Customer Ratings & Reviews

Good solid product

It is not easy to find good quality heavy guage(10~8 awg) speaker wire. You will not find products like this one at your local Best Buy. With 8awg silver tinned copper as the conductor, I don't think there's anything better out there for the price. At the time of this review, I was able to purchase 20ft of this cable for $50 on ebay. At that price point, if needed, I would make this purchase again in a heart-beat. If you are interested in this product, buy without hesitation. And, to the manufacturer: please do everything in your power to keep supplying us with this quality product for the same price!

It's speaker wire built with quality

This is very definitely not cheap wire. Flexible, no corrosion so far, great power delivery and looks good with a premium feel. Not much else to say about speaker cable.

Good quality

This is the best power cable, it flexed like a charm.
Buy it you will not regret it.

Good quality

This is the best power cable, it flexed like a charm.
Buy it you would not regret

Great Product !!

This wire is silver tinned IFC and is true to spec. Heavy duty jack and a high strand count for easy installation. Best wire I have ever purchased!
High Quality!.. I will Buy again for sure

This box kicks a**!

I have a 15" kicker compR, it works great with this box. Very good quality, cheap in price.

best speaker cable ever!

By far the best speaker wire I have ever used. I'm running it fome my kicker 300.1 ( just a filler until I get kx 1600.1) to my dule kicker comp r 12" and those things ate now hitting so much harder, its like the wire game me like 50rms watts more! If you want a high quality high flex cable this is the one.

Great quality wire

This wire is so big, unfortunately I had to cut a few strands out to fit into my speaker terminals on my DC xl. I suppose it's not bad to have to much rather than not enough when it comes to wire size. I've always been impressed with NVX and their products. This is no exception.

Nice Box

Very well designed Box. The carpet on this box is really nice and the box looks perfect. I have a kicker cvr 15 in this box and it absolutely pounds!! Oh yea and if you have a New body Style(04-08) f-150 it will fit in the space between the passenger seat and the rear seat with the smaller rear seat on the passenger side flipped up and the box will face up.

BELVA 15'' BOX

AWESOME BOX VERY SOLID AND FITS NICELY IN ANY TRUNK WITH ROOM TO SPARE

Couldnt Ask for More!

Purchased this box for my JBL W15GTI MKII. For the amount paid and product received, its a great purchase. Couldn't have built this or have it built locally for even close to the price. Is it as good as a custom ported box? Probably not but that would be subjective but I love the SQ coming from it now. Can't comment on the durability because I've only had the box for about a week but I do not hear any leaks or rattles from the box. Connection pieces are solid. But best part of my experience with this purchase was the customer service given by 'Justin'. Gave me a great deal and got it shipped to my door within the week.... Couldn't ask for more. Would definitely recommend it.

Decent Enclosure

The box works great for my new Polk MM 15". It's a little bigger than the recommended 1.5 cubic ft. but it seemed like it would suffocate in a box that small. At the 50 dollar price point you can't hardly build yourself one for that and this one has quality connectors and it's built solid. Definitely recommend to someone looking for a 15" sealed box. And Sonic was great with shipping and customer service as always.

W/ 15" Kicker

This is a great looking box. Well designed and built. The carpeting looks amazing. It's big, but fits perfectly in my '99 Durango. I figured I would have to remove the 3rd seat when I saw it, but there's actually enough space where it isn't even touching the seat or rear door.

Perfect

Fits very nicely into the back of my '90 Jetta. Could even fit two in the trunk if I crammed them together. Carpeting is very nice and so is the construction quality.

Great box

Great box. I bought this box that is great box, for the value. I really am the shipping was fast also.

good box

i have a 15" kicker comp and it slams. it fits perfectly in my grand am. the carpet is really nice. looks good in the trunk

Belva MDFS15

great price. nice looking box works very well. I have it in the trunk of a mazda protege.

Expensive but WELL worth it

I was hesitant to spend $50 on mere speaker wire, even if it was 8 Gauge. I will say that after installing it I am extremely satisfied with it. It is a great quality wire, very flexible, and easy to work with. Now I can rest assured that my Subs are getting every milli-watt my amplifier throws to them.

By Newton on June 12, 2015 Verified purchase

nvx cable

awesome product only thing I don't like is the fact that one side of the wire is square so doesn't make it easy to work with overall great product

By rafael on September 17, 2015 Verified purchase

15n sub box

My son loves this box. It is usable in the space he has.

pound that box

you get what you pay for, decent box, no frills, does the job, good construction. should've gotten a ported box though, waaaaayyyyy more sound from a ported box has been my experience, but what do I know, I'm just a consumer :)

Excellent Box

I put a 2000w Quantum Audio subwoofer in this box and it sounds better than ever. My old box was a vented box and can't hold a candle to this one.

The box is of excellent quality. Well built and solid. Very tight and clean carpeting. The pollyfill is well placed as well.

I would definitely recommend this to anyone looknig for a good sealed box for a low price. Can't be beat.

great box

the box is sturdy and good. the price and shipping were really great.

NVX XWS0820

Exelent wire do the best performance on speaker audio performance

Excellent Box.

This box is a Excellent 15" Enclosure for the Price. Only reason i gave it 4 stars is cause the Wood is kinda cheap but still very strong. Definetly takes a beating from a Orion 15. I would recomend drilling the Screw Holes out. Other wise this wood may chip or Break.

Bella enclosure review

Well built for a pre fab box.Under braced like most "bought" boxes.I added 1 inch mdf strips.Comes with stuffing if you're into that.Overall,cheap enough and good enough to slap something together in a pinch for some thump.

By Anonymous on September 16, 2019 Verified purchase

NVX BABY!

these guys keep it real with high quality products! y e to the a

Nice solid box specs are off a little.. Cutout is 14"

Cutout is 14"

Not Cutout Diameter: 14-3/4"

Worked out for me..

nice OFC wire

quality made speaker wire for my application clean & flexible hope Santa brings me more lol

By Anonymous on September 30, 2018 Verified purchase

Solid Rock-Box!:)

I really like the non-ported enclosures, as they have a crisper bass, but need a little extra juice from the amp.....and when you punch the bass i have had 1/2" MDF enclosures tend to develop rattles in them and these are 3/4" SUPER Solid construction and haven't had 1 problem yet! These are built solid and very clean and neat with the professional carpet finish! Haven't even had the corners start coming loose, and I have 2 of them.
Thanks

By John on April 6, 2018 Verified purchase

good box

product was good sounds nice, i do agree that the carpet could be glued a bit better but i dont care.

GREAT PRICE!

Loving this box! Usually, I Order Off eBay but same price-- BETTER MATERIAL & PRODUCT Will Order More Car Audio SOON!

By Claude on May 27, 2020 Verified purchase

Very transparent

I build 3 or 4 sets of speaker cables a year for my home stereo system in search of better sound. This wire rivals my best wire from many years ago.
This wire has a very transparent sound, lots of "air" It reproduces bass very cleanly and, not too much or too little. It accurately lets me hear the sound of my 1970's Mullard tubes on strings and horns. A very well balanced cable that punches way above its weight class. Highly recommended !

By Anonymous on September 25, 2019 Verified purchase

Highest quality

I purchased this to match my 4 runs of NVX 1/0. I've seen many other brands and only a few compare. Super flexible and they look great!

By Anonymous on November 18, 2018 Verified purchase

Great Product

Very good speaker wire. Hard to find this quality in any other place other than a real audio supply shop.

By Scott on January 12, 2023 Verified purchase

Great product

This is true to AWG specs and has a high strand count. Perfect for sub wiring. This could also be used as power cable for a 500 watt amp or below. Will buy again!

By Erick on August 26, 2020 Verified purchase

Great value

While they are on the bigger side for speaker wire, it allow the full current to flow without interruptions or generating heat.

By Garrett on August 9, 2020 Verified purchase

Great item!

My son wanted this for his SUV. He has been very happy with the sound quality.

Honest review

I received this box free with my sub purchase. I was planning on building a custom vented enclosure. Since it was free I wanted to at least try it out first. I upgraded from a 2 12 cheapo setup in a prefab vented enclosure to a single 15 NVX VCW in this sealed box. I'm still breaking in the sub, but I can tell that this is a great combo. The terminals, carpet, cutout, design, packaging, etc, was very well done. I cant give 5 stars for durability yet, but it looks like it will be good for a long time.

By Chris on February 25, 2016 Verified purchase

NVX VCW154 DOES NOT FIT!

The subs basket is too large for the box so I had to make the hole larger to fit the sub. Other than that the box is nice

Nice done!

I got this for my 15 boss. Hit pretty hard together. Awsome box

By Max on April 23, 2020 Verified purchase

Does the job for the price

The box does the job for the price but if you really wanna beat down the block you need to get one of those ported/vented boxes

By Nathan on January 16, 2018 Verified purchase

Tom Drummond

Some of the best wire I have found highly reccommended

Awesome box!!!!

Put my new Rockville k6 15’s in boxes and they hitting hard????

Great OFC

I chose NVX for all my wiring needs; from the silver tinned OFC for power, ground, and speaker wires, to the RCAs. After my research, these were the wires to get; and the pricing here is great.

Great wire 4 Tha PriCe!

Was definitely pleased with how well this wire runs my Four BoSs AuDio 12's to my 5,000 watt amp.. THiS WiRe RoCKs My CHeVy S10 My wife is Waitin for Windows to BLoW lol... Definitely a DeaL For YoUR DoLLaR with this Wire..

Chunks Deluxe: aint no skimping on the chocolate chips

Quality is the first thing that comes to mind when holding the wire in hand. the jacket is durable yet flexible. not super stiff like more plasticized jacketed wires are. when trying to stuff these into a ferrule decided to compare total conductive dia to an old tsunami 4g Amp Power wire, and they are pretty dang close. Way to go NVX! your 8g wire for speakers has nearly the same conductive diameter as Tsunami 4g power wire. UNGH!
Great value, fantastic performance. upgraded from some over spec 10g cause my terminals weren't stuffed to maximum capacity. LOL.
bottom line is this speaker cable aint no slouch. nice thick wire to carry a fat load of power to your hungry woofers.
The spring terminals on my Belva 4 Ohm DVC 12" couldn't accept the wire 8g ferrules. resorted to stuffing the naked wire in the terminals. we all know how frazzled wire can get when trying to insert into something just a smidgen bigger in diameter.
Its not the wires fault that the terminals are too flipping tight.
Thanks Sonic for carrying this NVX Chunk deluxe, aint no skimping on the chocolate chips, gauge speaker wire.

By Dylan on October 13, 2022 Verified purchase

sub wiring

big subs get the wire and this was a perfect match

By James on January 11, 2020 Verified purchase

8 gauge speaker wire

Absolutely the best speaker wire A+ I will be back to shop

By Anonymous on September 21, 2019 Verified purchase

Solid construction for price

Clean and solid construction inside and out. Quality materials and fit. Only issue is that the "carpet" is more of a felt-like material that is lightly glued. Good enough for home or car use, probably not for pro use. Totally great for the price.

I trust all my Car Audio Wiring needs to NVX now

8 AWG speaker wire. WOW! This stuff is impressive. I don't currently have a system that would need such wiring for a Subwoofer but in the future, I might and I wanted to snag some of this good wiring before they might not sell it anymore. All my other wiring throughout a few cars is now NVX and I am 100% satisfied. Highly Recommended!

By Chase on January 2, 2023 Verified purchase

Great buy! Put together well and everything I was hoping for

Im really happy with this box, would definatly recommend!!! Well built and would buy again

By Brock on May 7, 2020 Verified purchase

Good buy

Its true too spec 8 guage wire good stuff just like every other nvx product

Great Value

I received the wire for free with a purchase of a 10” alpine type R so I used it to wire the sub and I am not disappointed.

By Brennan on January 17, 2020 Verified purchase

NVX 8 ga speaker wire

NVX 8 ga speaker wire is very flexible, and also has thick insulation. Very good wire, i would recommend it to anyone looking to maximize their subwoofer amplifier output.

By Joseph on December 20, 2019 Verified purchase

Great Product

Always great products with speedy service! Thanks again for the positive experience.

Great value

I got this at a very good price and the material looks really good as well nice and thick wish shipping was a little faster .

By Anonymous on April 24, 2019 Verified purchase

great wire

this is great wire you don't realise how large it really is till you get it. it also has a nice heavy weight to it

NVX XWS0820 8 Ga. Speaker Wire! Nothing better!

Wow, I really like this speaker wire. Perfect for my Subs. Shaped jacket makes it easy to tell which wire your working with. Great Value product from NVX.

Great for Subwoofers!

I can NEVER find this stuff in stock anymore! So, a lot of people ask me why I need such large speaker wire to my subs. Two words: damping factor. Damping factor is the amplifier’s ability to send the current generated by a subwoofer when it continues to move after the signal stops back into the voice coil to STOP the cone. Just like a shock absorber on your car. It has nothing to do with current flow or heat. It has to do with linear resistance and the fact that damping factor for the subs can be thrown off by mere thousandths of an ohm in linear resistance of the speaker wire. Most people really wouldn’t notice a difference because of the music they like. Rap/Hip Hop/R&B will never see a difference. It also depends on the amplifier as well. Most amplifiers don’t have a very high damping factor. I run Alpine PDX amps which have a 4-ohm damping factor of >1500 at 4 ohms, >750 at 2 ohms. For rock/metal like I listen to, this makes all the difference in the world with the bass drums. Sealed box, stiff subs, and damping factor. You want the speaker wire as large as practical and as short as possible. For instance, 12AWG CTA-2015 wire has a linear resistance of 0.00559 ohms per meter. For simplicity, let’s use an amplifier with a DF of 1,000 at 4 ohms. This means the output impedance is 0.004 ohms. So, it’s 500 at 2 ohms. The linear resistance is ROUND TRIP. So 1M would be 1/2M long from the amp all the way to the sub, both inside and outside the box. Now, say you have 1M of 12AWG on an amplifier with an output impedance of 0.004 ohms. Add the linear resistance of the wire and now it’s 0.00959. On a 2-ohm sub, that’s now 208 (2/0.00959) You’ve effectively cut it by 60%. Now for 1M of 8AWG. Linear resistance is 0.00221. Total would be 0.00621. Damping factor is now 322. The “ideal” is around 311. The problem with going any larger than 8AWG is that it starts to create inductance and also most amplifiers and subs can’t accept anything larger than 8AWG. You could use those output adapters that reduce a larger wire into a terminal, but each interface/connection will add resistance. Remember, we’re talking thousandths of an ohm here. So, the largest practical gauge with the shortest length and the fewest possible connections will maximize the damping factor. Now, if ohave an amplifier with a low DF, this isn’t going to make any difference at all. Most Rockford Fosgate amplifiers only have a 4-ohm DF of 100, 50 at 2 ohms. Use 12AWG at that point. It doesn’t matter. If you listen to music with long drawn out bass notes, it really doesn’t matter either. This only applies to music with sharp bass and amplifiers with high Damping Factor. But for those of you like me who want those double bass kicks to sound like a jackhammer rather than a messy tone with the pulses run together, this is the way to go. You should also run your sub’s speaker wires through a small hole in the box with them attached to the sub already, install the sub in the box, and pull the wires until taught. Then install the amp as close to that as possible. Have the hole on the side of the box closest to the sub’s terminals. A connection like binding posts or a terminal block will add resistance. If you can get the run to be 1/4M long, which is about 9-27/32”, you’ll be even better. Then your total DF will be 392. So, there’s the reason for running such large speaker wire to a subwoofer.

SonicElectronix, stock more of this stuff PLEASE!

NVX XWS0820

NVX XWS0820 is exactly what I wanted. The delivery was also very fast.

By Jose arellanes on October 30, 2022 Verified purchase

Great Box

It's a great box for a 15 inch subwoofer. I prefer a sealed box for more space in the trunk.

By Jordan on September 22, 2022 Verified purchase

Good price on 8ga OFC speaker wire

Never been let down by NVX. Great overall value. High quality OFC copper and properly gauged

Nice sub enclosure

I have two of these in the trunk of my 2015 civic with rockford fosgate p3's

By jeremy on February 28, 2023 Verified purchase

Exactly what I needed

The speaker wire is awesome. I’ve used the nvx 12 gauge wire before but need a larger size for better current flow. This solved those issues have this wired on 2 dc audio level 3 15’s and fit like a charm. Would highly recommend it.

By daniel on June 28, 2020 Verified purchase

Great Value

Well built. Pre polyfilled. In expensive. Love this box and sonics shipping/service. Woot woot

By Tyie on June 2, 2025 Verified purchase

Like all of NVX this is amazing

NVX has always been the king of making awesome products that won’t hurt the bank! This wire I would honestly say beats all the the competition and doesn’t cut corners! Thank you NVX!

By Carson on March 29, 2025 Verified purchase

Awesome 8 ga speaker wire...it's the only wire I use for subs!!

I love the quality, durability, and flexibility of this speaker wire!!

By Ryan on March 14, 2025 Verified purchase

thick around all sides

awsome box . very well made . please buy

By roy on July 13, 2024 Verified purchase