Q Power Dual 12-Inch Heavy Duty Ported Car Audio Subwoofer Box - Deep Bass MDF Enclosure with Charcoal Carpet Finish, Shared Slot Port Vent, 1.6 Cu Ft Air Space Per Chamber

Product: Q Power Dual 12 Bass Unboxing: Pre-fabricated gray carpeted dual subwoofer enclosure. The listing says the enclosure is made from ¾” MDF with external dimensions of 36” x 16 ¼” x 13 ¼”, and that each chamber is 1.6 cubic feet, for a total internal volume of 3.2 cubic feet. The listing states the unloaded enclosure is tuned to 40 hertz. Installation: The actual external dimensions are 35 ½ wide, 15 ⅝ deep, 13 ⅛ tall, and made from ⅝” thick MDF. The port is 3” x 12” x 12”, for a total 36 square inches. Based on these measurements, the total unloaded internal volume is 3.1 cubic feet and the port is tuned to 40 hertz. The terminal cups are fitted, and can be removed with a little effort. The terminals are plug-in style on the amplifier side, and spade connections on the subwoofer side. I used 16 gauge wire from the terminals to the subs. The opening for the subwoofers is the perfect size and the cuts to make the holes are very smooth. The cuts on the edges of the carpet are sharp and pretty clean. Dislikes: Some discrepancies in the materials and dimensions. Terminal cups are fitted. Likes: The enclosure is pre-built. The enclosure is carpeted. The enclosure has speaker terminals. The volume and tuning are perfect for this pair of 12’s. The build quality is much higher than expected. Improvements: Terminal cups glued in place. Push style terminals. Opinion: The enclosure showed up in great shape. All the corners are square and the cuts are clean. Although there are some discrepancies with the dimensions and the thickness of the wood, I was still very very happy with the purchase. The enclosure sounds very good with a pair of 12’s and some moderate power. I think that for money, the results are great, making it an amazing value and I would highly recommend it to anyone that doesn’t know how or feel like building one themselves.

As a professional installer, I hope some will read this review and get more a more accurate idea about this box. With all my experience, of course I know better than to even think about messing around getting a stupid prefab box. However, I am reccomending this thing, and here is why. You people first need to know that when you buy a prefab box like this one, there are no screws or anything holding the wood together except wood glue. OF COURSE your 2 12 inch subs will eventually rattle this thing apart. No duh. However, the reason why I bought this box was the price. I was fully aware that this box wouldnt last a week with the 12 inch subs installed hitting at max power and volume. With that said, for 52 bucks, you have a fully carpeted and assembled enclosure. Instead of going to home depot or somewhere to spend roughly the same amount of money on MDF wood, then spending time to measure out, cut, glue, and assemble a box of your own, all the work has been done for you....well...most of the work... The same day I ordered this box, I went to home deopt and picked up a couple tubes of liquid nails, some caulk, and some deck screws. For about 10 to 15 bucks extra, I was able to turn this box into exactly what I needed it to be for my system on a budget. I received the box and then began my extra prepping. I checked all of the walls and joints to see if any came entirely loose, and had to actually reglue a few things with the liquid nails. Then I went through and did a complete seal with the caulk, since the box didnt come with that much to begin with, and I wanted this thing to be rock solid. I pre drilled a bunch of holes for the deck screws, and then screwed all of the joints together. I used liquid nails and caulk for the terminal cups as well, since those were on the cheaper side, but now this box has been bumping solid for over a year with no issues at all. No rattles, no leaks, just clean and low bass. I have 2 12 polk audio db subs that are rated for about 300 watts rms a piece, wired to 1 omh being powered by a 600 watt rms amp. These things are seriously so insane for a budget system. Long story short, if you know what youre doing, then spend 15 bucks more and with a little work you will have a really nice and solid enclosure for a super cheap price. No it wont be exactly tuned specifically for frequency, displacement, or anything like that, and its a little thinner than 3/4 inch mdf wood, but for the price its perfect. Don't be silly and think that youre buying a cheap and solid box on amazon for 50 bucks and youre not going to have issues. Of course it will need work, and normally I would NEVER recommend a prefabricated box to anyone. But for the price and with some extra work, its a great starter box for someone with a budget wanting to get into car audio. If you dont have any clue on what youre doing then go have someone else build you a box. Hope this helps!

Perfect fit good quality product definitely recommend

Very cheap terminals , only 1/2” mdf, half of the port is missing, spend the extra $30 and get a way better box. Top and bottom of each speaker cutout is broken. After one month of use box is falling apart with two low end skar audio subs the port has come loose and is making a horrible noise audible over the music. I’m willing to bet you can make a cardboard box sound better than this.

Better than expected!!!! Came in really fast, the speakers fit perfectly and sound amazing in the box. Fit great in my son's Mazda 3. The box is well built. Couldn't get anything better in this price range

This 12" vented dual subwoofer is great. With the cost of materials these days it was cheaper to buy then to make one

Not as shown in pictures. Port is only open to the back it does not have the wings that go off to each side like in the picture. It's also only 5/8 MDF so it's very lightweight. Just a cheap overall feeling box.