Customer Ratings & Reviews

Everybit as good as the more well known products

This came free with a bundled purchase,.. and I also purchased some Rattletrap Extreme as this wasn't enough for the car. I was expecting this to be mostly unusable due to the Name.

I was wrong.. it was every bit as good in thickness and adhesion as the more expensive brand I had bought. So if you can get this cheaper than other Sound material,.. go for it.

NVX SDVK4

Works great at a great price. I have it under my trunk lid and it keeps it from rattling too bad.

Good product, not the easiest

Used a few sqft of this material, along with the equivalent from Streetwires (PartsExpress) and a ton of Peal 'n Seal (Lowe's) for the rest.

I would say that Peal 'n Seal was the easiest to apply, but also the thinnest (an cheapest). So if you are doing some serious job you may want to double or triple the layers.

The NVX material was the thicker of the three I used, and once it's glued it stays soft which is very good. But beware, you will never get it off again. The only thing I would reproach is that the aluminum is quite thick, which makes it hard sometimes to comply with shapes. But it is good to fill in big gaps or openings and add some rigidity.

My preferred material is the Streetwire stuff, which is a bit cheaper. It was thick enough and compliant enough to make it really easy to install and it sticks like crazy while being forgivable if you make a mistake.

Have fun!!!

awesome

simply amazing before i installed it i could not hear a clean bass at all by trunk was rattling so much but now my trunk is solid and i'm enjoying the bass it's cheap and awesome NVX for the win

NVX better than the Rest

Great price, great quality. Plus delievery came fast. Will buy again for rear door.

NVX SDVK4

I USED THIS PRODUCT TO INSULATE THE SHEETMENT AT THE KICKPANELS AND THE FLOOR AREA BEHIND MY REAR SEAT IN MY1972 VW SUPER BEETLE. THIS PRODUCT WORKED OUT GREAT FOR ME, NO VIBRATION, REALLY QUIETED THE ROAD NOISE ALSO. OVERALL A GREAT PRODUCT.

Great product!

This is the first sound dampening material that I've used so far and I have to say that I am quite impressed with the product. I used it to reduce the vibrations generated from my sub at the back of my car. Since then, sound quality has improved considerably. For the price, I strongly recommend this product.

awesome

this is the best stuff for the best price now

works great

Less weight than other sound proofing I have used, cuts easy and with a hair dryer it will mold to any contour .

Perfect kit foe speaker installs or a single door.

This deadener works wonders for vibration and outside noise. It is thicker than Dynamat and will eliminate that horrible resonance caused by lower frequency notes transferred through sheet metal and rattles in plastic. It also improves sound quality and SPL.

Didn't see a difference for my car.

I'm sure this may have different results for different cars. I simply bought this dampening kit to fix the rattle and keep in the sound. I'll give my list of pros and cons. I own a 2000 Honda Civic.
Pros: Installation is very easy. Simply peel and apply. It's recommended to have a roller to get in the cracks (which this kit does not come with). This kit does keep in sound. Outside the car you can barely hear the audio (in terms of actual music, not bass).
Cons: This con is pretty much based on the vehicle I have. The mat did not fix my rattling problem. I placed it everywhere possible in my trunk and I still had constant rattling. Really a disappointment when that's the main reason I bought the mat for.

Good stuff

This dampener does what it's supposed to do. Didn't get to use it how I wanted to, but that's nobody's fault but mine.

NVX sound dampener

This product is easy to work with. You just need to peel it off and apply. I suggest you use a rubber roller with it.

Excellent

Great stuff. And I mean GREAAT. Gets rid of unwanted flex and looks appealing. Can't beat the price either

bon produit

je ne connaissais pas mais pour le coup,il est formidable mais toujours le problème de facilite d' utilisation.

NVX SDVK4

The material looks and feels like a good quality product. It's heavy and got a thick aluminium backing. Additionally it's easy to work with and forms nicely to the contours of any surface.

I recommend this product.

Quiet Performance

If you are looking to improve the response of your speakers, look no further. This material helps dampen the area in which it is installed. I placed this material in the doors of my truck which improved the sound quality in the vehicle. I would never install any speakers without this material. Install, you'll be glad you did!

Great Stuff!!

I bought a small amount of this stuff wondering how well it would work to just eliminate the rattle in my trunk lid. I drive an E30 so the trunk lid is really light and rattled a lot.

Once this stuff was on, about 90% of the rattle was gone and this was just enough to put on the underside of my trunk lid. My bass inside the cabin also seems to sound a lot more clearer too. This won me over for sure.

Can't go wrong with some NVX!

I installed it with a small floor seam roller I picked up at Sherwin Williams and a hair dryer to heat up the material a little bit to make it more malleable to fit the curves of the bracing. Super easy to install. Took me all of maybe half an hour. Just make sure to clean off your surface before installing.

NVX SDVK4

Good product at half the price of other brands.Will be ordering more.

What is This Stuff?

When I ordered this stuff I really did not know what it was or how to use it but it became very apparent. I cut this sheet larger than the hole for the speakers and pulled the adhesive off and stuck it over the hole then cut slices from the middle of the hole and folded it under so all edges were smooth. Installed speakers on top of this and there you have an airtight cushion that the speaker sets on top.

Better then dynamat

This product work better then dynamat and its way cheaper! I would reccomend this to everyone I used it in my door panels and there is no rattle what so ever!!! Thanks sonic!!!

Good value, thick material

Much better than some alternatives I've used on Ebay. Thick material dampens vibration and road noise quite well.

By andrew on July 13, 2015 Verified purchase

Great quality/Value!

Used it on the rear speaker panel. now, less vibration and good sound.

I would recommend it.

By Zjon on August 24, 2015 Verified purchase

Quality product

Easy to install,works great for the purpose. May want to buy larger amount of product if doing more than 2 doors!

Easy installation

Was buying home depot junk than got a roll of NVX. Lays down great and stays in place! Made a world of difference in my 500 hp trans am with exhaust you can hear a mile away. Could actually talk inside the car after laying it down on the rear of the floor and hatch area. Have bought more since and will continue to!

By Richard on March 24, 2017 Verified purchase

Works very well.

This is the first time using sound deadening material. But i can tell you this is worth it.
Makes a plastic factory sub box more solid.
Great product.

worked perfect

very easy to use. careful tho. only 4 sq ft not the 4 cu ft i thought. misread and assumed. my mistake. covered trunklid and works like a charm

By Anonymous on March 5, 2019 Verified purchase

Good Stuff....

Much better than thinner sound dampening material on Amazon. Easy installing, works great!

By Anonymous on July 28, 2018 Verified purchase

NVX SDVK4 - 90mil 2.3mm THICK

Works great. It’s perfect for every application and completely eliminated the annoying rattle from the trunk.

Awesome stuff

Previously bought the NVX door kit and was highly impressed, its just as good as all the name brands . Purchased this to finish my build ..even have NVX amp and speaker wire kit , NVX hands down is the real deal .

By Chris on September 28, 2017 Verified purchase

Works Great!!

This is the 2nd time ive used NVX dynamat for my vehicle and it makes a difference everytime. Ive acually used on the exterior of my vehicle under the body panels of my cadillac fleetwood which has a bunch of chrome panels and it does the job! Would definitely recommend to stop rattling on your vehicle!

By Edward on September 6, 2017 Verified purchase

Looks good

Didn't get a chance to use it yet but seems pretty good

Great product

Great product at an outstanding price. Easy to install and definitely helps with the sound.

Easy and effective

Easy install for the trunk, Would need more for doors in the future

By Anonymous on June 26, 2019 Verified purchase

Great cables

If you are looking for a set of 4 channel wires these are the ones you are looking for.

By Ronny on January 23, 2017 Verified purchase

Best Price

This stuff works awesome and the price was perfect. I will definitely order again when I get the extra cash to line the rest of my trunk!

Solid

A nice solid piece of sound dampening. Works as needed and isn't hard to install even without the right tools.

By Justin on July 1, 2016 Verified purchase

Better than the others

Stuff is as thick if not more than a lot of other more expensive brands.. I have never heard of nvx but with this type of quality I kinda want to try their subs out now..

By Kelvin on March 13, 2016 Verified purchase

spectacular

I really like them they have good clean crisp sound an are the best door speakers I've had.

Great Sound Dampening Material

I used this to line the front doors of my car. It is very easy to cut with a utility knife and the adhesive is very tacky. I applied with the handle of a screwdriver which worked great. Applied around the speaker mount and inside of the door panel. Door skin is now very solid sounding and midbass also has a more solid sound. I will be purchasing a bulk pack in the future to apply to my entire vehicle.

Take note that there are other things that rattle than the metal before stating this product does not fix rattles. One, it could be that you did not apply to the area that is actually rattling. Second, be sure to wrap all wire, cables, and some mounting clips with fleece TESA tape, which is sold on this site.

By Anonymous on February 3, 2019 Verified purchase

Excellent product

Every bit as good as the big name sound deadeners without the big name cost. Entire car is covered with this product and its mercedes quiet.

By Tony on January 15, 2018 Verified purchase

Great product for the money

Great stuff really does a good job would recommend to anyone looking to get a quieter ride

By Michael on March 16, 2017 Verified purchase

Great for the price

Bought these for my 2011 F150. They were a massive upgrade from the stock garbage Ford put in there. I'm only running them off of the factory stereo, and they are loud and clear enough to make your ears hurt.

Super sticky, super sound proofed, super oh ya

The youtube video definitely helped me get the strategy to roll this stuff on correctly. Thank you to Allyn for all the videos. I have now mastered my DIY skills in car audio.

Great Deal!

I talked to a knowledgeable salesman who helped me find the right speakers to upgrade my stock speakers in my Mazda 3. They are Infinity 682.9cf speakers and they fit perfectly in the spot of the old ones just like he said they would-what a relieve not having to modify the old speaker housing. All in all it was a simple task and the sound is ten times better-yeah! Thanks Sonic!

NVX SDVK4 - 90mil 2.3mm THICK

used this to sound deaden my tailgate, could tell the difference this made when tapping on the metal!!

By Anonymous on November 12, 2019 Verified purchase

Randy In Lansing

great stuff. I have used stinger before this one as they really are a must have on 85% of the cars out here if you want good sound. I would say its a very fair price as i think there is only 1 other sound damper that is cheaper but it also is .02 mill smaller. so all and all it was a must have as my Infinity Kappa 60.11cs speakers sounded like crap until i put this in and now the are the best sounding speakers i have ever had

By Randy on January 8, 2017 Verified purchase

Toyota Tacoma

I put this on my Tacoma since the box of my speakers were hitting metal, once I installed this nothing but fire from the base then before when it was all metal hitting

Extremely pleased

To begin I will say that I'm not going to bore you with the technical aspect of these speakers. I have had these installed in my 1998 Ford Explorer XLT for several weeks, and have been very pleased with their performance. I listen to a wide variety of music (i.e. Metal, edm, rap, etc.), and they have handled them all very well. I have previously owned brands such as focal, boss, and pioneer. I have by far been the most pleased with these. Currently I am running these off the stock head unit (as I have failed to install my new kenwood stereo yet), with no amplifier. I have seen many reviews complaining about the external crossover (the large black box in the photos) being a hassle to arrange. I did not experience this issue. However, if you have these professionally installed then it should not be an issue. My advice is to Velcro it to the inside of your door frame, should you decide to do a self install, and just let it rest inside the speaker mount if yours is built in (as mine is). When I unboxed them after removing my door panel and factory speakers the original plug was a bit of a surprise. However, if you cut the plug off and strip the wires slightly, the wires install quite nicely into the crossover. All in all the speakers were easy to install, perform well, and fit nicely into both 6x8 and 5x7 mounts.

Bass-y replacement speakers.

These speakers were purchased to replace a front/back set of speakers in a 99 F-250 King Cab. The speakers are being driven by a JVC KD-R810 receiver.

http://www.sonicelectronix.com/item_21996_JVC-KD-R810.html

The truck is like most trucks, noisy and hard on sound quality. I find these speakers to be "very" bass-y. Being bass-y is both good and bad as it's hard to find a balance between sound enhancing bass and sound distorting bass; overriding the treble.

I find the highs to be clean but the equalizer has to be carefully set so the bass-y nature of the speakers doesn't overwhelm the treble as I have old man ears (I'm 59) and typically, old men lose the highs in their hearing so the highs have to be boosted via the equalizer to compensate for this natural hearing loss.

Overall, I find these to be pricey but with a sensitivity of 94db, a response range of 40Hz - 25,000Hz, an impedance of only 2 Ohms with an adjustable tweeter, I find these speakers to be well designed and very efficient so as to assure you'll get the most out typically underpowered, in-dash receivers like the one I have.

A word to the wise, these are "STIFF" speakers to they will take some time to break-in and become flexible or responsive to the signal you're going be feeding them. You need to give them a hundred hours or so of play time before they'll loosen up and come into their own. Also, I like how well they're designed to deal with the affects of door water that typically leaks into the doorway.

Hope the above helps.

great value

I got some free in a nvx amp purchase and it came in a box and was not creased or anything, looked great and was comparable to the q mat I had

By Kyle on March 27, 2016 Verified purchase

Good for the Highs

These speakers are pretty good although I'm not sure if its the amp or maybe I don't have it adjusted right but these speakers do what they are designed to do I hear sounds and instruments I could not hear with factories installed A+

wongwaikin

first i replaced the front speakers on the two doors with the infinity kappa 682.9cf and they sound very good ( I listen to hifi sound music 60 years ago when i was 20) i can tell a good sound. without long, i replied the rear two speakers

Good

These speakers sound great with an amp and the right HU. I would not recommend them for a factory stereo though. The highs are a little harsh, but they still sound good.

low price high performance

For the relative low price these things jam very good bass(FOR A 5/7)or speaker of this size,mids and highs are great as to be expected plus swiveling tweeter helps.II've had these at 100W rms for about four years now at high volume every day with no issues if they don't sound good to you it's your amp set-up or not tuned properly don't send 40htz to mid speakers.Use them for what they are designed to do and you will be happy happy happy!I would put these in same league as JLs and I love my 13W6' s it also adds function that they are 2ohms but don't putem on a head unit!
GET THESE paying more would be a waste of money you could put towards something else like proper wiring etc.

good speakers

Ordered 2 sets for my 2011 F150, front and back doors. First, hooked them up on stock head unit with no amp, and they definitely sounded much better than the stock junk speakers. Since then, I have them hooked up to an amp running about 85watt RMS to each, and they sound even better. Had them for over a year now and no complaints.

great upgrade

These speakers were a fantastic upgrade to my 2008 Taurus. Quality sound even though driven by the stock head. A door wiring bracket interferes with the front speakers but not enough to prevent installation.

great sound at an affordable price

installed 2 pair in my F250 with 7.3 Deisel.

sounds great Need to readjust EQ after break in. Finally have speakers louder than the engine.

Audiophile quality for entry level price.

So far the 6*8 coaxial speakers sound great. I purchased these to go along with my front 6*8 component set in my ford focus. These are a great addition. One noticeable problem is that the tweeter was loose on one of the speakers and the only way to tighten the screw is to remove the sicker voiding the warranty. This series of infinity kappa's have very limited low end anything 80hz and below is quiet. If you adjust the bass higher on an equalizer the mids become muddy. If you plan on adding these to your car for more bass don't! You'll definitely need a sub. The quality and power handling of these is quite good but they are hungry. Factory radio power is not enough to get true definition. I have my front components currently hooked up to a 45 watt amp they sound crystal clear up until distortion. My rear coaxial are being powered by the an aftermarket pioneer head unit and they just can't keep up. I recommend you purchase an amp with these speakers.

Clarion sound!

These Kappa series speakers are the most crisp yet agile, powerful yet smooth speakers. These are the hottest for the value and they look good!

good speaker for the money

hard to say since i don't have them hooked up to my amp right now. can't really hear mid range as compared to alpine type Rs. i haven't blown them yet so thats a good sign

Decent

The external thingy is annoying. Probably not a good option for doors.
I mounted them on the rear deck; no complaints otherwise.

infinity door speakers

These speakers are amazing and have great sound quality and clear percussions. Great deal for the price.

amazing!!

These speaker out lasted not one, but two pairs of jl c5 components and they're a lot cheaper, bass is better and not to jinxit, but haven't yeta blown a speaker and these speakersare easily handeling 80watts rms at about 13.6v from an older, yet still kickin jbl gto amp that was initially a $600 amp so u kno it's decent. These speakersare better than jls 2010 lineup of "highend" speakers, and betterthan alpines typer comps which i killedmore than one of likethe jls. Ignore any negative reviews, quit lookin and comparing cause u gotta buy these! Jbl and infinity are my new favorites. Used tobe alpine and jl and infinity proved theyare theexception to the rule that "u get what u pay for" since these are cheap, better sounding, longer lasting and just plain amazing!! Fits in my 2010 mazdaspeed 3!

Excellent speakers!

I admit I bought these from another retailer, but I wouldn't hesitate to buy from SE at all.
These speakers are great, and I love the off-axis tweeters. They really do help to bring up the soundstage if you only have speakers in the lower door panels and no dedicated tweeters up higher, as is the case in my Focus. The tweeters are a bit harsh though. I guess this is what some would call "bright" perhaps? They don't distort, they're just a bit "sharp". After a half hour of listening my ears would tire from the treble, and that's with the -3db attenuation on the tweeter. They have mellowed out over time a bit, but still a bit sharp.
The woofer looks awesome and is pretty stiff. It sounds worlds better than my previous OEM speakers and better than any of my peers' aftermarkets. They have a good bit of midbass, and are very smooth with a nice warm presence that seems to fill in the cracks of the music. I'm only driving them on 25 watts too, I'd love to see them with more power.
You may find it difficult to deal with the attached crossover. It's annoying, and just barely fit in my door while still clearing the window when rolled down. You might want to make sure you can fit it before you buy these.
Overall I'm very satisfied with these speakers, and I'm planning to buy the component set with silk tweeters for my Mazda 3. They're fantastic for the price.

WOW! FREAKING WOW!

Almost a year of owning these and they are STILL CRYSTAL CLEAR! Very very nice speaker set...

I hope this isn't the case.

These are some good sounding speakers, quality construction for the most part. I bought 4 for my 95 T-Bird, and although I am very pleased with the sound, I do believe I'm starting to hear a bad buzz in the front right. I haven't checked to see if it's blown or has some separation or something, but it's not sounding good. I don't play my music too incredibly loud, and the bass isn't too bad. So if this isn't something other than a damaged speaker, then i am very displeased with the quality of these speakers.

AMAZING!

These speakers are absolutely amazing! The fact that they are 2 ohm impedance should not make anyone hesitant to purchase! You get more out of your setup with a lower impedance, and by the time it travels through your factory wires you will have close to 4 ohms anyways. A must have for Ford owners since these fit!

Great Speakers

Installed these speakers in my 2004 F-150 FX4, powered by the Clarion CZ500 head unit and these speakers are great. Sound quaility clear and loud. I had a Memphis Audio system previously and these are crisper and cleaner. The tweeter adjustment is a great added bonus when you're tuning the front and rear sets. The bass is nice without adding any distortion to effect the range of sounds. The speakers needed very little adjustment to fit into the factory holes. Infinity definately lives up to it's name with these.

The best speakers ever

This speakers are fantastic, the quality of this speakers are incredible. The clarity of the sound is by far the best for this price range. Bass response is also impressive for the size of the speakers.
This infinity speakers are well worth the money and it will not disappoint at all.

Just perfect

Even with the OE Radio-cd changer combination excellent performance. No more need for an additional amplifier and sub woofer.

INFINITY KAPPA 682.9CF

Infinity Kappa speakers are great speakers, with a great price and great sound. they fit perfectly in my 92 mustang 5.0 convertible feature/summer/special edition. i am powering them with about 100/110 watts rms of kicker power and they have held up without a hiccup. great clarity and midrange. they are only 5x7/6x8 speakers so they down drop down too low in frequincey but with a sub to back them up they sound killer. i run infinity all around and they sound great. i would recomend these to anyone.

Good Value

Nice highs, little lacking in midbass. Good value choice if you're pairing with aftermarket subs.

amazing

these speakers sound great.. i have them in the doors of my ranger and all my mirrors shake..ive had like 4 people ask me if i have subs behind my seat, and i dont.. i have sonys in the back and im getting rid of them and buying two more of these to replace them very soon. they are great speakers and well worth your money. i dont even have an amp pushing them. my only complaint is that it was a little tricky hooking up the wires to the crossovers. but it was worth the extra 10 min. trying to get them in good and tight. and by the way, on certain rap song, the tweeters do screech some, but its not noticeable 99% of the time.

Excellent sound quality.

I'm using 2 pair of these with a bass link and it sounds great. The treble is nice and crisp with out being harsh like with metal and plastic tweeters. Would buy them again.

worth the money,great speakers

these speakers sound great plenty of high range and just enough Bass. they fit perfectly and with the adapters I was able to use the factory wires without cutting anything.

Audiophile quality

High quality, very nice sounding speakers, for a great price. I have owned these for about 8 months now, and these can handle everything I throw at them from metal, rap, top 40, techno, to "unplugged" acoustic tracks. Even at extremely loud volume levels, they never fold under pressure.

These are great speakers!

infinity kappa 682.9cf

This is a great speaker. My personal setup is two 6x8 infinities hooked up to a 440w amp, and two infinity 4 inch round dash speakers in a ranger. These speakers work great and are very crisp. They work great for country and classical music. I am personally going to put in a subwoofer to get the full body behind the music. If you are putting these in ranger, make sure to tighten down all of your panels and you should probably put sound deadening mat behind the speakers because there is alot of power with these speakers, they give a good punch.

Good pick

Great speakers, much better than stock f250 speakers. Would be better on a amp.

Excellent speaker

Fit perfectly in 2011 F150 F/R doors. Sound is 10x better than factory and compliments the subs nicely. I highly recommend them to anyone looking at them. I used them for mids/highs, so I cannot vouch for the bass in them though.

excellent product

excellent sounding speaker. very clear with good bass. handles wide range of music

Happy

I was not sure if adding these to the rear doors would make that much of a difference but once I powered them with a 4 channel amp these helped make my music feel like the band was performing in my truck! Great buy!

Good punch

These speakers fit snuggly in my Mazda 6 2006 hatchback. I hooked these up with a 500 watt 4-channel amp which in turn is connected through the speaker level inputs to the stock head unit. It must be said that the sound quality from the stock non-bose head unit is extremely poor.
The speakers are nevertheless very responsive, crisp and punchy and they stay that way at any volume. Also the ability to rotate the tweeter proved to be a very useful feature. I'm sure that with a proper head unit these speakers would really shine.

Infinity Kappa

Had these about 2 months and wasnt long before i ordered another pair for the back seats. Infinity has not let me down

good speakers

These speakers are clean and loud hooked up to a Kenwood KDC-HD548U. I have them installed in an '06 Ford Crown Vic and they are loud, but not very much bass even though I have XTC 5" x 7" Foam Speaker Baffles installed behind the speakers.

If you're not worried about bass because you have subs to add to the set up, then these speakers will do just fine for ya. I would recommend using an amp to power these speakers, especially if you're running 500W RMS or more in your subs!

One of the best!!

I ordered 4 of these and have them powered up by a infinity reference 475a amp in a tiny little regular cab truck. I also have it with 2 10 inch jl audio w3 subs. It sounds amazing. All my friends are jealous of my system. The speakers are very loud and clean. I highly recommend them.

Great Speakers

These speakers sound sweet in my truck, in both the front and back doors. Real authentic sound. If you like listening to your music loud you'll be happy. If you don't listen to your music loud you'll still be happy. I don't have an amp or sub hooked up, just running straight speakers.

good

good speakers for the price.

Great sound..... low price

I have a pair of Infinity Kappa 682.9cf in the rear of an '02 mustang and a pair of Infinity components(6830cs) in the front running off of a JL Audio 300/4 and they sound amazing. I would recommend these speakers to anyone who wants clean and brilliant highs. The only thing about these speakers that could be viewed as negative is they are not good with producing any bass, but I didn't get them for bass. I only wanted what they give me now, great sounding highs!

Great Speakers

I put these in the front doors of my car to replace the factory speakers, hooked them up to an amp putting about 60 watts to each and they sound terrific. Ive got alpine 6x9's in the rear deck, but i might just have to replace them now. Definitely a great deal.

Kick a**

Well it took me a few weeks to find everything for my system. I have these amazing speakers in my front doors and rear deck. I have them hooked up to the MB Quart DSC 450 which puts out every ounce of power i will need for them. I did however blow the one speaker but it was due in part to water getting in the door and freezing between the magnet and the woofer cage which will crack at a certain tone. Everyone absolutely loves them. They have amazing highs and are incredibly great speakers. I recommend them to everyone.

my car doesnt just slap, it slaps clearly!

I blew my alpine type-s's so i was in the market for better 5x7's that could handle more wattage but at the same time wouldn't break the bank... and i picked these and i am by far pleased and satisfied with my decision not just the speakers but also with the quality and clarity these speakers put out...

AMAZING

I have these in my crown vic. They are amplified and sound amazing, if you want clear highs and mid's get these, if you want more bass go for the alpine type r. kappas will sound amazing if you have a sub. only thing is you must secure the crossover box a bit bulky.

superior sound

I went back and forth between these speakers and the alpine type r. I have now heard both and these kappas are far superior.

Great speakers

I bought two pair of these speakers for my wife's Mustang. They fit great and sound amazing. I was surprised by the projection of the highs, and the clarity of the highs and mids. I've turned the HP filter off and they can handle 65 watts full range no problem, I tend to keep the HP on about 100hz though. I've got a Boston Acoustics GT-50 powering the speakers and sub (MTX thunderform) and it's the cleanest system I've ever put together(well until I got done with my Accord that is). I highly recommend these Infinity speakers, and might replace the Polks in my truck with them.

killer sound system.

I've added these speakers to my new truck with my own sub. and amps. I also bought a pioneer 9500 stereo and i'm very pleased w/my new equipment.

Definitley A great buy

Add a Kappa 4 amp to it and you'll be heard blocks. My experience with Infinity, JBL, Harndon Karman Bose a like.

Dial them down on the high end....

I purchased 4 of these for the 4 positions in my F150 std cab. I found the resulting image very muddled, and WAY too bright.

With some tuning however, the results are now very good.

The short version of my "formula" is to keep the door-mounted speakers as full range, with the tweeters set to the lower output setting on the units. The rear speakers are being used as subwoofers for the moment, crossed over at 80 hz, which I can easily set up by the Pioneer head unit I have.

The muddled imaging is Ford's problem due to speaker placement, but was underscored by the much increased presence and brightness of the Kappas. I could simply clearly hear the placement distortion issues I'd always had.

The brightness is easily controlled - I think again it's a function of what vehicle these will go into. If this was a large SUV with a much bigger internal volume, and speakers mounted low on the doors, the extra tweeter output would be welcome.

You can dial down what you have to fit, but you can't dial up what's not there. No points deduction for Infinity - this only means one can arrive at crisp clean highs and mids in about any vehicle, if one takes the effort to tune the results.

These don't have a profound low end, but that is again at least partly a Ford thing. The door and rear mounts have cutouts right by them, and also scattered near them, so you can't really get much bass from any speaker. It's like a free-air mount; the back waves cancel the front to some degree as they aren't seperated, so much of the bass is cancelled.

That said, it's ok, especially with the rears at least trying to help out.

Once they get back in stock (and one day they wil...) I will add a JL Audio CP108LG-W3v3 (8" sub-in-a-box), and a RF monoblock amp for real

Great Speaker

Great speaker, awesome sound and easy installation. Just pay attention where you mount the crossover module because I mounted it in the wrong place and my window damaged it.

Cristal Clear

Paired these with a Pioneer GM-D9500F and an MTX Audio Thunderform FZX3500BK12-T45 and an older Kenwood head unit and i must say it sounds better that i planned. The reason i did this project is a friend had just purchaced a 2011 Mustang GT with the 1000 watt shaker system w/ 2x 10 sub in the trunk, it reall put my stock system to shame and made songs i wasn't that fond of sound great. Now he tells me that my new system sounds better then his!

Good Product

Sound is crystal clear. Really good highs.

Exceeds my expectations

I bought this pair of Kappas along with a set of JBL Power Series 5x7's for my '09 Mustang. The Kappas were installed in the front doors and the JBL's were put in the back deck. I did not want to throw a sub in my car because the trunk space is more valuable to me at this time. Putting the JBL's in the back was a good compromise.

The Infinities are very accurate producing very tight mids, highs and even some decent lows. The lows are much better than my previous Infinity Reference set though they do not vibrate the seats as much as the JBL's do in back (I tested this by fading the sound between the front and rear to single out the two pairs).

Although this is not the ideal setup, it is a good low cost alternative to getting Infinities all of the way around with a four channel amp and a single channel amp + sub combo.

The head unit that I am powering these with is the JVC KD-AHD69. The 7 band EQ along with these Kappas brings out subtleties and nuances in the music I did not hear with my factory setup or even with my other system with the Infinity Reference speakers. I imagine that with an amp, I would be able to push them to even higher volumes without distortion but even with just the head unit, they sound fantastic. As always Infinity does not disappoint with producing very clean high frequencies.

I Love Infinity Products

This set of speakers is great. I threw these into my car along with some 5x7s and hooked them up to my jvc kd-hdr50 and they sounded so crisp. I love their ability to hit every frequency from the high to the base, before i put my subs in my friend asked me if i had any with the solid base at only 20 watts rms I would totally recommend this speaker

best speaker for the money.

Replaced the stock speakers on Ford Taurus (500) premium sound system and they sound great with the factory 330 watt amp. I now get full high ranges, decent mid-range, and bass is great. The sound is clear and undistorted with a dramatic sound improvement. Would recommend these to any 5 by 7 installation system and price point is very reasonable. Compare and listen to others and these sound the best for overall clarity of accurate sound reproduction.

Infinities

Awesome speakers!!!!!! I have 4 of them in a 00 grand marquis and they sound great!

Great Speaker

This is an excellent speaker! They sound great and I love the ability to attenuate the highs. Be carefull what you power them with though. These are 2 ohm units and CANNOT be powered in the "real" world using a factory or an aftermarket head unit. These are designed to be powered by a 2 ohm stable amp only! Infinity website says otherwise but they are NOT testing "real" world conditions.

Great Value!

I bought 4 of these speakers for my 2001 Ford Mustang Bullitt, and man what a difference. I hooked them up to an amp and they got even better. I would recommend this product.

Super Sounds

Very good clarity depth and range of these speakers. I have a pair of JL Audio that don't respond as well to low frequencies. Excellent Value for any installation. Can't go wrong these

Nice speakers

Bought these speakers along with an Infinity sub and all components for a complete new system. Amazing sound! Loud, clear, absolutely wonderful... especially when compared to the factory speakers I had before. I highly recommend these speakers to anyone.

Clean Sound

These speakers have great sound quality for the mid to high range and have high power handling. Another plus is that they run at a 2-ohm load so you can buy a smaller 4-channel amp and run each channel at a 2-ohm load utilizing the amps full power. I can turn up the radio and amp without any distortion. These are the second pair of Infinity Kappas I own and both are currently in use. I highly recommend these speakers if using a sub(s) for the lows and bass.

Speakers for Ford Truck

These were an EXCELLENT choice for my Ford Truck {or any ford for that matter} the tweeters kick up and the woofers hit the lows extremly well ...Can't say enough about them Sonic shipped right on time no hassels excellent company to deal with ...

Kick a**

They kick *ss. can't wait to come home to an amp. Sonic Electronix kicks *ss as well. Thanks for all the help I need 4 more for my Harley Davidson electra glide ultra classic.

Blake

These speakers are loud! I have them wired with a kicker 350.4 giving them 90 watts rms each and they destroy! Along with my 2 kicker cvr's they create a perfect sound system with incredible highs and mids followed by bass from my subs. Even along by themselves they produce great bass. I would recommend them to anyone who wants loud music.

Great speaker

Awesome, terrific sound quality for a 2 ohm speaker. With the lower resistance, you'll get more wattage than you would with a higher ohm speaker.

excellent sound quality

i highly recommend these speakers the sound imaging is excellent and the highs are clean and crisp i am powering these with 100 watts rms per speaker and i have the low pass set at 100hz the only way to get better sound would be to go with full components but that wasnt an option in my application. the speakers these replaced were boston pro series and they couldnt even hold a candle to the sound and performance of these speakers.

nice

Good speakers, not much better than my factory's but a good price for a pair of infinites. Running them with a jvc avx77 in a 2k Lincoln LS, plan to install an amplifier as well, nice highs and decent lows.

good sound

Had to get these becuase the tweeters came in too big on the components. Nice sound handles good power.

infinity

I have them on a Kicker 850.4, and they sound great. Don't take bass that well, but on HP they are the best. With a sub, it's the best, but after a year the speaker will break down. Most of the time, it's the tweeter. I get a set about every year and a half. The sound is clear as it can get. I had Kicker, Pioneer, Sony and this is the best and clearest speaker.

easy install

Took out all vibration noise

By Frank on February 15, 2026 Verified purchase