Customer Ratings & Reviews

best price online

i bought these when they first came out for 499.00 from a local dealer. wish i had found them here first.
I am running them with a punch 300 which is rated at 100x2. it is a great set up. This is all i am running for mids and hi's. Gain is only 1/4 of the way up and the sound is absolutely amazing. Can listen to them all day at full volume. matches up well with my 1 10" cvx which is powered by a t500bdcp.

only complaint is that it came without any directions. the crossovers were different than the ones i had owned previously with my t2's so i was a little confused at first.

overall this is probably the best deal for the price for high end type mids/hi's. cant go wrong with this purchase. they are going into my next install as well.

T3 Fosgate

very good set will definitely buy again highly recommend you will not regret you did.

Loud, crisp and clear.

Title says it all, best sound quality speaker I've heard.
Two pairs running off a Rockford 600-4, and it super loud!
Design of speaker is a plus also, I've been commented about how far it's been heard without my sub on (blown) and it had the ability to drown out others system off the speakers alone.
Impressive prices from sonic as well better deal then I could get locally, just hope they continue to sell t3s continually!!

Be careful

I bought these a couple weeks ago and am just now installing them because they are too deep for my acura tl. I had to pay another 200 for some custom kick panels that u can install your speakers into. I'm sure later today when I install them along with my Rockford t4-800 amp and my 2 L7 12's with the Rockford t-1500 I will be in dreamland but just wanted to let people know there may be additional expense that comes along with these.

Overpriced, mediocre performance

Average set of components overall. Way over priced and the tweeters are way to harsh.

However, the build quality is superb and the packaging these came in was fantastic!! I have never received so many installation accessories and tweeter mounting options than I did with this set. The woofers provide an excellent low-mid range, but the tweeters leave much to desired. The crossovers also lack many options which are normally found above the $500 dollar price range, but they look damn fancy!

Based off of the price I would have to recommend customers away from this product, but if you can find a set for $300-400 they're worth it. After I returned these I went with the ID XS-65s and have been much happier.

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.

unreal SQ with a serious punch

I bought these as a step up from my RF T2's. I have two pairs in my front doors and they are beyond ravishing. These speakers will make your music come alive in ways you cant even imagine yet. I have heard the utopias and the legatias. these speakers for 1/2-1/4 of the price of the focal or hybrid audios are right up close in the sound quality. the tweeters are bright and vibrant (although putting the trim rings on requires and ungodly sense of patience) and the woofers are insanely loud and punch with authority comparing to some 8"-10" Mid range drivers. I Highly recommend these to any serious audiophile. you WILL NOT regret this purchase

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

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.

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

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

Nothing but pure power!

These speakers sound amazing. Nothing more or less to say. Paired them with the Rockford Fosgate T1 power 6x9s and a Rockford Fosgate Power T600-4. My Kenwood excelon deck just puts the icing on the cake. Such great sound and power. Very accurate tones.

By Adrian on July 15, 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

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

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