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Polk Audio db351

3-1/2" 2-way Speakers (Marine Certified) (db 351)

4.4

(8 reviews)

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Exceptional Quality and Versatility

Step up your vehicles audio performance with Polk Audio's revolutionary db351's. Cutting edge technology has allowed for an efficient speaker that has ability to accurately reproduce music like you have never heard before. A precise balance of materials including the Silk/Polymer Dome tweeter and Mica Cone woofer enable smooth roll-off and quick response at any volume. The rubber surround adds to bass response as well as increases the lifetime of the speaker under any conditions. Being marine certified, the Polk db351's will surprise you with its versatility and ability for use in many applications. The high-efficiency loudspeaker means less power is necessary for the same quality output. The revamped db Series delivers that perfect Polk Audio performance and durability like never before.

Speaker Features:

  • 3-1/2" 2-way Speakers (Marine Certified)
  • Power Handling:
    • Peak: 210 watts per pair / 105 watts each
    • RMS: 70 watts per pair / 35 watts each
  • Impedance: 4 ohms
  • Dynamic Balance polymer/mica composite mineral filled cone is stiff yet lightweight for big sound and little distortion
  • 12mm Liquid-Cooled Silk/Polymer composite Dome Tweeter with Neodymium magnet for clear, detailed highs
  • Low-mass 2-Layer 25mm Kapton voice coil former is lightweight for high sound output
  • Multi-hole mounting pattern and shallow depth for easy drop-in installations in most cars
  • Durable butyl rubber surround won’t fall apart under the stress of extreme temperatures, sunlight or time
  • Pole Plate Heat Sink promotes better heat dissipation for superior power handling and reliability
  • Acoustically inert stamped steel basket
  • Flat Spider for faster, longer excursion linear motion
  • Flexible woven tinsel leads sewn directly into Spider for greater reliability
  • Frequency Response: 90-22,000 Hz
  • 1-year SonicElectronix.com warranty

Priced Per Pair

Speaker Specifications
Speaker Size3-1/2"
Design2-way
Tweeter DesignDome
Tweeter CompositionSilk-Polymer Composite
Woofer CompositionPolymer/Mica Composite
Woofer SurroundButyl Rubber
Peak Power Handling105 watts
RMS Power Handling35 watts
Sensitivity91 dB
Frequency Response90 - 22000 Hz
Impedance (Per Voice Coil)4 ohms
Shallow Mount InstallationYes
Top-Mount Depth1-1/2"
Bottom-Mount Depth1-11/16"
Cutout Dimensions3-1/8"
Speaker GrillesNo
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderSonic Electronix
Customer Review Summary for Polk Audio db351
Average Customer Rating is 4.4 out of 5 stars:
4.4
based on 8 Reviews
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Rating Distribution:
5 star:
.
.
75%
4 star:
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.
13%
3 star:
.
0%
2 star:
.
0%
1 star:
.
.
13%
what's this?
Average Attributes Rating:
Durability
4.4
Value
4.4
Features
4.4
Design
4.6
Usability
4.5
what's this?
Quick Comparison:
Most Helpful Customer Reviews:
March 29, 2010 Great product
1 of 1 people found the following review helpful:
Review by
Paul from Waimea, HI
Overall
Durability
Value
Features
Design
Usability
Installed these in the dash and rear pillars of my fj cruiser. Almost a direct bolt in with some modifications. Speakers came with bass blockers and can really crank out some ear piercing highs. Way better than the stock speakers. Clean clear sound.
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July 12, 2009 Polk Audio db351
1 of 1 people found the following review helpful:
Review by
mike g from lawton,ok
Overall
Durability
Value
Features
Design
Usability
very good sounding speakers,obviously not very good for bass but, very clear overall very satisfied.
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June 14, 2009 Great product
1 of 1 people found the following review helpful:
Review by
Jesusvel from Tx
Overall
Durability
Value
Features
Design
Usability
This purchase was an upgrade for my stock speakers. Great mids and highs.
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April 27, 2009 Excellent Quality
1 of 1 people found the following review helpful:
Review by
MarkyMark from North Massapequa, NY
Overall
Durability
Value
Features
Design
Usability
I purchased this speaker specificly for my 2007 Pontiac Grand Prix. It was a replacement for the original center dash speaker. The db351 sounds much better than the original speaker. I recommend this speaker as a replacement, it was a perfect fit.
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January 3, 2012 Excellent Dash Speakers!!
Review by
Leo from Pittston, PA
Overall
Durability
Value
Features
Design
Usability
These speakers really bring out the highs and complement well with the Polk audio 6x8 speakers. I have these mounted in the Dash of my brothers car and with these there really is no need to amp the rear speakers even with his two CVR's!
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View All 8 Reviews for Polk Audio db351
Speaker Wire
Upgrade your factory speaker wire to aftermarket speaker wire and hear the difference! Using thicker gauges, newer technology, and higher quality materials, aftermarket speaker wire is key to upgrading the sound in your car.
 ProductPriceAdd?
20 ft. of 16 AWG KICKER X-Series Speaker Wire20 ft. of 16 AWG KICKER X-Series Speaker Wire
Get high quality sound from Kicker's twisted-pair, true to gauge speaker wire.
$19.99
50 ft. of 14 AWG StreetWires Speaker Cable50 ft. of 14 AWG StreetWires Speaker Cable
Streetwires Super Cable provides a zero-grip insulation for a smooth install as well as true gauge twisted wire construction.
$29.99
50 ft. of 16 Gauge Monster XLN Series Speaker Cable50 ft. of 16 Gauge Monster XLN Series Speaker Cable
Upgrade to clean and clear sound with Monster Cable's Xtra Low Noise (XLN) construction.
$35.00
Sound Dampening Material
Get optimal sound from your new speakers with some high quality sound dampening material. It will keep the road noise out and the music inside the car.
 ProductPriceAdd?
Dynamat Xtreme Speaker KitDynamat Xtreme Speaker Kit
Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!
$21.99
Dynamat Dynaxorb Speaker PakDynamat Dynaxorb Speaker Pak
Revolutionary damping material designed to prevent distortion caused by the back wave of a speaker interfering with the front wave.
$19.99
Dynamat Rubber RollerDynamat Rubber Roller
Install your Dynamat with ease! This heavy duty rubber roller is designed specifically to install your Dynamat products!
$18.99
Ballistic Speaker KitBallistic Speaker Kit
Eliminate speaker distortion, road noise, and rattles with this sound dampening material from Ballistic.
$15.99
Installation, Tools & Accessories
Get all of the tools and accessories to install your new speakers like a professional, or take your car to an expert and have them installed by redeeming professional installation cards.
 ProductPriceAdd?
Door Panel & Upholstery Remover ToolDoor Panel & Upholstery Remover Tool
The ideal tool for removing your car's door panels to replace you speakers!
$11.99
Universal Window Handle Remover ToolUniversal Window Handle Remover Tool
Designed to easily remove the manual window handles without breaking any interior pieces.
$4.99
Universal Wire Puller & GrabberUniversal Wire Puller & Grabber
Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!
$6.99
16-14 AWG Butt Connectors16-14 AWG Butt Connectors
These blue butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers!
$4.99
Tone Generators and Sound Testing Equipment
Optimize your new system's sound quality by testing and calibrating all of your components with these items.
 ProductPriceAdd?
AutoSound 2000 CD-101AutoSound 2000 CD-101
Low frequency test CD
$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High frequency test CD specifically designed for the set-up and evaluation of sound system imaging and placement.
$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
$12.99
Main Product
 ProductPriceAdd?
Polk Audio db351Polk Audio db351$39.99

Product Summary

Manufacturer: Polk Audio
Model number: db351
UPC: 747192112707
Weight: 3.00 lbs
Internal SKU: db351
Internal product ID: 9123

Price Information

$69.99

–$30.00

$39.99

In Stock

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Customer Testimonial

I purchased some 5x7 speakers from the rockford fosgate power series. Price was unbeatable, shipping was free, and my item came in only two days. I will purchase from here again and again - thank you!

- Danica from Phoenix, AZ

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