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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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Item# 107DB651 offer details

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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.

Our take on the Polk Audio db651

by Leigh Schoettinger

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.

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
  • certified for marine use
  • 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
Shop all Polk Audio 6-1/2" Speakers

    Priced per pair

     

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

    Features and Specs

    Features and Specs
    General
    Design
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    2-way
    Tweeter Design
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    3/4" Dome
    Tweeter Composition
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    Silk/Polymer composite
    Woofer Composition
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    Polymer/Mica composite
    Woofer Surround
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    Butyl 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 at 1 watt
    Frequency Response
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    35 - 22k Hz
    RMS Power Range (Watts)
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    6-60
    Peak Power Handling (Watts)
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    180
    Impedance (Ohms)
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    4
    Top-mount Depth (Inches)
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    1 11/16
    Bottom-mount Depth (Inches)
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    N/A
    Cutout Diameter or Length (inches)
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    5

    Product Research

    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

    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

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    Reviews for the Polk Audio db651

    Average Customer Review:

    126 people say:

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    5 out of 5

    These rock!

    Written By Mark, Brookville,IN on Sunday, April 28, 2013
    Installed in a 2003 Chevrolet Silverado 1500
    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
    Was this review helpful?    Yes | No
     
    4 out of 5

    like em

    Written By Abe, Texas on Monday, March 18, 2013
    Installed in a 2011 Toyota Tundra
    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
    Was this review helpful?    Yes | No
     
    5 out of 5

    Polk speakers

    Written By Alvin, Mayaguez, PR on Tuesday, March 12, 2013
    Installed in a 1990 Mitsubishi Montero
    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.
    Was this review helpful?    Yes | No
     
    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
    Was this review helpful?    Yes | No
     
    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
    Was this review helpful?    Yes | No
     
    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.
    Was this review helpful?    Yes | No
     
    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
    Was this review helpful?    Yes | No
     
    5 out of 5

    Polk Audio db651

    Written By legin, Hilo,HI on Friday, February 15, 2013
    Installed in a 2013 KIA Soul
    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.
    Was this review helpful?    Yes | No
     
    5 out of 5

    Polk Audio db651

    Written By W.L. Buntin, Danville, VA on Thursday, February 07, 2013
    Installed in a 2005 GMC Sierra 1500
    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.
    Was this review helpful?    Yes | No
     
    4 out of 5

    Awesome Speaker

    Written By RonF, Lake Charles, LA on Thursday, January 31, 2013
    Installed in a 2007 GMC Sierra
    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.
    Was this review helpful?    Yes | No
     
    5 out of 5

    polk speakers

    Written By Otis J, Riverside, CA on Saturday, January 12, 2013
    Installed in a 2006 Chevrolet Silverado 1500
    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
    Was this review helpful?    Yes | No
     
    5 out of 5

    Great

    Written By Marek, Des Plaines on Sunday, December 16, 2012
    Installed in a 2013 Subaru Outback
    Crutchfield Customer Review (What's this?)
     
    The best Speakers EVERRRR!!!!
    Pros:
    The Best
    Cons:
    NONE
    Was this review helpful?    Yes | No
     
    5 out of 5

    Great Speakers

    Written By JohnD, Kansas City, MO on Saturday, September 29, 2012
    Installed in a 2005 Chevrolet Silverado 2500/3500
    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
    Was this review helpful?    Yes | No
     
    5 out of 5

    Excellent Value

    Written By Derek, Lehigh Valley, PA on Monday, September 17, 2012
    Installed in a 2012 KIA Sportage
    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
    1 out of 1 people found this helpful
    Was this review helpful?    Yes | No
     
    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.
    Was this review helpful?    Yes | No
     
    4 out of 5

    Improvement over OEM

    Written By JayK, Fort Wayne, IN on Wednesday, June 20, 2012
    Installed in a 2008 GMC Sierra
    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
    Was this review helpful?    Yes | No
     
    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
    Was this review helpful?    Yes | No
     
    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
    Was this review helpful?    Yes | No
     
    5 out of 5

    Performs for the price - 2008 Vibe

    Written By Karl K, Chicago IL on Monday, June 11, 2012
    Installed in a 2008 Pontiac Vibe
    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
    Was this review helpful?    Yes | No
     
    5 out of 5

    speaker review

    Written By Awsome sounding speakers, East Brunswick, N.J. on Tuesday, May 29, 2012
    Installed in a 2010 Acura MDX
    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
    Was this review helpful?    Yes | No
     
    1-20 of 126 >>

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    Smart people protect with SquareTrade- The best warranty at the best price

    SquareTrade Warranty
    SquareTrade Warranty 3 Year Warranty
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    In business since 1999, SquareTrade is the largest independent warranty provider in the U.S.

    100% parts and labor - no deductibles

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    Your item's repaired or the full item price returned withing 5 days

    Runs concurrent with manufacturer's warranty

    Rated 5-stars by consumers

    For a more in-depth review and enhanced detailed information on the Polk Audio db651, please visit the Crutchfield website product page (/S-wG2SJJNMldN/p_107DB651/Polk-Audio-db651.html ).

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