible tweeters high or low are nice. Easy to istall with the free install gear Crutchfield throws in. Plenty of wire to run my tweeters from the crossovers to the pillars. Overall a very nice set of speakers.

Pros: Sound quality, value

Cons: Crossover is a little thick

Great Upgrade

Written by: Swindy from Southern Nevada on January 2, 2015

2004 Nissan Altima
Crutchfield Customer Review (What's this?)

Needed to replace Bose speakers (Front Doors) on a Nissan Altima. These did the job very well. Installing was quick and easy for the front door, however I haven't gone after the tweeters as free time around the holidays is in short supply. I also replaced the speakers in the rear door with Kicker 41DSC54 speakers.

Pros: Crisp sound, anything sounds better than deformed speakers.

Cons: None right now.

Much neded upgrade

Written by: Doug O from Wisconsin on December 3, 2014

2005 Chevrolet TrailBlazer
Crutchfield Customer Review (What's this?)

Very nice upgrade for my Trailblazers factory speakers

Pros: Sound and look of speakers

Cons:

Great Product

Written by: Anonymous from Massachusetts on December 3, 2014

2003 Jeep Liberty
Crutchfield Customer Review (What's this?)

Bought these to replace the stock door woofers and dash tweeters in my son's 2003 Jeep Liberty. Door install was asnap, plenty of room to mount the crossovers behind the panel. The tweeters were more of a challenge, but we fabbed some brackets and managed to mount them in the same position. Sounds great, much more definition and clarity than the old stock speakers.

Pros:

Cons:

polk speakers

Written by: zeccarias from 32960 on November 15, 2014

2012 Subaru Impreza WRX
Crutchfield Customer Review (What's this?)

These speakers are ok but the tweeters sound very twangy and there is alot of voice going through them .i haven't hooked them up an amp yet .but i don't think it's going to help. I should of just got the the regular speakers and not the component and used the factor tweeters .so for me it was not worth the money.

Pros: Nice packaging

Cons: Voice sounds twangy and unnatural from teeters .also the frame on the 6.5 isn't very sturdy.

Polk DXi6501 Components

Written by: James from Twin Lakes, WI on November 12, 2014

Crutchfield Customer Review (What's this?)

I am disappointed with the tweeters. Although they are silk/poly dome tweeters, which should sound warm, they sound tinny, thin, metallic. I used two different amplifiers without any change. The first was 45 watt per channel amp. The second is a 120 watt per channel amp. Sounds the same. Tweeter sounds the same, scratchy and tinny. I've used Polk speakers for ever. Usually, they're great. Not here. Also, mounting screws weren't the right length for the woofers.

Pros: Polk. 100 watts per channel handling.

Cons: Tweeters not right sounding.

Dont Buy It

Written by: David Q. from Puerto Rico on November 8, 2014

2005 Toyota Camry
Crutchfield Customer Review (What's this?)

Horrible bass

Pros: Good desing

Cons: You buy ths speaker under you own risk. If you dont have an amplifier at least 125 watts rms . Dont intent buy this speaker. I have an amplifier infinity reference 475a 75 rms watts and the speaker and this speaker has a big distortion . Bass sound as a cheap speaker may be 30. Dollar. I willing to pay for this speaker 30.00 dollar. An amplifier in Crutchfield 125 rms watts or more are very expensive. If you have money do it. Not warranty has good sound. Check other speaker please.

Great Sound

Written by: Anonymous from Lanai City, HI on November 7, 2014

2011 Honda CR-Z
Crutchfield Customer Review (What's this?)

Great sound and very reasonable price.

Pros:

Cons:

Affordable speakers

Written by: S from Roy, Utah on October 19, 2014

2009 Jeep Wrangler Unlimited
Crutchfield Customer Review (What's this?)

These are pretty nice speakers, been running them for about a week. The tweeters are running off my alpine HU and the woofers are connected to a two channel amp pushing 75W. I ran the tweeters through the supplied crossover and the woofers are using the crossover on the amp. Took some time to dial in the right sound but for the money they are pretty good. Not competition winning sound but decent sound on a budget.

Pros: Affordable and nice sound.

Cons: Not very good at high power. Don't go over the recommended RMS or they won't handle it.

Upgrade well worth it

Written by: Mr. Ed from Harrisonburg. VA on September 15, 2014

Somehow I made it many years with the "Premium" factory system in my 1999 Saturn SW2. Moved up to a Pioneer basic CD receiver a year ago and it was able to reveal the deficiencies. Have a Polk 10" woofer in a custom cabinet and drive it with about 90w from an old Sony amp I picked up from Crutchfield in the early 90s. Prior to the DXi6501 upgrade I had added surface mount tweeters on the upper dash and padded them with 30 ohm series resistors. Still too bright. But it let me hear about higher tweeters - the SW2 location is into my calves. Did not want to get the tweeters too high so I settled for about 10 " up from the woofer, in the plastic in front of the fuzzy door covering with the window controls and latch. Mounted the crossovers in the door in such a way that I can reach the tweeter switch without removing too much. Stereo imaging is not like the showroom, after all I am sitting between them and they are not at ear level. Clarity and openness are vast improvement, I am hearing more details. Let my wife listen to an Il Divo CD and it brought tears to her eyes. These speakers were on sale and for the price I am very happy. Gave them 4 stars because they don't sound like much more expensive units; a great value but not amazing. This is my first experience with components with passive crossovers (I have used electronic crossovers with 3 stereo amps in other vehicles) - it is definitely better than the standard coax with a series cap.

Pros: Significant upgrade in clarity. I feel that my basic head's 20 watts are adequate (with a separate powered woofer). Usual superlative assistance from the Crutchfield team.

Cons: Tweeter mounting bracket for flush mount did not have enough tang length for my thin plastic door panels and I had to use a little gaffer tape to secure them. Door mounting crossovers means they would be hard to adjust in this vehicle, so I spent some hours with them on the bench before committing to the flat setting. Research, experience and testing meant 10 hours to get the first one in and 2 hours for the second - Saturn latches are very hard to get back in - watch for tricky swivel clips.

Fit in 2001 GMC Sierra Crew cab rear doors perfectl

Written by: Lance from Bakersfield on September 2, 2014

2001 GMC Sierra 2500
Crutchfield Customer Review (What's this?)

These fit perfectly in the rear doors of my 2001 GMC Sierra 2500 HD Crew Cab in spite of Crutchfield saying they would not. Actually bought them for the front doors, but decided to put them in the back when I saw they would fit. I did have to drill a hole for the tweeters, but that is expected. Sound great. Very happy with the speakers.

Pros: Fit Sound

Cons: Crutchfield error in their fitament data.

Really nice sound--great speakers

Written by: PCW from Buffalo, NY on August 5, 2014

2005 Hyundai XG350
Crutchfield Customer Review (What's this?)

Sweet, clear sound. Very happy. Woofers fit perfectly, Crutchfield-supplied wiring adapter worked well. Tweeter mounting was a problem until I read somewhere to use Dynamat, that real sticky sound-deadener sheet stuff. Actually I used a cheap hardware store version, Quick Roof: very sticky. The tweeter had to mount in the door behind the existing curved grill. There was no flat mounting surface, so I cut an x-shaped slit in a piece of the mat and pushed it over the tweeter, then stuck the whole thing to the inner door panel. I used the same mat stuff to attach the crossover to the door near where I cut into the harness for the wiring. No wire splicing needed. Car has existing amp used for 2-ohm speakers, I kept it even tho these are 4-oms. Need to crank the volume up a bit (around 30 to 50%), but it gets plenty loud for me, no distortion. BTW the local car stereo shop wanted a little under $200 to install these. I also bought some Quick Roof and I slathered it all over the inside of the doors for sound deadening.

Pros: Smooth sound, not bad installation.

Cons: I can see tweeter installation being a problem for some.

Polk Audio DXi6501

Written by: Anonymous from Danville, CA on July 7, 2014

2010 Toyota Prius
Crutchfield Customer Review (What's this?)

Great product for the money, looks great.

Pros:

Cons:

Disappointed - does not fit as described

Written by: BKL from Providence, RI on July 1, 2014

2013 Jeep Wrangler Unlimited
Crutchfield Customer Review (What's this?)

Despite the claims on Crutchfield site this item does NOT fit a 2013 Wrangler Unlimited. The tweeters in this kit have a huge lip that prevents them from being placed in the factory holes in the dash, at least not without trimming the bottom and then having plastic extend beyond the dash holes around the rest of the circumference. Apparently I'm expected to disassemble the tweeter from the Polk casing and then disassemble the factory tweeter to try and use the factory screen. Probably not difficult but I expect it to fit if the site advertises it as such. My first purchase here is a HUGE disappointment. Any suggestions on kits that work out of the box? These are going back as soon as I have time to waste arranging shipping.

Pros:

Cons:

Crutchfield response on July 2, 2014 Our database can only check the woofer locations for fit. Tweeters are always a custom installation and only rarely will they drop right into the factory housings. The customer can definitely return the speakers and our advisors will be happy to help find something that'll work out better.

Good surprise

Written by: Justin h from Kodiak, Ak on June 25, 2014

2000 Nissan Xterra
Crutchfield Customer Review (What's this?)

I was well pleased with this set! Once installed with an amp of equal capabilities they sounded very good! The high notes hit well and a decent amount of mid as well. Ver clear and aggressive sound! I could turn it up loud enough to the point you don't want it louder! Another great Polk product!!!

Pros:

Cons:

Polk Audio DXi6501

Written by: RhondaM from Nespelem, WA on June 20, 2014

1993 Mazda B Series
Crutchfield Customer Review (What's this?)

Love them!!

Pros:

Cons:

Head Turner

Written by: Billroy from Parts Unknown, SC on June 20, 2014

If your looking for a cheap setup for your vehicle then this is not it. Factory radio's suck. The ohms matter. Put in a head unit THEN listen to your factory speakers.. Sounds like crap right? Then replace the speakers keeping the same head unit. Sounds a lot better right? I have mine running off of an amp and you can hear me coming down the road.

Pros: Sounds amazing in my 2002 taco 4 wheel drive. Paired with my Fosgate P4's and amps I say it kicks butt!!!

Cons: Sounds great if you have an aftermarket head unit. Add an extra amp and you will hear sounds that you have never heard before

Love them!

Written by: MikeH from Tampa, FL on June 14, 2014

Crutchfield Customer Review (What's this?)

These are amazing speakers for the price they sound great in my PT Cruiser and I am so glad I purchased them, there are not many that fit the car but these do and I am glad!

Pros: Love them, easy install, nothing bad to say!

Cons: Nothing

Does not fit sound average

Written by: rnelson from okc on June 6, 2014

Crutchfield Customer Review (What's this?)

purchased on recommendation of Crutchfield to replace factory Toyota speakers. They don't fit existing speaker brackets which have to be used to clear window. Further, now my door panel will not snap back flush. Sound is also not really any better than the speakers I replaced. A waste of 8 hours and 3 days.

Pros: none

Cons: sound average and they do not fit standard 6 inch speaker bracket

Crutchfield response on June 10, 2014 We forwarded this review to our Technical Support team for follow-up. Lifetime tech support comes with every Crutchfield purchase.

polk audio

Written by: j from cleveland on June 3, 2014

2006 Chrysler Sebring
Crutchfield Customer Review (What's this?)

Excellent product! Sounds great!

Pros: Highs sounds great for the tweeters.

Cons:

Toyota 4Runner

Written by: Anonymous from Tucson, AZ on May 21, 2014

1999 Toyota 4Runner
Crutchfield Customer Review (What's this?)

I purchased these to replace my factory speakers. The sound is really clear. I can hear things in the music I have not heard prior. The only thing right now is the highs are very shrilling and harsh. I hope once they "break in" the sound will settle in.

Pros: Great clear sound..very crystal clear

Cons: highs are very harsh..

Great speakers

Written by: Mbh from Milford ma on May 21, 2014

2010 Toyota Tacoma
Crutchfield Customer Review (What's this?)

Sound great in a 2010 Tacoma SR5

Pros: Sound great with factory head unit. Easy install. Need to remove factory tweeters and run new wires. Crossover mounted to door under arm rest

Cons: None

2014 wrangler unlimited

Written by: Mike from Milwaukee , WI on May 18, 2014

2014 Jeep Wrangler Unlimited
Crutchfield Customer Review (What's this?)

Great upgrade to factory speakers, Great sound!!!

Pros: Great speakers

Cons: None

Not a Good replacement for 2011 CTS

Written by: GlynM from Rehoboth, MA on May 11, 2014

Purchased these to replace the front door speakers in my 2011 CTS with Factory Bose system. I was hoping to get better bass response form these vs. the stock speakers. The purpose of this review is not really to knock the speakers, I'm a big fan of Polk. However, these just aren't a good replacement (and I'm guessing no 6.5" speaker would be) for the he 2011 CTS. The issue is that with this particular speaker, you have to use Crutchfield's speaker adapter plate AND the plate that comes with the speaker. the two do fit together but it's a less than ideal foundation. Secondly, and more importantly, these are 4OHM speakers and the factory are 2OHM. I questioned this with a sales rep prior to purchase and was told that there would be no appreciable difference - WRONG! The final reason why these just don't perform well against the stock speaker is that the factory Bose front door speaker is 8" in diameter (not 6.75" as many place state). After mounting the left side front, I did a left to right sound comparison and the stock speaker was louder, deeper, and richer in sound than the polk. A very disappointing result. FYI, I wasn't planning to switch out the tweeters because the stock system is pre-crossed at the amp and the cross-over on the polk is set at a different frequency (3k).

Pros: Good Build Quality

Cons: Didn't work out for my application.

huge difference from stock

Written by: davtheknave from Whitingham, VT on May 2, 2014

2011 Jeep Wrangler Unlimited
Crutchfield Customer Review (What's this?)

Don't really have any negatives about this, or any of the four different Polk products I've owned in the past.

Pros: Great sound, great build quality, great price

Cons: none, and none

Decent if properly powered

Written by: Rolls from Wichita, KS on March 30, 2014

I've had these installed in my new Focus for about three months. I find that the highs are way to harsh for my listening preferences, and the bass is only moderate. I am not a certified installer, but I definitely know what I'm doing, as I install aviation systems and car systems regularly. I installed these myself, so the sound quality didn't suffer from the install. The speakers and outboard crossovers definitely feel of high quality, better than most in this price range. Unfortunately, that's about where the good stuff ends. I've hooked up multiple brands (and power levels) of amplifiers to these speakers, and they only sounded "good" when I was pushing them with almost 120 watts RMS. So I suppose they can at least handle their recommended rms rating, that's good, but they still didn't sound all that great. Another reviewer claimed that they have an exorbitant (long) break-in period, and I definitely agree. It took about 30 hours of play before the bass tightened up. I wouldn't purchase these again. If your heart is set on these, then do yourself a favor and invest in a high-powered amp.

Pros: Feel of high quality speakers. Comes with versatile and good-quality mounting adapter rings.

Cons: Just about everything else

Polk Audio DXi6501

Written by: JC from Livonia, Mi on March 27, 2014

2008 Saturn Sky
Crutchfield Customer Review (What's this?)

I used this to replace the stock front speakers in my Saturn Sky and I'm amazed at the sound quality!

Pros: Quality, sound and price. Polk knows how to make speakers.

Cons: You will need to purchase an amp to drive this babies, but it's worth the investment.

Polk Audio DXi6501

Written by: Harvey from Charlottesville Va on March 18, 2014

Really improved the sound of my 2014 Subaru Legacy by using these Polk speakers

Pros: Crutchfield did a great job installing the speakers

Cons:

Great speakers with amazing sound

Written by: MissMello from Boston Ma on March 15, 2014

2010 Jeep Wrangler Unlimited
Crutchfield Customer Review (What's this?)

Good brand, sounds great in the jeep. Hoping they last a long time.

Pros: Sounds good

Cons: None

Polk Audio DXi6501

Written by: Anonymous from Daytona Beach, FL on February 17, 2014

2008 Honda Accord
Crutchfield Customer Review (What's this?)

Yes

Pros:

Cons:

Polk audio

Written by: Paul from San Diego on February 1, 2014

2011 Toyota Tacoma
Crutchfield Customer Review (What's this?)

Crisp clear sound. Great speakers

Pros: Price- got them on sale

Cons:

fantastic speakers

Written by: erik from Columbia, sc on December 30, 2013

2006 Volkswagen Rabbit
Crutchfield Customer Review (What's this?)

Speakers are great. Loud at low volumes. Hearing things in my music that I've never heard before

Pros: Everything

Cons: If anything, not much on the low end. But these speakers coupled with a good sub and everything should be great

Polk Audio DXi6501

Written by: Paul Jr from Rhode Island on December 26, 2013

2013 Honda Civic SI
Crutchfield Customer Review (What's this?)

I installed these in the front of my 2013 Honda Civic Si Sedan with factory nav. I will say I did not try them off the factory amplifier. Instead I ran them to a 5 channel Kicker unit. With that being said, I installed these tweeters into the factory location. I did mangle the factory tweeters to remove them to put these in the factory bracket. It worked though. I put the mid range woofer in the front doors and used foam baffles behind them to tighten up the sound. These units sound incredible. Nice crisp clean sound. I have run many brands of speakers over the years. These are right up there in quality and for the price you just cant at them. I am pleased with them. They have a little low end kick to them but certainly not boomy. If you want the low end bass you need a subwoofer setup. Ive got these set on a high pass filter at 50hz on up. The subwoofers take care of 50hz and below. It sounds fantastic on all different types of music. Country to pop and everything in between. I have no complaints. The cross overs are nice and small i mounted mine in the kick panels. Out of sight out of mind but easy access for adjustment purposes.

Pros: Great value and sound for the price.

Cons:

Polk Speakers for VW

Written by: ChilliGal from Hawaii on December 3, 2013

2001 Volkswagen Passat
Crutchfield Customer Review (What's this?)

Due to mishandling on an unrelated repair job, the front door speaker on the driver's side had developed a buzz which couldn't be repaired. The Crutchfield Catalog's timely arrival with the offer of Polk speakers on sale ensured that we would make the purchase. Wise decision as the speakers went in easily. Now, we are treated to clean sound and no distortion at either the treble or bass end of the spectrum. We are quite pleased with the speakers and will recommend them to our friends.

Pros: Installation was quick and easy.

Cons: None

Component Upgrade

Written by: JD from San Antonio, TX on November 18, 2013

2006 Toyota Sienna
Crutchfield Customer Review (What's this?)

I purchased these speakers as the first step in upgrading the sound system in my 2006 Sienna minivan. With my son turning 16 and in need of a car I felt I would be driving the van for the next four or five years so I decided I might as well enjoy it. My long term goal is to build a high fidelity system capable of matching the sound quality of my home stereo. The next step will be to replace the factory head unit and install amplifiers and subs. The speakers were easy to mount using Crutchfield's brackets (with some minor adjustments to the rear brackets to fit the existing mounting points. I will admit I have noticed a significant loss of bass response with the Polk speakers. However, I expected as much given their smaller size. The high-ends are amazingly crisp and the midrange response seems very accurate. Once I finish adding the other components I'll update this post.

Pros: construction, sound reproduction

Cons: None so far.

Polk Audio DXi6501

Written by: J from Tyler, Texas on November 4, 2013

2008 Jeep Wrangler
Crutchfield Customer Review (What's this?)

Sounds Great. I was able to take apart the original tweeters in a Jeep Wrangle JK and slide the Polk Tweeters inside. I did have to cut part of the original tweeter housing to be able to snap on the original grill. Very happy with the finished product. Any everything looks factory.

Pros: Sounds great

Cons: None

Excellent natural sounding speakers

Written by: Brent from Richland, Wa on November 3, 2013

2006 Honda Civic EX
Crutchfield Customer Review (What's this?)

I upgraded to these speakers as part of a complete upgrade from the factory system in a 2006 Civic. I don't know how much of the improvement is in the speakers and how much is due to the excelon head unit and 75W/ch amp. However the system as a whole sounds sublime. I was skeptical of the specified low frequency limit but I send them the full range signal from the amp and they have no trouble accurately reproducing the tone and volume of a double bass (Edgar Meyer provides my test music). I do not have a sub and I do not feel like I need one for the music I listen to - mostly bluegrass, jazz and classical with the occasional prog rock. Midrange (guitars, male vocals...) sounds full and warm and highs are crystal clear. It sounds like the band is in the car with me, which is to say that the imaging is also excellent. These speakers had the most pronounced break-in period I have ever experienced. For a few hours they were actually shrill and painful to listen to at any decent volume. That passed and they continued to improve for another week (maybe 10 hours listening) and they have stabilized at two weeks. I can't say with certainty that this wasn't due to the amp burning in instead of the speakers since I upgraded all at once. If you want natural sounding music with accurate bass, these are perfect. If you want explosive bass that can be heard for miles you will need a sub, but would probably still want these too.

Pros: accurate bass, warm midrange and crisp clear highs. Excellent imaging.

Cons: I'm paying more for gas now that I take the long way everywhere I go.

Polk Audio DXi6501

Written by: petet from medford ma on October 12, 2013

Crutchfield Customer Review (What's this?)

Bass is rohbust

Pros:

Cons:

smooth, wide range

Written by: DaveL from Seattle, WA on September 23, 2013

Received as a gift. Very smooth, wide range for this size. Very good treble and midrange, fair, smooth bass; 6 1/2 speaker can't be expected to compete with larger sizes of similar quality. Polk seems to be aiming at quality of sound, for a natural, accurate image rather than for the "boom boom" type of consumer. I was able to fit everything in my Prius, which came with the JBL system. The woofers came with adapters that fit the woofers perfectly. I was able to fit the tweeters in the original spots, with simply a bit of cutting away the thin plastic that held the poor quality JBL tweeters (shame on JBL!). The tweeters are very efficient, so I set the level on the crossover to the lowest setting. I bought the Polk 3 1/2" two way speaker from Crutchfield for the center speaker, very efficient, fine tweeter. Good advice from Crutchfield. I think these speakers would fit most cars, more than Crutchfield recommends. I added some sound deadening to the doors. I may add an 8" subwoofer later, but for now the bass is satisfactory due to the naturalness of the sound.

Pros: Very smooth, natural, accurate, musical, detailed sound. Tweeters will reproduce highest musical frequencies. Will play loud, too. Can handle more power than rated, with ease.

Cons: None. Bass is as good or better than expected for its size.

Good sound, not very versatile

Written by: Pete from Encinitas, CA on August 9, 2013

2000 Dodge Viper
Crutchfield Customer Review (What's this?)

These speakers sound pretty good. I wasn't blown away by them, but they're solid. The grill is huge, and I had to cut it to fit into the car since it was in the door panel and stuck out enough to hit the dash. I had to abandon the screws that came with it as well as they are only designed to be used with the sheet metal nuts that came with them. The tweeters are only meant to fit either recessed or flush on a flat surface so I had to modify them as well to fit my cars curves.

Pros: Good sound, good value, looks nice

Cons: Not very versatile for installation, speaker grill too large

Details

Hands-on research

What's in the box?

Download the Polk Audio DXi6501 manual

  • 2 Woofers
  • 2 Woofer grilles
  • 2 Woofer spacer/adapter brackets
  • 2 Woofer foam mounting gaskets
  • 2 Tweeters (each tweeter has attached 34" speaker leads)
  • 2 Flush-mount tweeter cups (with tweeters installed)
  • 2 Metal flush-mount clamps
  • 2 Surface-mount tweeter cups
  • 2 Crossovers
  • Four 35" lengths of speaker wire (each has female quick-slides on one end and tinned wire on the other)
  • Fourteen 1" Self-tapping screws
  • Eight 3/8" Self-tapping screws
  • 8 Speed clips
  • Owner's manual (English/ Spanish/ French/ German/ Italian/ Portuguese)
  • Online registration information

Product Research

Woofers
Tweeters
Crossovers

Woofers

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 creates the least 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 woofer 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.

Mounting: Out of the box the DXi 6501 woofers are a direct replacement for many standard 6-3/4" applications. Mounting brackets are included with holes matching standard 6-1/2" (3-hole), Ford 6-1/2" (asymmetrical 4-hole), and various 6-3/4" applications. Without using the mounting brackets the speaker also fits into many standard 6-1/2" openings, but the four hole pattern is not a direct replacement (new screw holes would need to be drilled; in this instance mounting depth would be 1.947" and mounting height 0.427"; this application does not sort in the Crutchfield Vehicle Selector because using the mounting bracket requires no modification, and is therefore the preferred 6-1/2" mounting method).

Tweeters

Silk Dome Tweeters: The 1" liquid-cooled, silk/polymer composite dome tweeters provide clear, detailed highs.

Neodymium Magnets: Each tweeter employs a light-weight neodymium magnet for better efficiency.

Mounting: The supplied mounting cups allow you to surface or flush mount the tweeters. The tweeters swivel in the flush-mount housings, allowing you to adjust them for optimum imaging.

Tweeter Mounting Dimensions:

  Surface Mount Flush Mount
Mounting Height 1.030" 0.205"
Depth 0.21" (screw depth) 1.082"
Frame Diameter 2.051" 2.552"
Cutout Diameter N/A 2.018"

Crossovers

Design: The outboard 2-way Butterworth crossovers have a 12 dB/octave slope (high-pass and low-pass).

Tweeter Level Switch: You can adjust the output of the tweeter to match a level appropriate to your vehicle or your system. On the end of crossover (opposite the terminals) the switch can be set to -3 dB, 0 dB, or +3 dB.

Protection Circuit: Each crossover has a built-in electronic circuit that protects the tweeter from accidental overdriving.

Connections: The crossover inputs and outputs are screw terminals. The terminals will accommodate the included wire or spade connectors up to 0.3" wide.

Mounting: There are two mounting holes in the base of each crossover; the cover must be removed to install the mounting screws.

Crossover Dimensions:

  • Width: 3.477"
  • Height: 1.130"
  • Depth: 3.667"

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.

Accessories
Staff Reviews

Product reviews from the Crutchfield Labs

Four popular car speaker lines
by Robert Ferency-Viars

We listen to Alpine Type-S, Polk Audio DXi, Infinity Reference X, and Rockford Fosgate Punch car speakers in the Crutchfield Labs.

What are the Labs?
Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

Great price. Good quality. Previous good experience with Polk car audio. [ Gregory  Jul 17, 2016 ]
My home theater consists entirely of Polk Audio speakers and I LOVE them!. My wife blew the stock speakers out of the front of her Chevrolet Malibu so naturally I decided to go with Polk. These speakers really need an amp to go with them, but I was not let down with this decision! [ Nathan  Jul 05, 2016 ]
Needed budget speakers for the Suburban... Polk has great price and great sound! Can't beat'm! [ ANDREW  May 26, 2016 ]
good experience with Polk [ Rick  Apr 23, 2016 ]

4 questions already asked

Thanks for your question. For information on comparing two or more models I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences and help you make the best choice for your system and your budget. [ Krissy  Nov 23, 2015 ]  Staff
I can tell you personally that these will sound fantastic. I had a set of DXi 6501s in the front and a set of DXi 651's in back all hooked up to the KTU-445U power pack. I was able to crank then with crystal clear sound until my ears were ringing/cracking without the slightest bit of distortion. I had them hooked up in a 2013 Elantra Coupe and liked the system so much that I rebought it and now putting it in my 2012 Genesis coupe. [ Mike  May 23, 2016 ]
I forwarded your question to an Advisor and they responded with the following: These speakers will sound great with an Alpine KTU 445U power pack. 45w of power is more than enough to play clear audio at moderate/loud levels. The Polk speakers are fairly efficient, so they do not require as much power as most other speakers. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat. [ Krissy  Jan 13, 2015 ]  Staff
For the 6501s... no, you TECHNICALLY don't need an amp, but a standard aftermarket head unit is only continually pushing about 20 watts per channel. They will sound good, but not really any better than the dxi651s, the coaxial set, without a lot of power. You're better off saving your money if you aren't going to amplify these. However, I DO really recommend the 651s. They'll sound just as good if you aren't amplifying them. [ Derek  Apr 28, 2014 ]
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle. [ Krissy  Mar 17, 2014 ]  Staff
I don't see a picture listed for the grilles on this speaker. However, I would expect them to be similar to the grilles from other speakers in this line from Polk. [ Jeff  Nov 25, 2013 ]  Staff
Library