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Polk Audio DB1040DVC

270W 10" db Series Dual 4 ohm Marine Certified Car Subwoofer

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Marine Certified: Also great for car installs!

List price $99.99

You Save: $45.00 (45.00%)


with warranty

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Arrives by Tuesday, July 7 to zip 07095

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Bundled Savings with this Product

Save 10% on a Sealed Enclosure with Your Subwoofer Purchase!

Save 10% when you add a Belva MDFS10 Sealed Subwoofer Enclosure to your Subwoofer purchase. Simply click the "Add Both to Cart" button. This offer cannot be combined with any other coupons or offers.




Polk Audio DB1040DVC



10% OFF

Single 10" Sealed MDF Subwoofer Enclosure (Belva MDFS10)


Special Price $28.79 ($31.99 if purchased separately)

Single 10" Sealed MDF Subwoofer Enclosure (Belva MDFS10)

• 3/4" Medium Density Fiberboard Construction
• Durable Black Carpeting
• Pre-Lined with Poly-Fil
• Gold Speaker Terminals

Frequently Bought Together - 10% off Sound Dampening

Save 10% on an NVX trunk kit that contains 20 sq. ft. of quality sound dampening material. This material quiets vibrations, stops rattles, and increases the subwoofer SPL.




Polk Audio DB1040DVC



10% OFF



Special Price $53.99 ($59.99 if purchased separately)


• Eliminates Road Noise
• Quiets Vibrations
• Stops Rattles • Increases SPL
• Reduces Heat
• Simple To Install
• Easy To Form Aluminum
• Four Step Peel and Stick Installation
• Five 18" x 32" Pieces

(Offer 1 of 2)

Combined Total Price


You Save $3.20

The db models have been styled with “tuner” automotive enthusiasts in mind—from the wheel style grilles to the textured driver cones, db says “hot car.” But Polk's db series offers much more than great styling. The full force of Polk Audio’s award-winning engineering went into developing high performance to match the cosmetics. All of the components in the db Series benefit from Polk’s Dynamic Balance technology that stems from a joint research project between Johns Hopkins University's Center for Non Destructive Evaluation and Polk Audio.

The new db Series has been built tough to withstand the rigors of exposure to the sun, water and salt to earn Marine Certified status. db Series speakers are perfect for use in boats of all types.

Products Specifications

  • 10" Polk Audio db Series Marine Certified Subwoofer
  • Power Handling:
    • Peak: 540 watts
    • RMS: 270 watts
  • Impedance: Dual 4 ohm
  • Polypropylene cone
  • Santoprene surround
  • Fire-retardant flat NOMEX® Spider
  • Double venting of the 4-layer Kapton Voice Coil Former, Cone/Coil Coupler and Pole Piece
  • 2" Kapton dual voice coil
  • Frequency response: 28-200 Hz
  • Sensitivity: 86 dB
  • db Series Subwoofer Grill Available
  • 1-year warranty

Product History:

Polk Audio DB1040DVC thumbnail
(newest, current model)
Polk Audio db104DVC thumbnail
(previous model, replaced by Polk Audio DB1040DVC)

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
db (Polk)
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
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.
540 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.
270 watts
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
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
Voice Coil Diameter
Diameter of voice coil, usually measured in inches.
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).
28 - 200 Hz
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".
86 dB
Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
9 mm
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Round / Circle
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
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.
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.
Santoprene Rubber
Magnet Structure
Defines the overall structure of the subwoofers magnet.
Subwoofer Grille
Most subwoofers are able to accommodate a universal grille; however, some subs include a grille and others have a specific, optional grille available for purchase separately. If "yes", then the subwoofer includes a grille. If "optional (sold separately)" the matching grille will need to be purchased in addition to the sub.
Optional (Accessory required and sold separately)
Re-Cone Kit Available
Some higher end subwoofers have replaceable cone assemblies. In case of a blown woofer, a recone kit allows for a simple replacement, as opposed to purchasing an entire new subwoofer.

Recommended Enclosure Specifications

Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Ported / Vented
Optimum Sealed Box Volume
This value indicates the ideal sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Optimum Ported Box Volume
This value indicates the ideal ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
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.
Cutout Diameter
The actual diameter of the hole you will need to cut out if you are creating a new mounting location for this speaker, or if you are mounting a subwoofer in a box.

Electromechanical Parameters

Free-Air Resonance (Fs)
The free-air resonance frequency of the subwoofer, measured in Hz. At this frequency the weight of the moving parts is perfectly balanced with the subwoofers suspension system.
Equivalent Compliance (Vas)
This is the amount of air that has the same stiffness as the subwoofers suspension. The greater the rating, the lower the stiffness and larger recommended enclosure. It is measured in Liters.
Total Speaker Q Value (Qts)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including all dimensionless losses. Essentially, a high Qts value (closer to 1.0) means the subwoofer is great for sealed enclosures and a low Qts value (closer to 0) means the woofer is great in vented enclosures. A Qts of around 0.45 means the woofer will work decently in either enclosure type.
Electrical Q Value (Qes)
The subwoofers relative damping (Q) at the resonance frequency (Fs), including electrical losses. Also called the mechanical damping of the subwoofer. The unitless measurement usually varies from 0.5 – 10.
Electrical Resistance of Voice Coil (Re)
Amount of DC resistance of the subwoofer when measured with an ohm meter. Typically, this will read less than the impedance rating of the subwoofer.
Mechanical Q Value (Qms)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including mechanical losses. Also called the mechanical damping of the subwoofer. This unitless measurement usually varies from 0.5 – 10.
Efficiency Bandwidth Product (EBP)
This number represents the trade off between having an efficient woofer and one with a wide bandwidth. To calculate this number, take the Fs and divide it by the Qes. If the number is below 50, the woofer is designed for a sealed enclosure only. If it's between 50-100 it can be used in either. Lastly, if it's greater than 100 it's designed for vented enclosures.

Specials with this Item

Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!

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
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating


Queen Creek, AZ

Beats Kicker!

November 21, 2010

We've always done Kicker, I have 2 10's in a 2dr coupe powered by a Soundstream trx700xx. These things hit pretty hard! I could've gone 12's but too much bass for me, for their entry level couldnt b happier and didnt require much power. These are by far a great product for budget and bass.

40 of 73 found this helpful

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grand rapids, mi

sounds spectacular

November 8, 2014

I have a bachelor's degree in sound design, so I have particular tastes. I already had installed db series door speakers in my car, and really just wanted to complete the set, hoping that it would be a good match. It was. I'm only running 100W to each voice coil, so it's a little underpowered, but is perfect for what I wanted. It is full and deep, with a smooth transition into the mid-bass range. Response is tight and clean, no muddiness. I built a custom enclosure for it, which is slightly larger than what the literature recommends, but it is sealed up tight, no air leaks. Don't put this in a ported or bandpass box. Put it in a sealed enclosure, and throw lots of clean power at it. The results are impressive. I was not interested in ghetto bumping, just in clean, hyper-realistic sound reproduction, and I could not be happier with how this experiment turned out.

30 of 58 found this helpful

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Daniels farrier

clanton, AL


May 26, 2015

Put 2 in pontoon boat sounds good With Rockford 1200 watt amp

4 of 7 found this helpful

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polk audieo


good sub for the money

May 29, 2015

this is a very good sub for the money installed 2 10s into 2 .66 sealed box with Rockford Fosgate Prime R1200-1D hits very hard and sound very clear. Would recommend them to any one im sure there are better subs out there but not at this price. Sonic is a great place to do business always fast shipping

3 of 6 found this helpful

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Buc Nasty


Tons of bass

October 17, 2011

No need for more bass unless your goal in life is to shake neighborhoods and cause your own hearing loss. I drive this with 350 watts rms, inside my trunk and never felt like more was needed. Great sub.

33 of 68 found this helpful

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Broke-town, MA

Great Subs

April 20, 2010

This subs is great. Its very clean . It hits very hard and deep for a 10. I love it. the sound quality is great and it also can get loud. and doesnt require alot of power. I got this bad boy in a bandpass box with about 480rms to 2 10's and these things rock..

30 of 66 found this helpful

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Colorado Springs, CO.

Awsome sub

December 13, 2014

Installed this baby in a super crew sound sealed box and put it in my 2005 GMC Sierra 2500HD. I am pushing it with a Rockford Fosgate 500 watt amp running in parallel @ 2ohms and it sounds great. Cant go wrong with this sub.

23 of 53 found this helpful

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Accessory Tools and Products

Accessories added

25 ft. of Streetwires 12 Gauge Speaker Cable

You'll need speaker wire to hook up that new subwoofer!

Your Price $44.95

Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

Your Price $14.99

20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!

Your Price $59.99

Dynamat Sound Dampening Trunk Kit

Did you know sound dampening will reduce those annoying rattles and even increase your SPL?

Your Price $94.95

Stinger Sound Dampening Trunk Kit

Stinger's Roadkill sound dampening series is sure to kill unwanted road noise and rattles! Enough sound dampening for your whole trunk!

Your Price $69.99

12 oz. Can of Adhesive Spray

Spray adhesive used for adhering carpet to subwoofer boxes without bubbles.

Your Price $6.99

40" x 15 Ft Piece of Premium Un-Backed Automotive Trim Carpet

Durable design for long life-span, available in many colors and shades.

Your Price $39.99

Gold Plated Dual Terminal Banana Plug Connector

Enables an expandable, secure connection accepting up to 8 gauge wire.

Your Price $1.99

2" Universal, Professional Heavy Duty Roller for Sound Damping/Dampening

Universal rubber roller to make it easy to install sound dampening.

Your Price $7.99

Car Stereo and Speaker Installation Tool Kit

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

Your Price $16.99

Xscorpion 9-Piece Nylon Plastic Pry and Chisel Tool Set

Easily removes dash/trims, door clips, panels and pins, rubber grommets and vehicle emblems.

Your Price $14.99

Cordless Multi-Functional Heat Tool Soldering Iron Kit

Continuous working lock allows you to work without holding down trigger.

Your Price $79.99

4 Ft of 1/4" Thick Black Heat Shrink Tubing

Provides abrasion resistance and added protection for your cables.

Your Price $3.99

1mm All Purpose Solder

Solder is all purpose for use on most projects where solder is needed.

Your Price $8.99

Polk Audio DB10G

10" db Series Subwoofer Grille

Your Price $19.99

10" Protective Waffle Subwoofer Grille

Keep your subwoofer looking amazing while keeping it safe.

Your Price $4.99

Scosche SPL Meter

Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB.

Your Price $21.99

1 Polk Audio DB1040DVC Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 Polk Audio DB1040DVC Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

3 Polk Audio DB1040DVC Subwoofers

Mono Amp

4 Channel Amp

4 Polk Audio DB1040DVC Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Browse 2 questions and 7 answers
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Why did you choose this?
Sonic Electronix Store
I have heard these subs in other systems in vehicles and on boats and they are a great sounding sub and provide with all the bass needed
Marshall H on May 20, 2015
Listened to a 12 inch and was hoping for the same results. Sounds awesome!
c g on Mar 26, 2015
Very good reviews online re: 2015 audio tests
Al C on Apr 1, 2015
Previously ordered Polk speakers and knew this would be a good match and quality
Bruce Q on Feb 15, 2015
recommended enclosure area?
A shopper on Jun 7, 2015
Best Answer: Polk says it doesn't matter but I have this in two different applications and the bigger box sounds bette
One is in a vehicle specific 95 firebird single box ant the other is a vehicle specific under seat truck box the bigger sounds better not over bearing though You dont need more then a 10 inch anyway hope this helps
Reply · Report · MICHAEL S on Jun 7, 2015
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Product Summary


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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 DB1040DVC