Customer Ratings & Reviews

A lot of materual

Ordered this for my F Super Cab. I just wanted some material to apply to the inside of the door skins. It is a lot more material than I needed. Ford already has a small amount of sound dampening material. It did quiet the interior as expected. Great product. Came with no instructions. I just used some alcohol to clean the surface first.

love it!!!

Love this product. Great price and easy to work with.

Great!

put on my trunk to stop rattles. worked great, doesnt sound like a tin can from outside. thick stuff definitely a good deal. as good, if not better, as the bigger sound deadener brands but at a lower price. i highly recomend

Impressive product

This is a very stout, impressive product. It feels thicker than the famous competition and there is no smell to it. The sheets you get are sort of a long/narrow size, so they are great for running vertically up the doors and on the outer door skin. You'll definitely want a source of heat when working with these and really, there isn't a better value for the kind of product you are getting here.

NVX 12ft.

This is great material for a great price. Ive bought multiple nvx dampening products and have been pleased with everyone. This this easily applied with a nix roller and contains the perfect amount plus some to use on your doors.

Seems fine

Used on rear door skins. No smell, easy to manipulate.

Great for Rattles

Installed this stuff in my front doors and enough for the speaker area in the rear doors. It only slightly reduced the road noise in my car, but tightened up the bass and reduce rattles by a huge degree. This stuff is easy to install and can often be bought on sale.

Good product

Easy to work with and in my opinion it performs better than dynamat!

Decent Dampening

I have had this for almost three months on my trunk lid and it has made a big difference. The rattling is not as bad as it used to be and it made a difference inside the car.

DON'T buy this if you live in arizona because the heat is too much for it.

NVX SDDK12

Excellent sound deadener for the money, very thick, no smell once applied, super tacky and sticks even to dirty surfaces. Applied in my doors it made a big difference inside the car, applied in the trunk the bass sounds much better inside but it didn't stop my trunk from flexing and sounding like it's about to explode. All in all excellent product and would definitely recommend!

Fantastic kit

This kit is almost half the cost of competitors and works just as good or better.

easy

As good if not better than others, and I saved $$$. Easy to use. Easier to press to surfaces than the stinger.

Hands Down

Hands down!!! this is good stuff for anyone, who would like to enjoy maximum output and clarity. NVX greatly enhances the timbre and the acoustic of your audio speakers,you cannot wrong with this

NVX Sound Dampening Material

This was very easy to work with. It seems to be as good as any of the more well know and more expensive brands. Sound dampening at least the doors is necessary to seriously improve the quality of sound in your vehicle.

Best way to improve your system's sound

I was desperate to obtain a warmer, natural sound in the Rav4 I had just bought and did not want to lose any storage room. I had better speakers and small woofers installed in the rear speaker compartments but was still left with a tinny sound. Advised by the installers of the improvement benefits of this sound dampener, I had it installed and then came back for more installation in the rear doors and rear floor (I had the front doors and front floor fitted initially). I am very pleased with the improvement and it is definitely worth the investment.

Awesome Stuff

I installed four 6x9 speakers in my car recently and noticed that the doors and trunk were rattling. I was recommended this sound damping for my car. I found it very easy to install and it made a huge difference. I noticed a huge change from not only on the inside but on the outside of my car. I would recommend using this stuff if you have aftermarket speakers in your car. GREAT BUY!

Best Sound Deadener on Market!!

I had bought the NVX 12 sq. ft. sound deadener and WOW!!! this stuff works better than dynamat, fat mat, second skin, you name it, it is the best on the market, with the best price on Sonic electronix!!!! It is way thicker than its competition and simple to install. It completely deadens the sound in my doors! I hope to purchase more for the cab of my truck soon because it makes my speakers sound phenomenal!!!
I recommend this to all my friends!!
Thank you Sonic!!

Major Improvement

I ordered the pack so I could take care of a few flex and crackle issues I had on my roof, I applied the material in about 100 degree heat and it stuck and stayed easily. I used the nvx roller to adhere it and it worked nicely. The difference was night and day, it's tighter, cleaner and harder hitting. I did 2 layers above the subs and 2 layers above front seats in my ext cab pickup. Im running 2 15s on 3000rms so you know if it worked for me, it will work for you

great value

It's great for sound damping i recommend this product for sound deading in any application

Good

This sound dampening is great. thick and does the job. Has been on less than a year so the long run I dont know yet but so far great product.

Great product

Very easy to work with and gets the job done. My rear deck and trunk lid stopped rattling and now my headliner started. Highly rcommended best bang for the buck

Good stuff easy to apply does the job

After an accident i decided to treat 2 doors with this product. The other 2 doors use the Raamatt product which is more expensive. Application and overall sound damping is very very close. Next vehicle I will likely do the entire job with NVX. It is amazing how far this stuff has come since the original tar no stick heat gun application stinky dynamat product back in the 1990's.

Amazing sound

I own an '05 Toyota Sequoia which had the factory speakers up until this summer.... Took the car into one audio store here in town and that wanted to charge me upward of $800 to purchase & install two front door speakers.... A buddy of mine recommended this site for all my audio needs.... I purchased 6.5in JBL's for an 8in opening.... The package arrived w/brackets and everything to be able to install these speakers... Took them to Best Buy .... The whole job cost me $200 including purchase of speakers!!! Awesome sound!!! Turn up the volume , turn up the treble I'm at a whole new level!!!

Very Thick

This kit wont take your stock stereo and turn it in to a pavement shaker but it will help kill rattles and really helps clean up the sound. Its thick and very sticky so installation could be done by hand (I just used fist pressure) to work it on to the panels and make sure they are clean! Its somewhat easy to contour to corners and edges once cut in to smaller pieces and best of all, no smell!

Overall, my road noise was still there (pretty sure you need to deaden your entire car for that be noticeable) but I did find my music with a lot of mid, such as metal, sounded MUCH better in my standard coax alpines.

Awesome! Better than Dynamat!

For one this stuff is thicker. And half the price of Dynamat. I used the bulk kit in my car and loved it. Made a huge difference with road noise and unwanted rattles. I would highly recommend this to anyone!

jbl p662

I just installed 2 weeks ago. Drive with mb quart and it sound Very good.

NVX SDDK12

First sound deadener I've ever bought, worked great, easy to work with, helped with road noise and really brought the bass out in the front door speakers of my Cavalier!

Magnificent!

Don't waste your money on daynamat you can get the same quality at half the price with nvx. Definitely recommend this.

Lovely Speakers!

Replaced stock speakers in my 91 prelude and wow are these great! I have it hooked up to a 600 watt sony explode and they are loud! Lot's of bass in these speakers and I may have to invest in some sound dampening.

Had to put the speakers in front of the door panel because it would not fit under. I love these speakers and are very happy.

These will work

Put these in a buddies daughters car. Put Infinity's in rear. Autotek 4 ch. amp with a Pioneer head unit. These have good low end, okay mid range and good high end. Had to back off the high end. Once I got tweaked they were good. She is very happy. Now wants a sub.

Great Speaker

Great sound if connected with the right amp, and they looked very solid. Push them to the max you might get distortion but if you get the right settings you will get great sound quality. it is comparable with many high end sound systems that come in some cars as standard.

JBL car speakers for life.

I have owned a lot of car speakers over the years, and these are the best by far. I mean they blow away the last set I had, and for about 1/2 the price... JBL is really designing a wonderful car speaker, not just throwing something together. If your in this price range just buy them, you will be surprised by how good they sound. Very detailed, and smooth response.. An absolute bargain....

Don't Hesitate - Buy these

I was looking for an affordable speaker but with good full sound. Here was my setup - 2004 nissan 350z - 2 pairs of these jbls (door and behind seat) a rockford fosgate 600w 5 channel amp and a jl audio 10 sub. I can't comment how good these are without an amp or sub to back them up. But I've gotta say - they produce beautiful crisp and full sound. They make your music come to life - (and I didn't even use components up front - just straight coax). These are not only affordable compared to some high end speakers but I swear they put out some beautiful sound. My car sounds so good it's honestly absurd - I have done some car audio upgrades on previous vehicles and been disappointed Too much treble (bright) or bad quality. Finally I got it right with these speakers. oh and I received my order the next day even though I used their free standard shipping. Why order from anyone else! P.S. I am picky when it comes to my audio.

My JBL'S

Good and clear sound.

WOW

These speakers are really really really really great, sound is clear and you can hear every voice and instrument as in a concert. With the correct amp, you have a clear middles, the sound of really loud tweeters and the power of deep bass.
JBL is quality just for selected ears hehehe...

5star

I am happy to say my system is all jbl crystal clear and hits,many thanks sonic electronix

Sound great

I installed these speakers in my 03 silverado, man do they sound sweet. I used to have alpine typeS speakers in the door of my old truck so when i got the 03 i changed it up and put in these JBL's and im sure glad i did. The JBL's blow the alpines away. I have a 4 channel amp, so with these hooked up along with the sub the sound is amazing. Great highs, lows and mid. May want to get the sound dampener for the door, these do have some good bass and will rattle the door a bit.

Great speakers

Bought these speakers august 2011 went in the front doors of my 89 probe and a clarion 640 amp giving these speakers 75 rms on 2 ohms. Man these speakers when tuned properly sounds so sweet. Excellent bass, excellent mid bass and excellent highs. trust me you wont regret buying these speakers. They are built tough and to handle power. Love JBL products. Running JBL gto 628 in the back and JBL 1214D being pushed by a JBL gto 300.1 mono amp, Subwoofer wired down to 2 ohm so amp can give it 294 rms.

Best Bose replacement speakers

Compliments a factory Bose amp the best. Sounds better than factory Bose speakers.

By JORGE on April 14, 2015 Verified purchase

great value.

I like this sound deadner, before I would use peel and seal in my doors but got fed up with the thiner material so I bought this. I have used it in different cars, family and friends and my own and I like how easy it is too cut, and apply. Its tacky but not tacky enough that if you accidently stick it in the wrong spot you cant remove it. I also use the nvx roller which makes it allot easier to apply then just by hand. Iv had mine installed in my doors and trunk for over two years in the northern cali weather and still running strong without that nasty odor people think deadner has. Over all i would reccomend it to anyone looking to improve their midbass and stop those trunk rattle vibrations at a good cost.

By Alex on October 26, 2016 Verified purchase

loud and clear

Perfect, i bought this product with a pair of 6x9 JBL's,hook them up with an MBQuart 600.4 amp, couldn't be any happier. I do recommend this product.

Well Made & Good Value for the Price!

There's several manufacturers to choose from when it comes to dampening material these days. I have a hard time believing any specific brand is better than another, outside of knowing I want something that is on the thicker end AND with aluminum siding. I found there with NVX's product and it seems to offer more material for the price. I installed on the rear quarter panel of an SUV and it does work well! Thanks!

By Anonymous on June 27, 2019 Verified purchase

Perfect!

Easy to cut and install! Sticks and molds well everywhere I have used it! It really works!! Thanks!!

Thick! Great product

I installed first on my rear wall, in my truck. INSTANTLY noticed a sound difference after installed. Truck sound was tighter and road noise was cut down too. Very impressed.

By Dustin on March 22, 2018 Verified purchase

Correct install kills the rattles

Enough product to do my whole car. Rattle problem solved.

The only choice

I've been using this stuff for years. Extremely good adhesive and thicker than competitors. I won't even consider another brand.

By Andrew on September 15, 2020 Verified purchase

Best Price at 90Mil Thickness

I shopped all over for good prices on decently thick, quality deadener, and found this to fit the bill. I was not disappointed by the quality of the product, and the results were as expected. Just make sure the material is warm before applied, or it doesn't form as nicely.

Amazing!

These are excellent quality sound damping panels. Easy to cut and apply. I did not use much on my door panels. Only where cables could possibly rattle against the frame and applied some on the frame behind the speaker. What a difference It made with sound level and bass. My speakers sound loud and clear.

By Marco on June 5, 2022 Verified purchase

great

Like the other NVX products its a great value and works well. Sticks great and doesn't smell like some other products I have used in the past.

By James on March 7, 2018 Verified purchase

Excellent

If you're on the fence about this stuff vs dynamat look no further , do yourself a favor and get NVX , every bit as good as the other with a better price point .

By Chris on June 26, 2017 Verified purchase

Great deadner

This NBC deadner is awesome!! Works great and added better sound quaility to my new speakers stopped all the little rattles in my doors and covered all four of my doors!! Great product!!!

By daniel on February 24, 2017 Verified purchase

Big bang for your duck !!

This stuff is heavy looks like what we use to hold in the little kick window on doors of the big trucks.

By Red on July 21, 2016 Verified purchase

Trunk silence

This is good quality material. Does the job. Great value for the price I have more left over than expected

By Andrew on May 5, 2022 Verified purchase

Good stuff.

Easy to install. Not thin like some of the other products I have used. Very good price for the product.

By Roger on March 12, 2022 Verified purchase

sounded good until broke

cone came off frame didnt beat on them either but sounded good while lasted huge huge magnets better bass than infinity kappa better highs on kappa

good bang for the buck.

These are ok. Go 75% volume n they start clipping but if u have the right amp the adjustments will fix it. Not good paired up with the 6 by 9's p963.

Great Speakers for being less than $100

I purchased these for a friend who needed wanted to upgrade the audio in her vehicle. She has an aftermarket headunit and I had a JBL GTO1004 amplifier that we used to power these.

After doing some basic deadening on the doors, the bass response of these speaker is actually pretty good. On a stock HU you could go as low as 60hz with these.

Amplifed I had better results with a 80hz crossover, although when overpowered, 100hz was more effective. Regardless these take most of the power the amp has to offer with no complains and for the price are very good. I have about double rated on them and only when I really push it have I ever heard any protest. On rated power these will get pretty loud and will have no durability issues if crossed over properly.


I have lots of experience with car audio, my own vehicle is a fully active front stage using about $1000 worth in raw drivers, so I DO know good sound.

Anyways the 1 inch tweeter on these puts them ahead of many coaxial units that only utilize a 3/4.

Love these speakers!

I have installed these speakers in three different cars. I love the way JBL speakers sound. Quality construction and quality sound.

By Marc on November 29, 2015 Verified purchase

Good value

Sound really good in the doors of my blazer with 100 watt amp really clear sound

By Anonymous on September 8, 2019 Verified purchase

Excellent products at the best prices.

By Leo on December 28, 2024 Verified purchase

Better and thicker than Dynamat

It’s a no-brainer; this brand of sound deadening is the best for what you pay for. There are no drawbacks for this cheaper option.

By Martin on May 17, 2024 Verified purchase

Thick and shiny

This stuff is heavy duty. I have no doubt this stuff is going to help on my doors. I love the shiny top, even though you can't see it once installed it looks good coming outta the box. Would def recommend this product along with any other NVX product. Have been using NVX for over 5 years and their products have never let me down

By Johnny on June 3, 2026 Verified purchase

Like concrete

Nvx continues to deliver. This stuff worked great. The price is phenomenal and my doors turned out great and way better sound quality with this sound deadening added

By Ron on April 2, 2026 Verified purchase

Awesome stuff

worked better than the dynamat for me at a way better price

By Daniel on September 29, 2025 Verified purchase