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Polk Audio db651

6-1/2" 2-way car speakers — for 6-1/2" and 6-3/4" openings

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Our take on the Polk Audio db651

by Leigh Schoettinger
Polk Audio

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.

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

Polk's db651 speakers feature 6-1/2" woofers made from a polymer/mica composite and durable rubber surrounds that won't fall apart under stress from heat, moisture, or time. Liquid-cooled 3/4" silk/polymer dome tweeters use powerful Neodymium magnets to deliver precise high-frequency reproduction, enveloping you in bright musical detail. And you can even pivot the tweeters, aiming them at your ears for improved stereo imaging. The built-in two-way crossovers keep the high and low frequencies flowing to the proper drivers for seamless, efficient audio.

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

The supplied adapter rings enable the db651 speakers to fit into both 6-1/2" and 6-3/4" openings, ensuring an easy fit into VWs, Audis, BMWs, and other European imports.

Highlights:

  • 6-1/2" 2-way car speakers (pair)
  • supplied adapter rings allow for fit into 6-3/4" locations
  • Dynamic Balance polymer/mica composite woofer with butyl rubber surround
  • 3/4" pivoting liquid-cooled silk/polymer composite dome tweeter
  • Neodymium tweeter magnet
  • Kapton voice coil
  • built-in 2-way crossover network
  • ABS wheel-design grilles
  • stainless steel mounting hardware
  • power range: 6-60 watts RMS (180 watts peak power)
  • frequency response: 35-22,000 Hz
  • sensitivity: 92 dB
  • top-mount depth: 1-11/16"
  • warranty: 1 year
  • Our 60-day money-back guarantee

Priced per pair

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

Features and Specs
General
Design 2-way
Tweeter Design 3/4" Dome
Tweeter Composition Silk/Polymer composite
Woofer Composition Polymer/Mica composite
Woofer Surround Butyl rubber
Parts Warranty 1 Year
Labor Warranty 1 Year
Specifications
Sensitivity 92 dB at 1 watt
Frequency Response 35 - 22k Hz
RMS Power Range (Watts) 6-60
Peak Power Handling (Watts) 180
Impedance (Ohms) 4
Top-mount Depth (Inches) 1 11/16
Bottom-mount Depth (Inches) N/A
Cutout Diameter or Length (inches) 5
Product Research
What's in the box?

Download owner's manual

  • Two 2-way speakers
  • 2 Grilles
  • 8 Self-tapping screws (length=1")
  • 8 Speed clips
  • 2 Spacer/adapter brackets (includes GM/Chrysler 6-3/4G)
  • 8 Self-tapping screws (length=3/8")
  • 2 Foam rubber gaskets
  • Owner's Manual (Eng/Span/Fren /Ger/Ita/Port)
  • Online registration sheet

Scratch & Dent items may be missing non-essential accessories. In some cases the manufacturer's accessories have been replaced with generic equivalents.

Our Product Research Team

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

Features

Dynamic Balance: Dynamic Balance is a proprietary Polk Audio technology using laser imaging to determine what combination of speaker materials create the least amount of resonance. Eliminating resonance in speakers results in a wide, smooth response and low distortion.

Woofer Cones: Each speaker features a Dynamic Balance polymer/mica composite mineral-filled cone. The cones are stiff and lightweight for big sound and low distortion.

Butyl Rubber Surrounds:For a smoother response and improved durability, the woofers use butyl rubber surrounds.

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

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

Pivoting Tweeter: The tweeter pivots, allowing you to to aim it toward your listening position for better imaging.

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

Mounting Ring: The supplied mounting ring has mounting holes for both 6-1/2" and 6-3/4" applications, allowing the speaker to fit more vehicles. In most cases, the ring should be used to mount the speaker.

Grilles: Strong ABS plastic grilles are included. These computer optimized grilles are based on exclusive MOMO designs.

 

Product reviews from the Crutchfield Labs (what are the Labs?)

Video: Polk Audio db Car Speakers

Video: Polk Audio db Car Speakers

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

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

 
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Polk Audio db651 Reviews

Average Customer Review:

170 people say:

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5 out of 5

Great sound

Written By JP, Charlotte,NC on Monday, October 13, 2014
 
Great sound! Installed in 2012 Honda Civic sedan with Kenwood dnx691hd driving. Plays loud and clear with nice bass.
Pros:
Clear highs, mids, and nice bass.
Cons:
Non
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4 out of 5

Great deal

Written By Gareth, Seattle, WA on Friday, October 03, 2014
Crutchfield Customer Review (What's this?)
 
Installed in 2 pairs in a new car with stock HU so they are limited by a lack of power. They are still a noticeable improvement over the stock speakers. The construction quality seems excellent. My first purchase from Crutchfield and I am very happy. The included install instructions and the wire bracket to attach to the stock wiring was nice to have as I installed these in a leased car.
Pros:
Good clarity and range. Great price
Cons:
A little too bright for my taste - I feel the same way about Infinity speakers that I have heard - but with an amp and a sub and more eq control I'm sure I would be very happy with the sound.
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5 out of 5

Best speaker for the money!!

Written By Anonymous, Missouri on Wednesday, September 10, 2014
Crutchfield Customer Review (What's this?)
 
This speaker cannot be beat!! Excellent efficiency with internal crossover. Sounds great without amplification!
Pros:
Efficiency with internal crossover.
Cons:
Nothing.
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4 out of 5

Good speaker for the price

Written By Patrickokc, KC on Saturday, August 30, 2014
Crutchfield Customer Review (What's this?)
 
I upgraded the factory Bose speakers in the front doors of my 2011 Tahoe. I think one of the factory speakers was blown, and they easily distorted at higher volume. The Polk's were definitely an improvement, although not as major as I had expected. Good highs/mids, not a ton of bass (which I didn't expect from a speaker in this price range). Fast shipping from Crutchfield. Included instructions weren't bad, but I'd recommend doing some Internet research on pulling your door panels if you're not familiar with doing it.
1 out of 1 people found this helpful
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5 out of 5

Polk Audio db651

Written By Anonymous, goodview va on Friday, August 22, 2014
Crutchfield Customer Review (What's this?)
 
Very satisfied it was a easy installation
Pros:
Great sound and a direct fit
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4 out of 5

Polk Audio db651

Written By Anonymous, herndon pa on Thursday, August 21, 2014
Crutchfield Customer Review (What's this?)
 
nice crisp sound
Pros:
like the mid range and clearity of the speaker
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5 out of 5

Polk Audio db651

Written By Anonymous, Lemont.IL on Sunday, August 17, 2014
Crutchfield Customer Review (What's this?)
 
A+A+A+
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5 out of 5

polk audio db651

Written By Missy, Gonzales, Louisiana on Saturday, August 09, 2014
Crutchfield Customer Review (What's this?)
 
Speakers sound great!
Pros:
Easy installation, great sound and price
Cons:
none yet
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5 out of 5

Great Speakers

Written By DaveE, Bear Lake, MI. on Wednesday, July 02, 2014
Crutchfield Customer Review (What's this?)
 
Very easy to install. Installed in my Mastercraft ski boat and sound awesome. Of course nothing but the best customer service from Crutchfield. Great price, fast free shipping.
Pros:
Again, very easy to install and sound great.
Cons:
None
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5 out of 5

Beautiful Sound

Written By Zig, Fresno, CA on Wednesday, June 25, 2014
Crutchfield Customer Review (What's this?)
 
Great speakers. I bought a set for my car and was so satisfied with the sound I bought a set for my truck. Awesome sound.
Pros:
The installation instructions made it easy. I have bad hearing. as it is, but these bad boys allow me to hear and enjoy the sounds I've been missing.
Cons:
None.
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5 out of 5

Bought for Rear Ext Cab in Silverado

Written By SJ E, Boston, MA on Tuesday, June 24, 2014
Crutchfield Customer Review (What's this?)
 
I bought these for the rear of my 2007 NBS Silverado Ext Cab. Little tweaking with the bracket and install was complete. Sound is fantastic. Much better than stock. The clarity and detail is great. Makes you go through your music selection again to hear the new details. I put the DB6501 up front and these in the back. I listen to mostly metal, hard rock, and blues and these handle it all with ease. No shrill, no loss of mid, just a great all around speaker. If you are on the fence, just buy these.
Pros:
All
Cons:
None
2 out of 2 people found this helpful
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5 out of 5

Awesome Sound

Written By apm300, Grove City, PA on Tuesday, June 17, 2014
Crutchfield Customer Review (What's this?)
 
Bought another set of these for the rear after hearing how great the fronts were. Probably could have lived with the fronts alone, but thought a matched set was prudent.
Pros:
Great sound, very powerful.
Cons:
None.
1 out of 1 people found this helpful
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5 out of 5

Sound Great!

Written By SteveK, Syracuse, NY on Sunday, June 15, 2014
Crutchfield Customer Review (What's this?)
 
Installed these in the rear doors of my '09 Subaru Forester (paired with DB651S in the front and powered by 22 watt JVC head unit) and they sound so much better than the stock factory speakers. I put them through their paces with a variety of music from driving drums and bass to intricate instrumentals to subtle vocals. Everything sounded tremendous, although I did detect some buzziness when I boosted the bass level on the EQ. However, this may be a result of my installation - I'll check it in the coming days - as I installed the rear doors first before I was completely confident of what I was doing.
Pros:
Great sound reproduction. Well made. Fit vehicle well. Efficient (produce much more sound than factory speakers at the same volume level).
Cons:
Nothing yet.
2 out of 2 people found this helpful
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4 out of 5

db651's area nice speakers

Written By jack, PENNA on Tuesday, June 10, 2014
Crutchfield Customer Review (What's this?)
 
EASY TO INSTALL AND SOUNDS GREAT; REPLACED ALL FOUR IN THE 05 TAHOE
Cons:
KINDA "BOOMY" AT TIMES
1 out of 1 people found this helpful
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5 out of 5

Awesome quality!

Written By Subaru crosstrek install, Charlottesville, va on Sunday, June 08, 2014
 
Love em
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5 out of 5

Fantastic sound

Written By TB 56, Kansas on Monday, May 26, 2014
Crutchfield Customer Review (What's this?)
 
The Polk speakers recommended by the experts at Crutchfield did a great job assisting me with the upgrade. I used the Polk speakers as an upgrade from the factory Bose speakers and I couldn't be more pleased. These speakers were a definite upgrade from what I had previously in my Tahoe. The sound is much more complete and the fit was good as well. Great speakers !
Pros:
Great fit with minimal work during the install. Very full sound across all frequencies. Well built speakers that should last a long time.
Cons:
Some reworking had to be done to fit these into my rear door cutouts. Small plastic tabs on the door had to be ground off with a Dremel tool. This only took a few minutes to correctly place the speakers into the rear doors.
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4 out of 5

Polk Audio db651

Written By Anonymous, Jerseyville, IL on Thursday, May 22, 2014
Crutchfield Customer Review (What's this?)
 
Sounds great, good clear sound. Definitely a quality speaker especially at the price range they are at.
Pros:
Price, Clarity, Construction
Cons:
Not as much bass as I would like
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5 out of 5

Great speakers

Written By Aaron, Somerset, WI on Sunday, May 18, 2014
Crutchfield Customer Review (What's this?)
 
Very detailed speakers, not a lot of bass but very clean and amazing highs.
Pros:
Sound and price.
Cons:
Nothing yet
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5 out of 5

Super Loud and Clean

Written By JJones, South Carolina on Monday, March 17, 2014
Crutchfield Customer Review (What's this?)
 
I installed these speakers in the front doors of my 2010 chevy silverado extended cab and they were perfect. They are super loud and very clean and crisp sounding. You can hear clearly from about 10 feet outside of the truck when my stock radio is turned up all the way. They don't have great bass, but it certainly isn't bad.
Pros:
loud, clean
Cons:
distort at high bass
2 out of 2 people found this helpful
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5 out of 5

Polk Audio db651

Written By Jess, Massillon, ohio on Wednesday, February 26, 2014
Crutchfield Customer Review (What's this?)
 
They sound great. Was everything I was hoping for with a factory radio.
Pros:
A huge upgrade from the factory speakers
2 out of 2 people found this helpful
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5 out of 5

Polk Audio db651

Written By E D V, CA, on Saturday, February 08, 2014
Crutchfield Customer Review (What's this?)
 
Very Good
1 out of 2 people found this helpful
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5 out of 5

Awesome speakers

Written By Jerry, CA on Thursday, January 02, 2014
Crutchfield Customer Review (What's this?)
 
Great speakers. Vocals are particularly clear.
Pros:
Awesome sound
Cons:
a little pricey, but I think they're worth it.
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5 out of 5

Great speakers

Written By Audiotech, Michigan on Wednesday, January 01, 2014
 
These speakers sound great great highs,mids,lows
Pros:
Sound great in my front door speakers
Cons:
Wont fit in the rear deck of my car unless i get the slim db6501s but i knew that before purchase
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5 out of 5

Polk Db651

Written By Engguy, Georgia on Thursday, December 26, 2013
Crutchfield Customer Review (What's this?)
 
2nd time I have bought from Crutchfield. Installed in rear door of 2005 Nissan Frontier. Pretty straight forward, did have to drill out the mounting plate holes as they were way to small to get the speaker screws started straight. Also had to extend the bottom mounting whole a quarter of inch to match factory door mount. Any way speakers sound great! Bass for classic rock hits pretty hard. Powered by a 25watt JVC head unit I bought last year. Was going to get amp and sub next year but might not have too. Can hardly wait to hear speakers once they are broken in, since I have heard they sound better after a several hour breakin.
Pros:
Sound is great for classic rock. Bass was much better them expected when I listened to Boston's More Than A Feeling. Also sounds great when playing the 1812 Overture.
Cons:
Mounting bracket had to be drilled, speed clips provided by Polk had to be removed in order to fit in factory mount.
2 out of 2 people found this helpful
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5 out of 5

Good speakers for the money

Written By Chris Edwards, Chattanooga, TN on Friday, December 06, 2013
 
Great sounding speakers for the money. I put 6 of them on our houseboat with two JBL marine amps. Plenty loud enough.
Pros:
Price, sound good and well built.
Cons:
None
1 out of 1 people found this helpful
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1 out of 5

Factory speaker upgrade

Written By Gary, Los Angeles, CA on Thursday, December 05, 2013
Crutchfield Customer Review (What's this?)
 
My 2011 Silverado 2500HD came with a Bose Audio System. You would think that if Bose was going to put their name on something and maybe introduce someone that has never heard any of their product before, they would want to do a lot better than this. After upgrading the front speakers to the Polks there was definitely an improvement. Brighter and smoother top end and a little less distortion at louder levels. But not a significant change.
Pros:
Better high frequency response than the factory speaker. Less distortion.
Cons:
Not worth the cost and labor. Looks like to get the improvement I expected I'll have to revamp the whole system.
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5 out of 5

Let the music flow.

Written By AW, Bartlesville, OK on Sunday, December 01, 2013
Crutchfield Customer Review (What's this?)
 
Both the Polk Audio db651 & db651s sound great with my stock 2006 GMC Sierra Crew Cab truck radio. As expected the radio volume is turned up just a bit as the speakers use more amps. My design criteria was to replace speakers and have a clearer sound. The base is adequate for my ears that are north of age 50. Now I'm back to cleaning & detailing the truck.
Pros:
The speakers preform and sound better than the factory speakers.
1 out of 1 people found this helpful
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3 out of 5

Front door apeakers

Written By Scott b, Austin tx on Sunday, November 24, 2013
Crutchfield Customer Review (What's this?)
 
Decent amount of brightness but not much else
Pros:
Bright
Cons:
No bass at all
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3 out of 5

Okay

Written By Mike F., Temecula, California on Wednesday, November 06, 2013
Crutchfield Customer Review (What's this?)
 
These sound okay but could be better. Maybe because it's only 6.5"? I got these to replace my 6x9's because the tech guys at Crutchfield told me that aftermarket 6x9's will not fit. I would have to get 6.5" with adapter plate. Well, I tried that and they fit but the sound size is very small compared to my stock 6x9's, so I returned these speakers back to Crutchfield. I did some sizing up and had bought some Polk 6x9 speakers. The tech was right that they didn't fit but, all I needed is an adapter ring for the 6x9. And guess where I found one? I used my stock Toyota 6x9 speakers and removed the cone and installed the new aftermarket 6x9 into the Toyota adapter. WaLa! It fit perfectly! And it sounds great too! I don't know why I haven't seen any tech forums suggesting this. It was so easy! Plus, I didn't need a wiring harness; I just soldered some new speaker wires onto the existing Toyota connector. Can you say plug and play?
Pros:
If you have a Toyota Tacoma you can use an aftermarket 6x9's as long as you reuse the Toyota adapter.
Cons:
Too small of sound!
1 out of 2 people found this helpful
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5 out of 5

Polk Db651 2006 Harley Ultra Classic Rear seat side install

Written By Kevin, Kissimmee, Fl on Wednesday, October 23, 2013
 
Excellence these are installed where they said it couldn't be done!
Pros:
Waterproof Legendary Polk Sound on a Harley
Cons:
None
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5 out of 5

Great speakers

Written By Matt, Ohio on Saturday, October 19, 2013
Crutchfield Customer Review (What's this?)
 
The db651 is a nice speaker. Very smooth highs with no harshness and ample bass--it really moves some air. Sound MUCH better than VW Jetta MKVI factory speakers. I had the Polk DXi series installed in a different car with a different head unit. They were nice too, but I like the db series better. The DXi series seemed too sharp on the high end. Not the case with these.
Pros:
Smooth highs. You can adjust the tweeter.
Cons:
None with the speakers themselves. If you are installing in a VW Jetta Mk VI, the speakers will be a good 1.5" away from the door panel--Crutchfield doesn't supply a spacer like the factory speakers have, so some of your sound will get lost behind the door panel. Crutchfield has no installation instructions for the Jetta MKVI either. Really? The top selling VW car? Come on, Crutchfield.
1 out of 1 people found this helpful
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5 out of 5

Polk Audio db651

Written By John, San Jose on Thursday, October 10, 2013
Crutchfield Customer Review (What's this?)
 
Great Sound, Great Value Easy Installation!
Pros:
Great Sound, Great Value Easy Installation!!!
Cons:
None
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5 out of 5

Awesome, fits 2012 Wrangler Unlimited soundbar

Written By Tony T, Military Base on Saturday, October 05, 2013
 
On Crutchfield, 2012 Jeep JKU says db651s fits sound bar and 651 does not. This is incorrect. The DB651 does indeed fit, but you have get rid of the stock grill cover and use the polk ones. I did this, and painted it matte black, and it looked stock
1 out of 1 people found this helpful
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5 out of 5

great bang for the buck

Written By dsgerlach, louisa, va on Thursday, September 26, 2013
 
Great Product At A Great Price. Don't Hesitate With Purchasing These Excellent Speakers For A More Than Standard Upgrade To Your Existing Factory System
Pros:
Even Install, Great Balance From Lows To Highs.
Cons:
n/a
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5 out of 5

Simply Amazing!

Written By Tracy, Twin Cities area, MN on Saturday, September 21, 2013
Crutchfield Customer Review (What's this?)
 
Finished installing these earlier today, and I already love them! They replaced an older set of Polk's that had been driven hard for eight years and finally wore out, (model db650, bought here from Crutchfield back in 2005). These newer db651's are everything I hoped they would be. I have a 12-inch subwoofer, so I was unconcerned from the start about whether these Polks had good bass or not. Using the head unit's high-pass filter, I cut off frequencies below 80Hz to these Polks. Just love the warm tweeters! Marvelous! I absolutely love these Polks! The warmth of the tweeters is the very reason I bought db's a second time.
Pros:
Clear and warm sound quality. Absolutely delightful!
Cons:
Crutchfield's fit guide does not appear to be entirely accurate for my vehicle. I installed these in a 2003 Dodge Dakota club-cab. Fit-guide says these don't fit in the front door location. I think this might be true if attempting to re-use the Dodge factory bracket, which make the speakers protrude out approx. ¾-inch from the door's sheet metal, but it is not necessary to use the Dodge bracket. You can use the included Polk bracket or the Crutchfield supplied Scoche bracket and mount direct
1 out of 1 people found this helpful
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5 out of 5

Works for me!

Written By MarkU, Panhandle FL on Sunday, September 15, 2013
Crutchfield Customer Review (What's this?)
 
These replaced front door speakers in 08 Tundra double cab. Hooked up to stock head unit. Much better, clearer sound. Now for the rear speakers......
Pros:
Painless install, fit perfect, no surprises.
Cons:
None
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5 out of 5

Distinct improvement over stock

Written By Girish V, Hinsdale, IL on Saturday, September 07, 2013
Crutchfield Customer Review (What's this?)
 
I replaced the last two of the rear stock speakers with these and the sound stage definitely sounded so much more improved. Vocal sound really nice and I can hear words I had never heard with the stock. String instruments definitely sound much better. Bass is not the best, but I do not expect much since I need to add a subwoofer for that.
Pros:
Better vocals, string instruments; great price and look very sturdy and well made.
Cons:
Not the best bass,
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5 out of 5

Great speakers!

Written By P, San Diego on Tuesday, September 03, 2013
Crutchfield Customer Review (What's this?)
 
Easy to install and sound great!! Highly recommend installing an amp. I used the Alpine MRP-F300 and made my deck sound awesome! Highly recommend installing a sub if you don't have one already!
Pros:
Easy install with the included parts and hardware.
Cons:
None yet!!
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5 out of 5

Crisp

Written By Rob, omaha, nebr on Tuesday, August 13, 2013
Crutchfield Customer Review (What's this?)
 
I was a little hesitant on buying these as I figured crutchfield was just trying to sell polk and I was looking at another name brand but went ahead and ordered these. They came several days later and I installed them in my denali which was super easy. The music that came out was nice, crisp and clear so I am happy to have them. I have a factory amp and these speakers come alive. As everyone else has said if you want bass then add subs which I did and the polks complement the entire sound system. If you want great highs mixed with mids then buy these polk speakers you cant go wrong.
Pros:
price, ease of install, and sound quality.
Cons:
none
1 out of 1 people found this helpful
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5 out of 5

Excellent Speakers

Written By RandyL, Orlando, FL on Sunday, July 21, 2013
Crutchfield Customer Review (What's this?)
 
Recently I purchased a 2011 GMC Sierra truck. Unfortunately the stock speakers were so poor all music was muted and muddy. I knew Crutchfield could solve my problem and did so with the Polk db651 pair of 6 1/2 inch speakers that I installed in both doors. Highs are beautiful, mids are clear so the song words can be understood and the bass is nice and tight.
Pros:
Installation instructions and all necessary hardware to install the speakers included. Nothing was left to guess at!
Cons:
Nothing
2 out of 2 people found this helpful
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5 out of 5

Polk speakers

Written By Mike, Beaver Falls, PA on Friday, June 21, 2013
Crutchfield Customer Review (What's this?)
 
Easy installation and the speakers have a pretty good sound even with the factory radio.
Pros:
Good sound and easy to install in our 2006 Silverado.
Cons:
None so far.
1 out of 1 people found this helpful
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5 out of 5

Outstanding Speakers

Written By Derrick, NJ on Wednesday, June 19, 2013
 
Great sounding speakers for the money! At first i didnt like the amount of bass that they produced and was a little worried about it. Then roughly 1 month later they completely blow me away!! Alot of people seem to not know about a speakers break in time to really shine you need at least 80 to 100 hours of break in time and within that period do not turn them up past 3/4 of the volume if it is connected to a head unit and 1/2 way if connected to an amplifier. Trust me it is well worth the wait!!!!
Pros:
Best 6.5 speakers for the money!!! Deep satisfying bass around 50hz and the mids are clean and highs are on the flat note (unlike infinity) which is the kind of sound i prefer!
Cons:
The fact that we have to break the speakers in!!!
1 out of 1 people found this helpful
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4 out of 5

Polk Audio db651

Written By DaveR, CT on Monday, June 10, 2013
Crutchfield Customer Review (What's this?)
 
Great speaker and a significant upgrade to the sound. Did not fit the door, or the supplied adaptor kit. I would have had to use the speaker adapter to mount it on the separate adapter kit and that would have had to be modified to fit the car door I wound up modifying the original speaker/mount and attaching the speakers directly to that
Pros:
Great sound. Decent price
Cons:
Did not fit, supplied mount adapters did not fit. Took some energy to adapt original speaker/mount
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5 out of 5

Big Improvement

Written By Paul, New Jersey on Saturday, May 25, 2013
Crutchfield Customer Review (What's this?)
 
These speakers sound so much better than the stock VW speakers in my daughter's 2011 Jetta that we may not look to install a subwoofer in the future.
Pros:
Reasonable Price Excellent Sound
Cons:
No real issues
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5 out of 5

These rock!

Written By Mark, Brookville,IN on Sunday, April 28, 2013
Crutchfield Customer Review (What's this?)
 
These sound great! Good bass sound and crisp mids and highs.
Pros:
Excellent replacement for my 04 Silverado
Cons:
None
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4 out of 5

like em

Written By Abe, Texas on Monday, March 18, 2013
Crutchfield Customer Review (What's this?)
 
I got these along with the shallows. The site said that they would only fit up front. I took a chance and got the shallows for the back doors and was also able to get the adapters and wire kits. Sound is an upgrade. If u want bass get sub to go along. Not bad set of speakers though.
Pros:
Clear sound
Cons:
Not much bass
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5 out of 5

Polk speakers

Written By Alvin, Mayaguez, PR on Tuesday, March 12, 2013
Crutchfield Customer Review (What's this?)
 
Good speakers and good sound in my 1990 Montero. Custom instal in front door.
Pros:
Vocal sound good.
Cons:
Low bass no good.
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5 out of 5

Fantastic!!

Written By Rich, USA on Monday, March 11, 2013
Crutchfield Customer Review (What's this?)
 
I installed these in my 2011 Chevy Silverado 2500HD Crew Cab. The speaker adapters and speaker wire harness connectors Crutchfield provides makes the job so incredibly easy! The master instruction guide from Crutchfield is awesome. Took me longer to take the door panels off then it did to install the speakers. The difference between stock speakers and these polks cannot even be compared. So much better! Also, I have a Alpine amp pushing these and they can handle every bit of power you feed them.
Pros:
Great sound. Great quality Great Mid range
Cons:
Wish had a bit more low end
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5 out of 5

polk audio

Written By kj, Cherokee on Friday, March 01, 2013
Crutchfield Customer Review (What's this?)
 
Great sounding speakers
Pros:
Fits in vw jetta 6 3/4 holes front and rear with out any spacers just have to drill 4 new holes simple
Cons:
None
1 out of 1 people found this helpful
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4 out of 5

Polk Audio db651

Written By Anonymous, Baton rouge, LA on Monday, February 25, 2013
Crutchfield Customer Review (What's this?)
 
Great. Even marine grade. they have built in tweeters so if you looking for bass this isn't them. If you want to upgrade to a nice stereo these are great mids and high speakers. They are very loud and crisp.
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5 out of 5

Good Speakers at a decent price

Written By Ed, Boston, MA on Monday, February 18, 2013
 
One of my factory installed speakers died in my almost 9 year old truck. So I had them all replaced & professionally installed with these speakers. They sound great. I am not an audiophile but they sound 100x better than my original truck factory speakers...They fact that they are paired up with my none factory Sony explod head unit makes a huge difference..
Pros:
Great sound.
Cons:
Too hard to install them yourself
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5 out of 5

Polk Audio db651

Written By legin, Hilo,HI on Friday, February 15, 2013
Crutchfield Customer Review (What's this?)
 
bought these polks to replace the factory speakers in my new kia soul. the difference is night and day, the polks handle everything the factory stereo can dish out. they sound great, good bass response clean highs, nice speakers.
Pros:
great sounding speaker. if you can follow instructions and have basic tools its easy.
Cons:
rear speaker bracket did'nt work with these speakers, mounting holes exceeded the diameter of the bracket.
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5 out of 5

Polk Audio db651

Written By W.L. Buntin, Danville, VA on Thursday, February 07, 2013
Crutchfield Customer Review (What's this?)
 
I recently purchased a 2005 GMC Serria 1500 Crew Cab and the door speakers were shot. I decided to replace them with the Polk Audio db651 speakers and I couldn't be happier with my choice. The installation was fairly easy and the adaptors included made the speaker wire connections a snap. Just be sure to watch the video on YouTube first to make getting the door panels off eaiser. If you're not handy with a drill and figuring out how to adapt the front speakers to fit, you might want to get a friend to help. The speakers sounded a little flat at first but after a few days they sounded great. Good bass, midrange and treble. If the CD player in my stock radio wasn't broken I wouldn't change it. That will be my next project and I'll probably come back to Crutchfield for that.
Pros:
Great sound
Cons:
None so far.
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4 out of 5

Awesome Speaker

Written By RonF, Lake Charles, LA on Thursday, January 31, 2013
Crutchfield Customer Review (What's this?)
 
For the money, the speakers sound so much better than originals! Crutchfield Team made this installation as simple as it can get! Very happy with the advice received on the whole audio setup!
Pros:
Clean sound, all connections worked as advertised
Cons:
Directions supplied were mostly helpful except the disconnecting of the door release cable bracket and electronic connectors for door locks and windows.
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5 out of 5

polk speakers

Written By Otis J, Riverside, CA on Saturday, January 12, 2013
Crutchfield Customer Review (What's this?)
 
they work and sound great. it was well worth the money.
Pros:
look and sound good.
Cons:
none yet
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5 out of 5

Great

Written By Marek, Des Plaines on Sunday, December 16, 2012
Crutchfield Customer Review (What's this?)
 
The best Speakers EVERRRR!!!!
Pros:
The Best
Cons:
NONE
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5 out of 5

Great Speakers

Written By JohnD, Kansas City, MO on Saturday, September 29, 2012
Crutchfield Customer Review (What's this?)
 
I got these to go with my JVC head unit in my truck and they sound great. I've had a lot of good experience with Polk DB speakers in the past and these were even better than I thought. I was expecting the bass to be non-existent or very weak, but they are very well rounded and actually thump a little depending on the music. (Your results may vary...it may just be my truck door cavity carries the low notes better than other car doors.) Of course the highs and mids are very good, which is pretty much a given for most Polk speakers and why I chose these in the first place. I bought some pioneer 6.5" speakers for half the price of the Polks to put in the rear just for fill and they sound crappy compared with the Polks. If I had to do it again I would probably get another pair of Polks for the rear, but oh well. That's what you get for trying to save money. Overall they are a great sounding co-axial speaker and worth the price. They are probably about as good as it gets for this configuration unless you step up to component speakerI would highly recommend them to anyone looking for a well performing speaker in this price range.
Pros:
Great sound, well rounded, good value for the price
Cons:
Don't like the grille cover design, but I didn't need them as they are behind the factory door panel screens anyway
1 out of 1 people found this helpful
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5 out of 5

Excellent Value

Written By Derek, Lehigh Valley, PA on Monday, September 17, 2012
Crutchfield Customer Review (What's this?)
 
This past weekend I replaced all 4 door speakers in our 2013 Kia Sportage with these units, and the improvement was definitely more than I anticipated. My wife is no audiophile, but she immediately noted the brighter and crisper treble, as well as the tighter, deeper, and more accurate bass response. With the 2013 Sportage, you do NOT have to use the "slim" versions of these speakers, and the factory head unit has more than enough power to drive them.
Pros:
Excellent performance for the money
Cons:
None whatsoever
2 out of 2 people found this helpful
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5 out of 5

Polk Audio db651

Written By RLH, Omaha, Nebraska on Sunday, September 09, 2012
Crutchfield Customer Review (What's this?)
 
Clear precise sound is my opinion of this product. A driver of this size is not capable of delivering a lot of bass, but neither is any other driver of this size. If you want bass you need to buy an apropriate subwoofer. As to the value, I cite the law of diminishing returns. You would have to spend a lot more for an incremental inrease in quality.
Pros:
Accurate and a good value
Cons:
None at this time.
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4 out of 5

Improvement over OEM

Written By JayK, Fort Wayne, IN on Wednesday, June 20, 2012
Crutchfield Customer Review (What's this?)
 
Installed these in a 2008 GMC Sierra. They play louder with less distortion than stock speakers and the musical details are more pronounced. Cleaner sound with tighter bass response. Not more bass than stock but better bass than stock. Overall I'm pleased with the speakers. This was step one. Next will be the head unit and a JL Audio Stealthbox to complete the audio overhaul.
Pros:
Clean, loud with tighter bass
Cons:
None
1 out of 1 people found this helpful
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5 out of 5

harley davidson ultra classic

Written By Chuck, Fort Washington on Monday, June 18, 2012
Crutchfield Customer Review (What's this?)
 
I placed the speakers in my Harley Davidson motorcycle to replace the stock ones, and what a big difference. I thought I would need an amp but I didn't. The factory speakers were the problem, my radio just had to be unleased.
Pros:
Love them. Also the tweeters swivel.
Cons:
None yet.
1 out of 1 people found this helpful
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5 out of 5

Great speakers

Written By Marlin K, Lubbock,Texas on Tuesday, June 12, 2012
Crutchfield Customer Review (What's this?)
 
Big fan of Polk, been using Polk speakers for years not one complaint. Bought these DB651 s for use in a boat (they are marine certified) and they sound great. I have two pair of these with a 4 channel 400 watt amp and they are great, even good bass for what/where they are
Pros:
excellent sound quality-especially for the price plus marine certified
Cons:
none
2 out of 2 people found this helpful
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5 out of 5

Performs for the price - 2008 Vibe

Written By Karl K, Chicago IL on Monday, June 11, 2012
Crutchfield Customer Review (What's this?)
 
Installed with ease and sounds great paired w/Sony CDX-GT700HD.
Pros:
Good Bass for a door mount (front)
Cons:
unless you use the provided grills, you have to set the tweeter direction before putting the door panel on.
3 out of 4 people found this helpful
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5 out of 5

speaker review

Written By Awsome sounding speakers, East Brunswick, N.J. on Tuesday, May 29, 2012
Crutchfield Customer Review (What's this?)
 
I can not believe what great sound is comming out of the Polk db651's......
1 out of 2 people found this helpful
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5 out of 5

Polk Audio db651

Written By Kevin H, Livingston,La on Monday, May 14, 2012
Crutchfield Customer Review (What's this?)
 
These speaker's rock. Clarity, performance, power handling. We absolutely love them.
2 out of 2 people found this helpful
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5 out of 5

Polk Audio db651

Written By Zack M, Evansville, IN on Thursday, May 03, 2012
Crutchfield Customer Review (What's this?)
 
These sound really good in my 2000 VW Beetle. Admittedly they are a little weak on bass, but I also installed subs, so I wasn't really looking for much bass.
Pros:
Great sound
Cons:
Weak bass
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5 out of 5

Good Product

Written By Greg, Derby KS on Tuesday, April 24, 2012
Crutchfield Customer Review (What's this?)
 
The product seems good I searched for these using the factory radio as part of my search criteria; the speakers really need more power than the factory radio puts out. I'm not sure if I should return them or buy more watts.
Pros:
great brand product looks awesome
Cons:
Not really compatible wit the factory radio. Needs a amp.
1 out of 2 people found this helpful
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5 out of 5

The speakers sound great

Written By Anonymous, Paulina,La. on Friday, April 20, 2012
Crutchfield Customer Review (What's this?)
 
I replaced my stock speakers in my 2010 GMC Sierra with these POLK's and I am very happy with the purchase. I also bought a pair of the shallow mount for the front. They are exactly what I wanted and I will add a sub later for more bass. I would recommend these to anyone.
Pros:
Excellent upgrade from factory and buy one and get the second for half price was good also.
Cons:
None
3 out of 3 people found this helpful
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5 out of 5

Great Sound for the Price

Written By TCCustoms, Hillsdale, MI on Monday, April 02, 2012
Crutchfield Customer Review (What's this?)
 
Actually was quite impressed...Bought baffles but didnt realize when ordering that they were are marine speaker so didnt use baffles and was glad since we stuck with factory radio they actually sound pretty good and the baffles would have taken from alot of the sound since it was an OEM radio and not much power output but very please with the bass and it still sits on 0 while treble is about 4 and this is was in a 07 New style Silverado and they dropped right into place
Pros:
Sound great even on OEM radio and installed very easy
2 out of 2 people found this helpful
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5 out of 5

Good product

Written By CJ, Angola, NY on Thursday, March 29, 2012
Crutchfield Customer Review (What's this?)
 
Was not sure what to buy for my 03 Nissan Frontier. I used the online chat and talked to Jenny. Told her what I wanted, the head unit I was using and the price limit. She was fast about finding what I was looking for. Actually kept the price well under my budget! So thank you! Overall this product is really good for not using an amp. I am happy with my purchase here. These came half off when I purchased the polk audio 5" for my rear doors.
Pros:
Good sound and easy installation
Cons:
none
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5 out of 5

Polk Audio db651or Polk Audio db651S?

Written By Sasha, Brooklyn, New York on Sunday, March 18, 2012
 
I am going to share my experience with these speakers in my Nissan Versa 2010 SL. Like a many of us I had a question: Polk Audio db651or Polk Audio db651S? Ok I got them one of each pair. After 2 month of use them and switch them from front doors to back doors few times I can tell you that. Polk Audio db651 has a little more BASS but less MIDS and HIS and sounds great. I left them in the rear doors. Polk Audio db651S in the front doors has less BASS but excellent MIDS and excellent HIS. And compare sound to you old factory speakers you will start missing worm BASS you have from cheap paper speakers but now you have good clear sound. I call Crutchfield and after good advice I ordered and install small SUB under my seat Sound OrdnanceT B-8PT. It was my best investment for my car audio. Never wanted SUB in my car before, will never drive my cars without it. Very impressed and very happy. Thank you Crutchfield for recommend me that!
8 out of 8 people found this helpful
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5 out of 5

I installed these in my boat.

Written By Bob C., Sag Harbor, NY on Tuesday, March 13, 2012
Crutchfield Customer Review (What's this?)
 
I spoke with a Crutchfield adviser and after I told him axactly what I had for a head unit, he reccomended the Polks. I was looking at marine speakers which were more money. Well I got them and installed them right away. Holy cow!!! The sound was great. I didn't even need an amp. This was last year I installed them on my open boat and they still sound great. I hose them down lightly when I wash the boat and it doesn't seem to bother them. Well, This new season I decided to change the head unit and also add a third set of speakers so I ordered the Polks again. I received them a few days ago and can't wait to install them in the boat. The four sound great with the new head unit so I know that adding two more is only going to make it sound even better. I trust Crutchfield with all of my car and marine audio.
Pros:
Less expensive then marine speakers, Great sound without the need for an amp.
Cons:
I don't have any!
1 out of 1 people found this helpful
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4 out of 5

Very happy with these speakers

Written By Will H., Austin, TX on Sunday, February 12, 2012
Crutchfield Customer Review (What's this?)
 
Very happy with the sound quality of these speakers. Not quite as good at the Bose I had in my '03 Chevy Silverado, but pretty close.
1 out of 2 people found this helpful
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5 out of 5

Really happy

Written By anonymous, Columbia, MO on Wednesday, February 08, 2012
 
I am a cheapskate with an Impreza, and I replaced the stock front speakers Polk mm651's and rear with Infinity 6032cf's. I am still using he stock head unit with no aftermarket amp or a sub. The Infinitys were clear in the high end, but had no bass whatsoever. Replaced them with db651's (I've had polks before in home systems and vehicles) and I couldn't be happier. Very full sound, even at the bottom end. I listen to rock (the who, zeppelin, kyuss, local h, blue oyster cult) and these handle that type of music well. If you're into rap, get a sub and the infinitys would be fine. If you're cheap and still wanna rock, these are great
Pros:
good sound through full range
Cons:
not quite the mm651's
1 out of 2 people found this helpful
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3 out of 5

Was expecting more...

Written By Anonymous, Boise, ID on Thursday, November 10, 2011
Crutchfield Customer Review (What's this?)
 
It didn't have the bass i wanted. The factory speakers seemed to have more bass!

Overall I'm a little disappointed that I wasn't "wowed" by the sound after installing.
Pros:
Good crisp sound
3 out of 10 people found this helpful
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4 out of 5

Good Speakers

Written By StevenL, Green Bay, WI on Wednesday, November 09, 2011
Crutchfield Customer Review (What's this?)
 
Put these in my 2003 Maxima and they sound pretty good. The extra brackets Crutchfield sent me weren't even needed with my Maxima. It took me about an hour to finally figure out I don't need them, but after I realized I could use the ones Polk sent it only took about a 25 minutes per door (wire splicing). Would be nice if they could include a wiring harness that would fit the Nissan's, but it wasn't too big of a deal. Overall pretty happy with the quality of sound and all the stuff Cruthfield sent me. Thanks Keith for the advice! Next step is head unit!
Pros:
Quality of sound.
Cons: