Customer Ratings & Reviews

OMG

I have 2 sets of these in my 06 saturn ion 2. These things rock so hard i love them. I just put them under some real power by a hifonics glx60.4, and i was happy before but now i am ecstatic. these speakers are awesome, a little bulky but awesome.

Good system

This is great and works as it should, good price and fast shipping.

WOW

These things sound absolutely incredible. Pure clean crisp fosgate quality. I have 4 running off a pbr 300.4 witch is perfect 75 watts rms and these things are stupid loud and never seem to struggle with all the that power. Entirely recommended.

loud!

These speakers are great, good sound, good highs and fit perfect in the doors of my Silverado - would recommend these to anyone.

not sure if they are good or not

They sounded awesome until the recommended wattage blew them up. i dont think they handle what they say. i had the amp gain on 2 and that would be 2 out 11

Fosgate Power 6.75

bought these for my s10 doors. and they sounded so good! i have had the cheap brand, the bang for your buck brands, and used to love kickers. but these have changed my whole view of brands. i could turn my radio up, all the way to 42 and no distortion. thats with no amp, just head unit power. i just put these in my silverado doors, and still super impressive over the stock system. i can turn the stock head unit all the way up and no distortion. lol

i do wish it came with speaker wire. all the other companies do. and fosgate being one of the highest cost speaker, i think its only fair it come with wire.

Great price and fast shipping

I've had the sub for a few months now and performs with such intensity it makes my friends want to get the same model. The price is just too good for the items value.

Great bass response

Really great bass response. Tweeters sound nice and smooth, not too harsh. They get real loud without having to drive them very hard. I wouldn't rate them among the best sounding speakers I have ever heard, but from a price vs performance standpoint, they are tough to beat.

Great product for the money

Have my set running in the doors of my '98 Cirrus. Now that they are amped up, they are loud and clean. Some of the best speakers I've heard in person, well worth the money.

How in the word did i get this in my miata?

They are loud and clear. i was going to run a sub with these but after hearing them i don't want to.

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

Great speakers

Pros: Has great lows and strong highs once tuned properly (slightly too harsh without any tuning)

Cons: The mounting bracket that came with it did not fit my 6 3/4" mounts on my Dodge. Was a bit of problem but worked around it by just drilling new holes.

Overall: I have the speakers running at recommended wattage and have had no issues, been using them for a little over 6 months now.

crystal clear sound

these speakers sound great at any level. My 75 watt rms amp really brings them to life.

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.

amazing

Bought for my truck, they rock hard
big improvement great speakers arrived day after I ordered them

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

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

Awesome speakers

Rockford Fosgate power series are some of the best sounding speakers for the money. Can’t go wrong with them.

By Heath on February 18, 2025 Verified purchase

Great for rear fill

These have really exceeded my expectations for the price point. These coaxial really came alive once I hooked them up to Rockford T400-4. Great job Rockford and Sonic Electronix!

By Jarrod on December 2, 2024 Verified purchase

great sound

perfect fit great sound

By Brad on May 6, 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