Customer Ratings & Reviews

Good value

This kit is true 4 gauge copper wire. Worked great for what I needed it for. Not much else to say besides it is also very flexible!

Honda civic 2010 lx big 3

This big 3 is a very nice setup and I haven't installed it just yet. Great quality wire and you can never go wrong with this product. The price is ok just a little over my budget lol

Honda civic 2010 lx big 3

This big 3 is a very nice setup and I haven't installed it just yet. Great quality wire and you can never go wrong with this product. The price is ok just a little over my budget lol

Best kit money can buy

This kit includes everything I needed for my 4-channel JL Audio amp. I love it. The look of the fuse holder is awesome and the braided cable protector is great under the hood too. The RCAs worked like a charm and I had plenty of speaker wire included. No complaints.

great

Have not installed yet but it seems to be everything it claims to be. Did recomend itnto a friend but he didn't listen and spent way to much for a kitat a local best buy. Did a lot of research before I bought this kit and it looked like the best value for my hard earned money. Having not yet installed is why I didn't go all five stars. Soon it will be going into my 89 olds custom cruiser with 4 12s....

Great Amp Kit

This is a high quality 4g amp kit for a great price .... nice 100 amp fuse box

Awesome kit!!!

This wiring kit is the best I've used so far. It bends very easy in tight places and this is the size wire that I actually paid for. Don't waste $ on cheaper brands...NVX is AWESOME!!!

Great Complete Package

I replaced all speaker wiring in my car with this kit. The quality of all the wires is very good. NVX is nice quality!

great product

This kit is very good and great quality. I would recommend this product for basic and some advanced systems.

Top of the line kit at decent price

This kit has everything and is as good as you can buy. Better than jl, Rockford, stinger, and kicker. At a price less than or equal to those mentioned. True spec, silver tinned ofc

Solved that static alternator whine issue

My brand new car's factory sound system sounded terrible so I decided to upgrade it. I had to keep my factory radio because the car's functions depend on the screen/radio of the car. I installed a JL audio 300/4v2 along with Focal components and after I was done installing everything, there was a tremendously loud static noise coming from the speakers, even with the volume all the way down. When I would rev up the engine, it would make a whistling, whining noise from the alternator. I spent 2 days trouble shooting the problem. Separating wires, re-grounding, running new wires, adjusting gains, etc. and none of that worked. I saw this LOC from NVX and decided to give it a try since it claimed to have a digital noise filter feature. Man, as soon as I installed I was blown away. That annoying noise was GONE! The music sounds crystal clear now. I purchased that particular set up because I wanted an SQ sound system and now it delivers that very clean music with absolutely NO distorting noise. I was stressed out for 2 days wondering how to fix it. If you are in the same situation, buy this LOC. It will end your problems with all that unwanted noise. Forget those "solutions" people talk about all over the internet about re-grounding, ground isolation, and all that junk. This LOC solved it for me. It was so easy to install, it has adjustable gains, and feels very sturdy. Even if you turn the gains all the way up on the LOC, you will still hear no unwanted noise.

Excellent product

Easy to install in factory stereo. Great product. No noise at all. High fidelity sound.

perfect!

No unwanted noise, soft turn on and off, cant even tell its there. It does its job seemlessly in my 09 Jeep Grand cherokee with boston acoustics system. I wanted full range sound out of the door speakers so I pulled off the output from the factory amp of the dash speakers and rear speakers. All speakers are now full range and amplified with a kicker ZX350.4. I can keep the gain super low on the amp and cross over the speakers to keep the bass out with the amp controls. This LOC made all that possible to use the kicker amp with NO NOISE.

Good Converter

I bought this to replace another one that I bought that had terrible noise and poor quality. This one however is great and works as you would expect. Spend the extra couple of bucks and get this one

bueno

Me gusto lo fácil que es instalar lo y los resultados son bienos

NVX Output converter

This converter was easy to install plus it added power and more clarity to my speakers. It has a remote wire for my amp.

Quality Amp Kit

This amp kit is high quality. Don't expect sound hiss or whining from you audio system if you use this kit. As long as you wire everything up right and run your wires properly, then this kit is the best for the money and you'll like the quality. High quality copper makes a big difference in sound quality and proper power distribution.
NVX deserves a pat on the back for making this one. Good job.

Perfection! NVX is the best!

Durable, small, easy to use, fun, quality build and sound! Great LOC! No unwanted noise! Love the gain controls and remote turn on for an amplifier! Works wonderfully with my NVX JAD900.5 and my NVX 4 channel rcas! NVX is the only way to go! I just can't get enough of NVX! Thanks NVX and Sonic Electronix for all of your support!

Nice amp kit.

The speaker, power, and ground wire are exceptional. Very flexible, easy to run, no smell, true to size and just look and feel nice. The RCA looks good too but the ends fit on my amp a little loose. All in all, the kit works perfectly and looks good

Worked great!

I installed this unit on my boat due to my radio had to pre amps.. Easy to wire although theres a bunch of wires. Works great for triggering your amp though! My radio put out 160W so I left all my channels on the unit turned down. Would highly recommend!

Digital Converter

I used this to convert wired to RCA. This device worked great. I eventually replaced the factory head unit with a Pioneer that had RCA outputs.

Great product

This was a great kit to deal with and would recommend it to all of my friends. This was a really good quality kit that will also look good in any install .

Don't cheap out

I hesitated to go with a true amp install kit until I matched this up with a Rockford Fosgate amp that called for a 4 gauge install kit. Just the ease of installation was well worth the price. For 4-gauge wire this is really flexible and easy to snake through the dash and under the hood. Don't believe me? Go to a big box hardware store and just see how in-flexible 4-gauge copper house wire can be. Plus, the difference in the protective jacket of the two is night and day. The NVX kit is a winner hands down. I didn't need to use everything in the kit. Some of the hardware bits I passed up. But I used all the rest. Glad I bought it.

A++

Great value and excellent product no doubt. Very flexible yet sturdy wires with lots of metal not filler jacketing. Worth the money no question.

First time

I was impressed with the quality and will use them every time .

Great product.

Materials are first class. This is the way to go. No cheap stuff. Everything you need for your install

Great Quality

This is a great kit. The wires are great quality and it comes with shrink wrap and fuse holder. Even the speaker wire is great. If you're installing an amp, these are the kits you need.

By Corey on April 27, 2015 Verified purchase

Honda civic 2010 lx big 3

This big 3 is a very nice setup and I haven't installed it just yet. Great quality wire and you can never go wrong with this product. The price is ok just a little over my budget lol

premiun kit

Very good quality and fast shipping, i recommended buy nvx products

This wire is great...

This wire is awesome. .... The installers ran this wire to my 4 channel (Hifonics Brutus X-14 800.4) and monoblock (Hifonics BRD 2000.1D) it handles the current quite nicely. ... doesn't get hot either. .. definitely recommend this. ...

very nice kit

The kit is complete and the power & ground wire are very nice looking and high quality. They are very flexible too and not super stiff like many others. The fuse holder is nice and compact. The speaker wire is excellent too.
Just make sure you add your battery adapter!

Top of the line

This is an amp kit that will bring peace of mind as soon as you open it. This kit is top of the line without question. Look at all of the other brands and even try them (I have had kicker and fosgate kits) then compare to the nvx kit. Without question a must buy for anyone looking to actually get a much better product than what they paid for.

Awesome kit but could've used more speaker connectors

Well the above wasn't really an issue besides me having to stop by the hardware store and getting more crimp connectors. But when paying the amount of money required for this kit, I would've expected more connectors. They only provide you with 4 crimp connectors. Yep, just 4, which accounts for the positive side of the speaker but then you're left in the dark for the negative side of the speaker. Weird. Otherwise they weren't kidding about the thickness of this cable. Does the job wonderfully for the Pioneer GM-D8604. Plenty of speaker wire...more than I needed. All other wires included in the kit were more than enough for my 03 Altima.

NVX SKIT44

Great kit for the price but did not include a sub woofer cable so be sure to buy seperately. Cable was very flexible and easy to work with. Fuse was of good quality. Boots and connectors included. One of the rca cables had a bad connector

Junk

Upon receiving product, I carefully read instructions. Installed unit as directed in instructions. Product did not work, so I cut the unit out and threw it in the trash.

Great amp kit

This is a great amp kit, I got it bundled free with a JBL 5ez amp. Great that they included all wiring for 4 channels. I think I even wired the sub with the extra speaker wire from this kit (essentially got 5ch out of it). Oxygen free copper. Flexible wiring. It's great.

Some small cons:
The ground wire is way too short. Ended up using 0 gauge from my installer since he wanted to ground my amp to the frame of my car. This ground wire wasn't nearly long enough to do that. Ended up giving my ground wire from this kit to him, and using a 0 gauge wire he had. (shaved the 0g wire down so it would fit in my amp terminal).

Also the grommit for the power wire is super super tight, which isnt a bad thing. But we had to actually reverse the power wire to run it through the grommit after drilling through the firewall. The nice looking protection for that section of the cable we weren't able to use. We just used some plastic housing for the cable instead, and the part designed for the hood went into the trunk. It would have been nice to use the power cable as designed. Overall it worked out though.

Still a nice amp kit can't complain since it was bundled free! Speaker wire was great though!

By Samuel on September 4, 2015 Verified purchase

Bad quality

The wiring harness was bad out of the package. I could move the harness around to make it work, but I didn't want to install it. Had to run to a local big box store to buy another off brand one.

Great value!

Quality kit for a reasonable price, wires are better quality as compared to others.

By James on April 1, 2020 Verified purchase

Good product

I have not installed it yet. But it feels well, the quality of the materials is good, I will install it soon

Ex-Flock-4

Good unit, Good price. I have a 4 channel Amp, this is a 4 channel unit.
All 4 channels work. For $14.99 I did not expect it was going to do the dishes for me too.

The Real Deal.

IT IS BECOMING HARDER AND HARDER THESE DAYS TO FIND REAL COPPER INSTALLATION KITS AT AN AFFORDABLE PRICE. THEY ARE OUT THERE BUT MOST ARE OVERPRICED, AND SOME DON'T SPECIFY (CCA) or 100% COPPER. THIS KIT IS 100% AND A VALUE. NICE!!!!

By manuel on October 8, 2015 Verified purchase

Both

Both the wiring and capacitor made a huge difference mostly the wiring I liked it so much I went and ordered some 0 gauge wire

By Devin on July 28, 2020 Verified purchase

Nice

Great kit for the money, had everything needed and quality cable.

By Frank on April 3, 2018 Verified purchase

Great product and cheaper than the other ones I have seen

This product is easy to install and is made simple due to the wires match the colors of the speed wire that I bought to get the correct sound out of my system would suggest this product for anyone that is looking to add an amp and sub to their factory stereo

By randy on October 18, 2017 Verified purchase

Nvx Line out converter

I had the Pac lp7 4 installed in my stock car stereo, wich worked great for connecting a Rockford mono amp for subwoofer and a 4 channel amp for speakers, only problem is I was having alternator noise even tho I installed everything correctly, I tried everything and nothing took the noise out, until I read some reviews here wich said this didn't had noise, so I installed this and to my surprise only one channel ( one pair of rca) worked. Instruction said if that happened, then use the ground supplied, but that didn't worked, I checked the rca with a multimeter and there was no voltage,, then I squeezed the cables and there was some voltage, but too low compared to the pac lp7, so this didn't worked out of the package, I put the pac lp7 4 back, at least I have sound with that one, problem is I can't ship it back, cause I'm at another country. I wasted 20 bucks with shipping for this Useless converter.

By Morris on March 18, 2016 Verified purchase

Great value!!!

its got that boom for ur truck. And just a little adjustment, can tone it down very easily. I very happy and I don't get any distortion at all. A+ in my book...

NVX XKIT44

The product is very well built true 4g I would recommend this product for your car audio.

By Howard on June 14, 2020 Verified purchase

Works

Was easy to install and did the trick and good price

By Cheng on April 5, 2020 Verified purchase

Great product!

Very heavy duty wiring but still very flexible and easy to install. Would definitely buy this kit again

Quality wire and RCAs that do what they're supposed to do.

This kit is perfect for any 4-channel amp kit. Very high quality wires and RCAs. I got this free from Sonic with the purchase of my amp. The only negative is that I actually bought (2) 5-channel amps, and had to purchase an extra RCA for each. Not that big a deal, though, as I knew this, and with it being free I didn't have a problem with that.

Works that’s all I care about!

Works Like I wanted too so yea I recommend it

By Ismael on August 17, 2020 Verified purchase

NVX XKIT44

Love nvx wiring......always up to standards and then some......highly recommended.

By Casey on March 22, 2020 Verified purchase

NVX XKIT44

Very good and high quality would recommend more than enough to install amp under my passenger seat.

Came free with amp

Very good quality, extremely pleased with this amp kit. Came free with my JL amp but I would definitely purchase this amp kit in the future if needed.

Quality Product

Includes everything needed, and comes pre crimped, 100% copper true size.

By Dustin on February 8, 2018 Verified purchase

Love it

Better than I expected.Plane to buy a two channel for my subs.

Nice

Outstanding item I used it before and that is why I order more.

Good quality

I like these amp kits because the wire is good quality and they give you enough to run all the way back if you have a large SUV. Suburban or excursion

Nice quality and flexibility for tight bends

This cable kit is high quality, appears to be durable and well designed to withstand engine compartment heat. The 100% copper power and ground cables are very flexible making tight bends to keep the installation neat. The length was fine for a Toyota Camry and similar sedan installation in the trunk. I mounted the amp behind the rear seat, cut off about 6 feet of the power cable and coiled excess RCA cables under the back seat. The kit included some plastic wire tires, firewall grommet, heat shrink, terminals and protective sleeves. Highly recommended.

By James on June 21, 2016 Verified purchase

Great product

It’s really remove car noise in the wire,good product

By Anonymous on May 6, 2019 Verified purchase

Great Value

Great kit for the money, with everything you need. Great OFC wires quality

By Anonymous on August 4, 2018 Verified purchase

Excellent product

Everything comes with this kit that you would need for a single amp install. Wires appear to be durable. No road noise after hooking everything up. Price is fantastic as well.

nice kit

Very happy with amp kit. Definitely recommend this product. Worked treated

Great value

I would recommend this to anyone who's looking to do it yourself subwoofer

Really good wire

Awesome wire, really liked the extra protection on the power wire. Love the color. Little expensive. Used this for my 08 Evolution GSR, there was plenty of wire to run all 4 channels to each door from the trunk. Only downside is there were not enough wire connectors for the speaker wire, so you will have to buy extra from the hardware store.Very low resistance wire tho so if your looking for quality look no further.

Met Expectations

This item came as described. It was easy to hook up and met all my expectations!

By Anonymous on August 26, 2019 Verified purchase

Nice kit

Pleased with the kit as far as quality and price.. This was my first time buying a kit and rewiring my complete car it had everything I needed with extra to spare..

By Anonymous on February 21, 2019 Verified purchase

Nice kit

In the past I've only bought power wire and rca's from knukoncepts. Great stuff. Got a JL XD 400/4 and it came with a free NVX install kit. It's absolutely a great kit, and I would not hesitate to buy NVX kits for another install. Time will tell how well the rca's hold up, but initial impression is high.

By Andrew J. on February 25, 2018 Verified purchase

Worked great

Kit worked and did not have any issues. Plenty of wire!

By Lou on December 31, 2016 Verified purchase

Good wiring kit.

The guy who did my install does some high end installs and he said they looked to like they were top quality. The shipping was a quick and easy process. Everything I’ve ordered from sonic has arrived quickly usually with 2-3 days

By Jason on February 17, 2020 Verified purchase

Good value

Great amp kit wire nice and thick very flexible comes with all the wire you should need

By Anonymous on April 25, 2019 Verified purchase

Very good

Good product... I recommend it warmly, quality, arrived neatly and cleanly and to purchase products from Sonic Electronics. Thank you very much

By Anonymous on April 21, 2019 Verified purchase

Seems good

I've had other 4 gauge amp kits in the past. This one seems to be accurate in size of wire. And I'm an electrician so I think I know what I'm talking about. Definitely worth the money.

Very nice kit

I got this free with an amp purchase so my expectations were very low. After installing it I wouldn’t hesitate to buy it versus any of the name brand kits. And I was an installation manager for 5 years so I’ve installed lots of pricey kits.

great product

NVX XFLOC4
works great, sounds great, easy to install and small enough to hide behind factory head unit

Bad ass kit!

The highest quality wire I ever encountered.
I think it way underrated at 1000 watts. Very nice craftsmanship.

By keith on October 25, 2015 Verified purchase

2nd NVX wire kit I've used

I had purchased an NVX XAPK1D for a previous project car and for my Jeep I went with the NVX XKIT44 for my JAD800.4. These kits are the real deal and are very high quality. You get proper wire gauge copper wire that's not 50% insulation like the cheap stuff. It's copper too, not CCA, which I've had with lesser kits. The power and ground wire is super flexible for the size and having the 2 RCA's in a single wire makes it nice a clean to install. I love these NVX kits. This will not be my last.

By Jake on April 29, 2020 Verified purchase

Good kit for 4 channel amp

Excelente kit, I use it in my jl audio amp rd4/400 And is exactly for my amp.

Very nice wiring kit

I have zero experience until now with NVX. The quality of the wiring kit on every level has made me curious about other NVX products. Plus the kit was actually a two channel kit from the manufacturer but to make it a four channel kit it came with a four channel twisted pair rca , so i now have an extra two channel tested pair ca cable. Great quality and product at a great deal!

By Gerry on March 16, 2017 Verified purchase

amp install kit

NVX amp install kit made well good quality and a nice variety of pieces that gave me good versatility

By Anonymous on September 28, 2018 Verified purchase

Good sound but defective unit

Sound quality was good, no distortion, however I had a intermittent short to the left rear speaker. All connections good, so tried to adjust the RCA output pot screws and the LR fell out. (no i didn't over-turn).
Also, the trigger wiring did not work. The LED trigger indicator worked, but amp didnt power on. So I had to run a 12v wire from radio ignition wire to the amp remote. I think got a junk unit.
Called and spoke to Randy at SonicElectronix customer service, he's sending a replacement unit. Will give more feedback after second LOC installed.

By Dave on July 1, 2016 Verified purchase

Nice kit

This is a great quality amp kit. Make sure you purchase the right fuse for your amp. Comes with 100 amp fuse.

By Kevin on June 6, 2016 Verified purchase

Great LOC, great price

This turned out to be a great purchase. Sound quality is great and each line level is adjustable to help tune your system. I am impressed with the quality and will be purchasing more NVX products in the future.

By Steven on July 26, 2020 Verified purchase

NVX XKIT44

Good product worked well for the application no complaints at all.

Great buy

I bought two of these kits cuz I heard a lot of good things about the brand and the amp kits....very impressed I have a whole jl audio system and this was a great compliment to my system worth every penny

Top of the Line AMP KIT, Highly Recommended.

This is the best available kit in town & is my first purchase of NVX kits, I bought both NVX XKIT44 & NVX XAPK0, and guess what! I don't regret on my purchase.
I did a lot of research before I buy these KITS. way to go!
FIVE STARS *
highly recommended to all Basic & Advanced users.

High Quality

If you want quality wiring - get this. You're only going to wire your car once so you might as well spend the money and get good, quality wiring. Well, this is it.

Great!

Got this bundled in a deal with my NVX XAD41 amp, and couldn’t be happier.

The wire is ultra flexible and seems over sized, I used NVX brand wire ferrules for a cleaner look and good connection at all points where I would otherwise had a bare wire connection.

I really love the fuse holder, just be sure if you are installing sideways like say on a fender well you mount it with the side screws for the power wire facing where it’s easiest to access. I mounted mine to the fender with liquid nails LN-2000 and two #8 x 1/2 stainless steel screws after double checking it wouldn’t interfere with hood structure or anything else and drilling a pilot hole for the screws.

The RCA and speaker wire is excellent too though I made the mistake of running my RCAs along the door channel next to my new speaker wire runs which are amplified (100w RMS) and so introduced some noise until I moved them, not a lot but I had to turn down my amps gain to avoid some hiss. So if you for some reason can’t run them under the carpet you may want to order some RCA cables with say Mylar shielding.

I really recommend you get the install bay firewall grommets for this size just in case, they are absolute life savers. My best option was to run powerwire though the passenger floorboards firewall and they make me confident that I will have zero water intrusion.

By Frank R. on July 7, 2023 Verified purchase

Never received

Couldn't tell you if this is a good kit or not. Have been waiting nearly a month and it appears I will never receive it. I guess no loss since it was "included free" with the amp I bought. Sadly, this was my first and last purchase with Sonic. After paying extra for next day delivery, then receiving the item 5 days after I ordered, we weren't off to a good start. They were supposedly going to send the kit out but it has not shipped, nearly 3 weeks after I was told it would. Received my next day delivery money back about 2 weeks after the order; at least I got that back.

By Ryan on November 24, 2021 Verified purchase

One of the best wires I’ve bought!

Super slick look in engine bay enjoy this wiring alight

By Gio on April 3, 2022 Verified purchase

Great Product

The wiring kit was great. The time install video was helpful. Thanks.

By stefano on February 1, 2023 Verified purchase

Nice!

If you are looking for a cheap $30 amp kit, this item is not it. NVX amp kit is well made with love. Plus, the NVX kit comes with everything needed to complete your installation. I would recommend it.

By Reyze on May 14, 2023 Verified purchase

Good product great prices

I have not received this set yet, however I have had one before and they are a great value, well made.

By Brett on November 22, 2025 Verified purchase

Came free with DSP Amp

The wires in the kit are decent quality and are plenty for the amp it came with. However I already had an amp and was adding the new one. This meant I needed larger power cable than the 4awg.

By Dave on August 29, 2024 Verified purchase

Great stuff

I've never used NVX products before but when this kit arrived I was seriously impressed. Everything is high quality and right up there with other top brands I have used for wires and fuse holders. Lots of strands in the wires as well, they didn't cheap out. Great kit.

By chris on May 30, 2024 Verified purchase

NVX OFC Amp Kits for the win!

Every install I do is using one of these amp kits. My buddies always consider going CCA but I explain to them the benefits of OFC and how NVX makes it affordable but yet very reliable with excellent quality!

By Carson on March 28, 2025 Verified purchase

There kits always available ship fast

Love having a complete to install my amp even includes patch cables. Alot of more expensive one never include the cable and always another purchase to slow down install.

By michael on December 12, 2024 Verified purchase

Quality Product and Price

Product comes packaged well and is great quality for the price. The flexibility makes it easy to work with while also being a solid constructed wire kit. Sizing is what it says it is and from what I can tell it is definitely oxygen free copper. Also like the extra protective covering for the installation portion on battery side of the firewall with well crimped ends already available to hook up n go!

By Dakota on October 18, 2024 Verified purchase