Customer Ratings & Reviews

Great buy!

Bought this amp kit to pair with the NVX mini amp. The wires are too big for this small of an amp but I am very impressed with the quality of wire used in this kit. This is a true 8 gauge kit. Will definetly buy again!

The Best Quality!

The minute I took all the wiring out from the box I could tell right away I made the right choice. The power and ground wire was the right weight and had plenty of flexibility in it. I bought a Kicker ZX300.1 and it required an 8 AWG kit instead of my 4 Gauge kit. The 4 Gauge kit was not even true 4 AWG, the wiring was cheap and the copper just flaked from the wire when I crimped it. The speaker wire from NVX is amazing and I love the design NVX gave for it as well (one is square other is round).

The quality of the bass has improved massively, very clean and sounds much more full. I am now going to be buying more NVX products from now on, this company rocks! Their prices are cheap, but you get superb quality.

Great quality

I'm an audiophile for home stereo system and never touched car audio and accessories until I installed new sound system in my Mini Cooper recently. Reason I got this kit simply because speaker cable was long enough for my installation, maybe also the keyword 'OFC' in the description.
Overall quality really surprises me, and sound quality was pretty acceptable. I didn't get chance to A/B compare to any of my other speaker cables (from V.D.H/Zu Audio/Kimber) but also make sense not to. No harsh high and well present mid and low and it's only $40.

NVX-XAPK8

This product comes with EVERYTHING you need to install an amp in your car. All of the parts are high quality from the wires to the fuse. With a few things from Home Depot or Lowes you have a professional looking install that looks like you just got the work done by a professional.

I would absolutely recommend this product to anyone installing an amp!!-

good kit

Good amp kit for the money, wires are thick and made of high quality materials, fuse holder seemed cheap though, would recommend to a friend.

What a kit

First amplifier install kit for me. Included everything as advertised and high quality components at that. No reduced gauge wiring here. I used it to install an NVX MVPA4 into my 2011 F150. The amp fits under the dash so I have lots of wire left over. Did I say great quality? Yes. And great price from Sonic.

Not bad for the price

only thing i wish this kit came with is an equal length ground cable to the power. im not one to ground to the body as it creates electrolyses.... im suprized since this is a "premium quality kit"

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.

great installation set!

I bought these to hook up to my massive audio nx4. Sound is clean and the wiring has a great look to it. I can see nvx took their time when designing this kit. Definitely would recommend it

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

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.

Nice RCAs

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

Good stuff!

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

By Anonymous on August 3, 2018 Verified purchase

Heavy, heavy means expensive, which means quality.

Big things come in small packages is what my title would have been, but was too much of a cliché. I am a HUGE NVX fan and this cable only proves myself on why, everything is heavy and well built and put together very nicely, I plan to use it in the future for a daily, I got another kit because this one, although I got it for free with another purchase, it wouldn't be able to handle the power the other amp would draw.

Great product

I got it because of it's price. I had to wire up an old amp I had in my new truck. I plan on upgrading soon but needed something in it for now. The power wire was plenty long enough and the fuse box actually looks good under the hood. The problem I had was that the ring terminal wasn't big enough to fit on the stud on my Chevy stock battery. I ended up having file it out to get it to fit as they didn't include one in the kit. I already had a RCA so didn't see the need for a full kit at this point. It's on a 500 watt amp and though my amp will except a 4 awg wire I'm only running maybe 300 watts so again didn't see the need. So if you only running 500 watts or so go for it. One other thing, the black wire sheath on it for protection was so far down the wire that it actually reached into the cab of extended cab truck. This is good because I could get the rubber piece over it to protect it when running it through the fire wall.

By Beast on November 3, 2016 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 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

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

Great value

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

Great price

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

By David on April 14, 2017 Verified purchase

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 value would buy again

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

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.

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.

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

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

exceeded my expectations

normally I wouldn't write a review on a box of wires, but I've purchased several amp kits before and this was the first one that came with a protective mesh around the power wire for in the engine bay, thru the firewall, and a little into the dash. I'm sure it was noted in the product description, but I didn't see that so I was pleasantly surprised when I opened the packaging. the aesthetics of the whole amp kit are quite nice as well, but that just stood out to me. just another NVX product that exceeded my expectations.

By Tim on February 8, 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...

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

Good value

Great wire kit comes with everything you need to hook up an amplifier wire is flexible and easy to install

By Anonymous on September 8, 2019 Verified purchase

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 Quality Amp Kit!

Sonic Electronix is Great!
I have been a customer for several years.
I emailed Travis in Direct Sales, and he hooked me up with an even better price.
Thanks again man.
NVX is a Great Quality Brand, with a Great price.
A complete wiring kit, (minus the RCA), (I like to buy mine separately).
True Gauge, Great Quality Wire + Cable.
Pos + Neg Cable are pre-terminated on one end.
Several feet of the Pos Cable is sheathed for better protection in your engine bay.
Great length of Cabling, Speaker Wire, + Rem lead.
Nice + Solid Fuse Block
Great Kit.
Perfect for my small, powered subwoofer.
Thank You, Again, NVX + Sonic Electronix!

By Josh on October 16, 2020 Verified purchase

Very nice cables!

After using this amp kit I will never go back to the cheap ones again! This kit leaves you confident that your amp and speakers are getting all the power they need! And the price is very reasonable.

By Ariel on July 22, 2020 Verified purchase

Very quality

Contained everything I needed for a sub install except the rca cable and line out converter

Sonic electronix is the best!!

Great product, but superior timeless service from the sonic boys!!

Worth the extra money!

This kit has everything you need. The wire is high quality and the proper gauge unlike the cheap no-name brands out there. There is more than plenty of the speaker wire. I also really like the wire loom protector on the power wire and the bolt connections are already installed.

Amazing wire

This is the third time I have purchased NVX brand wiring and just love its flexibility and all of the extra connectors for everything that comes in these kits. It is well worth the money.

By Brian on August 2, 2020 Verified purchase

Excellent quality!

I've used several cheap amp wiring kits in the past. The NVX kit was not one of them. Although it cost about the same as the cheap ones I've bought, this is an extremely nice kit. The wire is ultra high quality with nice woven sheathing on the power wire. When I buy another amp kit, this will be the one.

NVX Amp Wiring Kit

This is a high quality OFC amp wiring kit for a great price. Comparable to, or better than name brands like Monster, Kicker and Rockford The power cable is flexible and comes in a nice protective mesh with a crimped 5/16" diameter lug on the battery end. The 16 ga. speaker wires are much beefier than is what is typically used in car installs. I matched this set with some NVX RCA cables, which are also good. Overall, very impressed.

NVX cables are the best!

I know NVX is the house brand, but I'm really impressed by the build quality and value!

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

Really nice wire

I wasn't expecting much when I made my purchase but I'm glad I picked this kit. Wire is heavy & already pre terminated, Fuse holder is really nice & oversize. Nvx has some good products for a reasonable price, I won't over look them next time. I like to stick to the brands I know but Nvx is surprising me.

Great Value Amp Kit

Bought this kit to install my NVX QBUS and it made things easy. I like the fuse holder design, plenty of power and ground wire and that has comes with a bunch of odds and ends to terminate the wire. I also like that it includes speaker wire. It's a nice added value to the kit. Saved me having to buy additional wire.

By Chris on April 9, 2018 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

topnotch

quality is amazing! dont even think about hesitating and get

By Anonymous on April 3, 2019 Verified purchase

Top Notch

This is every bit as good as all the premium name brands out there , except this kit has a far better price point ..
Highly recomended .

By Chris on June 26, 2017 Verified purchase

High quality

This is easily the best wiring kit I've used in any install. The power and ground cables are very flexible. The protective sleeve on the power cable was a nice feature. The speaker wire seems very thick for 16ga, seemed closer to 14 to me. Given that it's location was marked with shrink tube, I would have liked the fuse holder to come preisntalled but that's a minor gripe. I did nick the soft insulation in the power wire while pulling it through a tight spot. Fortunately it was in the excess end and I cut that section off. For this reason, I gave durability four stars. I find it an acceptable trade off for such flexible cable though. Overall, this is an extremely high quality kit and I'm very pleased with it!

NVX XAPK8

Purchased this amp kit for my son's first system in his '16 Cruze. Great value for the quality of the power wire, fuse holder, etc included in this kit. Also, as always, Sonic Electronix has the best prices and ships fast.

By Anonymous on January 30, 2019 Verified purchase

Great product at a great price!

Great 100% copper wiring. Remote turn on wire is more than long enough. Ground wire and 12V wire are both very solid!

By Libs on September 6, 2016 Verified purchase

Great bass

I install this BassLink on my 2000 4Runner rear left panel and sound Great lot off bass and keep all space for my luggage.

good product

Great product easy install
Sounds great I would recommend this product to my freinds

Amazing

I was really unsure of how this would sound. I have it in the rear of my Prius in the storage compartment. I had to do some tuning (more so than bigger 12" subs I've used) but it really sounds great for what it is, especially at the price. I have it cranked up with the settings on the unit and found running it reverse phase really helped. I can feel the bass in the front seat and I would almost put this against some 10" subs. I almost went with the Kicker unit but after hearing it distorts at higher levels I'm very pleased I went with this unit. Like I said I have it turned up and no distortion and actually hits pretty decent. Wont wake the neighbors but cant beat it for price and size. Save money over the JBL (exact same unit) and get this.

By Anonymous on May 22, 2019 Verified purchase

Exactly what my car needes

I replaced entire sound system in my Expedition. Played some Pantera and immediately noticed lack of bass. I added this sub under the passenger seat and it provides the exact bass response I was seeking. I wasn't looking for earth shattering bass, but enough to hear bass and drums with emphasis. This speaker does that perfectly

BassLink SM

Needed a bit more bass in my '01 750 BMW. The original bass speakers' (4) foam suspension had deteriorated and I had installed a BassLink 200 subwoofer when the same defect occurred in an older 740. As you may know, the BL 200 is a dual-8" device that has a similar footprint as the BL SM - but is ~8" tall. The BL 200 has PLENTY of bass but occupies a lot of space in the boot (even though it's suspended off the floor). So I chose the BL SM model to save some trunk space and hope that the bass would be sufficient.

It was as simple as wiring 12V power and a good ground, and then connecting the L & R subwoofer speaker leads. Hardest part was attaching the device to the underside of the rear parcel shelf (so that it would not take space from the trunk floor).

Taking some time to adjust the gain, crossover, and boost dials has given me what I needed from this subwoofer w/out taking too much space. And the price was fair.

Great little sub....for certain vehicles

I installed this in a 2015 Jeep Wrangler. I had an amp and a 10" sub box in the back cargo area but wanted something more hidden, especially since I remove the top often. I bought this and it works and sounds great...to a point. It puts out good bass and fit perfectly under my seat. It does NOT sound near as good as my 10" sub did, but I already expected that when buying it. When I remove the Jeep top, it is a lot harder to get enough bass out of it. I listen to hard rock/classic rock/metal, so a "thump" isn't that big of a deal to me. But, when I have my kids listening to R&B and hip hop, this lacks that "punch" they want to hear. It has just enough adjustments that you can tweak it to get the best sound and I suggest really taking the time to mess with them. It took me a couple days of tweaking both my stereo and the sub to get just the right sound. I am quite satisfied because it fit MY needs, but if you're looking for some serious thump, this isn't for you. I would definitely recommend this for truck cabs, cars and small SUV's. I got it on sale for less than $150, which I think is a bargain! If I ever decide to go back to a sub box in my Jeep, I will definitely install this in another of my vehicles!

Basslink am infinitely

I have to say I am impressed with this product I bought it to put under my seat in 2014 mazda 5 , I already have basslink and disconnected it to put small to break it in because I didnt thought it would be not enough bass but to my surprise it's pretty good doesn't hit like the 10" basslink but between the two I believe it will be pretty balanced because I am running a 1200 watt cerwin vega amp and these two sub woofers !! I would say for 144.00 dollars this is a great under sub woofer or just in the rear ( make sure you mount it) has great sound !!!!

Infinity Bass Link in 2014 Ram 1500

I have a 2014 Ram 1500 reg cab, I wanted some extra Bass without having to take up any of my behind the seat space. I HIGHLY recommend this for some extra Bass without having to take up any more space. It slid right under my drivers seat with no problems. Tapped into the rear speaker leads using L & R high gain inputs. I am really surprised with how much extra bass it has added. True as others said, people will not feel it when your coming down the street, but it added at LEAST what factory subs have. But I think more. I lowed the bass on the audio, to the other speakers which them clearer at higher levels and turned up the gain on the Bass Link to get my bass.Sounds great. Every bit as good as the factory Premium system maybe better, I bet more Bass. I was going to up grade the other factory speakers but now I may not as it now sounds that good. Some songs it really hits. I put peel and stick velcro on the bottom, just the hook strip and it stays put. For the money and the fact it takes up no space you miss, and the truly noticeable, feel-able Bass makes this an perfect addition. I haven't been this satisfied with a single product in a while, It worth the money.

Pleasantly Surprised!

I came across this little gem during Sonic's anniversary sale, and managed to get it for $127. I honestly didn't think too much about a sound system for my 2010 GMC Sierra, but I decided that for the price, it was worth the gamble. At only 125 watts RMS, you wouldn't expect much from a little 8" sub, and I didn't either; but after thinking about how good my home theater system sounds at only 100 watts, I figured that a factory-tuned sub (especially one by Infinity) couldn't be too bad. It slid easily under the rear seat and didn't take much room at all, and the sound was quite impressive! While you won't rattle any windows, the clean bass notes will rival any premium factory system. For some, that may not be enough; but for me, a music lover that's over his early 20's SPL quest, it's a heck of a bargain. Just make sure to use your crossover settings and let the sub do the work for your lows. Order one, you won't be disappointed.

By stormyknight on September 8, 2016 Verified purchase

Great little sub for the price

I just installed this in a 2002 Impreza. It is MUCH better than the OEM sub, fits perfectly under the front seat, and really brings the bass to a more lively level. Don't expect it to rock your hair, but it will do what it is designed to do: give you a nice tight low end boost to the existing stereo sound.

By James on August 18, 2016 Verified purchase

good overall value.

I got this on sale and must I am extremely pleased with it. Sounds good and clean, The size is just right. If you're looking for big booming bass I would look elsewhere but if u want to just add some bass and not sacrifice space then I would recommend this.

By Mac on August 11, 2016 Verified purchase

More bass than expected!

This being my first shallow profile subwoofer I wasn't sure what to expect. Wow! Was I surprised! This little thing pounds. Don't get me wrong, it's not on the level of a 12" or 15" sub box, but it adds some really nice bass for such a small footprint.

By Devin on March 22, 2017 Verified purchase

Better than expected

I bought this to install in my wife's scion xb. I needed something that would fit under the seat and sound good. This was a great choice. It has a built in amplifier and is easy to install. I ordered an 8 gauge install kit and it was a snap.
Ok on to the review, it adds the perfect amount of bass. No it doesn't slam and vibrate the car but it does add some real nice bass to the music. She is real happy with her system now and I am happy that she is happy.

By Kevin on February 22, 2017 Verified purchase

NICE underseat BASS!

I have a 2000 honda CRV, and I was looking for a small subs to put under my seat because I don't like to take space in my cargo. I saw some reviews that the performance of the bass is the same as the factory car. which I think is wrong! It made a great difference for what I'm having before. but it always goes with your PREFERENCE! i just want a little more kick and space friendly for my car, and this is the right product for me. so before buying make sure what you really want and your priority in buying subs!

will totally recommend this product!

By stephen on January 3, 2017 Verified purchase

Better than expected

I did not expect that level of base, more than enough for a car and normal people. do not expect to shake the car

By Eddy on September 24, 2016 Verified purchase

basslink reloaded!!!

they say the sequel isn't as good as the original, well they were wrong.. I had an old basslink and the new shallow mount here puts out comparable amount of power yet it fits under my seat better so I didn't have to go with the trunk mount. i recommend it to everyone and all my friends are amazed at the sound when they sit in my ride

By tyler on June 29, 2016 Verified purchase

PRUDUCT WORKS GREAT WITH NO NOISES

BEST RCA IVE USE SO FAR

By Eustace on March 24, 2025 Verified purchase

Infinity BassLink SM + Premium 8 Gauge Installation Kit

A while ago I replaced the old factory stereo in my 1992 Chevy pickup. After replacing the stereo I realized that one of the dash speakers was bad, so I replaced them with Infinity Reference X REF-6402cfx speakers. That made a noticeable improvement.
But then I finally decided to add this little under the seat subwoofer package. Man what a major deference.
I love this setup so much that I find myself driving my old truck all the time now just to listen to my music. I had the song "Foreplay / Long time" by Boston cranked up loud today, gees I didn't want to get out of my truck. I'm thinking about adding one of these to my Chevy Tahoe as well.

Awesome

Surprised of the big sound that comes out of this unit

BassLink

I didn't want to rattle the windows, just wanted some good solid deep bass that my speakers were not giving me. This fits the bill perfectly

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

Decent quality

It was free with an amp purchase. A happy camper, who doesn't like free stuff? Can't say much, but it works fine; decent quality.

By Octavio on January 27, 2025 Verified purchase

A must have for anyone with limited space.

I cannot say enough about this sub. I love to listen to hip hop and dubstep but I never even thought about putting a sub in my car due to the limited space available... until I found this. I have it underneath my passenger seat and it is awesome. No space is lost and the sound quality is unbeatable. Clear and crisp bass notes all around. A++ Highly recommend!

By Sonny on June 29, 2016 Verified purchase