Customer Ratings & Reviews

good stuff

I got this free when i ordered my 4x6 speakers i installed it on the rear set no space in the front openings so far so good still sticking to the metal and no rattles.

Nice Wiring Kit

This is a nice quality kit at a fair price. It had everything that was needed to complete the task.

I had purchased another kit that I really wasn't happy with, and decided to purchase this one. I liked the attention to detail in the preparation of this kit. Recommended.

Works pretty good

I bought this product for my trucks doors, and I noticed it's thicker than other sound dampening material I've used before that I paid a lot more for. This is a great product at a great price

Easy to use, good performance!

We used this in conjunction with a component speaker upgrade to a 2003 VW Passat. This material is simple to use (if you can work scissors and peel off adhesive backing, you can handle this stuff!), and you can easily cut it to any size or shape to fit your particular vehicle. Installing this material was the easiest part of our whole car audio upgrade project!

EXCELLENT

Very nice sound dampening material easy to install and gives a great added depth to the sound of yr system, deeper bass and mids and also minimizes the resonance of the factory locations

HIGH QUALITY

EASY TO CUT TO THE SIZE YOU NEED, DOES A GREAT JOB AT MINIMIZING VIBRATIONS

sound deadener

Amazing stuff I wish I could afford to cover my whole truck with it!

Great Buy when 50% off

Now this product is good quality! I highly recommend this product!

Nvx = quality at the best price.

I'm so happy with all my NVX products. They are always the best in quality and price. No smell and if it's not a lot you can apply it without a roller. (I used my hands and the back of a screw driver to really smooth it out)

Does the job great

I would definitely. Recommend this it was part of a promotional. Thing used alot of other brands would say works just as well if not better glad i did the deal . Now i can get more for cheaper. "Get it you wont be disappointed "

BETTER THAN DYNAMAT AT A BETTER PRICE!

BETTER THAN DYNAMAT AT A BETTER PRICE!
Very sticky backing and very easy to install.
The NXV product line offers top notch performance with awesome value that can't be beat for the price.
I am speaking from 27 years of car audio experience.
LOOK NO FURTHER YOU HAVE FOUND WHAT YOU NEED...NVX !

NVX

I would recommend the NVX dampening sheet..because it's the best one on the market

Great!

Nice thick and easy to install. Improved sound and road noise!

sound deadner

first time using deadner but it was easy to use and it made a noticeable difference in the sound I would recommend

Thick

it thick and sticky and works good but I recommend you get a roller and clean the area you are applying to

Reduce Distortion

These are great. Installed them on my door panels behind the speakers. They help to greatly reduce any resonance and vibrations caused my road noise and sound waves. Helps speakers sound better and increase sound quality they can produce.

A++

Don't go to "Worst Buy" and pay way too much for the same thing. NVX is a solid product and does the job very well for the money.

Great stuff

This stuff is great! I got it free with my Skar speakers and it worked just like they say. I can crank it up and get almost no rattles where before I had all kinds of rattles. It's also very easy to put on and trim.

Quiet the doors

Worked perfectly to silence door rattle and even got rid of some road noise.

Serving It's Purpose

This sound deadner came with some jbl p660c speaker and i had them installed when speakers were. These are installed inside front door on the inside of door skin and i have no rattles on the door skin. I guess it's doing it's job. No complaints about it.

Great sound dampener at agreat price .

I bought this from sonic to mount my NVX VSP65 speakers In the front and rear of my car and let me tell you there is not even a hint of vibration even when cranked ! A must have for speaker installation . Another fantastic product from Sonic and NVX with fast professional service !! Two thumbs up .

Shop around!

For the price, there are better sound dampening products available.

Good sound deadening material

This stuff is pretty good at keeping the sound in and other noises out. very thick, no smell. Great product, easy to cut.

good stuff

I used this stuff on the half doors of my ext. cab to help in prove sound and it works. its good stuff but for what it is its over priced in my opinion but worth the cast.

Quality stuff

This stuff is very easy to use, just make sure the surface area is clean first, preferably with a mild grease detergent like dish washing liquid. The sheets are definitely thick and can become quite sticky, so plan ahead properly. Best to do it on a hot day where the panels are already nice and hot. Can't say if it made a difference as I changed the entire stereo and deadened the car at the same time.

this stuff was truly a lifesaver

I had no idea I needed this until I ordered it. I used it for waterproofing a custom made compartment so that I can get an amp in the dash of a corvette. can't recommend this stuff enough.

great product...

This stuff is pretty good at keeping the sound in and other noises out. no smell. Great product.

NVX SDK2

VERY EASY TO USE GREAT PRODUCT HEAVY DUTY YOU CAN SHAPE IT IN WHAT EVER YOU WHANT AROUNT THE SPEAKERS

serieux

je ne connaissais pas.
je suis étonne de ce produit.
très bien.mais difficile a l' utiliser.
je le recommande.

Good value

For what you pay this is a good value, it dampens the vibration caused from the aftermarket speakers, and also reduces road noise depending on locations.

Vibration mat

This mat works great on my doors and it is a great value.

By Tom on February 11, 2018 Verified purchase

Awesome deal!

This is my first time using sound deadning and I can tell you that the installation was really easy and the diffrence was greatly noticeable in the sound level. I do not get any rattling what so ever. The product feels thick and of good quality. I would definitely recommend this to anyone trying to improve their quality of sound in their system. I can also hear the diffrence in road noise, it has been greatly reduced, if I had to judge, maybe about 75 to 90 % in noise reduction. This product is amazing!

Good value

Sound deadening works like it should came free so cant complain sticks well equal to dynamat

By Anonymous on April 25, 2019 Verified purchase

Great value

Nvx deadner was excellent on my door speakers' good quality.

By Noe on April 28, 2020 Verified purchase

THE BEST

I've used other sound deadener products, I always felt they were way overpriced. These, on the other hand, offer the best value and not just that, it's actually a lot thicker than the other deadeners I've used in the past.

By Anonymous on March 24, 2019 Verified purchase

good deadner

it dont vut like someothers i have used suchas stinger. it seems to be thicker. it was very easy to roll out bubbles. im going to order some more

By casey on February 28, 2016 Verified purchase

Small but useful

This size only works for 1 pair of speakers, but it works great. It stick without problems, and it was easy to install. Quality is great.

By Francisco on January 27, 2018 Verified purchase

Best value for sound deadener

I have bought several packs of this sound deadener after trying several other brands, I have had the absolute best luck with NVX. Great product and value.

By Savion on April 4, 2017 Verified purchase

nvx

this is a good product if you receive it in time to install with other products at the same time works well

good product

I have NVX insulation around my front and rear speakers and I would definitely recommend it to a friend. The insulation is pretty thick so be prepared to make holes or cut as needed for proper contact to mounting surfaces. Its pretty solid and sticks really well, and as far as I can tell it helps with sound but I would have to cover the whole car to really compare it with other sound insulation products. I would buy this product again

By Nick on November 24, 2016 Verified purchase

NVX SDSK21 - 90mil 2.3mm THICK

Items arrived quickly and as described. Great price, great product.
To anyone who has never used this product before, like myself, don't remove the paper from the adhesive until you get the product inside the door then remove the paper backing from the adhesive.

By Anonymous on October 19, 2019 Verified purchase

Good Stuff

I received this item free with my speaker purchase. I will be buying more as the quality is very good. I used it like the instructions said and it was super easy to install!

By Anonymous on September 3, 2019 Verified purchase

Good product

Will do what it says, good product. Glue sticks to surface very well.

Nice material

Got this material when i bought my nvx 6x9 speakers installed in my door panels and have helped get rid of unnecessary rattling

By JeVaughn on January 2, 2016 Verified purchase

Easy to apply

Received this pack as a add on to a speaker purchase, it applied very easy, didn’t cut up my hand unlike other brands. Seems to be working great to stop vibrations.

By CW on November 6, 2020 Verified purchase

Good stuff.

I got these discounted with some speakers I got. Never actually installed them but the pads feel very high quality. super dense.

By Nathanael on April 22, 2020 Verified purchase

NVX SDSK2 - 90mil 2.3mm THICK

Very pleased with my purchase.very good quality & prompt shipment. Always a good experience! Greatly improved my sound quality and quietness in & outside the vehicle.

Nice dampening material

This is the thickest and easiest stuff to use. Nvx is the bomb.

Great Value!

Good product! Used others , but the qauliy is great for the price.

Great product

This material is very good.It sticks great and really makes a difference.

By Rafeeq on January 3, 2018 Verified purchase

great value

Handles well on hi volume.although they were longer than my stock front door speajers i had to add longer screws and reinvent a little bit.the size 6.5'' was ok but the magnet and material was abit long.But i made them fit in there. So overall.much clear voice and louder with a lil kick of bass.great buy

Good stuff

This is some good material.
Relatively easy to apply and it does it's job without weighing a ton.

By Justin on October 6, 2015 Verified purchase

best sound deadener on market!!!

this stuff is the best sound deadener on the market! I have used everything from the cheap stuff to the high end stuff and I gotta say this is my favorite. its thicker then most, sticks great, and most of all works great.
and of course as always shipping was fast ,payment was secure and products are great prices. sonic electronix rules!

By Anonymous on September 23, 2018 Verified purchase

the best value with anything nvx

The sound dampening is very thick and sticky installed it on a 28 degree day and just heated it with the car heater it became very flexible sticks great the 2.3mm is equal to about 90mils witch is much thicker than most brands out there.

By christian on March 23, 2016 Verified purchase

NVX SDSK2 - 90mil 2.3mm THICK

easy to install product, was a nice enhancement to the new component set I installed!!

By Anonymous on November 12, 2019 Verified purchase

sound improvement

this product helps mounting and sound control/ recommend for speakers mounted to metal in a vehicle.

Good quality

Got this for free as part of a purchase I made from Sonic. I bought a large sound deadener kit for my car. I came up just a hair short on deadener and then I remembered I had this. It was just enough to finish the job. Also this nvx deadener was much thicker and better quality then the other stuff I had used.

By Anonymous on February 21, 2019 Verified purchase

Works great

Great sound reduction and installed easily. Will buy again if I need it

Good item

This is a good product to buy a lot of people compare it to Kickers but to me it's much better in the price is much better also and is easy to install I had a fun time installing it myself

By Tevin on April 17, 2018 Verified purchase

NVX SDSK2 - 90mil 2.3mm THICK

GOOD product for the money cheaper than the other brand

By Vonsalee on December 6, 2020 Verified purchase

Very Easy and It Works!!!

Easy to cut and is very thick. Does it’s job with ease. I use this on every speaker I put in a vehicle. Price is right and recommend to everyone.

By Wally on February 1, 2020 Verified purchase

Great option for a bundled speaker set

I would recommend this if your only doing the door speakers. Easy to cut and apply with plenty left over. I would recommend a bulk pack of your going to do more than just speakers. One sheet in a bulk pack would have worked for all for doors.

By Matt on January 10, 2020 Verified purchase

Excellent sound deadening

I got 2 square feet for free with a set of speakers, just 2 square feet in the rear pillars of my reg cab chevy helped get rid of my rattles greatly. The trucks no crazy bass machine, just a single 12” solobaric but in that small of a truck its enough to rattle your teeth and every panel in the truck lol. This stuff really helped get rid of panel rattle

By Brian on December 28, 2019 Verified purchase

Good Product

This improved the overall output of my 4X10 speakers
would very much recommend .

By Wade on February 24, 2018 Verified purchase

Perfect

This stuff really made a noticeable difference in sound quality definitely recommend buying!

By Joe on April 24, 2016 Verified purchase

Good deal

I got for well under retail with a promotion when purchased speakers. I have used many different deadeners and this was very comparable to most others. Nothing to fancy came with enough to do what I needed.

By Frank on October 2, 2015 Verified purchase

Does the job

Kinda expensive but works. Very easy to work with. I would buy it again.

By Chad on May 14, 2020 Verified purchase

Love this stuff

Seriously improved the sound of my speakers. And no issue cutting to size needed.

By Angie on March 30, 2020 Verified purchase

Good stuff

Really help with the vibrations and keeping the sound in when the musics loud

By Anonymous on November 28, 2019 Verified purchase

good buy

Works good inside my doors, sounds a lot quieter, be sure to get a roller to help apply them

Bundle deal

It was free with purchase of some mb quart 6 1/2 coaxial speakers. Great product easy to use. Used it to fill low spots on the floor of my Nissan 720.

By Chad on September 23, 2017 Verified purchase

Good stuff

Easy to use not messy and not too thick for a tight space. Easy to do when the panel is off and no worries after. Free with my speakers too. Thanks Sonic

By Charles on August 11, 2017 Verified purchase

works well

I haven't used this type of material for a while so nothing else to really compare, but it seems to have worked well. 90mil makes this product one of the thicker ones on the market, and considering the price, I believe this is a very good product. It did calm the resonance of the doors quite well. It doesn't make the car quieter if it is used alone, but it does improve the sound quality of the speaker. It goes on to the metal and plastic surface pretty well. Hopefully it stays there for a long time.

By AH on April 7, 2017 Verified purchase

Great for Removing Vibrations for Better Sound Quality

This sound dampening material really does the trick. It removed the vibration from my door speakers and made the sound more crisp and clear. The only downside is trying to apply it around speakers, has to be cut and molded properly for a good fit and better sound, a little tricky, but still doable.

By Ryan on March 26, 2017 Verified purchase

Just get some

I can't tell you how this product compares to others because I've never used a sound deadener. But even just applying the speaker kit made a big difference. I tested the sound after doing one side to make sure nothing was rubbing because it was already a tight fit. The difference in volume was at least 3db from one side to the other with way less rattling. I will be doing complete treatments from now on. Thanks, SE for providing these for free with my purchase.

By Josh on May 3, 2020 Verified purchase

Deadzone

Very good product thicker than other brands....speaker kit great for luxury cars/SUV with electronics in the door and there is limited space for deadening.

By Gerard on March 15, 2020 Verified purchase

a good product

Easy to use. And work really great,good price. Overall a good product.

Excellent

NVX is the real deal , just as good as the more expensive dynamat , highly recomend .

By Chris on July 19, 2017 Verified purchase

Works well

Bought 2 packs to install in my 4 doors with my speaker upgrade. It does stop a decent amount of rattle that was present in my door panels. I had to split one pack for two doors. Got a decent amount of coverage but I would suggest buying at least one pack per door for complete coverage.

Quality sound deadener

Great product, got it for free with my speaker purchase. Sonic is always hookin it up

good bass

Very good bass response. Great power handling capability, easy install.

works as it should

thick sound deadener. works great for speaker installation but would recommend 2 sheets for speaker to really get a the benefit of it.

By Wayne on April 25, 2020 Verified purchase

NVX SDSK2 - 90mil 2.3mm THICK

This product works great! It's easy to put on and it is just as good as the more pricier sound deadening material I've used in the past.

By Anonymous on May 11, 2018 Verified purchase

Good value

Works really well and at a fair price. I recomend this to anyone needing sound deadening.

By Randy on February 1, 2017 Verified purchase

Great product

I used this around all four of my door speakers and was amazed at how well it stopped the rattles and vibration!

By Justin on December 11, 2015 Verified purchase

Great value

I would recommend these to anyone.
They are exactly what they are and you can never go wrong with nvx products.

Easy to install at the same time as some new door speakers, they do exactly what they're supposed to do.

Very pleased with everything I've bought from Sonic Electronix! They have been the lowest on every single item compared to any other
prices.

By chris on June 21, 2020 Verified purchase

Standard product

Does what it's supposed to. Pretty straight forward. Works good.

By Brian on February 22, 2018 Verified purchase

less doorskin ring.

Put these behind the speakers on the door skin and it significantly reduced the resonant frequencies in the vocal range, which before treatment made the speakers have a bit of reverb effect during speaking vocal range.
Much better. Doesn't sound like I'm in a sports arena anymore.

By Dylan on November 22, 2022 Verified purchase

Seems like it's helping.

Got this free with new speakers, so opted to use it during the install.

With the factory speakers, when cranking up the volume, I could hear the door outer door panel resonate when outside the car. After installing the new speakers and this Deadener, while I got my music cranked, and it seems like it's louder than I was playing the old factory speakers, I no longer hear the resonance of the outer door skin when outside the car.

So, it seems to be doing its job.

However, time will tell if it stays in place or falls off. Or worse melts and creates a mess.

By Brandon on April 4, 2021 Verified purchase

NVX sound deadening works like magic!!

At first I was very sceptical because I've always used a different brand that cost twice as much. Thinking that it cost more because it's better had been my biggest mistake. When it comes to this part of any audio install, always always take the extra time to eliminate any rattles and vibrations. When you're spending money on top of the line audio electronics always compliment your install with NVX sound enhancing/deadening products. I promise you'll be amazed at the sound quality difference.

By David on April 9, 2023 Verified purchase

Good sound dampening

I bought this kit when I purchased the NVX VSP525KIT, and I am very happy with them. Works just as expected, and the quality is great.

By Cameron on December 16, 2016 Verified purchase

Awesome stuff

Best sound deadner I've ever used!

By Matt on December 11, 2023 Verified purchase

Good stuff

I have used this throughout my car and it is just as good as dyno mat brand name.

By Ken on March 8, 2024 Verified purchase

Great product. Quality.

By Steven on June 8, 2024 Verified purchase

great product helped quiet my rattling trunk only thing I would change is the color would of been better in black great product tho

By Alex on May 27, 2024 Verified purchase

Easy to use

No disgusting smell and very easy to use.

By Victor on August 20, 2025 Verified purchase

Nvx sound deadener

This 2 pack of 10"x10" sound deadener is perfect for tight spaces. It helps with vibration and allows you to hear the music better without rattling noise. Definitely recommend this kit

By Jordan on October 26, 2025 Verified purchase

Worked great for the back wall of my truck

By John on October 19, 2025 Verified purchase

I'm pretty excited to install this.

By Brett on October 8, 2025 Verified purchase