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Polk Audio db651s

6-1/2" 2-way shallow-mount car speakers

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  • Polk Audio db651s

Item #: 107DB651S
 

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Our take on the Polk Audio db651s

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 db651s shallow-mount speakers feature 6-1/2" woofers made from a polymer/mica composite and durable rubber surrounds that stand up to heat and moisture. Liquid-cooled 3/4" silk/polymer dome tweeters use powerful Neodymium magnets to deliver precise high-frequency reproduction. With a 2" mounting depth, these speakers can fit into some tight places. 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.

Highlights:

  • 6-1/2" 2-way car speakers for shallow mounts
  • Dynamic Balance polymer/mica composite woofer with butyl rubber surround
  • 3/4" 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: 6-55 watts RMS (165 watts peak power)
  • frequency response: 50-22,000 Hz
  • sensitivity: 92 dB
  • top-mount depth: 2"
  • 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 50 - 22k Hz
RMS Power Range (Watts) 6-55
Peak Power Handling (Watts) 165
Impedance (Ohms) 4
Top-mount Depth (Inches) 2
Bottom-mount Depth (Inches) 2 5/16
Cutout Diameter or Length (inches) 4 15/16
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 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.

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

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 db651s Reviews

Average Customer Review:

467 people say:

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1 out of 5

Speaker failed after 1 month

Written By corp, kansas on Monday, September 29, 2014
Crutchfield Customer Review (What's this?)
 
Speaker failed after a month in the door of my 03 Bonneville. The foam surround failed on both speakers. Was mounted according to instructions. Speaker was ran by a Pioneer MVH-X560BT Digital Media Receiver no amp.
Pros:
Sounded good for a little while.
Cons:
Failure after month replace with alpine component speakers.
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4 out of 5

Good Value

Written By Greg, Santa Maria CA on Sunday, September 28, 2014
Crutchfield Customer Review (What's this?)
 
The db651s were a good choice to replace my aging door speakers. They sound great and fit well. Installation was easy and the free harness connectors and mounting rings were much appreciated. No regrets on this purchase
Pros:
Good sound Good price Well made
Cons:
None
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5 out of 5

sound great in 3 different cars

Written By jeep grand cherokee, 23229 on Sunday, September 28, 2014
 
I replaced my 15 year old polk aftermarket speakers with the db651's and they sound even beget than the old ones. I expect these to last another 15 years.
Pros:
Great over all sound. If you expect your cat to shake from bass get a sub.
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1 out of 5

Polk Audio db651s

Written By Anonymous, Yorktown Hts, NY on Sunday, September 21, 2014
Crutchfield Customer Review (What's this?)
 
Absolutely zero bass. Completely dissatisfied. Huge downgrade from the cheap stock speakers.
Pros:
None
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5 out of 5

Excellent Sound without Amplification

Written By Anonymous, Missouri on Wednesday, September 10, 2014
Crutchfield Customer Review (What's this?)
 
By far the best overall speaker for the money!!
Pros:
Efficiency with internal crossover.
Cons:
Nothing.
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4 out of 5

Polk Speakers

Written By Don, Tonopah, NV on Monday, September 08, 2014
Crutchfield Customer Review (What's this?)
 
The speakers sound great. Contrary to other reviews, there is more than enough bass to satisfy most people. I suspect the people who are criticizing these speakers for lack of bass probably walk around with subwoofers wired to their ears. My only criticism of these speakers is the poor mounting design. Polk's engineers missed the boat on this one! They use four small machined screws to mount the speakers to your brackets. The tiny screw head fit into a C-shaped cut out rather than a hole or oval. Once you tighten them, you better hope they don't slip off the C slot or you have to remount them. Since these are mounted in a truck that will see bumpy desert roads, I'm not impressed with their ability to stand up over time. I had to go to the hardware store and spend $5 on longer screws and tiny washers just to make sure they stay mounted to the brackets. Then I trimmed off the excess screw shank with a Dremel cutoff wheel. If you can live with this, they're great speakers with decent sound.
Pros:
Speakers sound great.
Cons:
Factory mounting setup is pure garbage. You'll need longer screws of the same type and thin washers to keep the screw heads from slipping out of the cheesy C-shaped mounting "holes".
1 out of 1 people found this helpful
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4 out of 5

Fit with no alteration

Written By JustinG, Tennesee on Wednesday, September 03, 2014
Crutchfield Customer Review (What's this?)
 
So far I am pleased with my purchase. They were on sale so I feel that I got a good deal. I bought two pair to install in the doors of a ram quad cab. The magnet on these was bigger than the magnet on the stock 6x9's that came out of the front door, but smaller than the 6.5's that were in the rear doors. I am pleased with the sound. It is brighter an clearer than the stock speakers. They seem louder than the stock speakers. But I seem to get some harsh mids when really cranking the Alpine head unit. Another reviewer complained that these had no bass. They don't and you should not expect them to. I have some 10" polk subs that take care of the bass. One thing I did not like was the way the screw holes were built into the speaker. When tightening the screws it caused to surround to deform. I was not clamping down as tight as I would like. Install was a snap -- my 9-year old was able to get the stock speakers out and screwed the front door speaker in. You can see the gunmetal bronze cones behind the stock speaker grill, they look great. Thanks for the adaptor plates and plugs! That is why I tell my friends to buy from Crutchfield. I was able to get most of the speaker holes to line up with stock mounting holes. I only had to drill one out.
Pros:
Fits well, cool look. Bright clean highs. Free installation accessories from Crutchfield.
Cons:
Harsh when cranked up. When secured tightly with the screws provided the surround deformed.
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5 out of 5

great sound

Written By great sound, Springfield, MO on Friday, August 29, 2014
Crutchfield Customer Review (What's this?)
 
Great sounding speakers as one would expect from Polk.
Pros:
Sound.
Cons:
none
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5 out of 5

Polk Audio db651s

Written By jim, cheyenne wy on Monday, August 25, 2014
Crutchfield Customer Review (What's this?)
 
Sound great easy installation
Cons:
none
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5 out of 5

jbe_review_jeep_cherokee

Written By JBE, Aurora, CO on Saturday, August 23, 2014
Crutchfield Customer Review (What's this?)
 
Wow, these sound great in my 2000 Jeep Cherokee (non-Infinity). I have the Alpine CDE-153BT power them at the moment. There is a reason these speakers have the rating they have; great buy.
Pros:
Sound great.
Cons:
None.
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4 out of 5

Polk Audio db651s

Written By Anonymous, herndon pa on Wednesday, August 20, 2014
Crutchfield Customer Review (What's this?)
 
like the crisp sound of the speakers
Pros:
easy bolt in
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4 out of 5

Good Sound

Written By Kevin, South Carolina on Tuesday, August 19, 2014
Crutchfield Customer Review (What's this?)
 
Good sound for a slim coax, nice rear fill in my Jeep's soundbar.
Pros:
Good sound at an affordable price.
Cons:
none
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5 out of 5

Polk Audio db651s

Written By Ralo, Hormigueros, Puerto Rico on Monday, August 18, 2014
Crutchfield Customer Review (What's this?)
 
Everthing you need to install it your self
Pros:
Great sound even with no amp
Cons:
None yet
1 out of 1 people found this helpful
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4 out of 5

Clear sound

Written By Little John, Vista California on Monday, August 18, 2014
Crutchfield Customer Review (What's this?)
 
I have a 97 Saturn wagon. ... I began replacing my factory speakers with the Polk Audio speakers ... It made my factory stereo sound much better ... But I need a little more punch .... I purchased a pioneer deck with a sound ordnance 8 inch powered sub .... Now I have the sound that I truly want it ... Clear rich highs and mids and I got the Lowes from the 8" sub sounds great .... thank you Crutchfield
Pros:
Clear great rich highs and mids
Cons:
Not enough low punch definitely probably need a sub
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4 out of 5

polk audio db651s

Written By bvm, sg missouri on Monday, August 18, 2014
Crutchfield Customer Review (What's this?)
 
sound quality was a definite improvement over the factory installed speakers. installation went smoothly with no hitch thanks to fit and supplied wiring harness and speaker mounting brackets...kudos and thanks to Crutchfield and their customer service department!
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4 out of 5

Better than Expected.....

Written By Vyko, Tracy, Calif. on Friday, August 15, 2014
Crutchfield Customer Review (What's this?)
 
Put these in a honda hybrid hooked to a older Kenwood receiver with a 22 rms rating for a neighbor of mine. After about a two week break in period at medium volume, I went back and tuned up her sound and man was I shocked how Crystal clear her music sounded. Installation was a breeze with the wire harnesses and bracket mounts that Crutchfield supplied. She was so excited and can't wait to get a subwoofer to fill out the sound. Thanks again Crutchfield fantastic as always.....
Pros:
Price
Cons:
None
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4 out of 5

Polk Salad

Written By T, Lebanon, VA on Monday, August 11, 2014
Crutchfield Customer Review (What's this?)
 
Excellent clarity. Better low end than expected.
Pros:
Excellent clarity, output, balance, and percussion.
Cons:
Mids do not seem to carry well.
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4 out of 5

Polk Audio db651s

Written By TS, Atlanta on Sunday, August 10, 2014
Crutchfield Customer Review (What's this?)
 
Replacement for 10 year old factory speakers. Sound great with Kenwood Excelon KDC-X598
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5 out of 5

Polk Audio DB651s

Written By c_stone, Axton, Virginia on Sunday, August 10, 2014
 
Bought these for my daily driver, (80 mile commute to work every day) a 1992 Honda Civic Hatch. Didn't want to put a whole lot of money in it but I wanted decent sound quality. The previous owner had installed Polk's in the rear, so I read reviews on these and I'm extremely pleased! They don't break the bank but I could hear things more clearly, and also some different notes that the old stock speakers couldn't produce. Currently just running off head unit power, but I am curious to see how they do with a decent Amp!
Pros:
Crisp sound. Best bang for your buck. Easy to read and follow Instructions (proper english and grammar) Not cheaply made, quality materials.
Cons:
None.
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5 out of 5

Polk Audio db651s in the front door of a 1997 Honda CR-V

Written By David, Lafayette, CO on Saturday, August 09, 2014
Crutchfield Customer Review (What's this?)
 
Installing these speakers in the front doors of my 1997 Honda CR-V was a breeze - took about 10 minutes total with the free wiring adapters. The two main improvements over my 17-year-old(!) factory speakers are: 1) the efficiency - the music is much louder on a given volume setting than before, and 2) no more distortion at any volume level. I can't speak to the bass level as I have previously installed a Kenwood powered subwoofer, but overall the highs and mids sound really good out of these speakers. I am very pleased with the improvements over my stock speakers and recommend these as a great low-profile speaker that will give you rich, full sound.
Pros:
Great, balanced sound, easy to install (in a Honda CR-V).
Cons: