Customer Ratings & Reviews

Excellent Product!

I did a lot of researching around when I was looking for a 4 channel amp wiring kit, and I started noticing NVX products popping up quite frequently. I couldn't be more happy with this kit and the quality of the NVX products. The "Flexibility" in the wiring is really something you have to feel and NVX does such a good job with packaging, presentation, and making you feel like this is a high quality product. The design of this product is like nothing I have seen in amplifier wiring and I have really bought into this brand after purchasing a few of their products.

good product

worked well in installing the amp. Give you ever think to install a 4 channel amp. little pricey but does a good job.

Great Value

Buy this cable for you amp to get the best sound out of your radio and speakers you will be happy the sound is clear and loud

Very good kit and great product install options

So this kit gave me everything I needed minus a ground wire. I mounted this in the midcabin section of my boat so I needed at least a 20ft piece of ground. Aside from that the kit was perfect for everything I needed. Really liked the additional speaker wire because I ran out by about 15 feet prior to completion. Would definitely recommend the kit.

Great but got shorted on wire....

I would recommend this... It comes in a great display and has clean sound.... Only problem I had was it says that it comes with 65ft of speaker cable and I only recieved about 30..... I had to go out and buy an extra 20 or so feet of a different brand to have enough to wire my 4 doors... Other than that, it's fine....

By Terry on May 1, 2015 Verified purchase

great product

Its a good hook up kit runs my amp perfect not had any issues with any of the wireing great value for the price

It does the job

Bought this as a bundle deal with my amp. Great wire. Had it installed for a $100 by a professional. And yes it was done professionally. Only thing it doesn't come with us a battery clip. A minor expense $10 at Max at Walmart.

By gunner on June 14, 2015 Verified purchase

Amp install kit

Got this kit to install a replacement amp. It came with everything I needed. Only Tahiti didn’t like was the wire was not copper.

By Anonymous on September 3, 2018 Verified purchase

NVX XKIT

This kit had everything I need for my Hifonics 616.4 amplifier. The wiring looks great and is a much better alternative to competitors wiring. Works great, looks great, came with everything I needed to install. I am extremely satisfied!

By Preston on September 16, 2015 Verified purchase

Best amp kits

I have used Belva, Truconnect, and NVX amp kits. NVX is the best by far, there is a real difference and worth the extra dollars but still cheaper than many. value , quality, and all bits you might need included.

Great wiring kit

The quality of the wire is top notch. The power cord comes with a protective cover for under the hood. It comes with all the connectors needed to be successful in your install. The customer service was great when I had a question.

NVX XKIT 84

This works great. It came free when I purchased my amp and it had everything I needed for install and more. There is a TON of speaker wire included so if you are doing a project that requires alot you should be good to go. The fancy coating on the power lead is a nice touch.

Not Sure this is 100% Copper

Its a nice set of cables. No problem with sound or power running a 4 channel amp at almost 400W RMS. But I am not convinced this is 100% OFC copper. I have other plain copper wires. They are much more dense and heavy for their mass. This feels lighter than copper. It is also more flexible and holds less of a bend--when you cut it it is extremely more brittle than plain copper. It looks like there is as much tinning as there is copper. The speaker wire and amp turn on are about one guage larger than advertised according to my stripper, which is nice. It was also nice to see the speaker wires are double insulated with two separate layers of insulation. I like the kit, it seems to work. But having used plain copper many many times, this stuff looks like there is less copper than whatever lighter metal it is coated with.

By Copper? on April 17, 2016 Verified purchase

Top Notch Quality

Exactly as I would have expected with NVX...a top notch, high quality amp kit.

By Anonymous on April 16, 2019 Verified purchase

Great value

Overall the product is worth the money and it looks nice if ran correctly!

By Jason on February 11, 2018 Verified purchase

Small compact

Easy to install, small compact and very powerfull. Highly recommended

NVX makes that best kits!

I love the ease of use. Power and ground already come with terminal ring attached and shrink wrapped. First two feet of power cable has nylon mesh for protection from head inside the engine bay. Plus you get a bag of extras just in case. This is my second NVX amp kit and I will go with them again in the future.

By Marcus on January 19, 2021 Verified purchase

good quality

remember to buy this as a bundle of jbl amplify club 704, cause it is the same price as club 704.good quality,very satisfied.

By HUAHAI on March 22, 2018 Verified purchase

Great amp, nice features, super easy

This amp replaced a Planet Audio amp that took up twice the footprint. Installation was simple and straight forward. The independent gain for input and output allowed for great flexibility. I'm using this amp without any of the crossover settings, just a straight pass through to 2 sets of Infinity Kappa component speakers. (Plus separate amp and 2 10" subs). My music has never sounded so alive. Everything is clean, clear, and extremely punchy and strong. There is also a warmth that wasn't there in my PA amp. I highly recommend this amp. I was also able to install it in my 2013 GMC Sierra Crew Cab behind the rear seat and have easy access through the rear seat armrest/cup holder. (removing the seats is a GIANT PAIN) The front control panel is sharp! I can't speak highly enough of this product.

Good Quality.

Amp kit came with my JL Audio MX500/4 amp as a bundle. Just what I needed to complete my 2018 Road Glide Special fairing stereo upgrade.

Bundled with amp

This kit cane with my jbl club 4505 amp and this is a nice wiring kit wire is very flexible and has a good look only thing I think could be improved it the labeling of the rca cables

Great Value

This item is a must for Install ing your NVX amplifier it's a very easy to install I definitely recommend buying this item

By Mark on February 7, 2017 Verified purchase

NVXAmp

Almost perfect. Needs longer ground wire. I would recommend this product to everyone.

Great Value!

WORK GREAT, A1004 WORK WITH A5001 IS VERY GREAT, THE MUSIC IS BEAUTIFUL, AND THE SIZE IS SO SMALL

NVX XKIT84

The wiring installation kit worked awesome. It came with everything I needed for the install on my motorcycle

Great amplifier

Great amp.. Perfect for use in a small car like mine. Does not take a lot of space.

NVX XKIT84

The wiring installation kit worked awesome. It came with everything I needed for the install on my motorcycle

the first addition to any system

This thing is small, powerfull, and very easy to take control of your speaker output. Very versitile amp that would clean up the sound on any system. Wide variety of crossover points and super easy to adjust. I power a set of jbl 608c and a gt5 in my 77 ford standard cab and it is so clear and loud that everyone has got to ask where its coming from. Great amp

Excellent deal

The first one I received didn't have any output on all four channels. I sent it back and got another one and I am sure glad I did because this is a excellent amp for the sales price.I am using this amp to push a set of Focal 6.5'' components(70 RMS) and a set of Polk tweeters. The amp gives plenty of clean power to the components and tweeters.The sound quality is very good even with the 80db signal -to- noise ratio. The gain setting is so easy and the digital processing has a unbelievable amount of set-up options, which comes in handy in many different systems.I have only had the amp installed for a couple months now so I don't know the durability of it yet.

Great wire always a good value

always very happy with all of nvx products wires clean runs nice and there's plenty of it

Awesome!

Good Amp Kit that powered my ct sounds 4 channel amp

Very good amp

I have 3 of these up front and 2 of the matching 500s on subs. I've had to send a few back for exchanges for various quality control reasons (pass through on a couple...channels 3 and 4 on at least one). That has been a hassle, but Sonic is pretty good about returns. When you get one that works, it is great. The digital crossovers are sooooo much more convenient and precise than a dial. SQ is very good, especially compared to other full range class D's I've owned. The noise floor is very low...maybe a result of the ease of setting gains with the included CD. Only time I have hiss is when I bridge and turn gains high as they will go before clipping. Not sure I buy pasmags RMS claims (400 x 2 bridged) but the JBL ratings seem honest. These are my keepers after trying MANY setups over the past year. Test for defects and then enjoy!

OK but not the best

I have some issue with MS-A1004 amplifier. I used in a higher level audio system. And it makes whistling sound, even with the engine off, and even with radio off. I even unattached the input signal from it but the whistling still exist.
And there is other thing that makes it even stranger for me. I have two other amplifiers in this system, which are working perfectly. The other two are a DLS 3 channel class A/B amplifier (DLS CA 31) and JL Audio 500/1v2: Mono block Class D Amplifier.

I have done any checks you think of, which include isolation of power wires and signal wires, measuring the input voltage of power supply (battery), checking the speakers, checking the RCA wires,…

Unmatched Versatility!

Never before has an amp of this size existed with so much function & versatility in application! Though not a full blown DSP (which would include time alignment), they would make a mediocre headunit that has time alignment & decent EQ, but lacks widely varying crossovers, more usable than could be. That in itself opens up doors to choosing more headunits than normal. The fact that any channel can be not only high or low passed, but band passed as well which makes up for lack of a subsonic filter or controlling midwoofers and midranges for whatever configuration you desire. All without adding an extra piece in the signal chain!

Power is true at normal operating voltages ... slightly less @ 12.6 volts according to Pasmag. If you can keep a steady 14.4 then there is a bit more power although insignificant in audible difference. However, the amp is underrated in 2 ohm stereo & bridged mode. It is actually almost double the power (200 x 4 @ 2 ohm stereo & 400 x 2 @ 4 ohm bridged... 14.4 volts) vs JBL ratings. More than enough power for a SQ system.

These amps will be missed long after they're gone from the market unfortunately. They're just too ahead of their time!

sq amp

I would say it's one of the best amps out for sound quality.

Has everything you need

Perfect kit to install an amplifier, and it looks good too!

By John on September 6, 2025 Verified purchase

Great 8 gauge amp kit

Nicely priced 6 channel amp kit that was OFC wires.

By Dion on September 9, 2024 Verified purchase

Exceptional kit.

I used this to install a 5 channel NVX amp under the seat of my 2014 Honda Ridgeline. This kit is very high quality. The wiring and RCA cables are extremely flexible which makes them easy to work with. It has everything needed for the the install and I could ask for more.

By Zeb on February 12, 2026 Verified purchase