Loudest Subwoofer Box Design (Massive Bass!)

Norvan Martin

The sound you get from the subwoofer is more related to the design of the box used. Therefore, getting the best subwoofer box design will significantly improve your listening experience. We have prepared this article to help you design the best box for your subwoofers. 

(If you are looking for the best subwoofer box design for deep bass, check out this guide)

Firstly, all subwoofer boxes will have the three main measurements of dimensions – height, width, and length:

subwoofer box width height and depth

1. Single Driver Sealed Subwoofer Box Enclosure

Single driver subwoofer box dimensions

Below is an example of built version of this box:

Single Subwoofer Enclosure

2. 10″ Ported Subwoofer Box Enclosure

10 Inch Ported Subwoofer Box Design

Below is an example of built version of this box:

Ported Subwoofer Box 10 Inch

3. 12″ Ported Subwoofer Box Enclosure

12 Inch Vented Ported Subwoofer Sub Box Enclosure

12 Inch Ported Subwoofer Box Dimensions

What Does Subwoofer Box Mean?

Generally, speakers work through air vibrations. When sound signals are sent into the woofer of the subwoofer, the coil vibrates and sets the diaphragm to vibrate in the same frequency. Similarly, as the speaker cone vibrates, the air around it vibrates with it, and the sound is reproduced. 

When a woofer is used in the open air, the air vibrates loosely, and the sound produced is not as strong. A subwoofer box is an enclosure for the speaker of a subwoofer. The enclosures mainly depend on their material, size, and their shape. 

Our Top 3 Favourite Subs Designs

1.    Skar Audio AR1X10V 

This 19.00 x 14.00 x 14.00 inches subwoofer box weighs 24.2 lbs. It can deliver up to 1200W and supports a frequency response between 30-500 Hz. 

The box is a professional-grade vehicle subwoofer and delivers outstanding performance and high sound quality. It outperforms other subwoofer boxes with its deep bass extension, a deep cabinet extension, and a thin veneer layer located behind the woofer. 

Further, the box is manufactured with aluminum alloy instead of traditional plywood.     

Skar Audio AR1X10V Single 10" Universal Fit Armor...
  • Single 10-inch Universal Fit Armored Series Ported Subwoofer Enclosure
  • Gross Internal Air Space: 1.40 ft³ | Tuned at 38 Hz
  • Engineered to Get Extremely Loud and Low - Featuring a 1.5" Wide Kerf Port Design


  • High-quality material
  • Great sound quality 


  • Expensive 

2.    Skar Audio SK1X12V

This is a 21.25 x 18.75 x 15.25 inches subwoofer box weighing 33.6 lbs. It supports up to 1200W, and the frequency response is 30-500 Hz. 

Made with the latest technology in mind, this subwoofer box is a four-channel sound system that offers the best solution for surround. The design is sleek, low profile, and comes pre-assembled. 

Skar Audio SK1X12V Single 12" Universal Fit Ported...
  • Universal Fit - Single Chamber 12" Ported Subwoofer Enclosure
  • Competition Grade, High Performance Subwoofer Box | Engineered to Sound Incredible
  • Kerf (Rounded) Port Design - Allows for Deep, Accurate, and Responsive Bass


  • Legroom
  • Thick 
  • Value for money 


  • Heavy 


3.    Box E8DV Pro-Series 8” Dual Vented-Divided Subwoofer Enclosure

This box measures 10.5 x 16.6 x 25 inches and offers divided air space. It is designed to deliver maximum bass response and low-frequency reproduction. 

The enclosure is secured with specially Formulated Aliphatic Wood Glue that ensures that the box remains airtight throughout its operation time. 

Atrend Bbox 8” Dual Vented-Divided Subwoofer...
  • DUAL 8 INCH VENTED DIVIDED SUBWOOFER ENCLOSURE: The Bbox 8 inch dual Pro Audio Tuned subwoofer box enclosure...
  • SPECIAL FORMULA: We use Aliphatic wood glue on our 8" subwoofer enclosures to ensure an airtight seal between...
  • HIGH GRADE MDF: Our subwoofer box enclosures are built with a durable MDF that is thick for solid frequency...


  • Dual vented 
  • Excellent bass response 


  • Expensive 

Types Of Subwoofer Boxes 

Subwoofers come in different sizes and designs. The designs mainly depend on the type of enclosure or boxes used. The most commonly used subwoofer boxes are bandpass, ported, and sealed. Let’s look at each of them in detail. 

1.      Ported Subwoofer Enclosures 

Ported boxes are very efficient as they deliver much more volume with less power. The subs are multipurpose and are suitable for both music and movies. They have an opening on the side that is, in most cases, covered by a port with padding. 

  2.      Sealed subwoofer enclosures 

As opposed to ported subwoofer enclosures, sealed subs are fully enclosed without a port. They are much easier to build.

However, they are not as efficient and require more power to drive. On the other hand, although less loud, the sound is more accurate and cleaner than ported subs. 

  3.      Bandpass subwoofer enclosures 

This subwoofer box is similar to a sealed box but has two chambers – a sealed box housing the woofer and a ported enclosure added to the front of it. They are much larger with larger trunk spaces. 

7 Best Loudest Subwoofer Box

1.      Best Overall: Skar Audio SK1X12V

This universal fit single-chamber ported sub box is a competitive grade 12-inch enclosure with a kerf-style port design. It is a high-performance design with a 2.00 ft3 internal air space. 

Although Skar is a new brand, its reputation is on the rise, and this subwoofer box is one of the best the company offers. 

Skar Audio SK1X12V Single 12" Universal Fit Ported...
  • Universal Fit - Single Chamber 12" Ported Subwoofer Enclosure
  • Competition Grade, High Performance Subwoofer Box | Engineered to Sound Incredible
  • Kerf (Rounded) Port Design - Allows for Deep, Accurate, and Responsive Bass


  • Kerf-style port design
  • Universal fit 
  • Riveting low-end frequency 
  • Loud and beefy bass 
  • Easier to wire and install


  • Expensive 

2.      Runner Up: Atrend BBox E12SV

This 12 inches ported sub-box is designed for excellence. The CBC Miter and Dado design construction, in addition to the specially Formulated Aliphatic Wood Glue, ensures the box is rattle and noise-free. 

It is made of durable ¾ inch MDF panels and is strong enough to withstand the deepest bass. In addition, the box comes in a premium carpeted finish featured with red spring-loaded terminal cups to make your connection more seamless. 

Bbox E12SVPro-Series 12” Single Vented Subwoofer...
  • SINGLE 12 INCH VENTED SUBWOOFER ENCLOSURE: The Bbox 12 inch single vented subwoofer box enclosure is designed...
  • SPECIAL FORMULA: We use Aliphatic wood glue on our 12" subwoofer enclosures to ensure an airtight seal between...
  • HIGH GRADE MDF: Our subwoofer box enclosures are built with a durable MDF that is 5/8" thick for solid...


  • Value for money 
  • Potable 
  • High-quality material 
  • Affordable 


  • Small thermal wire gauge size 

3.      Best From Q Power: Q Power QBOMB12VL

Q Power has a reputation for making some of the best subwoofer boxes. Featuring a durable bed liner spray screw-down DELUXE terminal cups and side ports, this enclosure is a high-quality material for the purpose. 

It is made with a ¾ inch of MDF and is single-vented with 1.8 cubic feet of air space. In addition, it comes with a high-quality spring-loaded terminal making it much easier to install.

Q Power Q Bomb Series 12 Inch Ported Car Subwoofer...
  • Built with high-quality enclosure that is built for the deepest bass, featuring a single vented chamber design...
  • Subwoofer enclosure box is constructed with high quality 0.75-inch MDF wood that makes it stronger than any...
  • Set-up and preparation made simple and more efficient, this subwoofer enclosure features a high quality spring...


  • High-quality material
  • Easy to install 
  • Gorgeous finish 


  • Heavy 

4.      Best 10 inch: Skar Audio Single 10” 

The 10-inch subwoofer enclosure from Skar is another top enclosure that can deliver up to 1200 W. It is an all-in-one SDR-loaded bass package that comes with an amplifier. 

Skar Audio Single 10" 1200W Loaded SDR Series...
  • SDR Series Single 10-Inch D2 ohm Loaded Subwoofer Enclosure
  • Peak Power: 1,200 Watts | RMS Power: 600 Watts
  • Pre-wired Internally for a 1 Ohm Final Impedance Load at the Terminals for an Easy Installation


  • All-in-one 


  • Smaller in size 

5.      Best Sturdy Build: PSW 505 

This subwoofer box from Polk delivers high-detail bass. The 12-inch woofer is powered by an in-built amplifier and has a Hi-Roll foam surround for increased flexibility. 

The wide, long slotted vent reduces turbulence, noise, and distortion dramatically. As a result, it delivers a tidal wave of precise and booming bass. 

Polk Audio PSW505 12" Powered Subwoofer - Deep...
  • HEART-THUMPING MUSIC WITH DEEP, POWERFUL BASS – Polk's 12-inch Dynamic Balance Woofer sounds better because...
  • ACCURATE SOUND REPRODUCTIONS – Be it delicate, melodious string music or solid blasts and booms from bombs...


  • Customized bass
  • Rock-solid MDF construction
  • Warranty 

6.      Best From Klipsch: Klipsch Reference R-112SW Subwoofer

This subwoofer enclosure from Klipsch is built to deliver great experiences for both music and movies. It has rich and deep bass. The front-firing slot port is built with exclusive internal flare technology for the best performance. 

Klipsch Reference R-112SW Subwoofer, Black
  • The country of origin is China
  • 12-inch spun copper Cerametallic woofer. All-digital amplifier delivers 600 watts of dynamic power
  • Front-firing slot port with exclusive internal flare technology


  • Front-firing slot port
  • Rich deep bass 


  • Very expensive 

7.     Best Polk Design: Polk Audio PSW10 

This subwoofer enclosure designed and built by Polk uses power port technology and comes with a powered subwoofer. The bass is louder and clearer even when played at high volumes. 

It is easier to integrate with existing systems. 

Polk PSW10 10 Inch Powered Subwoofer Up to 100...
  • POWERED SUBWOOFER FOR EXTRA BASS and PUNCH – A 10-inch Dynamic Balance woofer and a uniquely configured...
  • LOUDER CLEARER SOUND EVEN AT HIGH VOLUME – Enjoy a thrilling yet balanced music experience with rich, deep...
  • DOUBLE THE AMPLIFIER POWER TO 100 Watts of Dynamic Power with its in-built 50-watt RMS amp. Sophisticated...


  • Compact design 
  • Powerful bass
  • Easy to set up


  • Expensive 

Competition Loudest Subwoofer Box Design

Atrend Bbox E12DSV Dual 12” Subwoofer Enclosure

Atrend Bbox Accu-Tuned 10†Single Vented...
  • DUAL 12 INCH SEALED SUBWOOFER ENCLOSURE: The Bbox 12 inch dual sealed Accu-Tuned subwoofer box enclosure is...
  • SPECIAL FORMULA: We use Aliphatic wood glue on our 10" subwoofer enclosures to ensure an airtight seal between...
  • HIGH GRADE MDF: Our subwoofer box enclosures are built with a durable MDF that is 3/4" thick for solid...

This 19 x 30.25 x 13.75 inches SPL-Tuned 12-inch dual vented subwoofer enclosure is an honorary competition loudest design of all time.

Designed for optimum bass response and low-frequency reproduction, this sub-enclosure from Atrend utilizes the CNC Miter and Dado design for airtight precision to deliver a rattle and noise-free musical experience.

DIY Loudest Subwoofer Box Design

L-Ported Subwoofer Box

Making a subwoofer box should be well thought especially if you are making the first attempt. As we explained already, making a DIY subwoofer enclosure requires adequate preparation with the right skills, materials, and tools. The L-ported subwoofer box design is the loudest DIY enclosure you can make for yourself. Try it and enjoy!

What To Consider When Buying A Subwoofer Box

Choosing the correct type of subwoofer box for the loudest bass should be well-considered. The key factors to consider in your choice include enclosure types, materials, available space, size, aesthetic space, and installation process. 

1.      Type Of Enclosure 

Whether choosing ported or sealed enclosures, you have to well understand the kind of sound you are looking for. As we mentioned already, sealed boxes deliver great sound quality and bass response, while ported boxes provide more low-frequency content and are much louder. 

2.      Material 

People use several different types of materials, including MDF which is the most common, PVC and aluminum. MDF is more robust and much more rigid and will therefore last longer. Other materials such as aluminum have the advantage of being lighter weight. 

3.      Size 

If you choose a box for your car or house, consider the size of the box that will fit in the space available. Generally, sealed enclosures are smaller than ported ones. 

4.      Aesthetics 

This is yet another factor many people consider. The subwoofer enclosure should be a good design that appeals to the eye to help improve the aesthetics of your car or living room while delivering the required sound frequencies. 

5.      Installation Process 

Choose the best sub-box that is easier to install. 

Why Do You Need A Loudest Subwoofer Box Design? 

The loudest subwoofer enclosure designs will give you the following advantages: 

  • Maintain the power handling abilities of your subwoofer 
  • Protect the woofer from overheating, especially if you intend to play loud music for long periods 
  • Decrease ground-borne noise 

Make vs Buy Subwoofer Box

If you have some basic carpentry skills, you can easily make a DIY subwoofer box. People only prefer to buy premade because it saves time. However, building your own is much cheaper and gives you more satisfaction when listening to your subwoofer box in action. 

How Do I Build My Subwoofer Box?

Building a good subwoofer box requires proper planning. Here’s the process to follow:

  1. Planning 
  2. Cutting 
  3. Gluing 
  4. Nailing 

Use the right tools to make every stage of the process seamlessly easy. 

Tips For Building The Best Subwoofer Box 

Here are some tips to note when doing a DIY subwoofer box. 

  1. Do not put your subwoofer box against the wall or even between the back seats for the best bass performance. 
  2. Fill the enclosure with polyfill to get more bass response and tighter sound quality.
  3. Use dynamite sounds deadening sheets on the inside of enclosures with larger surface areas to prevent them from rattling. 
  4. If the sub delivers 92 dB or more sensitivity, add some cross-bracing to ensure that too much bass pressure does not cause the box to fall apart.
  5. Ensure you build the box to an appropriate height. 

The Best Way To Test The Subwoofer 

Once you build your subwoofer box, fix the woofer in the enclosure. Once everything is appropriately assembled, turn off your car engine or any other musical instrument in the house and play some high-low bass music as a test to the subwoofer. 


Which subwoofer enclosure should I choose? 

Consider the type of material, size, space available, and mounting depth. For instance, ported enclosures will give you the best results if your sub has an excellent mounting depth. 

How do I calculate how loud the sub will be?

Use the subwoofer loudness equation; Sound pressure level (SPL) = (bass power X speaker cone surface area x box internal volume x 7.2) / 1.76. 

What should I look for in a good enclosure?

A good subwoofer box should have suitable bracing, internal volume, air space, and mounting depth. Also, the enclosure should have a reasonable height. 

Does A Bigger Box Mean More Bass? 

No. A giant box delivers deeper low-frequencies. However, the subwoofer has to work extra hard to meet this demand and can easily get damaged in the process. 


Considering all the best sound performance and bass quality factors, consider choosing from the top 3 loudest designs we described above. However, if you intend to try a DIY enclosure, ensure you assemble all the necessary materials and get the correct information to make the process painless. 

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Norvan Martin is the founder of BoomSpeaker.com. He is a professional Electronics Engineer and is passionate about home theater systems and AV electronics. BoomSpeaker was created as an online hub to share his knowledge and experiences as it relates to home theaters and home audio electronics. My email: [email protected]  Connect on Pinterest and Linkedin