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Polk Audio DXi6501

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

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  • Polk Audio DXi6501

  • Polk Audio DXi6501

  • Polk Audio DXi6501

Item# 107DXI6501
 

Review Summary

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Expected: 5/1/2014
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Our take on the Polk Audio DXi6501

by John Pollard
Polk Audio

Why install component speakers?

A component speaker system gives you the best possible performance from your car audio system. A system consists of separate woofers, tweeters, and crossovers, each designed to cover one specific range of frequencies. As separate components, the woofer can move freely to deliver more powerful performance, while the tweeter can be custom-mounted in a better spot up closer to your ears, revealing a whole new world of detail. Separate crossovers are far superior to the simple filters wired into full-range speakers, so the components work together for smoother, more focused sound.

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.

Polk Audio DXi6501

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

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.

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
 

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

Features and Specs
General
Speaker Size
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6 3/4
Design
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2-way
Tweeter Design
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1" Dome
Tweeter Composition
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Silk/Polymer Composite
Woofer Composition
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Bi-Laminate Composite
Woofer Surround
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Rubber
Parts Warranty
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1 Year
Labor Warranty
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1 Year
Specifications
Sensitivity
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92 dB
Frequency Response
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35 - 23k Hz
RMS Power Range (Watts)
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10-100
Peak Power Handling (Watts)
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300
Impedance (Ohms)
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4
Top-mount Depth (Inches)
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2
Bottom-mount Depth (Inches)
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N/A
Cutout Diameter or Length (inches)
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5
Product Research
What's in the box?

Download owner's 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

Our Product Research Team

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

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"
 
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Polk Audio DXi6501 Reviews

Average Customer Review:

15 people say:

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Filter by rating:
3 out of 5

Decent if properly powered

Written By Rolls, Wichita, KS on Sunday, 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
1 out of 2 people found this helpful
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5 out of 5

Polk Audio DXi6501

Written By JC, Livonia, Mi on Thursday, March 27, 2014
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.
1 out of 1 people found this helpful
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5 out of 5

Polk Audio DXi6501

Written By Harvey, Charlottesville Va on Tuesday, 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
1 out of 1 people found this helpful
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5 out of 5

Great speakers with amazing sound

Written By MissMello, Boston Ma on Saturday, March 15, 2014
Crutchfield Customer Review (What's this?)
 
Good brand, sounds great in the jeep. Hoping they last a long time.
Pros:
Sounds good
Cons:
None
1 out of 2 people found this helpful
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5 out of 5

Polk Audio DXi6501

Written By Anonymous, Daytona Beach, FL on Monday, February 17, 2014
Crutchfield Customer Review (What's this?)
 
Yes
1 out of 3 people found this helpful
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5 out of 5

Polk audio

Written By Paul, San Diego on Saturday, February 01, 2014
Crutchfield Customer Review (What's this?)
 
Crisp clear sound. Great speakers
Pros:
Price- got them on sale
1 out of 2 people found this helpful
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5 out of 5

fantastic speakers

Written By erik, Columbia, sc on Monday, December 30, 2013
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
1 out of 2 people found this helpful
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5 out of 5

Polk Audio DXi6501

Written By Paul Jr, Rhode Island on Thursday, December 26, 2013
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.
3 out of 3 people found this helpful
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4 out of 5

Polk Speakers for VW

Written By ChilliGal, Hawaii on Tuesday, December 03, 2013
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
2 out of 2 people found this helpful
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5 out of 5

Component Upgrade

Written By JD, San Antonio, TX on Monday, November 18, 2013
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.
2 out of 2 people found this helpful
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5 out of 5

Polk Audio DXi6501

Written By J, Tyler, Texas on Monday, November 04, 2013
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
1 out of 2 people found this helpful
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5 out of 5

Excellent natural sounding speakers

Written By Brent, Richland, Wa on Sunday, November 03, 2013
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.
3 out of 3 people found this helpful
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5 out of 5

Polk Audio DXi6501

Written By petet, medford ma on Saturday, October 12, 2013
Crutchfield Customer Review (What's this?)
 
Bass is rohbust
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4 out of 5

smooth, wide range

Written By DaveL, Seattle, WA on Monday, 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.
4 out of 4 people found this helpful
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3 out of 5

Good sound, not very versatile

Written By Pete, Encinitas, CA on Friday, August 09, 2013
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
3 out of 10 people found this helpful
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2 questions already asked

I have a Sony CDX-GT210 do I need an amp to run these or will it sound nice? [ Joeinchains  Mar 17, 2014 ]
1 answer
  • 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 Staff  Mar 17, 2014 ]
I can't find pictures of the woofer grills that come with these speakers i was just wondering what they look like or where i could find a picture? [ Jacob  Nov 25, 2013 ]
1 answer
  • 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 Staff  Nov 25, 2013 ]

Add accessories for the Polk Audio DXi6501

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For a more in-depth review and enhanced detailed information on the Polk Audio DXi6501, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_107DXI6501/Polk-Audio-DXi6501.html ).