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Kicker CompRT 43CWRT672 CompRT shallow-mount 6-3/4" subwoofer with dual 2-ohm voice coils

Item # 206CWRT672

If you're looking for bass for a tight space, Kicker designed their CompRT subs with compact cars, pickup trucks,...

If you're looking for bass for a tight space, Kicker designed their CompRT subs with compact cars, pickup trucks,...

44 questions - 69 answers

Item # 206CWRT672

About the Kicker CompRT 43CWRT672

Bob Bihlmayer

A thin sub with fat bass

If you're looking for bass for a tight space, Kicker designed their CompRT subs with compact cars, pickup trucks, and ATVs in mind. The low-profile 43CWRT672 6-3/4” subwoofer performs just like a full-size sub, but without killing all your cargo space. This high-performance CompRT sub stands less than 3" tall, so your installation options are wide open.

A thin sub with fat bass

If you're looking for bass for a tight space, Kicker designed their CompRT subs with compact cars, pickup trucks, and ATVs in mind. The low-profile 43CWRT672 6-3/4” subwoofer performs just like a full-size sub, but without killing all your cargo space. This high-performance CompRT sub stands less than 3" tall, so your installation options are wide open.

Built with boom in mind

The 43CWRT672 comes equipped with a rigid injection-molded polypropylene cone that won't flex and cause distortion while you're cranking the bass. Its rubber surround will last through years of heavy use, combining with a special-design back and top plate to give you more excursion (which equals more bass) than other skinny subs.   

Made to work with many systems

This sub handles up to 150 watts RMS so make sure you've got a solid amp to power it. You can wire the dual voice coils for either 4- or 1-ohm total impedance, giving you more wiring options when setting up your system. This sub sounds great in a sealed enclosure.

Important Note: If you are wiring this DVC sub for low impedance, make sure that your amp is compatible. You can damage or destroy your amp by exceeding recommended minimum impedance.

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Product highlights:

  • 6-3/4" subwoofer with dual 2-ohm voice coils
  • injection-molded polypropylene cone
  • rubber surround
  • power handling: 150 watts RMS
  • peak power handling: 300 watts
  • frequency response: 30-500 Hz
  • sensitivity: 82.6 dB
  • top-mount depth: 2-3/4"
  • sealed box volume: .18 - .75 cu. ft.
  • grille not included
  • warranty: 1 year
  • MFR # 43CWRT672

What's in the box:

  • One 6-3/4" Dual 2-ohm voice coil subwoofer
  • Kicker logo sticker
  • 4 Adhesive backed screw covers
  • Manual (English/ Spanish/ German/ French)
  • Template on box

Customer reviews for Kicker CompRT 43CWRT672

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More details on the Kicker CompRT 43CWRT672

Pat M.

Product Research

Features

Dual Voice Coils: This woofer features dual 2Ω voice coils, offering wiring flexibility. When the voice coils are wired in parallel, the woofer presents a 1Ω load. When the voice coils are wired in series, the woofer presents a 4Ω load.

Shallow-Mount: Kicker's CompRT series is designed to minimize depth, giving you subwoofer options where standard enclosures don't fit. The vent-less, solid-pole design allows the woofer to be mounted directly against the rear wall of a sealed enclosure.

All-Weather: Although not marine certified, Kicker describes the CompRT series as weatherproof.

Sealed Enclosures: Sealed enclosures provide the most control over a woofer and provide accurate sonic reproduction, making them suitable to all types of music. Kicker recommends sealed enclosures from 0.18 ft³ to 0.75 ft³.

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Customer Q&A

44 questions already asked

Q
My door speakers are 6.5. Will these work with the factory amp that is in my 2017 Chevy Malibu?
casey  Mar 24, 2021
2 answers
A
If your amp has a subwoofer out then it should be fine. If not, you'll definitely want to get a crossover on an EQ with a subwoofer output to run this effectively.
alex  Mar 24, 2021
A
Yes
harold  Mar 24, 2021
Q
Can I put these in without an amp and buy one later, or will it cause any issues?
jacob  Feb 03, 2021
1 answer
A
More information is needed to be able to help with your question. I recommend contacting an advisor by calling 1-800-324-9695 to discuss your gear to check
jason  Feb 20, 2021 (Staff)
Q
Hi my system work with 4 ohm, if I replace the two speakers rear deck location with this 2 ohm, it will work all together???
carlos  Dec 22, 2020
2 answers
A
I hooked them up to their own amp. I changed email and can't see my account and sold the car, so I can't tell you which amp. Perhaps Crutchfield can help you. They cranked!
john  Dec 23, 2020
A
It will work if your amp can handle 2 ohn other wise you will have to wire the sub to be 4 ohm. To do that you can find wire diagrams on Google and here on Crutchfield. Very simple process.
jayson  Dec 22, 2020
Q
Do you need to install an amp for these subs?
jimmy  Dec 13, 2020
2 answers
A
Yes you do.
denis  Dec 14, 2020
A
I replaced a sub. My system had an amp for that speaker for the factory.
norman  Dec 13, 2020
Q
I have a 2002 Jeep Wrangler I bought this 2 ohm speaker. My jeep comes with 4 wires, red/black/brown/grey. I cannot get this sub to work at all? I have no clue how to wire it, I feel like I have tried every varitation. Any help would be much appreciated!!!!
matt  Oct 22, 2020
2 answers
A
Sorry I am unable to help. The only thing I remember from my install. I had to slightly modify my enclosure to get the speaker to fit. I do not recall any wiring issues.
mark  Oct 22, 2020
A
I have this sub, however, its running directly off an alpine amp. I recommend adding a head unit/stereo with 3 sets of pre amp outputs. Best of luck!
trey  Oct 22, 2020
Q
Will this work well in a portable bluetooth speaker setup with 100w max woofer output from the 2.1 amp? It will be running from batteries, so most of time it will not be pumping at max, but much more moderately.
jan  Jul 20, 2020
1 answer
A
Yes that should work fine - the Kicker is rated for 150 watts RMS. You will want to be sure that your amp is stable at 4 ohms however.
casey  Aug 06, 2020 (Staff)
Q
Do these sound ok for door speakers? Idk if id need an amp or not but i have the factory amp, gonna get 12s in the back later on.
joe  Apr 21, 2020
1 answer
A
No! This needs a box. Would blow your doors and rattle way too much. This is a subwoofer. I have one where my Factory sub was installed.
trey  Apr 21, 2020
Q
Do these come with everything i need to instal them to my gmc acadia?
joe  Apr 21, 2020
2 answers
A
I installed my speaker in a Jeep. Everything I needed was supplied. The only difference would be the location you install it in the Arcadia. Make sure you have the space for the new speaker.
todd  Apr 21, 2020
A
if your vehicle uses special speaker connectors, you will need to buy adaptors or cut oem connector and solder or crimp correct connectors
lao  Apr 21, 2020
Q
Grills available?
ronald  Apr 15, 2020
2 answers
A
Hi Ronald, I am sorry, but there are no grilles available for the Kicker 43CWRT672 subwoofer.
jessica  May 05, 2020 (Staff)
A
We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question.
thomas  Apr 29, 2020 (Staff)
Q
I have placed 6 of these in my truck. Not extremely happy. They say 150 watt rms. Does that mean my amp needs to be 900 watts? I'm hoping that may be the issue
bruce  Feb 27, 2020
2 answers
A
You will fry them, they aren't very powerful. Your not going to get the vibrations just a more bass in the sound.
bruce lee  Mar 24, 2020
A
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.
kristina  Mar 24, 2020 (Staff)
Q
Will this work in the front doors of a 2015 Kia Optima with no navigation or infinity system, connected to the factory stereo?
alexander j  Feb 25, 2020
3 answers
A
Will they make noise? Yes, most likely. However they will likely be very underpowered by about any factory amplifier.
todd  Feb 25, 2020
A
I never had mine hooked into a factory stereo but I can't see why it wouldn't work. Mine was set up to a Kenwood system in a Jeep TJ. I don't have the vehicle anymore but it worked just like I wanted!
brian j.  Feb 25, 2020
A
I connected the subwoofer to a factory radio in my Jeep Wrangler. The location was between the seats. I did have to modify the space to accept the Speaker due to it's depth. That would be a concern to look at is the depth you have available in the door.
todd  Feb 25, 2020
Q
I purchased this Kicker CompRT to put in my recently purchased 2006 Jeep Wrangler Unlimited. After pulling the center console I discovered that there was no blown sub (as reported) or even a wiring harness in place. Recommendations for acquiring or building a box, or building out the console to include wiring? Also, will the Sony MEX -N5300BT unit I bought from you power this? Thanks for your help!
daniel e  Dec 31, 2019
2 answers
A
We do not carry an enclosure to help mount this size subwoofer in your vehicle. We do have some other custom designed sub boxes to hold a 10" subwoofer in the cargo area. If you do find a way to mount this Kicker subwoofer where the stock sub would have been, you will need to get an amp to power the subwoofer. The Sony radio does not power one, but has preamp outputs to send audio to an amp that can power your subwoofer. I recommend contacting an advisor on 1-800-324-9695 to discuss options for the Wrangler that came without a factory installed sub and get a personal recommendation on gear to complete the install
jason  Jan 11, 2020 (Staff)
A
My jeep did have a sub in it. So I had the wiring, but I did have to modify the inside for it to fit. It works fine for me.
todd  Jan 10, 2020
Q
Will this fit the rear deck of a 2008 honda civic si?
robert  Dec 05, 2019
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.
kristina  Dec 19, 2019 (Staff)
Q
Will these fit in my 2011 ford taurus sho with Sony system and navigation?
brian  Oct 05, 2019
2 answers
A
Hi Brian, thank you for your quesiton! We have measured your trunk area, and have found that you have the ability to fit a sub box with the following measurements: 40", Height = 20", Depth (front-to-rear)= 20" at bottom, 20" at top. A custom installer should be able to assist you with building a box that would house the sub, and stay within the measurements we have listed for your Taurus. Feel free to chat with an Advisor online or by phone at 1-800-324-9695, if you would like more info!
jessica  Oct 15, 2019 (Staff)
A
Not sure but I would put them in a custom box for best performance. run your amp low so sub can heat up and break in properly. Nice sub
feliciano  Oct 06, 2019
Q
I have a Buick Encore 2016 and I was just wondering if I could replace the stock speakers with these speakers to maybe get more bass would it mess up the system or would it be a quick easy installment?
ricky  Sep 14, 2019
1 answer
A
We won't tell you it's impossible to put those in the doors but it would certainly not be an easy replacement and they would definitely need more power than the factory amp can supply. An easier option to add bass would likely be adding a separate amp/sub in a different location. If you want to explore those options let us know!
casey  Sep 24, 2019 (Staff)
Q
Hi, I want to install the Kicker CompRT 43CWRT672 on my 2017 Civic EX-T Sedan lower front doors. I'm looking for plug and play, will a Metra 72-7800 wiring harness work? Thanks in advance
roberto  Sep 08, 2019
1 answer
A
Robert, there will be no plug and play, and also you will likely need an amp to power those small subs, as your factory system will not drive them very well at all. I would recommend you get in touch with one of our advisors to discuss what you are wanting to accomplish in your vehicle. https://www.crutchfield.com/support/ContactUs.aspx
thomas  Sep 18, 2019 (Staff)
Q
Will this replace my beats sub in my 16 renegade?
tina  Sep 02, 2019
1 answer
A
This is not designed to be used as a replacement for door speakers. the impedances are wrong, and it is a dual voice coil subwoofer with low sensitivity, and high power needs. This would be better suited being used with a monoblock amp. You should reach out to one of our advisors for more personalized help! https://www.crutchfield.com/support/ContactUs.aspx
thomas  Sep 25, 2019 (Staff)
Q
Can you run 2 of these in an infinite baffle setup? Plan to mount using the rear deck. Have a 2017 Honda Civic EX Sedan
tai  Jun 19, 2019
1 answer
A
Thank you for your question! The Kicker CompRT 43CWRT672 is not designed to be used in an infinite-baffle setup. Kicker does recommend a sealed enclosures from 0.18 ft³ to 0.75 ft³. If you would like to check out options that would allow you to use an infinite-baffle, chat with an Advisor online, or give us a call at 1-800-324-9695. We will be happy to look into any possible solutions.
jessica  Jul 01, 2019 (Staff)
Q
If I wired this as a 1 ohm OR a 2 ohm for a GM factory MONSOON system in a 2005 Pontiac Vibe as a replacement subwoofer would the OEM amplifier handle be stable or would I need to install an aftermarket amplifier?
kirk  Apr 18, 2019
2 answers
A
I can't say if it'll work with your monsoon amplifier, but in my 98 firebird trans am the monsoon amplifier is powering two of these at 2 ohms without any issues.
christopher  Apr 18, 2019
A
I had a different car, however, I had to add an amplifier to avoid clipping at any lever greater than halfway.
craig  Apr 18, 2019
Q
Are these free air like the old model?
hayley  Apr 13, 2019
3 answers
A
no they are not. they need a good sealed enclosure but sound really good
juan  Apr 13, 2019
A
Hi Eric, I've never had the older model so I don't have an answer for you. I can tell you it fits into my Jeep TJ stock location in the console and sounds great. Regards Roger
roger  Apr 13, 2019
A
Yeah great buyEnter
feliciano  Apr 13, 2019
Q
Are these free are like the previous model?
hayley  Apr 13, 2019
2 answers
A
Don't buy them for your cutlass!
andy  Apr 13, 2019
A
I needed a 6in speaker for my BMW Z3 M and i Iove them works well for what i needed ...
darrell  Apr 13, 2019
Q
Does the Kicker 43CWRT672 pair well with Kicker 42PXA2001 and should the sub be wired series or parallel with the amp?
derek l  Nov 24, 2018
1 answer
A
Those would be a pretty good match. You would wire the Kicker 43CWRT672 subwoofer in parallel down to 1 ohm. That Kicker 42PXA2001 amp is pushing 100 watts at 1 ohm - right in the middle of the recommended 50 - 150 range of the sub. If you have any other questions about matching amps and subs or getting a complete cart with wiring and install gear you can contact our Product Advisors here: https://bit.ly/2QNxGQB --Cosmo
casey  Dec 05, 2018 (Staff)
Q
I have a 2008 impala LT. It currently has a JVC KD-X255BT that has built-in amplifier (22 watts RMS/50 peak x 4 channels) will these speakers work well with that?
brian  Oct 03, 2018
1 answer
A
Sorry, no. You'll need an aftermarket amplifier to power the 43CWRT672 properly. We recommend a minimum of 80 watts RMS per woofer. For additional assistance and personalized recommendations, feel free to contact us directly by phone or through our online chat service: https://www.crutchfield.com/support/ContactUs.aspx
ryan  Oct 10, 2018 (Staff)
Q
Will these fit in my mid panel location or rear door of my excursion? Would they need an amp? If so my radio head has a single rca out for a sub. Would I just split that circuit?
keith  Sep 08, 2018
2 answers
A
You can see if they are a recommended option for your vehicle by using the "Find What Fits" application on the main Crutchfield website: https://www.crutchfield.com/car/carselector.aspx?lp=%2fCar%2foutfitmycar%2fmycar.aspx If your stereo has a mono subwoofer output, yes, you'll likely need to use an RCA Y adapter to connect it to the left/right stereo input of an amplifier. For additional assistance and personalized recommendations, feel free to contact us directly by phone or through our online chat service: https://www.crutchfield.com/support/ContactUs.aspx
ryan  Sep 22, 2018 (Staff)
A
I don't know about fitment in your vehicle, but yes you do need an amp. I have these in the rear doors of my Chevy Avalanche and they would do much better if they had an enclosure, the doors have too much air space, these subs only want about a cubic foot sealed box space. I'm running a 300 watt mono kicker subwoofer amp to 2 of these subs model cxa300.1
adam  Sep 13, 2018
Q
DWill these fit my 2012 Honda Civic EX sedan, the front door /reAr deck?
nick  Aug 11, 2018
3 answers
A
No, these won't fit in your front doors. They could fit on your rear deck with a lot of cutting but would not recommend it. These are subwoofers and are designed to be installed into a sealed subwoofer box to produce lower frequency bass notes.
ken  Aug 16, 2018
A
Dont know, I put it in the center console of. TJ
james  Aug 16, 2018
A
I don't know about the exact fit, but I do know that you need to enclose these in a small box to get the best output. They are not going to work the way you want if they are free air. Unless you have some major space concerns, I wouldn't use these as a first choice. A good set of component speakers with good amplification gives you close to as much midbass but not quite as much lower bass output as these do if they don't have the right enclosure. If I had the choice I'd get some 8 inch subs in a sealed box with good power for some really tight fast bass if that's what you're after. Solid front stage, some rear-fill, or skip the rear-fill, have a really solid front stage and entirely remove the rear speakers (leave the grills} and use that empty space as a port to let the bass from your box in the trunk come into the car. Just my two cents.
adam  Aug 11, 2018
Q
Can I use this as a direct replacement for the factory, under the console, sub in my 2007 Escalade ESV?
baller  Apr 20, 2018
1 answer
A
It depends, if the size is the same then it should fit right in although you may have to cut the wires and attach them to the new sub.
dena  Apr 20, 2018
Q
Would these sound good with a factory stereo? 2016 mailbu limited.
bob  Feb 21, 2018
4 answers
A
Yes, however, it will need an amp for better performance.
ben  Feb 21, 2018
A
I would. Not recommend them for that
anthony  Feb 21, 2018
A
Yes definitely a great upgrade from the stock speakers.
alex  Feb 21, 2018
A
Youll have to check to see if they will replace the factory sub. But the sound quality is much greater then factory.
dena  Feb 21, 2018
Q
Will this fit a Lincoln town car with JBL sound system?
gary  Nov 12, 2017
2 answers
A
It will vibrate the hell out of your door and still hardly puts out any bass
anthony  Nov 13, 2017
A
Need more information to answer your question. Please provide more information.
scott  Nov 13, 2017
Q
Would this be a good replacement for a factory rear sub in the rear deck? Its the exact same size as the factory sub (6.75). In theory this is an infinite baffle setup so im just curious as to how well this sub would work doing a direct swap
tyler  Oct 29, 2017
1 answer
A
Much depends on the the number (single or dual) and impedance of the stock sub's voice coil(s) and the wattage of the factory amp. The Kicker has a minimum recommended wattage of 80 RMS so, most factory amplifiers will not be enough to power it properly. For additional assistance and personalized recommendations, feel free to contact us directly by phone or through our online chat service: https://www.crutchfield.com/support/ContactUs.aspx
ryan  Oct 31, 2017 (Staff)
Q
Aside from the obvious fitment issue, Would this be a suitable replacement for the factory subwoofer in a 2004 Jeep Wrangler Rubicon? I am willing and able to modify the stock subwoofer box.
ray  Oct 01, 2017
4 answers
A
Absolutely! Its a great speaker. It's only a little bit of modifying of the enclosure to make it work. Quick work with a dremel tool does the trick. It's plug and play. I have a 2004 Jeep Wrangler Sport and I love the upgrade. My originals were blown and crumbled when i took them out. I would definitely buy this again.
bryan  Oct 01, 2017
A
If you don't want any bass they would be great mid range not good subwoofer
anthony  Oct 01, 2017
A
Yes this fits and works however I added a Kicker amplifier to it and bypassed completely the internal system because it is underpowered for such a better sub. It will work but use the 43CWRT671 one ohm per voice coil speaker if you want to keep the factory amplifier. It has to be 1 ohm per voice coil if you want enough output to drive it at any volume. The original Jeep sub is 1 ohm per voice coil so it will match up. Id submit a picture but you can go to wranglertjforum and search for my article on the change out for pictures of how it looks after installation, RangerRick.
rick  Oct 01, 2017
A
Yes, you will be pleased with this over the factory sub.
keith  Oct 01, 2017
Q
Will this fit in a 2008 MB GL550 rear sub location without modifications or wiring harnesses? Any idea what the factory sub impedance is? I have a hunch 2 ohms (or 1 ohm!) could damage the factory amp.
doug  Jun 06, 2017
1 answer
A
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.
kenneth  Jun 06, 2017 (Staff)
Q
Would an amp be needed if I'm replacing my rear door speakers in my 2015 Hyundai Elantra GT?
matt  Mar 30, 2017
4 answers
A
Are you using this woofer? If so I believe so.
edson  Apr 02, 2017
A
The 43CWRT672 is actually a smallish sub woofer. Not sure that it would be the best choice for a full range speaker, and my have fitment issues in a rear door (unless specifically listed to fit). It's pretty deep for it's diameter and has baffles around the basket that might hinder fitment. Are your sure it will fit? If so, I recommend some kind of amplifier, be it an OEM sub amp or aftermarket. (I installed it in the center console of my Jeep TJ driven by the OEM amp).
kevin  Apr 01, 2017
A
You will most likely want an Amp with this speaker to get the best sound.
david  Mar 31, 2017
A
I have a amp hooked to mine and it is a bit much. Unless you need a dual voice coil, this full sub woofer has a lot of base. I am questioning why you want these a door speaker when a good coaxial speaker would seem more appropriate. Good Luck
scott  Mar 31, 2017
Q
Is there any building plans to build a box to hold 2 of these speakers in a Nissan versa hatchback?
daniel  Mar 17, 2017
1 answer
A
You can view the recommended box build in the Kicker owner's manual: https://pdf.crutchfieldonline.com/ImageBank/v20160626111500/Manuals/206/206CWRT82.PDF If you want to discuss what will work best in your Versa, feel free to contact an Advisor directly by phone (1-888-955-6000) on online chat. Hope that helps!
david  Mar 28, 2017 (Staff)
Q
What kind of amp does this require?
john paul  Jan 23, 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.
kenneth  Jan 26, 2017 (Staff)
Q
150 watt DVC ? Is it 150 per coil or for both?
mark  Dec 01, 2016
2 answers
A
150 Watts per coil. 300 Max
adam  Dec 13, 2016
A
150 watts per coil. 300 max.
alex  Dec 02, 2016
Q
Is this just 1 or pair?
carlos alberto  Nov 07, 2016
1 answer
A
Thanks for your question. This is for one (1) subwoofer only. You can find this information on the product page under "What's in the Box". Hope that helps.
kenneth  Nov 07, 2016 (Staff)
Q
will these fit the back door of my 2016 tacoma?
julius  Aug 22, 2016
1 answer
A
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.
kenneth  Aug 22, 2016 (Staff)
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