(2) Polk Audio MM 1242 SVC 12” 2520w Car/Marine Subwoofers+Vented Enclosure Box - Customer Ratings & Reviews

OK wire if you like red wire

I received this wire because when I bought my Image Dynamics speakers from Sonic the description said it included speaker wire in the box, but when I received them there was none. I called Sonic and they sent this wire to make up for the error. I later called Image Dynamics and found out that they no longer include speaker wire with their speakers so Sonic if you are reading this you can update your description and pictures on the ID speakers to NOT show speaker wire. For the record I bought the Image Dynamics CTX65cs and the CTX4 speaker sets. Great speakers by the way. Thanks Sonic for all your great products and sound advice, no pun intended:)

nice sound

very good product at a pretty good price lowest i could find on net and sounds good

sounds great

Box sounds great. Only problem is the trim ring on the Hifonics subs wouldn't fit without a little grinding.

Solid Box

this box is pretty solid. i have had it for around 2 months now and its workikng great with my two alpine type s. it feels well bilt and looks nice with the shiny front part.

Great price

Speaker box is very nice the only problem I had was the face plate was to small for my speakers I had to cut a bigger hole so they can fit.So watch out for the size,dimension on this product. I would recommend this product

yes

This box is nice and heavy. It looks sexy and my nvx 12s fit in it. I would recomend this box. I dont like the terminals but thats not a big deal.

Use to purchase this all the time

Belva brand is good affordable material when starting out but through out time cca corrodes if you have the money buy ofc cable

Bargain Package Deal

Looks & Sounds Great...Box is put together well & Speakers sound Amazing

awsome value an great look

I just got one Belva BB212BK BOX ,pretty big for two 12" NVX the sound was smooth and had just the right amount of bass

Great looks with great construction.

It's simple and straightforward. The construction is great, and it came securely in another box. Separate ports for each sub. The is the best you're going to get without paying an arm and a leg for a custom enclosure.

Ok..

Not even a couple days after bumping two gto jbl in it the carpet started to split... But overall I like the bezel- but only because I paid close attention to diameters and measurements of subs I bought compared to this box's measurements. Would be better if they made it to where you could wire in a series the correct way.

Good extra fine wire

This is excellent speaker wire. One wire has round insulation while the other has square insulation making it easy to identify hot and grounds. My only installation problem was I didn't order enough. I needed a quantity of 2 just to wire a single cab pickup.

Good wire

This wire is great speaker wire. I like the way it looks and works great.

Excellent value

The speaker wire is a good price for the length and gauge.

Another GREAT PRODUCT!!

I usually build my boxes but with winter coming I don't have time. So I purchase this one and it is awesome.

By Anonymous on November 7, 2019 Verified purchase

Nice box

Nice box but once I put the speakers in it the front fence of the speaker box wouldn’t fit over the speakers the holes were to small so I had to pay to get the face trimmed

Huge

Huge box for huge sound highly recommend for powerful subs that need the space!

By Joe on April 24, 2016 Verified purchase

Have 1

Bought this box, part of the front cover where the screws are was damaged during shipping, but still decent box

By Steven on May 8, 2016 Verified purchase

GREAT BOX

Great box. It arrived almost an entire week early to my APO box (pretty impressed) and in perfect condition. My Sundown Audio SA 12's fit perfectly in the cutouts. This box slams with the SA's running at 1500w RMS. No port noise and plenty of punch in the lower frequencies. I would definitely recommend this box to anyone running a medium sized setup like mine. I did have a little issue getting it in the trunk of my E39 BMW but nothing to complain about.

This box slams!!!

This is a awesome box well built and very solid worth every penny!!
I put two Sundown Audio subs in it and it slams!!!
I honestly love it so much I am fixxen to order a second one so I can run four 12's in my truck!!
If you don't like rock solid low end bass that makes your car pulsate ,
or bass that hit's so hard it blurs your vision!!
This beautifully well crafted box is not for you!!
I highly recommend this product and Sonic Electronix I guarantee that you will not be disappointed with either!!!

By Rick Abrams on August 3, 2017 Verified purchase

Awesome Box!

I bought this peticular box as it was almost spot on for cubic feet for my JL Audio Subs. This thing is built like a tank. The carpet is good quality and the front glossy part shines real nice. If your looking for an inexpensive yet not cheaply built box, this is the one.

By Anonymous on September 3, 2019 Verified purchase

Excellent product!!!

I would definitely recommend this box. Excellent quality, shipped on time, and sounds GREAT!!! You won't find a better box in this price range

This box slams!!!

This box is amazing for the low price! if you are looking for a heavy well built box that will shake the rear view mirror slam off your windshield look no further!!
I loaded this beautifully crafted sumbitch with two sundown audio 12's and hit it with 800 watts rms and was blown the hell away!!
I would highly recommend this box to anyone who is looking to shake the pantie's off ya girlfriend or melt down grandpa's hearing aid from 2 block's away!
I will be doing business from hear on out with the fine folk's @ Sonic Electronix !!!!

Worth it

Nice durable box looks an perfomes very well great value

12" SUB BOX

Great quality build! Dual 12" Sub box with individual ports for each sub. Great sound quality!

By Al on February 19, 2020 Verified purchase

Solid construction and looks great

On initial glance look like a good box. Once I dug deeper I could see the construction was very solid. It definitely has some good weight to it. The speaker rings fit the subs perfectly. Great value for the price. I can't find any complaint.

By LocoSiete on March 11, 2020 Verified purchase

Nice box

Well made box, subs fit great and glossy insert is a nice touch

Almost perfect

Bout this box to house two of the new Alpine Type R 12’s. The cut outs on face plate of the box is a little too small for the subs to fit (if you keep the rubber ring surround on the subs). So mounting was difficult. After fighting with it for a while they worked out. Sounds great.

Best Box for the Price

This box is such an amazing value. It looks amazing and is constructed very well. The only complaint is that I had to resize the cut out for my subwoofers to fit. But overall it is an amazing value and I would definitelt recommend to a friend.

Great box

Great box in my opinion. I have 2 Orion XTR 12s in it and they sound amazing. Ordering another of these boxes to run 4 12s soon

Solid box

Solid box and it's well built however Rockford Fosgate p1 p2 or p3 subwoofers will not fit the trim around the hole is too small. I had to take off the glossy black faceplate to install the Rockford and it sounds amazing only getting A 4 star do to the faceplate I'm planning on trimming the hole bigger on the faceplate later on.

By joel on April 14, 2020 Verified purchase

Caution!

Most subs with beauty ring or thick mounting ring will NOT fit in box. Will have to cut subs or box.

By David on May 5, 2017 Verified purchase

Great quality

Well let's first start off by saying great job to all that work at Sonic! This box is great. It is very well made, and I received my order super fast. I am definitely going to recommend Sonic to everybody I know!

By Brian on March 9, 2016 Verified purchase

Love it!

Beautiful looking box, very well put together, and sounds great with the right gear in it!!

By Jonathan on November 8, 2020 Verified purchase

Built well

GREAT DEAL. Expected way less so I was pleasantly suprise.

By Alan on March 11, 2024 Verified purchase

Good quality speaker wire

Received with my order. Very good quality speaker wire

By Josh on October 7, 2024 Verified purchase

Love it

Added the JL audio w3, they fit perfectly and sounded amazing!

By Jesse on August 15, 2024 Verified purchase

awsome

sonic did it again . we love them

By roy coffey jr on August 4, 2024 Verified purchase

Hits hard

Box was exact spec for the 2 12s. Sound quality is good and it hits lows nicely

By Ron on May 18, 2025 Verified purchase

Sub are excellent for the price.

I couldn’t ask for a better sub for the price that paid. The name of the subs says it all

By Rob on January 6, 2025 Verified purchase