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Polk Audio db651s

6.5" / 6.75" 2-Way Marine Grade db Series Sahllow-Mount Coaxial Speakers w/ Liquid Cooled Silk Tweeters

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List price $119.99

$64.99

with warranty

You Save: $55.00 (45.84%)

Arrives by Thursday, Sept. 4 to zip 20147

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Bundled Savings with this Product

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Get 25% off Sound Dampening Speaker Kit with Purchase!

For a limited time, get 25% off of the NVX SDSK2 Speaker Kit with a qualifying pair of speakers! Sound dampening will eliminate rattles, insulate against heat, and also improve the sound and output of your speakers!

3.75

9110

100

Polk Audio db651s

$64.99

+

25% OFF

NVX SDSK2

$14.99

Special Price $11.24 ($14.99 if purchased separately)

NVX SDSK2

• Eliminates Road Noise
• Quiets Vibrations
• Stops Annoying Rattles
• Increases SPL
• Reduces Heat
• Simple To Install
• Peel and Stick Installation
• Two 10" x 10" Pieces

(Offer 1 of 1)

Combined Total Price

$76.23

You Save $3.75

Exceptional Quality and Versatility

Step up your vehicles audio performance with Polk Audio's revolutionary db651s'. 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 db651s' 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:

  • 6-1/2" 2-way Slim Mount Marine Certified Coaxial Speakers
  • Power Handling:
    • Peak: 330 watts per pair / 165 watts each
    • RMS: 110 watts per pair / 55 watts each
  • Lightweight dynamic balance polymer/mica composite mineral filled cone woofer
  • Marine certified, perfect for use in marine vessels
  • 3/4" Liquid-cooled silk/polymer composite dome tweeter
  • High pass and low pass crossover filters
  • Low-mass 2-Layer 25mm kapton voice coil former
  • Multi-hole mounting pattern
  • Shallow depth
  • Muscular ABS Grilles (Based on MOMO Designs)
  • Durable butyl rubber surround
  • Pole plate heat sink
  • Flat spider for faster, longer excursion linear motion
  • Flexible woven leads sewn directly into spider for greater reliability
  • polarized nickel plated terminals on PCB terminal board
  • Stamped steel basket finished in rustproof gun metal gray
  • Frequency Response: 50 - 22,000 Hz
  • Sensitivity: 92 dB
  • 4 ohm Impedance
  • 1-year SonicElectronix.com warranty

Priced Per Pair

Speaker Specifications

Series
This is the manufacturer product line of speakers.
db (Polk)
Priced Per
Car Speakers are typically sold in pairs so you will receive 2 speakers for each speaker purchase on speakers marked "Priced Per Pair". If a speaker is marked "Priced Per Each" then the speaker is sold individually and each purchase you make will result in 1 speaker. High-powered tweeters, midrange and full-range pro audio for car speakers are typically sold per each speaker.
Pair
Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
6-1/2"
Design
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
2-way
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Dome
Tweeter Composition
Materials such as polypropylene, silk, cloth, and paper are the most common, where as many more recent tweeters are now manufactured with composites such as Aluminum, Titanium, Mylar, and other materials.

PEI is an acronym for "Polyetherimide" which is an amorphous, amber transparent, high-performance thermoplastic.

Silk-Polymer Composite
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Mica Injected Polypropylene (MIPP)
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Butyl Rubber
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
165 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
55 watts
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
92 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
55 - 22000 Hz
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.

Yes
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
1-11/16"
Bottom-Mount Depth
The depth when installed from the bottom of the mounting surface. Measured from the bottom of the speaker's magnet to the top of the mounting holes on the rim of the speaker.
2-5/16"
Cutout Dimensions
Refers to the dimensions of the hole, measured in inches or millimeters, required to contain the speaker.
5" x 5" 
Speaker Grilles
A grating or screen of metal or plastic bars or wires, mounted in front of a speaker as protection. If yes, the speakers will include matching speaker grilles. If no, there are no grilles included.
Yes

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
64%
4 Star
25%
3 Star
9%
2 Star
0%
1 Star
2%

Average Attribution Rating

Durability
4.5
Value
4.6
Features
4.5
Design
4.6
Usability
4.5

Brucebanner77

Palestine, TX

Overall
Durability
Value
Features
Design
Usability

Great for the price

July 14, 2014

These are great tweeters for the price. The sound is very clear and plus they are Marine grade. They have several mounting methods to fit your needs.

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rob

atlanta, ga

Overall
Durability
Value
Features
Design
Usability

Great Speakers

March 30, 2014

I've tried other brands at similar prices, but for the money nothing beats Polk Audio (especially when paired with a pioneer head unit). This model is the shallow mount as opposed to the regular DB651. If you can fit the DB651 instead of the DB651s, go with the non-s model. It has a slightly bigger magnet and will give you a better low end response. All in all, Polk makes some great speakers. When I bought these from Sonic they were priced at about $65 /pair which is a helluva deal for these speakers.

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DJ

niagara new york

Overall
Durability
Value
Features
Design
Usability

Good stuff

December 12, 2013

Speakers were great, and were a cinch to install. They sound great. Shipping, handling, and cost were all very reasonable. Would order from you again.

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Larry

Brewton, Alabama

Overall
Durability
Value
Features
Design
Usability

Very good sounding speakers

September 17, 2013

I purchased these speakers to replace the old completely worn out speakers in my Chevy truck. I had to modify the stock speaker mounts to fit them but they fit in there nicely now. The sound is really good. Sounds better than it ever did before. They are a good value for the price. I recommend them.

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Faruk

Mozambique

Overall
Durability
Value
Features
Design
Usability

Great Speakers.

August 29, 2013

Got those along side my Alpines SPR-50, they make up for the lack of midbass from the Alpines. Great value for the money but again with Polk Speakers Sensitivity ratings are open to interpretation.

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Smart guy

Clinton township , Mi

Overall
Durability
Value
Features
Design
Usability

Big sound outy of small speakers

August 26, 2013

When you buy small speakers (because thats is all the room you have to install in) you really don't expect to get much bass sound out of them. Well, I was very surprised at the great all around sound I got out of these Polk db 651s speakers. I put them in a smart car and they sounded way better then I ever thought they would. For the price, they can't be beat!!

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Penz

NY

Overall
Durability
Value
Features
Design
Usability

Superb price/quality & value

August 8, 2013

The Polk db651s are perfect for getting articulate mids and highs in either a car of boat application. They are equipped with a basic crossovers mounted on the speaker terminals (6db slope) however to sound clean they will need a high pass filter at about 60-80Hz for eliminate the lowest frequencies which will otherwise distort the sound. Time will tell how long they will last in harsh environments like marine use but thus far (6 months) they seem to be holding up. For automobiles the 6.5" coaxials will produce more low end such as midbass because of cabin gain however on a boat or any other open air vehicle (golfcart, jeep, ATV...) they will require a subwoofer to augment the missing low frequencies. Once set up correctly they will sound surprisingly good with very detailed and smooth output. For the price the value is highly recommended!

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Martin

Canada

Overall
Durability
Value
Features
Design
Usability

Not recommended

August 6, 2013

One speaker blew after about 2 months of non excessive volume.

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Arnokung

Silver Spring, MD

Overall
Durability
Value
Features
Design
Usability

Great sound

June 10, 2013

I put this guy into my new beetle paired with sony head unit. It sounds great, good woofer

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Kyle

Medford, OR

Overall
Durability
Value
Features
Design
Usability

Better off with regular db651 coaxials

May 29, 2013

I purchased a set of db651s for my front doors, thinking that the "slim" speaker would be a better fit. I also purchased a set of db651 for my rear parcel deck, as space was not an issue. Upon comparison, I discovered that the db651s require the same mounting depth as the db651. The "slim" part is only the TOP of the speaker. To make the top slimmer, the cone diameter is slightly smaller, and the tweeter is mounted in a fixed position. I ended up installing the db651 in the front doors, because the slightly larger cone area would play louder, and the tweeter can be aimed. I would bet that most people who buy the db651s could get away just fine with the db651 -- which is a better speaker.

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BuPhilOh

Buffalo, NY

Overall
Durability
Value
Features
Design
Usability

Very good value

May 27, 2013

Very good, clear sounding speaker, and this price was excellent. I bought them for an unusual application - replacing the 4" speaker in a Roland MicroCube guitar amplifier. It gave me exactly the improvement I wanted.

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Ken

WV

Overall
Durability
Value
Features
Design
Usability

Fantastic sound quality

May 27, 2012

I bought these because they are one of the few 6.5" speakers that can fit in the front doors of older Civics (with the included adapters). I have admittedly used nothing better in the past than what can be bought at bargain stores, but these are by far the best speakers I have owned or even experienced in anybody else's vehicle.

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None

The Dalles, OR

Overall
Durability
Value
Features
Design
Usability

decent for the price, bright for my taste

May 21, 2012

Not a bad set of speakers but wanted matching front/rear, and they 651s was too deep in front for my application. Had these installed for just a month or so, but was overall quite happy with them- EXCEPT- they were very bright. Had to have a lot of high end cut to make my ears not bleed.

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James

Los Lunas, NM

Overall
Durability
Value
Features
Design
Usability

Nice sounding speakers

February 21, 2012

I got these to use as rear fills in my Tacoma and they sound great. Much impoved over the stock spearkers with just my HU powering them. They sound as good if not better than a set of CDT's I had in another vehicle that i paid twice as much for. Great deal.

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Chris

Modesto, CA.

Overall
Durability
Value
Features
Design
Usability

Polk Audio db651s speakers

December 9, 2011

I love these speakers. I installed them in my 2000 Toyota Avalon and they sound absolutely great! I already had the JBL system in my car and the speakers were getting old so I upgraded to these and couldn't be happier. Thanks Sonic Electronix for a great price on some great speakers.

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Daniel

Hickory Hills, IL

Overall
Durability
Value
Features
Design
Usability

Great deal

November 27, 2011

Really good product. Great ease in installation. And solid product. Amazing sound for the price.

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Avdo

Astoria, NY

Overall
Durability
Value
Features
Design
Usability

Great Quality Sound

November 17, 2011

Great speakers, I used these speakers on my Audi A6 1998 as replacements and sound quality is amazing so is the bass. These speakers exceeded my expectation. These speakers are fifty times better then the standard factory speakers that came with my Audi.

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Barney

Lutz, FL

Overall
Durability
Value
Features
Design
Usability

Great product

November 13, 2011

The sound from these speakers are great. Rich and full sound.

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Daniel

Haslett, MI

Overall
Durability
Value
Features
Design
Usability

Solid replacement

September 20, 2011

Major difference in sound from the factory garbage that these speakers replaced, even without amplifying them. Running them from the 45x4 head unit is sufficient, but would probably benefit from separate amplification. Good highs, great mids, but you want to cut them off and block 120hz and below. Did not fit, even with the included adapter, but a drill bit takes care of that no problem.

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CRAZY-D

POPLARVILLE MS

Overall
Durability
Value
Features
Design
Usability

SPEAKERS ROCK

August 26, 2011

I have nothing negative to say about the polk db651. They are out on the porch in 1 cf boxes and they sound great, good bass and highs and they can handle power.

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Accessory Tools and Products

Accessories added

Streetwires 25 ft. of True Spec 12 Gauge Speaker Wire

You need speaker wire to connect your speakers!

Your Price $44.95

Belva 23 ft. of True Spec 12 Gauge Speaker Wire

100% Copper Clad Aluminum, high strand count with ultra-flexible PVC blended jacket for easy installation

Your Price $14.99

12-10 AWG Butt Connectors

These yellow butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers.

Your Price $6.99

12-10 AWG Yellow T-Tap Adapters

Allows for fast and easy splicing of wires by easily tapping into the cable.

Your Price $4.49

12-10 AWG Quick Disconnect Connectors

These yellow quick disconnect connectors make it easy to connect and disconnect speaker wire your to your new aftermarket speakers!

Your Price $6.99

NVX SDSK2 Speaker Kit

Eliminates speaker panel distortion and reduces vibration, rattles, and squeaks!

Your Price $14.99

Dynamat Xtreme Speaker Kit 10415

Enough sound dampening for 2 speakers!

Your Price $17.95

Stinger Roadkill Speaker Kit

Use this to eliminate rattle from your speakers!

Your Price $13.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $12.99

Universal Wire Puller & Grabber

Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!

Your Price $6.99

Xscorpion WDCR2 Window and Door Clip Remover

Removes and installs handle and window crank clips.

Your Price $6.99

3 in 1 Wire Quick Splice T-Tap and Butt Connector Crimper + Wire Cutter

Used for cutting copper and aluminum wires up to 8 gauge.

Your Price $21.99

NVX SDRLR1 Sound Dampening Rubber Roller

Install your Sound Dampening with ease! This heavy duty rubber roller is designed specifically to install your NVX products!

Your Price $7.99

Speaker Baffles for your Speakers

Enhance the sound of your speakers with these easy to install speaker baffles.

Your Price $9.99

Items we think you might want

db651 thumbnail

Polk Audio db651

• Peak Power: 360W
• RMS Power: 120W
• 3/4" Liquid-Cooled Silk / Polymer Composite Dome Tweeter
• Mounting Depth: 2-5/16"
• Lightweight Dynamic Balance Polymer/Mica Composite Mineral Filled Woofer Cone
• 4 Ohms Impedance
• Sensitivity: 92dB

Your Price $69.99

SPS-610 thumbnail

Alpine SPS-610

• Peak Power: 480W
• RMS Power: 160W
• 1" Wide-Range Silk Soft Dome Tweeter
• Mounting Depth: 2-1/4"
• Tuned Poly-Mica Woofer Cone
• 4 Ohms Impedance
• Sensitivity: 88dB

Your Price $64.95

TS-D1602R thumbnail

Pioneer TS-D1602R

• Peak Power: 520W
• RMS Power: 120W
• 1-1/8" Soft Dome Tweeters with Magnetic Fluid and Neodymium Magnet
• Mounting Depth: 2-3/8"
• Injection Molded Matrix Aramid-Basalt Fiber Composite Woofer Cone
• 4 Ohms Impedance
• Sensitivity: 88dB

Your Price $74.95

Browse 1 question and 3 answers
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Why did you choose this?
Sonic Electronix Store
it fits
Brian P on Aug 21, 2014
Great feedback from previous owners + great pricing
Francisco D. O on Aug 14, 2014
to replace existing (identical) boat speakers
Todd R on Aug 18, 2014

Product Summary

Manufacturer

Model Number

db651s

UPC

747192112783

Weight

5.00lbs

Internal SKU

db651s

Internal Product ID

9110

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Polk Audio db651s

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