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

awsome!!!!

I put these in my 98 civic and hooked them up to a kenwood amp and wow crisp and clear and worth the money.

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.

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

Rounding out the sound

Recently replaced the speakers in the overhead sound bar of our Jeep Wrangler TJ. Keeping in mind this vehicle stays open to the outdoors most of the year we wanted to help out the sound quality characteristics as well as keep it visibly minimal. These speakers paired up great to the head unit and amp that we selected, the fact that there was no external crossover unit to mount also a plus. These Rockford Fosgates created a much fuller sound stage despite the open road noise. We are pleased with the finished product. Thanks to Sonic Electronix for offering a full line of product options as well as the knowledgable staff to answer our questions.

great value great sound

These speakers sound awesome!!! I listen to hard rock music and these speakers make it come alive. Installation was very easy, I just had to strip two wires and then mount the tweeter and speakers in the original openings.

Sounds great

Speakers were fairly to install (even though they were not a factory replacement for my chevy silverado) . I only had to make a few modifications

By Christopher on May 11, 2015 Verified purchase

Good sound for a low price

Thsee speakers sound wonderful, and are a big improvement over the Boston acoustics se55 that I had in the front door because of the component layout.

Great sound

Originally bought these for a single cab colorado but after acquiring a 97 suburban with factory speakers that quickly changed. Although installed in the front doors they can still be heard loud and clear in the 3rd row seats with all windows down at highway speeds. Another great product at a great price and super fast shipping from SE.

Great stuff

sounds great, awesome price, easy install, arrived on time, no defects :)

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.

Rockford Fosgate PRIME R1675-S

Loved my speakers. Have them in my truck. Would highly recommend the speakers, and the company. Very satisfied customer!!

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

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

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

Great value, great sound!

Bought these to replace an old pair of Polk audio coaxial speakers for my front stage. These speakers sound awesome for how inexpensive they are. The mids are clean, and the highs from the tweeters are crystal clear. Big improvement over the stock tweeters. These speakers don't really have much bass, but that's what subwoofers are for. Got these hooked up to an old Alpine 2 channel amp that runs at 50watts RMS each channel. Brings these to life!

By Aaronl on April 28, 2021 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

Great deal

Speakers work great. Fit truck great. Look good. Great price for apeaker. Really a good deal.

By ron on October 12, 2020 Verified purchase

They Sound Great!

Installed in a Nissan Altima along with NVX sound deadening material and I'm amazed at how good these are, especially for the price. The highs are clear but it was the bass that really caught me off guard. Highly recommend!

By Anonymous on September 9, 2019 Verified purchase

Great speakers for Wrangler

Installed these in the front of my 2007 Jeep Wrangler JK unlimited. Huge upgrade over the non-Infinity factory components.

Should note that these fit without any adapter plates, so that info here is not correct. The tweeters fit well with a bit of hot glue to hold them in.

Perfect setup for an inexpensive upgrade.

Rockford r1635 speakers

Nice upgrade for my promaster van. Made a big difference with new tweeters. Was relatively easy to install. I hot glued tweeters to pillar post trims, drilled new holes for the door speakers. I wired speakers with all original wiring. Packaging was good, delivery was very quick.

By Robert on August 7, 2020 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

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