Customer Ratings & Reviews

Great value for money!

From the braided to the thick true gauge OFC cable, this is a good amp kit, going to trust NVX after all this amazing kit.

Great Amp Kit

I have been buying and installing car audio for about 18 years and out of all those years I have to come across an amp kit like this. This is the best kit I have ever installed. The wire is true to gauge ofc. I installed it in my car without any problems. Very flexible easy to work with. If you want a good amp kit don't buy this one but if you want a great amp kit purchase this one.

Great cables top quailty

hard to bet silver tinned copper cables even the speaker wire it comes with is silver tinned

Super Product

Very nice product. The quality of the power and ground 4 gauge wire was great. Already had one end prepped with a terminal and the power wire has a protective sleeve for about 4 feet. The only complaint I have is that the plastic cover that goes over the fuse holder doesn't snap very tight, easy to knock off and expose the fuse. I put electrical tape down both sides to help hold it on.

Great Amp Kit

High quality amp kit . Everything u need and more to hook up a single amp. Great value also for what is included in kit.

Quality Kit

I bought this kit because it is high quality, uses true 4 gauge wire, and comes with 20ft. of power wire. It is working very well with my JAD1200.1 amp. I get about 0.5V of voltage drop at full power, 1 ohm impedance on test tones. I am very happy with the performance of this wire.

Great Product

This sound deadener is great the best I have ever used. It is very thick and sticks to anything. I used it on my rear speaker deck cover. I didn't know if it would stick do to the that the cover was made of fiberglass. It worked, stuck to the cover like glue. The only down side to the product is like any the black tar like substance if you get it on your hands or fingers have to use paint thinner to remove, other than that the product sticks to just about anything. The price is great too, dynamat for the same about cost about 3 times as much. The NVX is a much superior product than dynamat also not paying to fill chip foose back pocket.

I'm addicted to NVX!

I used this in my 2008 Town & Country too! I purchased this kit to power my NVX JAD900.5 and could not be more pleased! Good quality, thick, durable, flexible... the list goes on! This made my install so easy! I can find only one problem... I don't have enough vehicles to do installs!! I can't get enough of NVX! I would be happy installing NVX on a daily basis! Everything NVX is fun and easy to use!! Thanks guys... you ROCK!

Good price Great quality

pros: easy to maneuver, tons of cable, good price, true 4 gauge

cons: the inline fuse holder is a bit tricky to wire in, also don't provide an allen key to tighten it.

GREAT PRODUCT!!!!!

I bought this kit to go with my rockford fosgate amp, it gets the job done!!!!! Very happy with this purchase!!!!! I will be buying another one for my second car this spring!!!!!

Great RCA cords.

These cords are very nice design. Length was just right and connections are solid.

Good stuff

Good stuff. Ready to put on and deadens great gonna buy more

decent for the price

This RCA cable came with my 0 gauge wire kit, the power cable is good but the RCA cable is just ok. I didn't expect much of the RCA cable for the few more dollars, so its okay.

Nice product

I got this to go along with the XKIT44 so I could run 6 channels. The wire portion is nice. It has a nice look, flexibility, and is easy to route. The connecter part isn't the bast I have owned. They aren't gold plated and dont have that heavy feel like some RCAs, and they fit a little loose on the RCA inputs of my amp. I just pinched the ends of the jacks a little, and that made them fit onto my amp's input a bit tighter. Im not getting any kind of interference, dropped signal, or noise caused by the wires, so I would say they work perfectly. This will definitely get the job done and look nice.

GREAT PRODUCT

Cable is flexible easy to work with & route around. The connection cap Could have been a bit more sturdy or tuffer, its made out of light plastic. Overall its a great product, price is good & signal is great.

NVX RCA

Had cheap ones and decided to upgrade and they made the difference

Great Quality

very high quality rca at a great price ... would buy again

Great product

The kit is great true 4 gauge power and ground wire. The pre installed ring connectors makes it so much faster and easier to install. Handles the power of my two amps well no overheating or anything. Great product and price.

NVX is Good

I needed this so I could connect my sub. I already had the NVX 4 Channel XKIT44 and this set was the perfect complement to complete my sound system.

Great buy

First time buying NVX product, very good overall quality. The wire itself was very flexible and seemed to be true to the gauge listed. It had more than enough to hook up everything I needed. I actually had extra parts. Keep in mind, this particular kit does not include RCA's, I did not need them for my install as I already had some. The only thing I had an issue with was the top of the fuse holder for the fuse box seems to fit a little loosely once the fuse box was bolted in. It has not come off as of yet, but I've only had it installed for a few days. Overall, compared to some of the other big name brands, I can't see why you'd pay more for their product when this one is very high quality at a great price. Thanks Sonic!

Nice RCAs

Nice, easy to use and flexible. Got a deal on them too. No complaints

NVX

I will never buy another brand. NVX is the real deal and affordable also. I would recommend anyone to NVX and SONIC ELECTRONIX.

Great kit, great price

I got this wiring kit with a NVX promo. The price and quality could not be beat.

amazing

this is a very high end amp wiring kit. Best kit I've ever had a chance to use. Not even for the price just overall I doubt you'll be able to find a better kit.

Excellent product

This product is highly recommended and I agree is top quality. It includes everything you need, the wire gauge is true to the specifications.

Top of the line kit.

These are awesome kits and they are the best quality you can buy. Everything you need for an install and thye use true to spec ofc, power, ground and speaker wire. Easy to install and a must for high end amps.

good product / value

Note - This kit does Not include the RCA cables.
Quality was great
Includes 100 Amp Fuse
Wire was very flexible for 4 GA
Fast shipping
Would buy again

NVX power

I purchased a 4g NVX power cable. I would highly reccomend this to anyone looking for car audio wiring. The fuse and fuse holder look great and even with the power cable being so thick it's super flexible. I really like how the terminals came pre crimped also

Quality wires

I bought this kit based on the many positive reviews I had read as well as the manufacturer's specs - and I'm glad I did. This kit contains quality wires - true-to-size gauges with durable and flexible insulation. The power wire has the protective loom pre-installed at just about the right spot as well as a sturdy lug. The fuse holder works well with both ANL and mini-ANL fuses. The speaker wire is great and that little extra length is a bonus not found in many kits at this price point.

Perfect

The great reviews of this product are dead on accurate. This kit screams quality from true gauge ofc cables to super nice fuse blocks. This kit is on the same level as my knukoncepts kits which until now I thought were the best you could buy. Bottom line buy this kit and you will never regret it.

Surprisingly "great" kit

Because the “NVX” brand is relatively unknown to me (I am sure some have had more experience with the brand and their products) my expectations were low, however, for the price, this is a great kit. Wire is true-gauge, very flexible, high strand count OFC wire. If you’re looking for a 4ga single-amp kit, this is a great option… amazing bang for the buck value. If this is representative of the product NVX is putting out, the rest of their product line deserves a closer look…

Great Bundle

NVX is the best amp wiring kit I've ever used. Super high quality for the price. Blows away Street Wires and Kicker!

WOW

when i got these i was shocked by the weight of the wire! this wire is so nice and powers my system with ease!

Grat Amp wireing kit

It does what it was designed to do . Made with top of the line material and keeps any engine sound that you would get with an inferior product is non existent !! The quality is as good if not better then Alpine , Fosgate , Kicker , ect..... Kit provides plenty of wireing to complete the job . Not to mention the top notch service that Sonic provides . Fat shipping and professional assistance !! Will ONLY use Sonic for my future car audio needs .

Great Kit

As good or better than my Rockford fosgate wiring kit was. I especially like the heat shield for the wire that will be in the engine. The fuse and fuse holder seem well made also. Highly recommend this kit!

NVX

I will never buy another brand. NVX is the real deal and affordable also. I would recommend anyone to NVX and SONIC ELECTRONIX.

Great amp fit for the money.

This Amp kit is great I used exclusive NVX for my system this go round and I am VERY pleased with the quality to value ratio. My only complaint is that the AMP power wire could be a bit longer. now I think it is important to point out that I got this kit because the AMP Power wire is longer in this than most other kits 20ft compared to 17ft. But I think in a kit like this they should give you at least 25ft to cut depending on your needs. Other than that everything was perfect the gauge is true not 'mostly' insulation, the wire is strong and the speaker cable is well made. I did not use the included ring terminals or zip ties I used my own heavy duty ones.

Quality Wire set

Better quality than I expected. Wires are tinned, fine and large count while flexible. Comes with nicely crimped connectors and insulation strips easily.

Just Buy It!

This is true 4 gauge wire (Even a little bigger then I expected) The fuse holder works amazing and wires have preconnected terminals this is by far the best kit just remember no RCA cables

High quality

This kit is great it has tru 4 gauge size and the envyflex wire that stuff is awesome its super easy to work with and bends with ease also they give u more than what most companies will give u in wire. I've got so much extra power wire I have to find a place to tuck it. Awesome stuff nvx always goes beyond what others won't.

Good stuff!

This item did exactly what it should. Great value. I would definitely recommend!!

By Anonymous on August 3, 2018 Verified purchase

Really Good

This is the best of any amplifier kit i ve ever tried....no one can beat NVX.....
NVX Rocks.

great setup for a great price

As this would be my first car audio install, I trusted SonicElectronix to provide me with what I needed quickly and cost-effectively. Sonic did not disappoint.
This NVX amp kit was the perfect choice to get my install going. Had to pull that 4 gage through many twists and turns before getting to the trunk...had to pull quite hard at times. No abrasions or tares, came out the other end like a champ!
The NVX XAPK4 was recommended by SonicElectronix and I'm glad I listened...thanks Sonic!

Awesome

I got this kit to power a Boss 2600 watt amp. The terminals fit the amp perfectly and the wire is very good quality. They are very flexible and can be easily routed. I would recommend any gauge NVX amp kits and they will be the only ones I ever put in my own vehicles.

By Ace on June 24, 2015 Verified purchase

WOW!!

Buy this. Worth every penny. I don't give anything 5 stars, but this kit is fantastic. Flexible cable, quality insulation, great fuse holder, quality components all the way around. The ONLY complaint is I had to use electrical tape to insure that the fuse holder housing stayed together under the hood. Honestly, a pretty minor issue.

By Timothy on September 27, 2015 Verified purchase

Great item

These were very easy to install with the shape rather then the old style fit under trim very easy

By Anonymous on September 29, 2019 Verified purchase

Perfect length for a sedan. Great product, seems durable

Had to get this to pair it with my amp wiring kit. great sturdy rca cables which provides quality sound

By Libs on September 6, 2016 Verified purchase

Great Full Wiring Kit!

This is a Great Kit for amps, inverter, or whatever you need.
Great actual thickness of Cable + Wire. Power, and Ground cables are pre-terminated on one end. Several feet on the positive Cable are sheathed for protection in your engine bay.
Has everything for an amp install, except RCAs, but I like picking up the NVX RCAs separately, because everybody's length will be different, and you can get the higher end NVX RCAs for just $10-$20.

By Josh on September 30, 2020 Verified purchase

Great sound quality delivered

Totally recommend to get this series rca from nvx, before this, i only use cheap rca and after upgradging, some notes from same songs i hear everyday comes out clearly that only i realized it was there before. Great stuff here.

Cons to me is that the jacket is a bit too soft imo, careful when installing this in your cars and maybe because its not a highest tier in their brand, but all and all great sound quality delivered trough my speakers and tweets

By Dannis on July 10, 2015 Verified purchase

I cant fault them

These kits are worth every penny
Even after 6 years now the cables are as clean as the day I bought them
Over many other kits, I've had that is not the case
NVX speaker wire NVX Power leads all perfect and the gauges are spot on.

By Tony on April 12, 2020 Verified purchase

NVX XIV25

I don't know how much a nice set of rca cables improves audio, but I've always used fairly low priced brands that have good reviews and these are no exception. Good price for good cables

Good cables

If you need a set of patch cables, don't look any further.

By Kevin on June 6, 2016 Verified purchase

rca's

Very good quality rca's with nice ends and twisted wires. Sonic added these to my cart for $10, thanks Sonic

By Surf Taxi on May 1, 2016 Verified purchase

Great Product

I replaced my wally world RCA's and what a difference. NVX rca's are way better. These things are quite flexible compared to my cheapos and do the job.

By Taylor on October 18, 2015 Verified purchase

Good price good quality

Definitely buy nvx amp kits.good price and quality build.currently running a4 gauge nvx amp kit running a 1700 watts rms amp and 4 channel amp with no problem.

By Adam on April 4, 2020 Verified purchase

Great value

Really good cables much easier than running multiple sets and easily as good as the big name brands

LOVE IT!

NVX is my go to for a lot of things, but NVX wires... well I don't even look at others. Since 2012 I have only installed NVX wires and amp kits! The kits come with all you need and are the best quality and price I have found! Thanks Sonic!

By Anonymous on November 23, 2018 Verified purchase

Great price

Product shipped fast and performs with no issues, will definitely buy from sonic again.

By David on April 14, 2017 Verified purchase

Great kit!

I bought this amp kit to pair with my NVX amp. The quality is top notch and super easy to hook up! Plus it looks cool being blue and black. Love it!

By Avenue Gent on May 17, 2020 Verified purchase

NVX XAPK4

Great prices on great equipment and fast delivery thanx sonic

By Anonymous on March 6, 2019 Verified purchase

Good price

Very good quality wire and for the price you cannot beat it. Does exactly what it says it does. Bends easy making it easy to install.

Top notch rca’s

Paired these with the nvx xiv46’s and love them nice length quality product recommend to everyone!

By Jason on February 7, 2018 Verified purchase

Great lower cost wiring kit.

Purchased this paticular kit because I didn't need RCA patch cables as I was wiring in a LOC for someone wanting to add a subwoofer.
It's not the top tier OFC kit but will work for many years, wiring and insulation are nice and soft/flexible.
I'd buy it again for sure, good little fuse holder design as well, although it didn't come with the fuses, was able to locate one locally.

By Sirr Christopher on January 14, 2018 Verified purchase

great value would buy again

a really good product and does make a really good signal to amp

Great wire

Got this because it looked good in pic and good reviews. Only con is no rca's. Other wise good plyable wire

Good stuff

Really happy with the quality of the cable, but the construction of the connectors could have been a little better. But otherwise good product!!!
Very flexible too.

NVX BEST!!!!

I love nvx,this kit is very well insulated,very nice and heavy duty

By Anonymous on April 24, 2019 Verified purchase

Amazing value

This item came bundled with my jbl club 4505 amp for the sub channel nice look and very flexible

RCA

Haven’t had a problem with these so far. Clear sound.

The search is over. Real copper. True 4ga.

Wire is OFC. CEA approved. Blue color is awesome and it's easy to work with because it's super flexible. 1116 strands of tinned copper. Price is unbeatable. Does not come with RCA cables though. Don't forget to order a set of nice ones to match this kit.

By Ryan on August 28, 2017 Verified purchase

Top quality all the way

Very impressive high strand wire, 100% silver tinned copper is the way to go. I have ordered lots from NVX as well as the bulk wire. With the speed of shipping, quality of the product, and a great price, I refuse any other wire!

By Thomas on May 28, 2020 Verified purchase

Awesome products

I totally recommend this amp kit. It is great quality and true to spec.I will definitely buy more of this product in the future.

Great quality

nVX always surprise us with their quality product,this sure make the system perfect with no noise or anything very good product to be honest

By Anonymous on December 10, 2019 Verified purchase

NVX XIV25

I recommend NXX if your on a budget but still want decent quality. Yes there are better out there but not at these prices and I have a high end system consisting of Focal mids, highs, DC audio subs and Dc audio 2k and 175.4 and honestly I hear nothing but nice clean, clear, extremely LOUD music so if I’m missing anything with these RCA’s it’s not coming through to my ears. I also like how they fit nice and tight and so far the year I have used them no problems to report work exactly as intended glad I didn’t spring for no big high dollar set now I saved that cash for better install and equipment.

By Anonymous on June 11, 2018 Verified purchase

Best kit for the money

For the price you will not find a better kit than this 4 gauge kit. Comes with everything needed power wise for your amp install. Everything from the wiring to fuse holders were great quality. Would definitely buy again.

Excellent

Great quality rca nvx has the best for but products

By Santika on April 3, 2018 Verified purchase

Good Value

They worked as advertised. No distortion and clean sound quality. Have it hooked up from a pioneer AVH-2330 to two 1500 watt amps

AWESOME QUALITY AND FAST SHIPPING WITH VALUE.

FIRST TIME BUYING FROM THIS SELLER. I HAVE TO SAY I WAS AMAZED HOW FAST THE PRODUCT CAME IN THE MAIL, AND THE QUALITY OF THE PRODUCT WAS EVEN MORE AMAZING .NVX XAPK4 KIT WAS PURE LEGIT COPPER QUALITY. BEST SERVICE AND PRODUCT. I WILL BUY MORE PRODUCTS FROM THIS SELLER.

By Rey on January 5, 2018 Verified purchase

Top of the line

All NVX wiring and cables are top of the line, true spec, and oxygen free copper... I have my whole car wired with NVX and I have no distortion , no engine noise, and everything is crisp and clear... You can't beat them...

High Quality Product from NVX

After researching the best amp wire kit to go with was NVX for what money I had to work with. When I got this product I was really happy about the quality. The 4 Gage power wire is so flexible. Sonic is amazing.

By Bart on January 9, 2016 Verified purchase

Another great product

Was worried about length and quality due to price. No worries on either, running very high wattage without issue and have more than enough length

By Gerald on October 30, 2015 Verified purchase

NVX XAPK4

When I 1st got this kit I was amazed at how heavy it was, I immediately knew that kit was made up of top quality, great job nvx.

Nice amp kit ofc

This is a beautiful amp kit that beats other brands out the water your getting 4 gauge ofc can’t beat the price the quality is there.

By JORGE on April 23, 2020 Verified purchase

NVX XAPK4

Great quality cable. Easy to bend and run. Highly recommend.

Awesome

Loved this product, I pulled and pulled, and no problems.

Great Cables

these cables are good and cheap. I know that's a unicorn, but these are the real deal. Used them for my latest mids and highs install and they didn't give me any problems. I ran another set for my sub. It'll be a while before that install happens. But if it's anything like my mids and highs, I'm sure it'll come without noise as well

Great Price!!

Absolute true gauge wire. The quality is the best I have seen so far. Would definitely buy again!!

By Kris on May 2, 2018 Verified purchase

Generous length, high quality

I ordered this kit because the power wire is 20', instead of the usual 17', and I think I'll be able to use the extra for at least part of a big-3 upgrade, since my car is pretty tiny. This may also be an attractive feature if you drive a whale. It also looks great, has a very nice fuse-holder, and nice thick eyelet. The price was also great for 20' of OFC. The included speaker wire is also heavy with thick coating.

ONE PROBLEM: the fuse was missing. This is an NVX mistake, but SonicElectronix sent me out a replacement pack of fuses with no hassle.

By Rick on December 17, 2017 Verified purchase

Great

Best part is built is the built in wire protector and great fuse holder

You need this kit!!!

I am by no means an electrical engineer to know the exact amounts of current loss from length of wire and/or type of wire, but what I can tell you is this kit is Great!! I'm sure that there are people out there who know what the exact specifications of this kit are compared to all the other kits available. Hopefully, most of them will agree with me that, for the money this is the best kit I have used. You can feel the Quality!! I used this kit on my Rockford Fosgate Prime 300x4 amp pushing my punch series 6.75" and 6x9" speakers along with the NVX XAPK0 kit to supply my HiFonics Brutus series 2100 watt amp pushing my 2 NVX VCW122s. I am sold on NVX!!

Top notch quality

This is my go to 4 gauge amp kit because the wire is top notch OFC quality and the fuse holder is nice. I like the NVX fuse holder better than the Crutchfield kit.

Great Wiring Kit

Came fast and the copper wire was thick, of good quality and nicely flexible. The one thing this kit did not have was a fuse...that would hav been good. Overall, a good deal and a good kit. This kit is being used to send current to a 500 RMS Watt Infinity Kappa sub and is doing a great job.

Best kits by far

I first started using nvx a few years ago. I had never heard of them but they were priced well so I gave them a try. They haven't disappointed me yet. They definitely have the most well put together kits you can get. Great quality wires. And even better price. If you're not sure about getting something nvx. I encourage you to try it and you won't buy any other brand kits.

Great wiring kit!

When you open this kit it is obvious that it is of the best quality. I have had plenty of off brand wiring kits before and this NVX is so much heavier and better made than those. Good price too!

By James on February 3, 2017 Verified purchase

NVX XAPK4

I finally got my amp n subs n amp hooked up n it's been working just lovely.. Thank you NVX n Sonic Electronix for your products.

NVX top of the line...

All NVX wiring and cables are true spec oxygen free copper and I don't think you will find a better set of wiring for any of your audio products... Works great... Had no problem running 1000 watts to Rockford P2 12's... Clean and crisp sound... No engine noise... Excellent product

Great product

I love the detail in how these are made and make my amp put out the best sound to my door speakers imaginable.

By Brian on August 2, 2020 Verified purchase

Excellent product

The last car I used nvx RCA cables worked perfectly had get set for my new car quality better than some more expensive products no engine hum tight connection.

By clifford on April 26, 2020 Verified purchase

50/50

i had the cables maybe a month or so and one of the cables you would have to turn it a certain way to get it to work and not have fuzz. I would have to grade them middle of the pack. i think most people have had this happen to them at some point. i travel too much with work ( months out of town) so i never returned them. maybe i just got a bad set. but the guys and gals at Sonic are great as always. i am a loyal customer. just didnt have a good go with this particular set.

By justin on January 13, 2018 Verified purchase

Complete kit

The complete kit had everything I needed for my install for my build.

By Anonymous on April 5, 2020 Verified purchase

Perfect

Purchased this wiring for my NVX JAD 800.4 amp. Very high quality wiring that is true to gauge size. High quality.

By Derek on March 31, 2017 Verified purchase

Good wiring kit

Nice OFC kit, comes pre-terminated which makes install a breeze.

By Blake on January 15, 2023 Verified purchase

Great product

The wire is super flexible the give you enough power line to run a dual amp setup and I have a big suv. Get this product it's the best I've ever seen

By Kevin on August 26, 2018 Verified purchase

PRUDUCT WORKS GREAT WITH NO NOISES

BEST RCA IVE USE SO FAR

By Eustace on March 24, 2025 Verified purchase

Top contender for best OFC amp kits

What is there to dislike here! The amp is super reasonable on price and makes Kicker and Rockford amp kits look like a waste of money with what you spend here. Comes basically with everything you need here to get your system banging.

By Carson on April 12, 2026 Verified purchase

Great Kit. High quality. Worth the price.

Everything seems super high quality. Well worth the $90.

By Tommy on February 19, 2026 Verified purchase

Top notch wiring kit!

Exceptional quality. All wires and RCAs are super flexible and scream quality. Everything I needed to install a 5 channel amp in my Honda Ridgeline. That is a picture of my amp mounted under my seat and the wiring. It's crazy that this came for free with a 250 dollar NVX amp. I could not ask for more.

By Zeb on February 12, 2026 Verified purchase

Excellent Kit

I love this kit, Super good quality, fuse holder is well built. Will recommend 10000%

By Luis on March 17, 2025 Verified purchase