Customer Ratings & Reviews

Great deal

Got this product free with the purchase of a pair of speakers it helps out a lot looks more professional and sounds cleaner definitely give it a try for your next project.

Don't go without it

This really helps with overall sound quality, especially mid-bass in my experience. NVX offers excellent quality at better prices are than other popular sound deadening brands.

By Anonymous on September 9, 2019 Verified purchase

Very Thick Dynamat

This product is very thick compared to cheap versions. Priced excellent. If you want to reduce any vibration or road sound, choose this!

By Adrian on June 21, 2020 Verified purchase

Very pleased

I am glad I went with this brand. Easy application and works great in keeping my Corolla quiet and audio clean.

NVX SDBSK2 Premium Stealth Black

Thick and heavy. I was suprised with the actual quality. For the price they’re great quality

Awesome roller!

I'm really happy that I bought this roller. I also have two other (smooth) rollers, but this one works much better. Its little "fingers" press the NVX sound mat really well and it allows it to be spread evenly over the entire surface including all these different curves and corners. The roller is very sturdy too. After 30 sq. ft. the roller started squeaking a little, but it still keeps working perfectly! I'm sure that the roller will help me to put all 60 sq ft of the sound mat and still will be fine. Great roller!! This item is highly recommended and even "a-tool-you-must-have!" for anyone who works with sound isolation of vehicles!

By L. the Morning Star on October 1, 2022 Verified purchase

Way better than version 1.

I am an installer and could not disagree more with the other review. I actually had version 1 and got it the first time I ordered a bulk pack with Sonic years ago. This version is a big improvement due to the teeth and the handle. The teeth make it way easier to get a great stick to the vehicle body. The older one was wooden handle and this one is plastic, but the plastic is rugged and it is singular piece so it is really sturdy. The older one that connected the handle to the roller part broke at the joint and this one reminds me of a sturdy broom I have from Home Depot. Worth every penny paid or free!

Good product

Sticky and did hook well to the cars body . Got it for free with my speakers purchase. Sonic electronix for life

NVX SDBSK2 Premium Stealth Black

For the price, I wish it came with a bit more of the material compared to other packages, but it definitely does what it's supposed to and will make a noticeable difference if you knock on the door/panel where it was placed vs where it wasn't.

By Anonymous on June 12, 2018 Verified purchase

NVX SDBSK2 Premium Stealth Black

Easy to use and reduced vibration, allowing clear sound coming from my door speakers.

Great value

I installed these on each rear door of my 2005 Silverado. Could really hear a difference in sound quality.

All plastic

This tool should be free with purchase. All plastic. It does feel strong and it does work but not worth the money.

By Donnie on June 8, 2021 Verified purchase

NVX SDBSK2 Premium Stealth Black

Great product, Sonic Electronix is great. I've ordered a few things from time to time and have had no problems. I get the item quickly. I ordered this and was so pleased. I ordered another set. Works great.

By Joshua on May 25, 2020 Verified purchase

Perfect for tight spots

I used this to install true 50 mil sound deadening in the doors and along the floor of my f150. I installed it with this and the more traditional roller. This is perfect for inside the doors where bracing and cutouts don’t allow you to get great pressure on the material, the textured nubs give you much more focused pressure and allow you to get to stick and leave a small bit for air to escape when using a heat gun and following back up with the smooth rubber roller.

It also takes down kind of like a disposable razor giving you better access in some cases.

I used a cheap sound deadener from an online retailers house brand, the butyl rubber was not very tack and this got it to stay no problems I forgot to follow with the heat gun inside the door skins and this still kept everything secure.

By Frank R. on July 7, 2023 Verified purchase

Great handy product easy does it .

Great product , easy and handy to use , the roller is well crafted and helps out a lot . Well recommend happy with my purchase . The only concern I had was that I ordered it during the week before checkout it said I would be receiving my purchase on sat it took more than a week to receive it . Other than the shipping miscue I will purchase from sonic electronix .

By Jose on June 28, 2023 Verified purchase

AMAZING! Game changer for sure.

I am really happy I got these. I didn't think they would work and thought they would be gimmicky given they were promoted as a recommended bundle, but man oh man. Rather than my sound going into my door (which ironically happens on ALLLLL speakers), now the sound goes out into my car.

What is crazy to me is that for all these years subwoofers in a box act like this in that the sound obviously doesn't go back into the box, but speakers in a car never behaved like this.

Now it's like all the sound the brand produces with the speakers actually is heard by my ears. I am seriously so impressed with these that I am leaving a review, and a long one at that.

I felt like these should be so well known for everyone and it is so dumb that the car manufacturers do not include these or build speakers in this manner. It's crazy.

By Anonymous on November 7, 2019 Verified purchase

Good deal

Bought a pair of kickers and they came for free, doubted them at first but it really does help in muffling the rattles from the speakers.

Awesome!

Made a huge difference when I installed these rings on my front doors speakers. It improved the mids with tight clean sound into the cabin. It wells design with excellent quality materials.

By Pedro on August 6, 2020 Verified purchase

NVX FRING65

Dense material, they work well and have a good quality feel.

By Chris on April 23, 2020 Verified purchase

Good compliment to sound dampening

Easy to modify, thick foam with good adhesive. Fits well over 6.5" speakers.

By Jeffrey on January 11, 2020 Verified purchase

Must for all door installs

This are essential for all door installs. Good adhesive and the most dense and supple foam you ever felt.

By Duane on July 1, 2020 Verified purchase

Great product!

Made a good seal against the door card. Inexpensive way to improve sound quality.

By aron on May 25, 2020 Verified purchase

Sound deadening

Makes the speakers sound great and looks good to plus doesn’t blind you.

By Christian on April 22, 2020 Verified purchase

NVX SDBSK2 Premium Stealth Black

Perfect fit an very fast shipping.Good list to choose from to fit my car.

GOOD QUALITY AND EASIER ON THE HANDS!!!!

I got this small pack to finish my daughter's 2020 Camry after I had already used the foil-backed version. It went on just as easily and stopped the license plate and gas gap door rattle. A big plus for me was it didn't cut my hands shreds as the foil did.

By Gerald on July 13, 2021 Verified purchase

Excelente producto

Me encanta, el producto es de excelente calidad y lo recomiendo.

NVX FRING65

Fewer rattles in the door panels. Worth it For what you pay.

By Andrew on April 22, 2020 Verified purchase

Good quality sound deadener.

Not enough to cover an entire door but enough to add enough mass to make a difference. Peel and stick.

By Joseph on February 2, 2020 Verified purchase

Works ok but handle is tiny must be made for tiny people. Plan on strapping on a bugger handle.

By steve on December 1, 2023 Verified purchase

Nvx sound mat

Added 6.5 jbl gto coaxial to my front doors very easy to use clean surface and stick very easy to cut any time you door speakers add nvx mat you definitely notice the difference in the sound of your speakers it's a must best money I spent if your upgrading your speakers might as well do it right

By Big pat on June 13, 2021 Verified purchase

Not too bad

I was worried it would be thin! However this stuff has a ton of cushion! Perfect for getting that tight seal. Haven’t heard any vibration yet

By Austin on August 31, 2020 Verified purchase

Bought to use on both nvx components & coaxials

I used these front and rear on an 03 4runner. In the front, there was a bar right behind where the speaker would be. I placed some deadening and then had to cut the middle section in half. The glue was very sticky and the product seemed to do its job. The small fee for a decent upgrade.

By Daniel on April 26, 2020 Verified purchase

Does the Job

Good price, fast shipping, works good. Greatly improved bass while also making the vehicle quieter.

By NICK on December 3, 2022 Verified purchase

Fits great

Super nice adhesive and pliable enough to fit around my Cerwin Vega v465c--Could require trimming if your door is really close to your speaker. Also check that the foam on the door doesn’t hit the window, mine cleared.

By Andrew on June 18, 2020 Verified purchase

Nvx fring65

The NVX FRING65 is great . The sound quality that you get after installing the nvx 65 . Is superb. If you are purchasing or have purchased aftermarket speakers. This will be a great to add on . And its a cool weekend project . I just ordered another pair for the rear deck speakers .

Seem promising

These came with speakers I ordered, so that said, I can't complain. I bought NVX baffles too, so since I used those, I didn't use these. Still, the foam seems like it'll hold up well.

I may use them in a future build and will hold on to them for when that time comes.

By Brandon on April 4, 2021 Verified purchase

What a difference!

I noticed a huge difference installing this in my 2007 Silverado (Classic). I didn’t think it would actually make any difference but I was totally wrong! The mid bass is so much more crisp and pronounced. It even eliminated some of vibrations I had.

By Mark on May 20, 2020 Verified purchase

Must have

It’s a must have if sound deadening your vehicle I have the smooth nvx roller and this one as well they both have there place in the sound deadening installation process I recommend you get both you won’t regret it

By Wesley on April 3, 2024 Verified purchase

Infiniti g37

I put these behind my they made them super loud I absolutely love it and I have Orion xtr 3 way and sound loud and clear

By Beatin down yo block on April 7, 2021 Verified purchase

Dope

Love the nvx it really give the speakers a different and better sound and it fits perfectly in the door speakers love it and the price for them you can’t beat it deal

NVX products

I use NVX for all of my cars and this foam kits looks cool and works great recommend.

By Pedro on July 4, 2023 Verified purchase

Good stuff

This looks super cool I have not installed them yet but I like the materials and quality.

By jimmyotoole on October 11, 2020 Verified purchase

Great product

I think these work great. But I rushed it and ended up buying another set to do correctly. Directs sound like it's supposed to.

By Robert on March 23, 2022 Verified purchase

Perfect fit

Perfect fit. Was not a fan of the closed baffles, so I cut the back off and added these. Sounds so much better.

By Anthony on March 4, 2024 Verified purchase

Best stuff on the market

For the price this is the best stuff by far out there A+++++

By serento on July 6, 2025 Verified purchase

Great

Much better then the smooth roll

By serento on March 29, 2025 Verified purchase

Free Free Free

Who does that anymore? Free product great service free shipping that’s why sonic’s electronics is growing and other companies are not.

By KELLY on February 27, 2025 Verified purchase

Works great! Flexible and thick!

Works great seals up all the gaps!

By erik on December 21, 2024 Verified purchase

Nice product

Love that I got it for discount with speaker purchase. Works like a champ!

By Craig on October 18, 2025 Verified purchase

Amazing quality

Absolutely loved the quality and pricing for this product. Will definitely be using in future applications.

By Ryley on March 4, 2025 Verified purchase

works great seems to be good quality foam

By Steven on June 8, 2024 Verified purchase

Really nice ... but

The product and the concept are fantastic. It could be improved simply by being a circle cut out vs an angled cut. I had to make sure that the angles didn't interfere with the speakers surface when mounting. Other than that I liked the product. You would think that would be an easy concept. Round speaker so a round cut out??

By Ron on February 21, 2026 Verified purchase

Perfect addition to tool box.

This little tool helps install sound deadener easier than the flat roller. I still use both depending on the application.

By Mr. A on February 4, 2026 Verified purchase

Wow! Sounds so good!

Never thought something this minor could make such a huge difference. These will take your install to the next level.

By Manuel on February 4, 2026 Verified purchase

Perfect

These fit my NVX VSP65KIT2 6.5 inch speakers perfectly. The adhesive feels very durable for both the foam ring and the backing. Both stuck to their respective surfaces very efficiently and it feels very durable.

By Armando on February 3, 2026 Verified purchase

great product

Great product no problems installing didn't really think I needed it but I went ahead and used it glad I did Sonic actually provided free with speaker purchase so that was an added benefit would buy again.

By Jonathan on January 31, 2026 Verified purchase

Great product!

Ordered these along with a new set of 6.5” door speakers. Initially noticed how well-made and durable the product was. Installing them is pretty straight forward and simple. And after listening to the new speakers, I feel that this product helps me get the best performance out of them.

By Jay on January 9, 2026 Verified purchase

2014 Kia Soul - Great sound & value

Installed in back doors of Kia Soul, pushing them with Kenwood Excelon X302-4 amp (50W RMS x 4), and an Excelon head unit. These speakers sound great!

By Matt on January 10, 2025 Verified purchase