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Polk Audio DB 842 DVC

DB+ Series shallow-mount 8" subwoofer with dual 4-ohm voice coils

Item # 107DB842D

Polk Audio's DB+ Series subwoofers combine high-tech materials and advanced design to give you smooth, powerful,...

Polk Audio's DB+ Series subwoofers combine high-tech materials and advanced design to give you smooth, powerful,...

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About the Polk Audio DB 842 DVC

Hard-hitting bass

Polk Audio's DB+ Series subwoofers combine high-tech materials and advanced design to give you smooth, powerful, hard-hitting bass without stressing your wallet. The DB 842 DVC 8" subwoofer boasts a rigid polypropylene cone and durable Santoprene™ surround built to handle big power over the long run. Its low-profile design means you get serious performance from a sub that takes up less space.

Hard-hitting bass

Polk Audio's DB+ Series subwoofers combine high-tech materials and advanced design to give you smooth, powerful, hard-hitting bass without stressing your wallet. The DB 842 DVC 8" subwoofer boasts a rigid polypropylene cone and durable Santoprene™ surround built to handle big power over the long run. Its low-profile design means you get serious performance from a sub that takes up less space.

Dual 4-ohm voice coils

This sub's dual 4-ohm voice coils allow you to wire your system to draw max power from your mono amp or to safely hook up multiple subs. Match a DB+ sub to a suitable enclosure, and enjoy impressive bass punch rarely found in this price range. Polk Audio tests this sub rigorously for environmental effects caused by sun, moisture, and extreme temperature changes. They even certify this sub for marine applications, so they're a great choice for your boat too.

To drive this single subwoofer, we recommend a mono amplifier rated between 185 and 375 watts RMS at 2 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.

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Product highlights:

  • 8" subwoofer with dual 4-ohm voice coils
  • polypropylene cone with Santoprene rubber surround
  • marine-certified for use in boats and convertibles
  • handles up to 250 watts RMS (125 watts per coil)
  • peak power handling: 750 watts
  • frequency response: 30-200 Hz
  • sensitivity: 84 dB
  • top-mount depth: 3-3/4"
  • sealed box volume: 0.5-1.2 cu. ft.
  • ported box volume: 0.66-1.2 cu. ft.
  • grille not included
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # AA9843-A

What's in the box:

  • One 8" subwoofer
  • 1 Foam gasket
  • Eight 1-3/8" Allen head stainless steel screws
  • Wiring diagram/ Specification sheet (English/ French/ Spanish/ German/ Italian)
  • Online registration information

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Polk Audio DB 842 DVC reviews

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Crutchfield customer from Vinton, VA on 9/16/2019

2005 Acura RSX

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nice sub, Polk speakers are my favorites both home and auto!

Pros: really nice lows from this 8" shallow sub in a pioneer shallow enclosure, hv always had 10",12",15" bfore, highly impressed!

Cons:

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Polk Audio DB 842 DVC

Crutchfield customer from Schenectady, NY on 9/8/2019

2004 Mitsubishi Endeavor

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Easy to install and sounds great!

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0 of 0 found this helpful

Great sound

Crutchfield customer from Raleigh, NC on 9/1/2019

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Don't let the size of this little baby fool you ! It really delivers great big bass and sounds awesome!

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0 of 0 found this helpful

Polk Audio DB 842 DVC

Crutchfield customer from Greenbelt, MD on 7/8/2019

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It works. Still in the break in process. It's a sub. not much more to say about it.

Pros: It works. Still breaking it in.

Cons: None at this time.

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0 of 1 found this helpful

Good little sub

Crutchfield customer from Knoxville, TN on 5/31/2019

2002 GMC Yukon XL

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This is a decent sounding sub for its size! In a well-made & tuned enclosure it will serve you well! As others have mentioned-it will not fit in the stock box of a 2002 GMC Yukon without a 0.75" spacer ring. You will likely have to modify the ring as well. So bear that in mind.

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1 of 1 found this helpful

Fantastic bass

Alex from Ft Worth, TX on 5/30/2019

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I bought this to replace my factory subwoofer in my 2012 Toyota Sequoia. It fit the factory opening but the screw holes didn't line up. No big deal as a template and screws are provided to drill new holes. The factory harness doesn't fit but Crutchfield included a free set of adapters. This subwoofer combined with an aftermarket amp makes the bass really come alive. It pounds hard now. Hard to believe it's just an 8 inch subwoofer. It sounds fantastic.

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1 of 1 found this helpful

Great option for stock replacement

Crutchfield customer from York, SC on 4/25/2019

2001 Chevrolet Suburban

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Great sounding sub for my 2001 Yukon! Clean, tight, bass. Not overpowering, but perfect for stock replacement. Does require 1/2" spacer due to mounting height difference vs. OEM sub, but fits in the stocknenclosure perfectly.

Pros: dual voice coils are perfect choice for stock amp. Bass is clean and tight.

Cons: mounting height requires 1/2" spacer in stock enclosure of Yukon. I wasnt' prepared for that, but it was easily accomplished in my shop. I would buy this speaker again, and I highly recommend it for stock replacement.

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Polk Audio DB 842 DVC

Jason from Beaverton, OR on 3/29/2019

1998 Jeep Cherokee

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One of the better 8" subs I have had over the years. Fits great in my low profile box and adds just enough bass to my system. Wasn't looking for something to crazy. Just upgrading my 20 year old Jeep with new speakers and this fit the bill perfectly.

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Deep, boomy bass!

Crutchfield customer from Plano, TX on 3/11/2019

1999 Mercury Mountaineer

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This sub works fine on it's own but really works wonders after hooking it up to a monoblock amp. I strongly recommend this sub to anyone looking for boomy bass.

Pros: Shakes my car.

Cons: Shakes the enclosure sometimes but i think that's mostly the fault of enclosure (it's plastic)

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1 of 2 found this helpful

Polk Audio DB 842 DVC

Crutchfield customer from Boalsburg, PA on 2/8/2019

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Unbelievable amount of bass from a small speaker. Installed in a friend's 93 AM General Humvee (these vehicles are extraordinarily loud at idle with almost no sound insulation), and used a very small shallow mount box. Laughed because the bass shakes almost as hard as both of my Kicker Comp 10s. Bass is also super tight and accurate, definitely the cleanest sub I have installed.

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Polk Audio DB 842 DVC

Crutchfield customer from Winston, OR on 2/4/2019

1997 Ford Explorer

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Received it quickly! i haven't had a chance to install this as of yet I will soon when the weather clears!

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0 of 5 found this helpful

2002 Chevy Tahoe

Daamon from Wilmington, DE on 9/21/2018

2002 Chevrolet Tahoe

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Great little sub Installed in factory location and it sounds great

Pros: Sounds great

Cons: None

Crutchfield response on

2 of 2 found this helpful

Great value

damein from Chattanooga, TN on 9/9/2018

2002 Ford Explorer

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Great sub for the money. Replaced factory sub in an 02 explorer sounds great.

Pros: Really good sound for great value

Cons: None

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1 of 1 found this helpful

Polk Audio DB 842 DVC

Glenn from Springfield, MO on 6/28/2018

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For am 8" yes they do very well

Pros: None

Cons: None

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0 of 0 found this helpful

Didn't want a box, don't need a box

mike from Miami, FL on 6/26/2018

2017 Dodge Challenger

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Nice bass for my rear shelf. Really helps my 6.5s

Pros: Fits my 8"hole in the rear shelf

Cons: none yet

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1 of 1 found this helpful

Polk Audio DB 842 DVC

Crutchfield customer from Frederick, OK on 6/18/2018

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Work perfect

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0 of 0 found this helpful

Polk Audio DB 842 DVC

DC from Denver, CO on 6/18/2018

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Easy fit and great sound!

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0 of 0 found this helpful

LS430 Mark Levinson replacement

Clipz from Pearl City, HI on 4/17/2018

2001 Lexus LS430

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Perfect fit. Great quality. Sounds awesome!

Pros: DVC configurable to 8ohms

Cons:

Crutchfield response on

1 of 1 found this helpful

Great sound over factory

Roger from NM on 2/22/2018

2013 Ram 3500

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Hands down better sound than factory sub in New ram truck. Easy install no surprises, 15 min install.

Pros: Quality ,price,ease of installation

Cons: Made in China, we have to conquer this

Crutchfield response on

14 of 15 found this helpful

Polk DB 842 DVC

Joshua from Goodyear, AZ on 1/31/2018

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Have it in a sealed box .1 cubic feet smaller than recommended in a 300 rms kicker amp. Gets warm when I have the bass knob all the way up and subwoofer level set to level 3 on my Kenwood stereo, but stays cool when set to level 1. It's very loud for a sealed 8. The sub is in the very back of my van, but I can clearly hear and feel it in the front seats.

Pros: Loud Well Built Great in a sealed enclosure

Cons: None

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2 of 2 found this helpful

Polk Audio DB 842 DVC

Crutchfield customer from Hellertown, PA on 1/2/2018

2002 Nissan Frontier

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Not quite a direct replacement for 2002 Nissan Frontier cc.. it needed a spacer to fit in the factory shallow sub box.

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1 of 6 found this helpful

Polk Audio DB 842 DVC

Crutchfield customer from Columbus, GA on 12/8/2017

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Simple design, versatile wiring options, great sound quality for an 8" unit. Don't let it fool you; in a small sealed enclosure powered by a sound ordnance M350-1 this sub can get down!

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Crutchfield response on

2 of 2 found this helpful

Polk Audio DB 842 DVC

Crutchfield customer from Denver, CO on 12/7/2017

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Good sound good value ..

Pros:

Cons:

Crutchfield response on

0 of 1 found this helpful

Polk Audio DB 842 DVC

Crutchfield customer from Brownsville, TX on 12/4/2017

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Excellent product for a low price, easy to install and compact design.

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0 of 0 found this helpful

Great Sub!

Neil from Lathrop, CA on 12/1/2017

2014 Honda Civic EX

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Great Sub! Put it in a ported box, gets the lows really good. First amp I bought it felt like it wouldn't "push" the sub much so ended up doing 350 watts bridged and it's handling well. Had some bass adjustment (Brought it lower) so I'm not pushing the sub but after hits very clean, tight bass. If you are looking for a sub that just needs to replace factory sub or want just clean bass that doesn't rattle every nut and bolt then this is a great sub!

Pros: Small, hard hitting sub doesn't take up space

Cons: Have to have the right power so it's not over powered by distorting.

Crutchfield response on

1 of 1 found this helpful

Clean Bass reproduction an a very compact package

David from Cranbury, NJ on 11/19/2017

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This sub provides clean punchy bass. Installed three behind the seat of my regular cab pickup and could not be happier with the results. I listen to a lot of different types of music. 8" subs are my go to since they are very versatile. These great performers really do complement everything from Rock to Classical to Rap to Opera and everything in between.

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1 of 1 found this helpful

Awesome Build, Sound , & Great Price

Jose from San Jose CA on 7/28/2017

2010 Dodge Challenger

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Great Build Quality @ Great Price. This is my 1st Polk Audio purchase and I am more than pleased. I used it to replace my Stock 8 Inch Sub in my 2010 Challenger. I left the stock AMP since Has the sound package 2 with an amp that is a little over 360 Watts and it is enough to drive it. It sounds nice and deep once the Volume and Bass is adjusted. I recommend pairing it with an After-market Amp to make sure it reaches its full potential. That is next on my list. The sub looks like it is build to last and it comes in a Low Profile form which was a must for the install in the challengers rear deck.

Pros: Awesome Build, Sound , & Great Price

Cons: Could Use an after market AMP to give it more kick

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6 of 7 found this helpful

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<< >>

Product Research

Features

Dual 4Ω Voice Coils: This woofer features dual 4Ω voice coils, for wiring flexibility. When the voice coils are wired in parallel, the woofer presents a 2Ω load. When wired in series, the woofer presents an 8Ω load.

Marine Certification: Polk DB+ series speakers are marine certified (IP56 rated), making them a good choice for boats in fresh water, convertibles, motorcycles, ATVs, and other applications where the speaker might get wet. Because they have coated steel baskets and the terminals are not covered, we do not recommend using them in salt water environments.

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.

Sealed Box Volume: Polk recommends a sealed enclosure between 0.5 ft³ and 1.2 ft³.

Ported Box Volume: Polk recommends a ported enclosure between 0.66 ft³ and 1.2 ft³.

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
cheap [ adler  May 05, 2019 ]
A
I love Polk speakers. I have only heard good quality from its brand speakers. You can hear the richness in the delivery. This speaker is to replace the 'Premium' sound woofer in my wife's Sonata Ltd. Maybe this one will be a bit better for the built in amp so that she doesn't blow it out this time. [ Rahmel  May 03, 2019 ]
A
As a replacement for the factory JBL. [ JAIME  Apr 12, 2019 ]
A
It fits my Civic AND it's on sale! [ John  Apr 02, 2019 ]
A
This product is a very high quality brand, and the reviews had someone with a 2002 Chevy Tahoe that has installed this before. [ GINO  Mar 26, 2019 ]
A
Restores vehicles original sound at reasonable cost. [ MICHAEL ALLEN  Jan 14, 2019 ]
A
Based on previous reviews and price point. [ Russell  Dec 14, 2018 ]
A
Love Polk products, combining good price point and good quality. I chose 2 Shallow 8" woofers for my reg cab 76 Chevy C10 pickup. After I create a custom sealed enclosure it should sound great. [ KYLE  Nov 24, 2018 ]
A
Because of the reviews and it fit into my factory subwoofer enclosure. It was also the only shallow mount 8' subwoofer above 2 oHm with a dual coil. [ Brandy  Sep 01, 2018 ]
A
Replacement for factory sub [ Brook  Jun 20, 2018 ]
A
Baswd on reviews from othee Lexus Ls 430 Mark Levinson Stereo owners [ S  May 16, 2018 ]
A
dual Voice coils that allow me to get to 2 ohm input. Will be returning the DB842SVC I purchased last week. [ Robert  Apr 09, 2018 ]
A
Because my whole system is Polk Audio. I really enjoy the sound quality. I'm a Polk Audio fan. [ Tim  Dec 27, 2017 ]
A
I heard Polk products are good quality. [ Gerardo E. Jaim  Nov 28, 2017 ]
A
Brand reputation , products specs & price [ Martin  Nov 20, 2017 ]
A
This item had a five star rating for the price. [ Cameron  Sep 05, 2017 ]
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9 questions already asked

Q
Can this be mounted free air? I want to mount it in to expiation wall on my pontoon. It would actually be in a fiberglass enclosure that isn't sealed and is way too large for a speaker housing.
[ Jadmere  May 27, 2019 ]
1 answer
A
You're always better off calling and asking them. When you tell them what you want to do, they might have a better match for your application. But for what it's worth, the sub in my Lexus is free air and it works and sounds great in there.
[ Ryan  May 28, 2019 ]
Q
Will the factory amp in my 2007 Ford Expedition work with this sub?
[ Robbie  May 09, 2019 ]
1 answer
A
You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility with your factory system. They will be able to pull up your vehicle and see if this will integrate. If it does not, then they will also be able to discuss other options with you.
[ Krissy  May 24, 2019 ]  Staff
Q
Can this be installed in a door and used as a mid bass driver?
[ Alexo  May 08, 2019 ]
1 answer
A
It is not intended for that, and will not reproduce the frequencies that a mid bass driver will. This is a subwoofer and is intended to produce bass frequencies.
[ Calvin  May 15, 2019 ]  Staff
Q
Will the depth fit a stock replacement for a 2004 mitsi endeavor?
[ Michael  Apr 20, 2018 ]
1 answer
A
You can check to see if this will fit your vehicle by using our Outfit My Car tool: http://www.crutchfield.com/car/carselector.aspx For additional details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle.
[ Krissy  Apr 23, 2018 ]  Staff
Q
Will this fit in the existing 8" sub enclosure in the door of a 2012 Mustang Coup? Especially curious about depth.
[ Dennis  Apr 09, 2018 ]
2 answers
A
I installed this in 2001 Yukon XL, with a rear speaker box. I am not sure if it will fit you application. The speaker is 4 1/2" deep as the magnet has a slight "hump" on back. Good luck.
[ Thomas  Apr 10, 2018 ]
A
The depth is 3-3/4". Keep in mind this is top mounted depth. If you have the room on the top side for the rim then you should have no problem installing this in your enclosure. If your mounting this inside the enclosure, I think you may have an issue if the depth of the enclosure is shallower than 4 inches.
[ Mark T.  Apr 09, 2018 ]
Q
Will the factory amp in my 2006 Lexus ES330 non Mark Harmon premium sound push this sub in the rear deck?
[ Sid  Feb 07, 2018 ]
4 answers
A
How many watts is the amp? Are you going to use it to power the existing speakers too? If the answer is yes. Then I would save up my lunch money for another couple weeks and invest in a mono amp dedicated to pushing the sub. I bought an open box DS 18 candy amp from _mazon for ninety bucks and am so glad I did. I know there are bigger and better amps out there, but for pushing 1, 8" sub well worth the extra ninety and extra time on the install. I didn't even bridge the amp so I'm 4 ohms and 300 watts and can double that if iI bridge to 2 ohms. Plus the amp is a third of the size of most amps. But the fact I've got it in the rear of my work van (Nissan NV200) and the thing just pumps with 2 polk 6x9 2 ways, a set of 5" JBL 2-ways up front and a pioneer 45 watt x4 mini amp . Stick with the Polk sub though, it's a really great value considering its pedigree! Good luck!
[ JOHN  Feb 13, 2018 ]
A
It all depends on the output of your current amp these subs at normal operation need 250 watts if yoir current amp doesnt have at least a 500 watts your not going to get the best performance from this Sub
[ Gerardo E. Jaim  Feb 10, 2018 ]
A
In order for your factory amp to power the sub, you will need to purchase a two ohm subwoofer. I found out the hard way after thinking factory JBL amp would power subwoofer.
[ Brandon  Feb 10, 2018 ]
A
You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility with your factory system. They will be able to pull up your vehicle and see if this will integrate. If it does not, then they will also be able to discuss other options with you.
[ Krissy  Feb 10, 2018 ]  Staff
Q
Is this subwoofer suitable for a free air application or do I need an enclosure for it?
[ greg  Aug 10, 2017 ]
2 answers
A
I framed in an open section in the back of my work van (nissan NV 200) skipped that over priced dyna mat and used neoprene that was a wetsuit at one time along with some 3-M adhesive and a lot of caulk. I also installed 2, 3" passive radiators on either side of the sub because it was a pretty big space and closed it all up with heavy foam insulation and a 3/4" piece of plywood.
[ JOHN  Feb 13, 2018 ]
A
This is a new model and we just have the preliminary information provided by Polk at the moment. They do provide airspace recommendations for both sealed (0.5-1.2 cu. ft) and ported (0.66-1.2 cu. ft) enclosures. While they make no mention of "free Air" installations, they do state on their website that the subwoofer "Fits in any enclosure or application." I hope that helps. My Bio: https://www.crutchfield.com/bio/Ryan
[ Ryan  Aug 12, 2017 ]  Staff
Q
what amp should I match up with this? Just want to run one of these Subwoofer in my jeep
[ parmetej  Jul 24, 2017 ]
1 answer
A
Thanks for your question. For information on selecting the best amp for your sub I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the amp models and help you make the best choice for your system.
[ Kenny  Jul 25, 2017 ]  Staff
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