What Is The Best and Loudest Subwoofer Box Design for Deep Bass?

American Sound Connection Dual 8-Inch SPL Bass Subwoofer Labyrinth Vent Sub Box

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If you don’t mind sacrificing some space inside your car, especially in the trunk, getting your subwoofer a proper subwoofer box design can substantially upgrade audio quality. With the best and loudest subwoofer box for deep bass, you’ll hear and feel the difference, especially in the bass that it can produce. For optimal results, we recommend getting an aftermarket subwoofer box design.  

It is possible to make and design your own box, and maybe even design one that goes well with the aesthetics of your car. However, unless you know what you’re doing, you won’t be able to get the most out of your subwoofer. You might even make it sound worse!

With that said, we recommend that you scroll down and check out our top picks! 

Top 5 Best Loudest Subwoofer Box Design for Deep Bass

Your subwoofer box design is essential because it can enable the speaker to produce low-pitched frequencies without causing distortions. The most important function of a sub enclosure is to boost the bass intensity so you can truly feel the thundering of your audio tracks without producing annoying humming tones that can make it difficult to hear certain music instruments or lyrics.

Here is a quick look at the top five subwoofer boxes that are ideal for getting deeper and clearer bass.

1. Atrend Bbox E12DSV Pro-Series Subwoofer Enclosure – Best for 12-inch Dual Sub Enclosure

The Atrend Bbox E12DSV Pro-Series is a subwoofer box that’s designed to work with all kinds of modern subwoofers. It’s made mostly out of hardwood MDF with true mitered corners that help give it better durability than its competition while also helping improve its looks. It also comes with two subwoofer holes that ensure a perfect fit for all subwoofers installed. 

Atrend Bbox E12DSV Pro-Series

Speaking of looks, the premium charcoal carpet covering the box’s exterior protects the hardwood MDF material from scratches and other kinds of damage. At the same time, they help improve the aesthetics of your car.  

For added durability, the manufacturers used strong adhesive glue to hold the walls together. They also designed it for convenience, with a shared chamber that lets connecting wires between woofers easy. The screw-down terminal cups also help install sub-speaker wires easier while the design limits sound interference for better low-frequency sound.



  • Large design promotes better sound quality 
  • Well-constructed 
  • Visually-appealing 
  • Convenient and accessible 


  • You’ll want to add in a couple of screws yourself to help improve durability 
  • Noticeable rattling at louder volumes 
Bbox Dual Vented 12 Inch Subwoofer Enclosure - Pro Audio Tuned Dual Car Subwoofer Boxes & Enclosures - Premium Subwoofer Box Improves Audio Quality, Sound & Bass - Spring Loaded Speaker Terminals
  • DUAL 12 INCH VENTED SUBWOOFER ENCLOSURE: The Bbox 12 inch dual vented Pro Audio Tuned subwoofer box enclosure is designed for optimum bass response and low frequency reproduction which is ideal for lower profile sound quality subwoofers. Get the most out of your vehicle's subwoofer with car stuff designed for power and quality..Power source type:Corded Electric.Speaker size:12 inches
  • SPECIAL FORMULA: We use Aliphatic wood glue on our 12" subwoofer enclosures to ensure an airtight seal between all MDF parts. Each 12 inch subwoofer box also gets a second application of glue around all internal joints after the final assembly.
  • HIGH GRADE MDF: Our subwoofer box enclosures are built with a durable MDF that is 3/4" thick for solid frequency response and accurate music reproduction and we use a CNC Miter to ensure an airtight fit for your powered subwoofer. Our Dado design and construction offers a precision fit for our car subwoofer boxes & enclosures, which ensures a rattle and noise free environment.
  • AIRTIGHT RECESSED SIDE PANELS: We use quality materials like our special aliphatic resin wood glue and brad nails from a pneumatic nail gun to create a tight hold on the MDF parts during the glue drying process to ensure that our subwoofer boxes have an airtight no-leak, no-rattle air chamber improving the overall sound quality of your sound system.
  • BETTER SOUND, BETTER BASS, BETTER FUN: Get the party started with sound quality you can truly jam to. Our subwoofer enclosures turn your truck into a music machine! Dramatically improve the sound quality and bass response of your truck’s audio system and listen to the music the way it was meant to be heard!

2. American Sound Connection Single Vented Subwoofer Stereo Sub Box – Best Single 12-Inch Subwoofer Enclosure

Cheap, simple, and effective, the American Sound Connection Single Vented Subwoofer Stereo Sub Box is a no-frills box that’s designed to help you unleash the full potential of your car’s subwoofer.

American Sound Connection Single Vented Subwoofer Stereo Sub Box

Because of that, the enclosure is designed to be as versatile as possible. It can fit anything from older subwoofers to newer ones. It’s also fairly compact. This means that you can put it inside just about any car, from a truck bed liner to the trunk and more.   

Of course, you do get what you pay for, and while the design is great, the construction quality is less than ideal – but it will offer booming sound with the right speaker system. 


  • Dimensions: 30.25” x 17.75” x 13.75”
  • Dial 12-inch vented subwoofer enclosure
  • Aliphatic wood glue is used for an airtight seal between MDF parts
  • 3/4″ MDF construction


  • Cheaper Option 
  • Fits just about anywhere 
  • Super Versatile


  • Subpar construction quality
American Sound Connection Car Audio Single 12" Vented Subwoofer Stereo Sub Box Ported Enclosure 5/8" MDF
  • HIGH-GRADE CONSTRUCTION: The ASC 12-inch single vented subwoofer enclosure is expertly assembled with precise cuts and joins, resulting in a seamless and airtight construction. This prevents air leaks, ensuring that the subwoofer operates optimally. The vented design of the enclosure promotes efficient cooling for your subwoofer, preventing overheating during extended listening sessions.
  • VENTED / PORTED DESIGN: Designed with acoustics in mind, this enclosure ensures that your music resonates with precision and clarity. The precisely tuned ported design enhances bass response, allowing for deeper and more impactful low frequencies. This enclosure delivers a well-balanced audio experience.
  • ENHANCED AUDIO EXPERIENCE: With the 112VH in your car, you'll experience music the way it was meant to be heard. Feel the music, sense the rhythm, and immerse yourself in a concert-like audio experience every time you hit the road.
  • DIMENSIONS: Width 18-1/4" x Height 13-1/4" x Depth 16-1/4"
  • ADDITIONAL ITEM SPECS: Mounting Depth of 15-1/4" making it compatible with the majority of 12-inch subwoofers and a total Air Space of 1.60 Cubic Feet for increased output

3. QPower QBOMB12VL 

The power QBOMB12VL is a premium-priced product for those who don’t want to settle for less.   

Your 12-inch subwoofer speakers will fit this enclosure perfectly. The enclosure and speakers are easy to install and boost bass quality more than cheaper models and other homemade boxes. So if you’re looking to get the best and loudest subwoofer box design with enough deep bass to shatter windshields, this is one we highly recommend. 

This product can withstand a lot of power. It’s made out of high-quality materials, including thick 3/4-inch MDF materials and a Black Bed “Rhino” Liner Spray finish for the ideal combination of durability and aesthetics.


The only downside here, outside of the price, is that it’s obnoxiously large. So even if your car had a fairly sizable trunk, it’d take up most of the space in it.

But this bigger box size is ideal for producing louder bass sound despite the regular speaker sizes.


  • Dimensions: 36″ (W) x 14.25″ (H) x 22.5″ (D)
  • Cutout diameter: 11 inches
  • Tuned to: 47 hz
  • 3/4″ MDF construction
  • Black Bed “Rhino” Liner spray finish


  • High-quality construction 
  • Provides substantial bass upgrade 
  • Easy to install 


  • Very Large Footprint 
  • Pricey 
QPower QBOMB12VL 12" Dual Vented Ported Car Subwoofer Sub Box Enclosure
  • Dimensions: 36" (W) x 14.25" (H) x 22.5" (D)
  • Cutout diameter: 11 inches
  • Tuned to: 47 hz
  • 3/4" MDF Construction
  • Black Bed "Rhino" Liner Spray Finish

4. OnlyFactoryDirect Dual Black Subwoofer Box – Best 8-Inch Dual Sub Enclosure

The OnlyFactoryDirect Black Subwoofer Box is a cheap and space-efficient subwoofer box design perfect for those who just want to try out what it’s like to use a subwoofer box.  

OnlyFactoryDirect Black Subwoofer Box

The affordable price point makes it a great entry-level subwoofer box. This is especially true for those who want to get their speakers out of the way. But, at the same time, despite being so affordable, you’re not really compromising much. It comes with built-in terminals for easy installation, and it’s very compact.   

Speaking of compact, the design is slightly angled, so it’ll fit better in the trunk of most cars and won’t take up as much space compared to others.


  • 8″ subwoofer holes are 7.125″ 
  • High-quality MDF hardwood
  • Dimensions: Height 10″ x Length 20″ x top depth 7″ x Bottom depth 9. 75″
  • Speaker mounting depth is 6. 5″


  • Built-in terminals 
  • Angled back 
  • Quick and easy installation 
  • Space-efficient 


  • Less surface area to work with than you’d expect 
Car Black Subwoofer Box Sealed Automotive Enclosure for Two 8-Inch Woofers 8D
  • 8" Woofer holes are 7. 125" In diameter, built-in terminals with gold screw posts, wire leads included, Fits most cars
  • High quality MDF hardwood, enclosure Volume is . 33 cubic feet per chamber, Height 10" X Length 20" X top depth 7" X Bottom depth 9. 75", speaker mounting depth is 6. 5"
  • The front (where the woofers are loaded) is flat and the back is slanted, made of only the best Black aviation Carpet
  • Ships fully assembled, simply drop in your woofers
  • Applications: car, truck, SUV or fixed installation speakers

5. American Sound Connection Dual Bass Subwoofer Vent Sub Box – Runner Up 8-Inch Dual Sub Enclosure

The American Sound Connection Dual 8-Inch SPL Bass Subwoofer Labyrinth Vent Sub Box is an excellent choice for those rocking mid-and high-end 8-inch subwoofers. It’s specifically designed to help improve airflow for better performance. At the same time, the design helps improve pressure on the back speaker. As a result, this creates optimal bass output. 

American Sound Connection Dual 8-Inch SPL Bass Subwoofer Labyrinth Vent Sub Box

As for the construction, the 3/4-inch MDF hardwood material is liquid-nailed and tightened using screws. The labyrinth-style design gives you one hole per woofer, while the high-quality carpet covers the entirety of the enclosure. Although this adds a substantial amount of weight o the box, it does help make it look more elegant while adding durability.   

As for functionality, the back of the box comes with spring-loaded terminal cups. This gives you access to multiple connection possibilities between your amplifiers and subwoofers.


  • Dimensions: Width 23-1/4″ x Height 10-3/4″ x Depth 16″
  • Mounting Depth: 8-1/2 Inches
  • Air Space: 0.84 Cubic Feet


  • Liquid-nailed MDF hardwood with screws 
  • Improves airflow 
  • Excellent bass output


  • Carpets tend to
Car Audio Dual 8" SPL Bass Subwoofer Labyrinth Vent Sub Box Stereo Enclosure
  • SUPERIOR CONSTRUCTION: The ASC 2X8VMBASS is built with durability in mind. It features high-grade construction, ensuring that it can withstand the rigors of daily use and maintain its performance over time. This robust build quality ensures long-lasting reliability.
  • IMPROVE SOUND QUALITY: If you're looking for powerful and precise bass performance, this enclosure has you covered. Its labyrinth vent design maximizes airflow, allowing your 8-inch subwoofers to produce deep and resonant low frequencies. This results in an audio experience with impactful bass that adds depth and excitement to your music.
  • LABYRINTH VENT DESIGN: The enclosure features a labyrinth vent design, which is known for its ability to handle high-powered subwoofers while reducing port noise and turbulence. This design maximizes the efficiency of the subwoofers' movement, resulting in cleaner and more powerful bass. It's ideal for those who enjoy bass-heavy music genres and competitions.
  • DIMENSIONS: Width 23-1/4" x Height 10-3/4" x Depth 16"
  • ADDITIONAL ITEM SPECS: Mounting Depth of 8.5" making it compatible with the majority of 8" subwoofer and a total Air Space of 0.84 Cubic Feet for increased output

What is a Subwoofer Box and Why You Should Get One 

A subwoofer box is basically just what the name says: a box or enclosure designed for your car’s subwoofers.   

inside the trunk space.

There are four types of subwoofer boxes that you can choose from: sealed, ported, bandpass, and free-air.  


Sealed enclosures, as the name suggests, use a compact design with a single opening. The design lends itself to versatility as most subwoofers can easily fit inside one, and it fits in nearly every vehicle. However, because it doesn’t push air in and out of the box as much, you’ll need to play your speakers at higher volumes to notice the improvement.  


Ported subwoofer boxes result in a more powerful bass sound compared to sealed boxes. They’re also designed for better airflow that helps prevent overheating. This design is best used for those who like to listen to bass-heavy music, like rock, heavy metal, and other kinds of bass-heavy audio.  


A bandpass subwoofer box is usually a variation of a ported box. It’s usually used for dual subwoofers with one chamber open and the other enclosed. This is a design best for those who know what they’re looking for subwoofers. The sound quality is often described as aggressive and best for hard rock, rap, and reggae.  


Free-air subwoofer boxes usually use the trunk as the enclosure, with the subwoofer mounted on a board before it is attached against the rear seat. This minimizes the sound distortion commonly associated with subwoofers without boxes. They’re great and easy to install but only work if used with free-air subwoofers.  

Things to Consider When Picking a Loudest Subwoofer Box Design 

There are 4 major factors you should consider when choosing a subwoofer box design: the type of enclosure, size, available space, and aesthetics.  

Type of Enclosure  

Most of the time, sealed boxes are used because they don’t take up as much space, and they are fairly cheap. However, if you have more space available, you can enjoy better-quality music using a ported box. Meanwhile, bandpass boxes and free-air boxes are best used for subwoofers specifically designed for such purposes.  


The size of the box is determined by the type of enclosure used, how many subwoofers you want to fit, and the size of your speakers. The closer the size of the subwoofers you’re using is to the size of the box design, the better, or else you will need to modify your enclosure. 

For a powerful subwoofer, you should look for subwoofer drivers that are eight inches or larger. These subwoofers take up extra space, but they will enable distortion-free sound on flat frequency response.  

Available Space  

How much available space there is on your vehicle will also determine what kind of subwoofer box you’re allowed to use and install.  


Most manufacturers make subwoofer boxes with carpeted exteriors or slanted designs to help improve their look and make them fit better with the rest of your vehicle’s interiors. Consider the available space in your car before you choose the enclosure design so you can create a seamless look that best suits your vehicle’s interior.

Frequently Asked Questions

If you are redoing your vehicle’s audio system for the first time, you will likely have plenty of questions. Here is a quick look at some of the most frequently asked questions regarding subwoofer enclosures. 

Can I Add Different Subwoofer Sizes to One Box?

It is not a good idea to add subwoofers with different dimensions to the same box. This may cause distortions and can increase vibrations which may damage the subwoofers. It’s best to find a box that is compatible with your subwoofer size.

Does a Bigger Box Make Subwoofers Louder?

A larger subwoofer enclosure can increase the bass level a bit but the sound will usually sound lower quality or less controlled and usually isn’t worth the excess space they take up. 

Subwoofer enclosures that are too big can make the driver exceed its mechanical limitations. The bigger box can also increase vibrations and distortions. For cleaner sound, it is better to get a bigger subwoofer with a  bigger box if you need a louder system than it is to fit a small subwoofer into a bigger box.  

How Can I Make a Car Sub Sound Louder?

A few small upgrades to your subwoofer can make it sound a lot louder. The first thing you can do is to change the cone in front of the subwoofer. Next, you can change the voice coil. Another great way to increase your subwoofer volume is by getting the speaker installed in a larger enclosure or a different enclosure type. But you should be careful not to choose an enclosure that is too large or it can make the sound output sound cheap or hollow.  

Final Thoughts 

Getting a subwoofer box isn’t for everybody. However, if you want to enjoy deep and loud bass, a proper subwoofer box is necessary. But, doing so is much easier said than done, which is why we recommend doing your research first. Then, hopefully, you can use our tips to help you find the best and loudest subwoofer box design for deep bass. 


If you are also looking for some subwoofer speakers to fit into these subwoofer enclosures or perhaps need a new stereo, then you should have a look at some of the other guides we have on RideBass. With our guides, you can find everything you need for a perfect and thunderous audio system. 

American Sound Connection Dual 8-Inch SPL Bass Subwoofer Labyrinth Vent Sub Box

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