Customer Ratings & Reviews

Good Box

Great box does well with my subs would buy again

Heavy Duty!

I would recommend this product for the guy's out there that are serious about their music. If you got good, high quality subs, then this box will make them perform to your sub's max output with out worry of blowing up your box.

good box

I bought this box for 2 12" kicker cvx subs 750 watts a piece its a great closed box for them especially stuffed 1/4 with pillow stuffing.. looks real good to.. quick shipping

good value

product worked for my new hifonics subs. that will be a winter system for my ride so i don't have to keep my main subs in all year round. i really like it mostly because its has black carpeting.

The Box that Rocks

Appears to be fairly well built. Arrived with a little dent and a tear but its too little to bother with. Sounds nice but doesn't hit as deep as I would have liked. Small size however, leaves me some room for a couple of bags of groceries. Three stars for durability since I've only owned this for about a month.

Amazing Enclosure, Even Better Price.

Ordered this as my first enclosure, put two 12" subs in it and I haven't found a box that hits as hard and as clean as this one has. Will definitely buy from SonicElectronix again for my car audio needs.

great box

Very sturdy well built. Allows maximum bang. Great price under $60

Fast and easy great buy

I got my complete set up: 12" kicker subs box 1000watt Mbquart amp and amp kit. I have always installed my own equipment, I found it helpful that they have videos that covered some of the product they carry. There are a few shop's in Texas like Best buy and Custom Sounds that offer equipment. But the professionalism of the knowledgeable staff the price and the reliability made it clear that I wanted to do business with them.

solid sealed box!!!

Cant beat the price. But it is really very good box. I put two 12" hifonic,also bought from here, with a 2 channel 1000 watt amp.It really shook my rearview mirror in my '97 towncar. My brother loved it so we put it in his '92 prelude.Wow!!! You can hear him before you see him. Great buy!!!

Its a box

have kicker 12, they sound alright have some loose paneling in my car, so I'm having trouble getting the clarity I want. over all its a box and it works.

Great box

I have this box with 2 kickers 12 in back of a Nissan altima and they soundgreat. Would recommend to anyone and would definitely buy again. Sonic electronix is the best

Great Box

I ordered this for 2 crunch gpv's about six months ago because I didn't have the tools to properly build my own box. After six months this box is still holding up and works perfect with my subs.

Awesome "BANG" for your buck

I am on a budget, like most of us. I needed a nice looking box for a reasonable price. For $52.00 you can't beat it.
I loaded my 2 12" Alpine TypeS subwoofers in it. Mounted my amp to the back and they are still going strong.

NVX V-series

Got this sub, to replace a N-Series 12" sub. I wanted just a little more. This sub is exactly that, just a bit more then the N-Series. The specs match up with my JAD900.5 amp perfect. Nice deep bass. Noticeably more output/bass then the N-series it replaced, seems to also play lower notes, could be a better match to my box though. The V-Series does not disappoint, if you have It in your budget you will not regret stepping up to this one. ALL NVX products I have used have been exceptional, they are now my first choice when car audio shopping.

By Brandon on March 13, 2016 Verified purchase

bangn

Love it nice size for my subs still banging the same system

NVX VSW124V2

Bought this to replace a pioneer dvc and was talked into this NVX by Keith. It is just as sensitive despite pioneer claim,their ratings are bogus at 96db as it is an in car rating not free air. This sub out plays the pioneer tsw3004d4,and plays lower with the same power. It has magnets 40mm thick compared to pioneers 35mm,despite only specking at 12 mm,its more like 16mm. Nice job under rating xmax and rms power! I am using a Sony 600w rms on this and its a good match.

By Anonymous on September 26, 2018 Verified purchase

Solid Box

Ok so I bought this box because I wanted a quick sealed enclosure for my 2 JL W3's. The box is made pretty solid, true 3/4 MDF but the caulk job on the inside was kind of off but that's nitpicking. Haha after 3 weeks though of pushing my W3s the top of the box is leaking air. So not the best made but definitely a good pre fab and pretty cheap. Can't really complain. It is nailed together tho so yea..

It's a box without a hole

Solid sealed enclosure. Two of them barely fit in the back of my 02 Focus SVT 3 door. The binding posts are cheap, I tightened them as I would other posts but one out of eight wouldn't tighten because the thread tolerance is poor and it acts like its stripped, I can get some pressure on the wire but I worry it will come loose. Probably worth spending a little more money on a better enclosure but it works fine if you're on a budget.

Awesome Sub

Bought 2 and they play deep bass, with an accurate strong bassline.
Was skeptical because never heard of NVX but definitely happy and impressed with product!

By Tom on August 19, 2017 Verified purchase

very good sub box

The box is very good at 1.25 cubic feet. I'm running 2 12's with 800 watts rms and it hasn't shattered. Wish it was 1.35 cubic to accommodate for subwoofer basket displacement but it still makes makes subs hit ridiculously hard. Polyfill helps make the box seem bigger due to mechanics and the "Q" point. I really couldn't be happier!

Great Value!

I ordered this item for my grandson and he loves it.

Good value, good quality

Bought the MDFD12 for my son. Installing the subwoofers was very easy and the enclosure looks great. Highly recommend.

good box

It is a good prefab sealed box. I looks good and is functional.

good box cheap but good

this box is deferentially cheap but i put my 2 kicker comp 12's in there makes the sound good but i am thinking of getting a ported box soon, box is made with good material and i like it have it wired down to 2 ohms its sound good

Great SQ sub, definitely not a plain midgrade woofer...

Wow... Received mine today, immediately installed it, and dialed the amp in (JAD900.5). Running this beauty solo in a sealed enclosure in a Chevy Avalanche, and it handles 80hz-down no problem (No i haven't pushed it hard yet, i know it's still early). I've got crappy door speakers for now, upgrades in route, and it really brings the music to life. Can't wait to hear it with my new components. A little more power and a perfectly tuned box, i bet this thing is a beast. Simple yet really nice design; nice strong push terminals; heavy magnet. No rating for durability because i've only had it for a few hours. Great for bass you hear and feel.

By Derrell on July 1, 2016 Verified purchase

Belva MDFD12

Belva mdfd12 12" box is good quality and good affordable price really good size an make my subwoofer sound amazing... 5 star

WOW Great Quality

I purchaced your Dual 12" sealed sub enclosure and added two Alpine R's and fosgate 1000w amp and WOW does not even come close, it Rocks. The quality of the box is really really impresive. The carpet in not the junk material I've seen in my other buddies combo's.
When you buy this box you know it will deliver and last a long time.... Sonic, keep up the good work!

Dual 12" 3/4" MDF Sealed Subwoofer Enclosure

If you are looking for a quality made box this is it !! I was very impressed with this box the moment I opened it.

The WOW factor was at least a 10.5 on the 1 to 10 scale. I WILL BUY AGAIN .

quality product

This enclosure is a well built enclosure for sq applications. I purchaced to house 2 CV vmax 122 drivers and the sound quality was almost rubbery? not tinny, never a crackle....fluid almost..... call it a well dampened sound with minimal distortion. just clean bass all the way into the 20s. made sounds i diddnt know existed. if you dont care how your music sounds and just looking for loud, look elsewhere. my only complaint, 11" cutout is too small for the vmax and the black carpet is difficult to follow a line with the router.

Great Sound!

i have 2- 12 inch Memphis audio 15-M3124D's in this box each putting out 2000 watts max hooked up to a MA audio HK10KA amp rated at 10,000 watts max. i have the subs bridged and it has way too much power going to them but the box still stands up. i would recommend that when you install your subs that you put some sort of foam stripping underneath the lip so when you screw it down you wont have and leaks at all.

Sleak, Sexy, Soundiful!

Its cheap, in price. Yeah, we see that. But let your worries go to rest, this is a GREAT BOX. Its well made, and put together great. Although they did use nails instead of screws, if you know what your doing, it won't slow you down. I have 2 12" Kickers in this baby, and pounds like a mofo.

Get this box. You won't be disappointed.

Best box for the price.

good box

I bought this box to house two Pioneer TS-W309D2 subs. Box has a solid construction. I could not feel any air coming from the seams.

GREAY BUY!

I put 2 P3 dual voice 12's in this box and they sound awesome .. cant beat the price.. the quality is there

Great box

Runs 2 Rockford Punchs in and no air leaks and bass is clear as hell. Any 12 would sound great in this box, would buy again if it ever goes bad.

Good product

Built very sturdy except for the terminals. Its easy to switch those out though so no complaints. Thanks Sonic!

A little trouble at first...

The whole was no the size it said it was. I happen to be a part-time handy man so I had a circular sander and was able to make the whoel bigger. Took about an extra 20 mins of work to mount the subs, but overall everythign worked out. No complaints about box. It is doing it's thing!

good cheap starter box

i bought this box about a year ago for 2 of my infinity reference 1260w subwoofers. I have two more in a ported box. im pushing 350w to all 4 and I have to say I like this box more than the ported. you feel it more in the sealed box but lose a little on the db's but its worth it. the box is sturdy and hasn't showed wear a bit. its tuned in the lower 40's so you wont get stupid low with it but can get loud. I would recommend it to anyone on a budget or to lazy to build their own box. it comes with polyfill which is a bonus, the terminals on the back need calked but that's with about any box you buy. overall I like it and would buy again if I had to.

soso box!

Nice and built! really small box, has nice and deep sound... but the 12in kicker crvs need more space I think

NVX Rock Solid

After replacing two Fosgate Prime 12" subs with two NVX 12" subs. I have been trying to chase down A few more screws falling off my door's,it's a new truck don't figure.
Sometimes stuff just works right. NVX ALL THE WAY BABY

Great box

Great box for the price and it can fit in any trunk.

Just buy 12 right now!

These subs are amazing. For a lower endish sub they slam! They can take power and dual 4ohm coils... so with 2 you have a final impedance of 1 ohm. Which was perfect for my current set up. I am extremely pleased and if you are in the market for quality 12s but dont wanna break the bank.. these are deffinately a very good option. Props to nvx for an awesome product.

great!!!!!

was just the right amount of space i needed for the 12's

ok so far

Installed this weekend, I did add a couple pounds of "pillow stuffing" since the box was a tad smaller then what I needed. I have noticed some flex already but im not suprised with the subs that are in it. I will add triangle shaped gussets and some "trim screw" to try and hold things together.

A sheet of real MDF (not the cheap underlayment) is $32, carpet and glue around $15 so for what they want for this its a good deal that just needs some minor tweaks.

Kick a**

The sub box was really good.

Okay

The box is leaking now. But the price and design was worth it all in all; it's just due to be resealed.

Amazing sound!!

I bought 4 of these subs for my 2019 Charger. I've waited a couple of months before posting this review so I could thoroughly break in and test them. The sound quality on these subs is absolutely amazing for the price. They perform equally to some of the other subs that cost quite a bit more, and the quality of the construction is actually better than that of some of the more expensive subs. They hit HARD!! Pair them with a quality box built to the sub's space requirements, pair them with a good amp and enjoy the thump!! I will definitely buy more of these NVX subs in the future.

By Christopher on September 22, 2021 Verified purchase

Hangs with the more expensive subs

Put it in a good accoustics 1.8 cubic foot ported box for 2012 Quad Cab Ram & driving it with a Rockford prime 500x1 @ 2 ohm. Broke it in slow over 2 weeks & sounds great, gets loud & as low as the box will allow. Might get the 2 12 box & double up on the power just for fun. No complaints & would buy again.

Perfect

Not much else to say besides great product. Shipped in only 3 days, and the pre-done polyfill is a great touch. My only comlaint would be that my car smelled like glue for a few days after I put this box in, but that's just nit-picking. Will definitely order boxes from Sonic in the future!

Sub Enclosure Review

Perfect size to fit my Infinity subs. Wish it came with mounting feet but can't ask for everything. Quality is legit for the price. Just your average rectangular box. Fit in the trunk of my 240sx which is pretty small.

Great Box

Subs fit great and the construction was sound. Thanks Sonic!

bang for the buck

i got these subs as a package deal built for my 2015 silverado crew cab. this is the best sound at half the price i could find anywhere. they sound so good the audio shop i had do the install has called to become a distributor. one of the subs showed up damaged and sonic shipped a new one right out.

By David on October 18, 2016 Verified purchase

GET WHAT YOU PAY FOR!!

This box looked great and felt very durable. My subwoofers wouldnt fit at first so I had to do some shaving, NO PROB. It sounded good for awhile and I loved it. After about two weeks, it lost its sound, went to check out the problem the whole front of the box had almost came off, Box was sealed very well, too bad they used nails instead of screws, would have been a very good box.

Nice Box

This box is pretty clean...nice black fabric, enough to hold the subs and gives them enough air to makes the subs bump and bump and bump and bump! Good buy at an unbeatable price. Awesome.

Solid choice

I bought this sub to replace the nsw122v2 I had in a sealed 1.35 cuft box. Ran it off of an alpine mrv-m500 at 300rms (checked with meter). I went with this one because of its specs, gets pretty deep and decently flat curve down to roughly 46 hz. I have it running at 500rms (same amp just 2ohm, again measured this), and I'm thoroughly impressed with this $100 sub. Deep, tight, responsive. I've learned to really enjoy Nvx subs. The base line isn't bad, but these are really worth the extra little bit. Just for reference, I listen to mostly rock/pop and once in awhile rap. Does fantastic in its entire range.

By Keith on July 17, 2019 Verified purchase

Great box

This is a great box. I prefer ported but my trunk is too small for it so I had to go with sealed. I'm still happy though. This had the perfect size for my 12s. Also the measurements are a little off. The box is a little bigger that the description said.

Great Subwoofers

Everything was going perfect with the two sub woofers i purchased. Great price & everything. But then someone stole my car & the woofers were in it. Anyways, they were GREAT while I had them.

Great

This is a great sub woofer box for the price it is heavy 41 pounds and it is sturdy. I have 2 12 kickers 600 rms 1500 peak and they sound great in this box hits lows and highs hard. I would say to any one buy it.

Okay Box

had to trim the 12" hole for my Sound stream PCO.12 subs they wouldn't fit at all. once I trimmed the MDF I love this box. they could have used spring term instead of screw though.

By James on June 1, 2015 Verified purchase

Great price for this box, very reliable. I put 2 lanzar 15s in here and they sound great, would highly recommend buying this and not wasting more money on a more expensive box

great box

this box is light weight. its made strong and fits every sub ive ever used in it.

nephew

My nephew loved this product along with the Autotik amp and Kenwood subs for Christmas. I even upgraded my old amp with a 4000 watt PZX Crunch amp to keep up with my nephew and his system lol

nice & clean

I replaced my old box with this 1 & man what a difference. My old box was 11 years old & I didn't realize it was falling apart & with this new box I noticed an instant difference. Its a great box for the price, it holds firm & can handle the full pressure of 1100 RMS

I did have to spray a little adhesive inside for 1 part of the foam & terminals were screwed in & not exactly straight & I also had to poke holes in the foam for wires but these things are no problem. The box is awesome & I will by more in the future

Good bang for the buck

It's tough to build a box for the price you can buy one of these. They are solid. I haven't had any issues with mine.

Good Quality

I would definitely recommend this box to a friend, Nothing like a good old professionally made box, I love the material that they put in it, it really adds to the sound.

Must Have!!!!!

This is an awesome enclosure. The price is very competitive as well. I am running 2 Rockford Fosgate R2D2-12 and there is no distortion at all. It is a very tight, clear sound. I highly recommended for anyone looking for a high quality low cost setup.

Good Sub Box

I like it, I think the covering looked good but I ended up messing it up trying to screw something into the outside. Otherwise i liked the box, my subs hit good in it.

ELW1214.2 BOX

Superb Box! Tight sounding bass, and best of all deep rumbling bass. Excellent for an audiophile like me.
Easy to install and use!

Belva 2 12" sealed enclosure with my 2 12" Infinity Kappas

Great box, holes were perfect sized and nice mounting depth! My triple voice coil Infinity Kappas with the 1600w amp SLAMS!!!!

Great 12's Box

This box is designed well. It is assembled, sealed, and carpeted very well. Speaker terminals are nice inside and out. Couldnt be any happier with this enclosure. Will use box with various subs.

Excellent!

Cheap and effective! This is truly one of the best boxes that i have bought for the price it is. Sounds great and made very well!

best box 4 the buck

Don't let the skimpy price fool you. This box is made very well and it's ready to go. The joints are already caulked and glued - so there is nothing more to do than mount you speaker.

It's not MDF(medium density fiberboard) like all the others, it is made from HDF; high density fiberboard. HDF boxes are typically stronger, stiffer, and lighter than MDF enclosures. The box does not require any additional bracing because of its density. It has a high an undetectable high frequency resonance and doesn't color the sound of your bass with unwanted buzzing or flexing. The HDF box is lighter than MDF because it has smaller fibers that when pressed and heated require less glue and resin to bind the fibers together.

The speaker terminals are screw type gold plated binding posts that will hold 12 g speaker wire easily. They screw into the enclosure for added strength and a tighter seal.

Just make sure that you do your math and pick the right sub for the cubic feet and stuff with poly fiber fill.

Awesome

Bought this for some 12" audiobahhn subs I bought 2 years ago still brand new in the box and hooked everything up in my 91 civic sedan to my
Hifonics BRX2000.1D Brutus Mono block and pure awesomeness. The box makes these subs slam. Highly recommend this box

Extremely well built

Insanely well built box.

Carpet job is top notch, Good quality carpet stretched perfectly over the box. All joints are glued and caulked well. theres no need for extra bracing here but you may add some 2x4's to reduce the airspace if needed. The gold push terminals are well sealed in place.

Hits low and hard with all sub's I've thrown at it (JL Audio 12W04's, Rockford Fosgate P312D4's, Kicker CVX12's and finally Alpine SWX-1242D's)

Don't be afraid of the price. It's a perfect price for a box of this caliber. Would recommend it to anyone.

Tuff Stuff

Nice heavy, good sounding box. I would reccomend putting some polyfil to "cushion" the backfire of the subwoofer, really helps w/any sealed box and totally makes a valuable difference considering it only costs about 5-10$ more. The box itself is well sealed and well made, the connectors on the inside and out are really easy to use and once connected your wires will stay put.

Good Product Good Box

This box is great for the low! I don't have nothing bad to say about this product.... The sound quality is awesome with this sealed box.

By alan on June 18, 2015 Verified purchase

this is a solid box

when i bought this box i wasnt really expecting much, because of the price an all but when i put my rockford fosgates's in it, it did sound great, and let me tell you im gettin 2 12 alpine type r next and im for sure going to be getting this box again.

so dont let the price scare you trust me you wont be disappointed

Good Box

I have this box with two hifonics subs, hooked up too a hifonics 1600 wat amp. Its a very good box and hits really good. Would approve to anyone.

Great Box

This is a well built box. Great quality carpet. If you want a good box without paying high prices this is perfect.

Your basic sealed box

Great box. Quality carpet job, all seams sealed correctly and well, and the terminals are strong and functional. Perfect basic box to make two twelve's hit perfectly. Just remember this is a sealed box, so it will have a differnet sound than that of a ported or bandpass box, but if u want a tighter hitting bass, this box if perfect.

Easy, cheap price, great quality

I bought this box for some Rockford Fosgate P1's and I couldn't be happier. The box is solid and produces some really good sound in my Audi.

Good quality

I was very surprised with the quality of this box. It was well made for it being a prefab box. The polyfil definitely gives the bass a deeper sound.

Excellent!

I bought this for my husband for his birthday and he loves it!

title

Great box well made great value enough said ten word review

Sub box

Good product I would recommend this sub box to anyone that is looking for a cheap n quality enclosed

Good quality for the price

I have 2 12 pioneer ts-a30s4 and it's working great inside this box

good value

I bought this to put some ID Max's in for my daily. Build quality is good and the price was right. The box was good enough for me to buy another for some first gen JL Audio 12W3's that I was selling.

By Anonymous on July 30, 2018 Verified purchase

Solid Construction

I ordered this box for a pair of AudioFrog gb12d4-12, the box came with a couple of nicks from shipping. And didn't have the poly fill. Customer service was on point.

By Rob on June 8, 2017 Verified purchase

Good solid box

Its a great box... small compact and puts out great sound...A+ on this. Carpet matched my existing carpet turned out pretty great im happy with it :)

great product

Comes with literally everything you'd need, fits perfectly in my 2014 dodge charger rt. Only think I had to buy in addition was a gauge to be able to lower the volume on the bass. Other then that I love it!

Great value

Worked out great for me. Will be ordering a second

By Anonymous on September 9, 2019 Verified purchase

speaker

The item did not live up to my expectation because it arrived empty and damaged.
But for the price its a pretty durable box.

Great value box

Budget-friendly box great build quality has 2 12 at 600 RMS power the woofer box holds the pressure would recommend this box.

By JORGE on July 14, 2020 Verified purchase

Fantastic Sub Box

A very well-built and nicely carpeted sub box, that looks great, and should prove to be very durable, as it is constructed with 3/4" MDF instead of thinner material of many other boxes costing more than this.

The black carpet makes more of an impact than the typical gray carpet, and the 5-way binding posts are much higher quality than the typical plastic spring connections normally found on sub boxes.

Very happy with this purchase, and would absolutely consider another should it fit my needs of enclosure volume. (It's not worth the extra time/effort to make a custom box, when this does the job just as well, and comes pre-lined with poly-filled and pre-carpeted)

By Kyle on February 26, 2016 Verified purchase

Dual 12" 3/4 MDF Sealed Subwoofer Enclosure (Belva MDFD12)

The Sealed Subwoofer Enclosure
(Belva MDFD12) that I recently purchased
from Sonic Electronix is the perfect completion to my recently installed car audio system. Sounds absolutely fantastic, I have no complaints and I will shop at Sonic Electronix again. Infact I'm shopping their
again right now for a subwoofer remote
control add more bass switch which they
had in stock for my kicker monoblock amp
CXA1200.1 THX Sonic Electronix!

By Greg on November 16, 2020 Verified purchase

Great deal

Love this box worth every penny really solid box everyone should buy it

Great Budget Box!!

Ordered my box and had it at my front door in 2 days! Great box. Its very well built and pure mdf and thick mdf wood. Nice carpeting. Only down fall i see is there was no poly fill and terminals are on sides instead of rear. I thought it was suppose to be this one pictured and both are the same numbers but different box but i am still very very pleased!

By Norman on November 29, 2017 Verified purchase

Sturdy enclosure

This is a very well constructed box, well sealed and solid. However, mine arrived new in the box and every corner had the carpet worn off and bare wood showing. Also, mine was not lined with poly-fil and the terminal cups were on the sides rather than in the back as it appears in photos- no biggy but that did influence my decision as my install would have been a little "cleaner". All in all it sounds great and seems extremely durable.

By ron on August 20, 2017 Verified purchase

great box

Perfect box just what I was looking for. Fast shipping

Great value

Great box for the price I have two 12" pioneer champion series 1400 watts speakers in this enclosure and they sound great thanks sonic for another great purchase.

By courtney on March 9, 2020 Verified purchase

So for its been great

Sounds better than I thought it would I have two 12 rockford fosgate p3 and they sound great and the price was a great deal

Great deal

The box fit great in my trunk and sounds great

Tight Bass

I always try new subs in a sealed and then ported box. This Belva is a great value and a solid , sharp looking sub box.

By Tom on August 19, 2017 Verified purchase

Awesome with my dual JL 12w6v2's

Purchased because I needed a new box for my JL Audio W6v2's. Sounds great! Great solid construction, nice that it's already lined with polyfill, no air leaks and the black carpet looks great. Can't beat it for the price and sound quality with my subs in it is excellent. Guess it would be nice if the terminals were pre-wired but I soldered my own wires in. Love it, would buy again Box fits perfect in my '13 Accord trunk

By Jason on March 8, 2016 Verified purchase

Very well built box!

Nicely built and good for breaking in any subwoofers. Highly recommended if you like that nice clear sound that cam hit that tight bass.

By Anonymous on October 3, 2018 Verified purchase

Great bang for my buck

I have to LMFAO at all those bad reviews bet they never realized 3 weeks. At lest before you go n turn up amp. Today is Aug 19. 3 weeks ago I bought n installed (DIY). My amp n remote were both turned to 2 gain will EVERYTHING ELSE was set 0. Yes at first could not hear it. But in long run worth it. By 5th day at 2 gain was raddling my mirrors. I only got one these bad boys. Due to out stock. I can't even fathom 2 these. Guys going.BTW I still haven't messed with amp or any settings. Pounder on that for awhile.....

By John AKA WhoFNcares on August 19, 2017 Verified purchase

Box

Looks good and easy to install speakers in. Made heavy for durability

Subwoofer box

It looks really sealed and no air will leak and it looks very durable

Can beat the price or quality

Nvx makes great woofers the hits every bass note. I would recommend in the future.

Good value

I would reluctantly recommend this box. The one I received was already slightly damaged in the corner with carpet coming away from some of the seams in the corners even though it was brand new from eBay.

Great Quality

Great subs. I have them on a 1200 watt hifonics and the quality is amazing. If you want a lot of bass but clean bass at the same time. Nvx is what you need.

GREAT SUBWOOFER : AWESOME LOOKS

I have two of these in my dodge ram pu. 5 cf box tuned to 29hz on 1300rms. It slams and sounds great. Get them, you wont regret it
My unboxing vid here https://youtu.be/DRb1p4pWm-4

Good Value

Good value for a 600 watt RMS subwoofer. I would prefer a replaceable dust cap and non foam surround but for the price it's worth it. I also wish it included leads for various wiring conditions similar to what Alpine provides.

By Stu on October 21, 2020 Verified purchase

BUMPS!

All I have to say about these NVX subwoofers is GET THEM NOW! Seriously. They're so nicely designed and sounds so good with that nice tight bass! Highly recommended!

By Anonymous on October 3, 2018 Verified purchase

Worth the money

I took a chance on this brand of subwoofer and glad i did.. they look great.. built really good.. and hit pretty hard.. haven't pushed them yet. Gotta break it in. They sound really good in the foxbox for a 4th gen ram.. perfect combination. Powered by a pioneer gm-d9701 at 1ohm around 1000watts rms

By Joel on January 10, 2024 Verified purchase

Great sound

I had a dc audio m3 8inch sub but wanted a little more space so i went with the nvx vsw 12 dual 4 in a sealed box. Took a little time to break in but when it did my punch 500 felt like it was not enough power. I went out and got a down4sound jp3 and this little low level sub is starting to be impressive. I had my dc audio was in a ported prefab. I decided this will be my winter sub while i look for more cone area or a better tuned box but who knows. I highly recommend this sub in a sealed box so far.

By Dizzy on December 24, 2023 Verified purchase

Great Value.

This box is awesome for the Price. A little heavy and you must have enough room. It will fill a trunk or back of a SUV. I have two JL 12's ,which makes this a combination that beats. Low, long, stretched about bass that lets the neighbor's; who live a mile away, know you're coming.

By Joshua on February 25, 2023 Verified purchase

Good Value

Seems to be a good value and plays rated power no problem. I’m not a fan of foam surrounds because of durability concerns so that’s the only minus.

Exactly what I was looking for!!

It fits into my trunk perfectly and is the exact same size that I was looking for.

By Marcus on March 2, 2020 Verified purchase

Nice box

I'm always reading reviews and they say good or bad but this subwoofer box is awesome I've put cheap and expensive subs in it the BOX MAKES THE SUB!! this is a great box at a great value very well built hits the lows and high nice only down side is terminals are a little cheap

By Anonymous on March 30, 2019 Verified purchase

Great box

I have 2 jl w3v3 subs in this box. And subs hit hard great box good value

By Anonymous on March 6, 2019 Verified purchase

Dual 12" 3/4 MDF Sealed Subwoofer Enclosure (Belva MDFD12)

Perfect fit for my car.Love the carpet cover.Would recommend you carry gray carpet covered boxes.

Great quality

For the price is a very good quality enclosure, very solid and well made

Really nice box

I put 2 mtx sub and the bass is really deep,the best, the price is really good.

By Mag80 on November 6, 2016 Verified purchase

GREAT SUB BOX

SLAMS THE BASS FOR 2 12" SUBS HARD AND GREAT. WELL WORTH THE MONEY AND THE QUALITY THAT ITS MADE FROM WOULD BUY AGAIN FOR DIFFERENT CARS.

By Michael on July 9, 2022 Verified purchase

Dual 12" 3/4 MDF Sealed Subwoofer Enclosure (Belva MDFD12)

Made out of high quality mdf nice tight bass highly recommend this box

Dual 12" 3/4 MDF Sealed Subwoofer Enclosure (Belva MDFD12)

Solid product. I wouldn't put a subwoofer heavier than 30-35 lbs each in it thought. It's lined with polyfil so you'll have to cut a small hole where the terminals are but other than that it's a pretty good box for the price.

great sub

nvx makes great stuff. these are not as robust as the last ones.. but non the less nvx and sonic are great to deal with. i installed the old one and the new one into a buddys car after getting a bigger amp. they do impress for specs and cost

Exceeds expectations

I tried a pair of the 10” version in a sealed box and was less than satisfied. Went with one of these in a ported box and much better. My last vehicle I ran 2 Massive Audio Hippo XL 8’s and this single 12 is close at a much cheaper cost and less power needs. This series of NVX subs are great for the price in ported enclosures.

By PickleRick on May 20, 2022 Verified purchase

Dual 12" 3/4 MDF Sealed Subwoofer Enclosure (Belva MDFD12)

Purchased this enclosure for my son's first system in his '16 Cruze. Great alternative to building a custom enclosure. Great match for the ID12s I had leftover from a previous system. Also, as always, Sonic Electronix has the best prices and ships fast.

By Anonymous on January 30, 2019 Verified purchase

NVX

Solid construction and subs sound great. would definitely recommend NVX.

By rocky on April 7, 2018 Verified purchase

Best Value!

This was already the best deal for a 3/4" MDF dual enclosure I could find, everything else in this range is 5/8".

For the price I wasn't expecting much.
However When it arrived found it is of good build quality, with decent carpet.

They already lined the inside with polyfil, more added value.

Then to top it off, found it has really nice gold plated screw type wire terminals. Better connection and added peace of mind that connections will not come undone.

This is probably the best deal/value on the internet for a dual 12 enclosure. Probably why it's backordered at time of this review.

Very Happy!

great bass

very happy with the sound that what my truck needed thank sonic electronix for your help in choosing this subwoofer.

Great Pound for Pound

These 12's pound, it feels like I have Thor trapped in my trunk. I bought them to replace a pair of Rockford Fosgate P2D4 12's and in a sealed sound ordinance box with an NVX 104, 1500-watt mono block amp wired @ 1ohm, and they are more than comparable. In fact, if you take into account the value factor, these top the P2D4-12 hands down. Robust, well built, all the features of my previous Rockford Fosgate's, but at fraction of the cost. The quality was way more than I expected and very durable. I say that because for the first few days of installation I had the gains turned up way too high and I thought I had blown my new subs, but after I shut everything down and recalibrated, I was back and running, no sweat.

By Armando on August 3, 2022 Verified purchase

Awesome product!!! Great price!!

First time buying this audio brand. I have bought the rca and wiring from NVX. Loved it. These speakers I bought beat!!! It’s amazing how hard they hit in a potted box!!! Man!!!! I recommend this to anybody!!!! Shipping always amazing!!!

They Work ok so far

I have 2 of them in a bandpass box, With a Rockville Rxd-t2. I have each one on its own channel wired at 2 ohms. They are loud but could be louder. lol At this point I'm just not wanting to blow them. I can Say that they hold the Rms that they say and don't distort at all. Best deal from sonic deals.

By Les on January 1, 2022 Verified purchase

Wow! These NVX Push hard in my Buick century

I am using a 1100watt Hilfonics Amp and it sounds amazingly clean and hits super hard! The best upgrade yet for A very good price! Heads are turning for sure! They match well with my Polk Audio Component set u

They are Worth every cent! I’ve recommended them to a friend Because He loves how my system sounds. Clear!

Exceeds expectations

I tried a pair of the 10” version in a sealed box and was less than satisfied. Went with one of these in a ported box and much better. My last vehicle I ran 2 Massive Audio Hippo XL 8’s and this single 12 is close at a much cheaper cost and less power needs. This series of NVX subs are great for the price in ported enclosures.

Subwoofer enclosure

Good quality would buy again
Good prices
Always love sonicelectronix

Great sounding sub

Have these subs in a sealed box for a truck. Added some polyfill they sound really good. I'm not running them hard yet and they still sounds great. Thinking about putting them in a ported box after break in now I think I'll keep them in sealed box a bit longer since I like the sound they put out.They play clean and can hit low and that's coming from a sealed truck box with .98cu ft air space.
Love ordering from Sonic Electronix their shipping is quick and fast.

By Arthur on October 11, 2016 Verified purchase

Awesom subs

I bought these as a package deal with a box that fits under the seat of my 2015 Silverado crew cab. It sounds amazing for the tight space they are in and I haven't even turned the gains up on the amp as I'm still breaking them in. One of the subs was damaged when I received it and they sent me a new one immediately. I am very impressed and would recommend to anyone looking for a great sub at a great price.

By Noshorts26 on July 29, 2016 Verified purchase

This thing slams for the price

First time using nvx and I am completely shocked on how responsive this subwoofer is. I have this hooked up to an alpine amp running 500w RMS to the subwoofer at 2ohms. Still breaking it in but this thing hits like a truck.

By John on April 27, 2025 Verified purchase

Bassssssssssss!

Great subs and phenomenal sound. For the money these are worth every penny. Haven't even turned them up yet and they hit very nice.

By Ron on April 17, 2025 Verified purchase