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

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

Kick ass

Buy them. I have abused these speakers. Still jammin great 4 the price!!!

By kevin on June 18, 2017 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.

Great value & performance

These 6.5's ate so loud in my car that they hurt my ears and I'm constantly reducing my high bands on my eq! I highly recommend this product cause you might not never find such GREAT PERFORMANCE FOR SUCH A LOW VALUE PRICE!!!!!!

By Anonymous on March 25, 2019 Verified purchase

Always happy

I'm always very happy and satisfied with everything I've ordered in the past. Always great price/ value and fast free delivery. Thanks for your company and prices sonic

By Jason on May 12, 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

Clean

These 3 way 6.5s sound amazing in my wifes tahoe. They are being powered by her double din but after a coupleminutes if eq play these things came to life. Would deff.recommend tho budget buyers.

By Anonymous on April 30, 2019 Verified purchase

NVX SDBSK2 Premium Stealth Black

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

Surprisingly good speakers

Bought them to replace the rear speakers of my 94 integra and they sound great! I was actually skeptical about purchasing them, but they arrived quickly and look really good with the cover on. They sound great and im satisfied.

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

Great speaker

For the price is a good speaker and sound excellent on my car.

By Enrique on August 2, 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

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

Good product

Overall a Good product for the price! Nice design and color.

Wow!

Bought this to upgrade my stock ones and they sound amazing. Thank you! I highly recommend if budget is tight.

By Anonymous on October 29, 2019 Verified purchase

Great speaker at a great price

I bought these for my 96 F150 for the door speakers. They were a perfect fit and we're very easy to install. They have a great, clear crisp sound. Crunch has always made a great product, and these are no exception. Great price, great sound. Also Sonic Electronics have always been a very fair honest company to deal with. Highly recommend this site.

By Derrick D on October 5, 2017 Verified purchase

Very good for such a low price

This speaker isn’t the greatest by any means but if you’re looking for something on a budget or even just something with a decent wattage this is a great choice especially for barely over 20.00 per pair. This three way has two tweeters so keep in mind it won’t make a huge difference on the mids but with the right settings will still sound great. Great upgrade over any stock speakers and even competes with mid level quality speakers at a bargain price.

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

Crunch CS653

Works well replaced stock speakers in a 98 Dakota. I would recommend these speakers the price is right and they sound better then the stock speakers.

By Anonymous on June 11, 2018 Verified purchase

Great Value at a Great Price

It’s often said you get what you pay for. In this case your getting better than what you pay for. Great sound and quality at a great prices. I definitely recommend Crunch products for a person on a budget but wanting a quality sound and product.

By Tywon on May 18, 2020 Verified purchase

car speakers

Very fast free delivery and speakers are way better than stock... sound awesome and a GREAT Price!!!!

Excellent for the price

Excellent value low distortion and hold up well with my amp. I have the same speakers in both of my vehicles and so far so good and i listen to loud music always whether im driving or just have my car stereo on just hanging around in the yard. I'll probably put the same speakers in wife's car also.

By brian on October 8, 2023 Verified purchase

Great Value for Your Money

This product shipped very fast and arrived before scheduled time. On arrival, the packaging was immaculate and included everything for the install. The install was fast and easy. Performance of these speakers are really great. Sounds quality is great.

By Kemar on November 2, 2023 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

What a bargain!!!!

I upgraded my factory speakers and went with these, mid bass sounds soooo much better

By Charles on May 20, 2024 Verified purchase

Makes sense Works perfect

I put a square behind ea. door speaker and a square on the inside of each pod and it made a solid difference, especially for the pods. The music sounds better, no hint of an echo or slight vibration that I'd get before insulating with NVX SD. Pods/speaker boxes should really come insulated from the factory. Install some squares behind your speakers and you'll hear the difference.

By Ron on June 12, 2026 Verified purchase

Great speakers for a great price. Shipped quick.

By Joe on March 18, 2025 Verified purchase

Good for value

Very impressed with this speaker. Sounds is really good.

By Anthony on May 23, 2024 Verified purchase