Garage
Shop

Empty Car Subwoofer Enclosures & Boxes for your 2020 CX-3

We carry unloaded sub boxes in shapes and sizes ranging from 8-inch to 15-inch, and angled, truck style, to large vented, sealed or bandpass types.

Your Vehicle


Universal fit Icon
Explore universal-fit product options for your 2020 CX-3
Vehicle-specific solutions are not available in this category.

Update vehicle | Remove vehicle | Vehicle store

Shop by Category


Products in these categories contain items that carry a guarantee to fit your Mazda CX-3 (change vehicle)

Additional Categories


You can shop these categories, but we cannot guarantee fit and/or we do not have products that fit your vehicle.

Top sellers

Loading...
Filters
filter-icon Filters & Sort

Tru Spec Single 8" (1445DF)

Empty Single 8" Vented Prefabricated Enclosure

Single 8” big
Go to item page Right Arrow Icon of Right Arrow

Empty Single 8" Vented Prefabricated Enclosure

• 8" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 0.65 cubic feet
• Compatible for Sundown SA8V2 and similar subwoofers (Sold separately)

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $219.99
-41% $129.99

In stock.

Single 12" Subwoofer Angled Truck or Hatchback Box Enclosure

12ANTCM - CARB Compliant, 5/8" MDF Shallow Sub Enclosure Lined with Polyfil

12ANTCM big
Go to item page Right Arrow Icon of Right Arrow

12ANTCM - CARB Compliant, 5/8" MDF Shallow Sub Enclosure Lined with Polyfil

• 5/8" MDF (Medium Density Fiberboard)
• Perfect for Tight Spaces (trucks/hatchbacks)
• Fits Most 12" Subwoofers
• fully carpeted
• Fully Caulked and Sealed Tight

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

65
List price $95.99
-43% $54.99

In stock

Atrend 15SQKV

Empty Single 15" Vented Enclosure for Kicker L7R and L7S Series Subwoofers

15SQKV big
Go to item page Right Arrow Icon of Right Arrow

Empty Single 15" Vented Enclosure for Kicker L7R and L7S Series Subwoofers

• 15" Single Ported Subwoofer Enclosure
• Fits Kicker L7R and L7S series subwoofers
• 3/4" Medium Density Fiberboard (MDF) construction
• Miter and Dado construction
• Premium carpet finish
• Silver spring loaded terminal cups
• Glued and braced with fasteners
• Total box volume: 3 cubic feet

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

3
List price $119.99
-8% $109.99

In stock

Only 2 Left!

MTX SLH10X2S

Empty Dual 10" Ported Square Sledgehammer Enclosure

SLH10X2S big
Go to item page Right Arrow Icon of Right Arrow

Empty Dual 10" Ported Square Sledgehammer Enclosure

• 10" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 2.18 cubic feet
• Mounting hardware included

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
$189.95

In stock

Atrend 8SQV

Empty Single 8" Vented Subwoofer Enclosure

8SQV big
Go to item page Right Arrow Icon of Right Arrow

Empty Single 8" Vented Subwoofer Enclosure

• 8" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Miter and Dado construction
• Premium black carpet finish
• Silver spring loaded terminal cups
• Glued and braced with fasteners
• Total box volume: 0.54 cubic feet

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

24
List price $99.99
-22% $77.95

In stock

Only 1 Left!

Belva BBX210BK (BLACK)

1.42 Total Cu Ft - Dual 10" 3/4" MDF Ported Subwoofer Box Enclosure with Custom Black Baffle

BBX210BK big
Go to item page Right Arrow Icon of Right Arrow

1.42 Total Cu Ft - Dual 10" 3/4" MDF Ported Subwoofer Box Enclosure with Custom Black Baffle

• 10" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard Construction
• Satin Black Panel
• Durable Black Carpet
• Pre-Lined with Poly-Fil
• Gold Speaker Terminals
• Total Box Volume: 1.42 Cubic Feet

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

18
List price $199.99
-40% $119.99

In stock

Only 2 Left!

Atrend 12JLX3SV (Open Box, Great)

Empty Single 12" Vented Enclosure for JL Audio WX-W3 Series Subwoofers

12JLX3SV big
Go to item page Right Arrow Icon of Right Arrow

Empty Single 12" Vented Enclosure for JL Audio WX-W3 Series Subwoofers

• 12" Single Ported Subwoofer Enclosure
• Fits JL Audio WX-W3 series subwoofers
• 3/4" Medium Density Fiberboard (MDF) construction
• Miter and Dado construction
• Premium charcoal carpet finish
• Silver spring loaded terminal cups
• Glued and braced with fasteners
• Total box volume: 1.5 cubic feet

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $154.99
-39% $94.64

In stock

Only 1 Left!

• 12" Single Ported Subwoofer Enclosure
• Fits JL Audio WX-W3 series subwoofers
• 3/4" Medium Density Fiberboard (MDF) construction
• Miter and Dado construction
• Premium charcoal carpet finish
• Silver spring loaded terminal cups
• Glued and braced with fasteners
• Total box volume: 1.5 cubic feet

Atrend 10SAL

Empty Single 10" Medium Sealed Subwoofer Enclosure

10SAL big
Go to item page Right Arrow Icon of Right Arrow

Empty Single 10" Medium Sealed Subwoofer Enclosure

• 10" Single Medium Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Miter and Dado construction
• Premium carpet finish
• Silver spring loaded terminal cups
• Glued and braced with fasteners
• Total box volume: 1 cubic feet

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

7
List price $79.99
-13% $69.99

In stock

MTX SLH10

Empty Single 10" Ported Sledgehammer Enclosure

SLH10 big
Go to item page Right Arrow Icon of Right Arrow

Empty Single 10" Ported Sledgehammer Enclosure

• 10" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.19 cubic feet
• Mounting hardware included

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
$139.95

In stock

Only 3 Left!

Atrend 12SA

Empty Single 12" Small Sealed Subwoofer Enclosure

12SA big
Go to item page Right Arrow Icon of Right Arrow

Empty Single 12" Small Sealed Subwoofer Enclosure

• 12" Single Small Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Miter and Dado construction
• Premium carpet finish
• Silver spring loaded terminal cups
• Glued and braced with fasteners
• Total box volume: 0.38 cubic feet

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

12
List price $79.99
-6% $74.95

In stock

Only 2 Left!

Atrend 12SQKV

Empty Single 12" Vented Enclosure for Kicker L7R and L7S Series Subwoofers

12SQKV big
Go to item page Right Arrow Icon of Right Arrow

Empty Single 12" Vented Enclosure for Kicker L7R and L7S Series Subwoofers

• 12" Single Ported Subwoofer Enclosure
• Fits Kicker L7R and L7S series subwoofers
• 3/4" Medium Density Fiberboard (MDF) construction
• Miter and Dado construction
• Premium carpet finish
• Silver spring loaded terminal cups
• Glued and braced with fasteners
• Total box volume: 1.85 cubic feet

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

4
List price $129.99
-23% $99.99

In stock

Tru Spec 4X8SUBP (1541YTM)

Empty Quad 8" Vented Prefabricated Enclosure

4x8supb big
Go to item page Right Arrow Icon of Right Arrow

Empty Quad 8" Vented Prefabricated Enclosure

• 8" Quad Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 3.50 cubic feet
• Computer-designed CNC cut

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

3
List price $399.99
-25% $299.99

In stock.

MTX SLH10X2

Empty Dual 10" Ported Sledgehammer Enclosure

SLH10X2 big
Go to item page Right Arrow Icon of Right Arrow

Empty Dual 10" Ported Sledgehammer Enclosure

• 10" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 2.38 cubic feet
• Mounting hardware included

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$209.95

In stock

Only 1 Left!

Atrend 10SVR - Red Carbon Fiber

Empty Single 10" Vented Subwoofer Enclosure (Red)

10SVR - RED carbon fiber big
Go to item page Right Arrow Icon of Right Arrow

Empty Single 10" Vented Subwoofer Enclosure (Red)

• 10" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Premium plush black carpet finish
• Carbon fiber pattern
• Signature miter and dado construction
• Bonded using proprietary trick glue
• Total box volume: 1.75 cubic feet

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
List price $199.99
-50% $99.99

In stock

Only 3 Left!

Tru Spec Single 6.5” (1444OS)

Empty Single 6.5" Vented Prefabricated Enclosure

Single 6.5” big
Go to item page Right Arrow Icon of Right Arrow

Empty Single 6.5" Vented Prefabricated Enclosure

• 6.5" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 0.30 cubic feet
• Compatible for Sundown SA65V2 and similar subwoofers (Sold separately)

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $199.99
-45% $109.99

In stock.

Atrend 12JLX3SV

Empty Single 12" Vented Enclosure for JL Audio WX-W3 Series Subwoofers

12JLX3SV big
Go to item page Right Arrow Icon of Right Arrow

Empty Single 12" Vented Enclosure for JL Audio WX-W3 Series Subwoofers

• 12" Single Ported Subwoofer Enclosure
• Fits JL Audio WX-W3 series subwoofers
• 3/4" Medium Density Fiberboard (MDF) construction
• Miter and Dado construction
• Premium charcoal carpet finish
• Silver spring loaded terminal cups
• Glued and braced with fasteners
• Total box volume: 1.5 cubic feet

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

List price $154.99
-13% $135.20

In stock

Only 1 Left!

Used from: $94.64

Atrend 10DS

Empty Dual 10" Small Sealed Subwoofer Enclosure

10DS big
Go to item page Right Arrow Icon of Right Arrow

Empty Dual 10" Small Sealed Subwoofer Enclosure

• 10" Dual Small Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Miter and Dado construction
• Premium carpet finish
• Silver spring loaded terminal cups
• Glued and braced with fasteners
• Total box volume: 1.54 cubic feet

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

6
List price $119.99
-17% $99.99

In stock

Only 1 Left!

Atrend 12SVR - Red Carbon Fiber

Empty Single 12" Vented Subwoofer Enclosure (Red)

12SVR - RED carbon fiber big
Go to item page Right Arrow Icon of Right Arrow

Empty Single 12" Vented Subwoofer Enclosure (Red)

• 12" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Premium plush black carpet finish
• Carbon fiber pattern
• Signature miter and dado construction
• Bonded using proprietary trick glue
• Total box volume: 2.28 cubic feet

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
List price $214.99
-37% $134.99

In stock

Only 1 Left!

MTX SLH12X2S

Empty Dual 12" Ported Square Sledgehammer Enclosure

SLH12X2S big
Go to item page Right Arrow Icon of Right Arrow

Empty Dual 12" Ported Square Sledgehammer Enclosure

• 12" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 2.66 cubic feet
• Mounting hardware included

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

$199.95

In stock

Only 2 Left!

MTX SLH12S

Empty Single 12" Ported Square Sledgehammer Enclosure

SLH12S big
Go to item page Right Arrow Icon of Right Arrow

Empty Single 12" Ported Square Sledgehammer Enclosure

• 12" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.65 cubic feet
• Mounting hardware included

shipping truck icon Free shipping in USA. Provide zip for delivery date.

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

1
$159.95

Available

Ships in 10-14 days

Items per page: 20

    Clear all

    All About

    Empty Car Subwoofer Enclosures & Boxes
    Empty Car Subwoofer Enclosures & Boxes Frequently Asked Questions (FAQ)
    An empty car subwoofer enclosure, also known as a subwoofer box or cabinet, is a specialized enclosure designed to house a subwoofer driver. Unlike pre-loaded enclosures that come with a subwoofer already installed, empty enclosures allow you to select and install the subwoofer of your choice. This gives you the flexibility to choose a subwoofer that best suits your preferences and audio needs. Empty subwoofer enclosures are available in various sizes and designs, such as sealed, ported, and bandpass, allowing you to match the enclosure type with your desired bass response. If you already have a subwoofer or prefer a specific brand/model, an empty enclosure is the perfect solution to ensure a custom-tailored audio setup with optimal sound quality and bass performance.
    Selecting the right size of an empty car subwoofer enclosure is crucial for achieving the best audio performance. The enclosure's size is typically determined by the subwoofer's recommended air space, as specified by the manufacturer. It's essential to match the subwoofer's requirements with the available space in your vehicle. Measure the area where you plan to install the enclosure, considering the depth, width, and height. Ensure that the enclosure fits securely and does not obstruct any other vehicle components. If you are unsure about the appropriate size, consult with a car audio expert or refer to the subwoofer's specifications provided by the manufacturer. Choosing the correct enclosure size ensures that the subwoofer operates efficiently, delivering accurate and powerful bass without distortion.
    While empty car subwoofer enclosures are designed to be versatile and accommodate various subwoofers, there are still compatibility considerations to keep in mind. The enclosure's size and design must match the subwoofer's recommended air space to ensure proper operation and sound quality. Some subwoofers may require a sealed enclosure, while others work best in a ported or bandpass design. It's essential to check the subwoofer's specifications to determine the ideal enclosure type and size for optimal performance. Additionally, consider the subwoofer's power handling capabilities and impedance rating to ensure it matches your amplifier's output and impedance load. If you have any doubts about compatibility, seek advice from car audio professionals who can recommend the best subwoofer options for your chosen empty enclosure.
    Using an empty car subwoofer enclosure offers several advantages over pre-loaded enclosures. First, you have the freedom to choose any subwoofer that suits your audio preferences and power requirements. This means you can select a premium-quality subwoofer or one with specific performance characteristics that match your desired audio setup. Additionally, empty enclosures allow for more customization in terms of enclosure type (sealed, ported, bandpass) and size, enabling you to fine-tune the bass response to your liking. Installing a subwoofer in an empty enclosure also allows for easier upgrades or replacements in the future without changing the entire enclosure. Overall, using an empty car subwoofer enclosure grants you greater flexibility and control over your car audio system, resulting in a personalized and optimized audio experience.
    The ease of installing an empty car subwoofer enclosure can vary depending on your experience with car audio installations and the complexity of your vehicle's interior. Basic installations, such as placing the enclosure in the trunk or rear cargo area, can be relatively straightforward for those with some DIY skills. However, more complex installations, such as custom mounting or integrating the enclosure into the vehicle's interior, may require professional assistance to ensure proper fitment and wiring. It's crucial to properly secure the enclosure to prevent any movement or rattling while driving. If you are unsure about the installation process or lack experience with car audio installations, seeking help from a certified car audio installer is recommended. They have the expertise and tools to install the empty subwoofer enclosure correctly, maximizing its performance and ensuring a seamless integration into your vehicle's audio system.

    If you're in search of the perfect Empty Car Subwoofer Enclosures & Boxes to build a custom subwoofer setup that suits your preferences, look no further. Explore our extensive collection of empty subwoofer enclosures and boxes to find the best quality options that will allow you to create the ultimate bass experience in your vehicle. Don't compromise on sound quality - shop now and discover the ideal empty car subwoofer enclosure that will take your car audio to new heights!

    Empty car subwoofer enclosures and boxes provide the foundation for building a custom bass system that caters to your specific audio preferences. These enclosures are designed to house subwoofers of various sizes, giving you the flexibility to choose the subwoofer that best suits your desired bass response and power handling requirements.

    One of the main advantages of using empty car subwoofer enclosures and boxes is the freedom to select the type of subwoofer and amplifier combination that perfectly matches your audio preferences. Whether you're looking for deep and thunderous bass or tight and punchy lows, having an empty enclosure allows you to fine-tune your setup to achieve your desired sound.

    Additionally, empty car subwoofer enclosures and boxes are often made from high-quality materials such as MDF (Medium-Density Fiberboard) or fiberglass, providing excellent durability and resonance control. This ensures that your custom bass system performs optimally and delivers clear, distortion-free bass.

    At Sonic Electronix, we are dedicated to helping our visitors find the ideal Empty Car Subwoofer Enclosures & Boxes that suit their unique requirements. Our knowledgeable staff is always ready to provide expert guidance and assistance in selecting the perfect enclosure for your specific subwoofer and vehicle. Whether you need advice on choosing the right size, type, or material for your empty enclosure, our experienced team is here to help.

    For personalized assistance, feel free to call our customer service team at 1-502-200-8010. Our audio experts are passionate about car audio and are committed to helping you achieve the best possible bass setup in your vehicle.

    why-shoping-with-sonic

    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
    Why Shop With Us?
    Save up to 10 different vehicles in your garage
    Vehicle
    Store
    Delete

    2020 Mazda CX-3

    2016 Audi S6

    1973 Cadillac DeVille

    2006 Ford Taurus

    1992 Mercury Sable

    2000 Audi TT

    2017 Subaru Impreza

    2000 Saturn SL

    2008 Ford Taurus X

    1982 Audi 5000

    Add vehicle Clear all vehicles
    Where to find vehicle info
    Are you sure you want to clear your garage?
    This action cannot be undone. Confirm
    This category was not designed for products.
    If you continue, you will be redirected to a category customized for your vehicle. Continue
    Loading...
    Identify your vehicle and submodel details
    • Owner's manual
    • Vehicle's insurance card
    • Vehicle registration
    • Vehicle produced after 2005: Inside driver's side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
    Car Info Side Door Icon
    Vehicle Registration Icon
    Vehicle Insurance Icon

    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
    • You get the correct accessories the first time

    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.