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All Custom-fit Subwoofer Boxes for your 1978 XJS close

Shop custom-fit, vehicle-specific subwoofer boxes guaranteed to fit your car, truck, or SUV. Choose from loaded, amplified, and powered solutions.

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Atrend A152-10

Empty Dual 10" Sealed Subwoofer Enclosure for select 1997-2007 vehicles from GMC, Chevrolet

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Empty Dual 10" Sealed Subwoofer Enclosure for select 1997-2007 vehicles from GMC, Chevrolet

• 10" Dual Sealed Subwoofer Enclosure
• Built for select 1997-2007 vehicles from GMC, Chevrolet
• 3/4" Medium Density Fiberboard (MDF) construction
• Custom down-firing fit under rear driver side seat
• Premium, ultra-tough coat spray-liner finish
• Constructed using specially formulated aliphatic wood glue
• Total box volume: 2.44 cubic feet

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No Fit Icon Doesn't fit your XJS

2
List price $319.99
-29% $225.99

In stock

Only 2 Left!

NVX Empty BOOST Box - 2006-2013 Chevrolet Corvette - UBE-GM-VETC6

For select 2006-2013 Corvette - Single 10" Fiberglass Empty BOOST Sealed Enclosure

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For select 2006-2013 Corvette - Single 10" Fiberglass Empty BOOST Sealed Enclosure

• Custom Fit Empty Single 10" BOOST Sealed Enclosure
• Compatible with select 2006-2013 Corvette
• Made with hand-laid fiberglass shell covered in Carpet
• Total box volume: .60 cubic feet

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No Fit Icon Doesn't fit your XJS

List price $275.99
-9% $249.99

In stock

Atrend A151-12CP

Empty Single 12" Sealed Rear Underseat Enclosure for select 1999-2007 vehicles from GMC, Chevrolet

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Empty Single 12" Sealed Rear Underseat Enclosure for select 1999-2007 vehicles from GMC, Chevrolet

• 12" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 0.93 cubic feet
• Compatible with select 1999-2007 vehicles from GMC, Chevrolet

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No Fit Icon Doesn't fit your XJS

8
List price $104.95
-9% $94.99

In stock

Atrend U-8CPQV

Empty Quad 8" Vented Underseat Truck Enclosure for select 2007-2023 Silverado 2500 HD / 3500 HD / 1500 / 1500 LD and Sierra 3500 HD / 2500 HD

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Empty Quad 8" Vented Underseat Truck Enclosure for select 2007-2023 Silverado 2500 HD / 3500 HD / 1500 / 1500 LD and Sierra 3500 HD / 2500 HD

• 8" Quad Ported Truck Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Premium charcoal carpet finish
• Total box volume: 6.08 cubic feet
• Compatible with select 2007-2023 Silverado 2500 HD / 3500 HD / 1500 / 1500 LD and Sierra 3500 HD / 2500 HD

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No Fit Icon Doesn't fit your XJS

$205.40

In stock

Only 1 Left!

Atrend U-8DV

Empty Dual 8” Vented Enclosure for select 2008-2023 Sierra and Silverado 3500 HD / 1500 / 2500 HD

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Empty Dual 8” Vented Enclosure for select 2008-2023 Sierra and Silverado 3500 HD / 1500 / 2500 HD

• 8" Dual Ported Subwoofer Enclosure
• 1" Medium Density Fiberboard (MDF) construction
• Total box volume: 2.40 cubic feet
• Compatible with select 2008-2023 Sierra and Silverado 3500 HD / 1500 / 2500 HD

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No Fit Icon Doesn't fit your XJS

$309.40

In stock

Only 1 Left!

Atrend A341-10CP

Empty Single 10" Sealed Rear Underseat Enclosure for select 2009-2020 vehicles from Ford

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Empty Single 10" Sealed Rear Underseat Enclosure for select 2009-2020 vehicles from Ford

• 10" Single Sealed Subwoofer Enclosure
• 5/8" Medium Density Fiberboard (MDF) construction
• Total box volume: 0.8 cubic feet
• Compatible with select 2009-2020 vehicles from Ford

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No Fit Icon Doesn't fit your XJS

2
List price $119.99
-17% $99.95

Available

Ships in 10-14 days

Atrend A704-12

Empty Dual 12" Sealed Rear Enclosure for select 2007-2018 Wrangler and Wrangler (JK)

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Empty Dual 12" Sealed Rear Enclosure for select 2007-2018 Wrangler and Wrangler (JK)

• 12" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.6 cubic feet
• Compatible with select 2007-2018 Wrangler and Wrangler (JK)

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No Fit Icon Doesn't fit your XJS

List price $399.99
-10% $361.40

In stock

Atrend A151-10CP

Empty Single 10" Sealed Rear Underseat Enclosure for select 1999-2007 vehicles from GMC, Chevrolet

A151-10CP big
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Empty Single 10" Sealed Rear Underseat Enclosure for select 1999-2007 vehicles from GMC, Chevrolet

• 10" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 0.93 cubic feet
• Compatible with select 1999-2007 vehicles from GMC, Chevrolet

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No Fit Icon Doesn't fit your XJS

3
$99.99

In stock

Atrend A362-10CP

Empty Dual 10" Sealed Rear Enclosure for select 2009-2019 F-150

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Empty Dual 10" Sealed Rear Enclosure for select 2009-2019 F-150

• 10" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.6 cubic feet
• Compatible with select 2009-2019 F-150

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No Fit Icon Doesn't fit your XJS

5
$159.99

Available

Ships in 10-14 days

Atrend A202-1019

Empty Dual 10" Sealed Rear Underseat Truck Enclosure for select 2002-2018 Ram 3500 / 1500 / 2500 and 1500

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Empty Dual 10" Sealed Rear Underseat Truck Enclosure for select 2002-2018 Ram 3500 / 1500 / 2500 and 1500

• 10" Dual Sealed Truck Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Premium charcoal carpet finish
• Total box volume: 2 cubic feet
• Compatible with select 2002-2018 Ram 3500 / 1500 / 2500 and 1500

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No Fit Icon Doesn't fit your XJS

$364.99

In stock

Only 2 Left!

• 10" Dual Sealed Truck Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Premium charcoal carpet finish
• Total box volume: 2 cubic feet
• Compatible with select 2002-2018 Ram 3500 / 1500 / 2500 and 1500

Atrend A202-12CPV

Empty Dual 12” Vented Rear Underseat Enclosure for select 2002-2018 Ram 1500 / 3500 / 2500 and 1500

A202-12CPV big
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Empty Dual 12” Vented Rear Underseat Enclosure for select 2002-2018 Ram 1500 / 3500 / 2500 and 1500

• 12" Dual Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Premium charcoal carpet finish
• Total box volume: 1.9 cubic feet
• Compatible with select 2002-2018 Ram 1500 / 3500 / 2500 and 1500

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No Fit Icon Doesn't fit your XJS

List price $409.99
-13% $356.20

Available

Ships in 10-14 days

NVX Empty BOOST Box - 2004-2018 Nissan Titan - VE-NIS-TTNCKCG1-D10S

For select 2004-2018 Titan and Titan XD Crew and King Cab Trucks - Dual 12" Empty BOOST Sealed Truck Enclosure

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For select 2004-2018 Titan and Titan XD Crew and King Cab Trucks - Dual 12" Empty BOOST Sealed Truck Enclosure

• Custom Fit Empty Dual 10" BOOST Sealed Truck Enclosure
• Compatible with select 2004-2018 Titan and Titan XD
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.50 cubic feet

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No Fit Icon Doesn't fit your XJS

1
List price $179.99
-22% $139.99

In stock

Only 1 Left!

Atrend A192-10CP

Empty Dual 10" Sealed Rear Underseat Enclosure for select 2002-2014 vehicles from Chevrolet, Cadillac

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Empty Dual 10" Sealed Rear Underseat Enclosure for select 2002-2014 vehicles from Chevrolet, Cadillac

• 10" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.6 cubic feet
• Compatible with select 2002-2014 vehicles from Chevrolet, Cadillac

No Fit Icon Doesn't fit your XJS

5
List price $204.99
-17% $169.99

• 10" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.6 cubic feet
• Compatible with select 2002-2014 vehicles from Chevrolet, Cadillac

NVX Empty BOOST Box - 2014-2019 Highlander and Highlander Hybrid - UBE-TOY-HIG3

For select 2014-2019 Highlander Hybrid and Highlander - Single 10" Empty BOOST Sealed Enclosure

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For select 2014-2019 Highlander Hybrid and Highlander - Single 10" Empty BOOST Sealed Enclosure

• Custom Fit Empty Single 10" BOOST Sealed Enclosure
• Compatible with select 2014-2019 Highlander Hybrid and Highlander
• Made with hand-laid fiberglass shell covered in Carpet
• Total box volume: 0.54 cubic feet

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No Fit Icon Doesn't fit your XJS

2
List price $251.99
-17% $209.99

In stock

Atrend A219-8CPDV

Empty Dual 8" Vented Rear Truck Enclosure for select 2019-2023 3500 and 2500 and 1500

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Empty Dual 8" Vented Rear Truck Enclosure for select 2019-2023 3500 and 2500 and 1500

• 8" Dual Ported Truck Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Premium charcoal carpet finish
• Total box volume: 1.2 cubic feet
• Compatible with select 2019-2023 3500 and 2500 and 1500

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No Fit Icon Doesn't fit your XJS

$205.40

Available

Ships in 10-14 days

Atrend A703-12V

Empty Single 12" Vented Front Enclosure for select 2007-2024 Wrangler (JL) and Wrangler and Wrangler (JK) with Amplifier Shelf

A703-12V big
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Empty Single 12" Vented Front Enclosure for select 2007-2024 Wrangler (JL) and Wrangler and Wrangler (JK) with Amplifier Shelf

• 12" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.75 cubic feet
• Compatible with select 2007-2024 Wrangler (JL) and Wrangler and Wrangler (JK)

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No Fit Icon Doesn't fit your XJS

List price $449.99
-20% $361.40

Available

Ships in 10-14 days

SSV Works JJK-DS10U

Empty Single 10" Sealed Rear Driver Side Enclosure for select 2007-2018 vehicles from Jeep

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Empty Single 10" Sealed Rear Driver Side Enclosure for select 2007-2018 vehicles from Jeep

• 10" Single Sealed Subwoofer Enclosure
• Durable 3/4" Fiberglass construction
• Compatible with select 2007-2018 vehicles from Jeep

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No Fit Icon Doesn't fit your XJS

$429.99

In stock.

Atrend A181-10CPV

Empty Single 10" Vented Rear Underseat Enclosure for select 2007-2021 Silverado 1500 / 3500 HD / 2500 HD / 1500 LD / 1500 HD and Sierra 1500 / 2500 HD / 1500 Denali / 3500 HD / 1500 HD and Sierra Denali

A181-10CPV big
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Empty Single 10" Vented Rear Underseat Enclosure for select 2007-2021 Silverado 1500 / 3500 HD / 2500 HD / 1500 LD / 1500 HD and Sierra 1500 / 2500 HD / 1500 Denali / 3500 HD / 1500 HD and Sierra Denali

• 10" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 0.83 cubic feet
• Compatible with select 2007-2021 Silverado 1500 / 3500 HD / 2500 HD / 1500 LD / 1500 HD and Sierra 1500 / 2500 HD / 1500 Denali / 3500 HD / 1500 HD and Sierra Denali

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No Fit Icon Doesn't fit your XJS

2
List price $164.99
-32% $112.99

In stock

Only 1 Left!

Atrend A372-10CP

Empty Dual 10" Sealed Rear Enclosure for select 2004-2008 F-150 and F-150 Heritage

A372-10CP big
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Empty Dual 10" Sealed Rear Enclosure for select 2004-2008 F-150 and F-150 Heritage

• 10" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.4 cubic feet
• Compatible with select 2004-2008 F-150 and F-150 Heritage

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No Fit Icon Doesn't fit your XJS

7
$154.95

Available

Ships in 10-14 days

Lowest price in 30 days

Atrend A201-10V

Empty Single 10" Vented Underseat Enclosure for select 2002-2018 Ram 1500 and 1500

A201-10V big
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Empty Single 10" Vented Underseat Enclosure for select 2002-2018 Ram 1500 and 1500

• 10" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 2.3 cubic feet
• Compatible with select 2002-2018 Ram 1500 and 1500

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No Fit Icon Doesn't fit your XJS

List price $319.99
-25% $238.99

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    FAQ Frequently asked questions in All Custom-fit Subwoofer Boxes


    Custom-fit Subwoofer Boxes Frequently Asked Questions (FAQ)
    Custom-fit subwoofer boxes are specially designed enclosures that are tailored to fit specific vehicle makes and models. These boxes are crafted to utilize the available space in your vehicle most efficiently, ensuring a seamless integration that doesn't sacrifice valuable trunk or cargo space. They provide several advantages, including optimal bass response, enhanced audio quality, and a polished, factory-like appearance. By choosing a custom-fit subwoofer box, you can enjoy a clean and professional-looking installation that complements your vehicle's interior while delivering impressive bass performance. These boxes eliminate the need for complex fabrication work and customization, making them an excellent choice for those seeking hassle-free, high-quality bass solutions.
    Determining the availability of a custom-fit subwoofer box for your vehicle is straightforward. Most reputable manufacturers and retailers provide online tools or compatibility guides. You typically input your vehicle's make, model, and sometimes the year, and the tool will display compatible options. Alternatively, you can reach out to the manufacturer or retailer directly for assistance. They can verify compatibility and guide you in selecting the appropriate custom-fit subwoofer box for your vehicle.
    Custom-fit subwoofer boxes are designed with ease of installation in mind, making them suitable for DIY enthusiasts. They come with clear instructions and mounting hardware, simplifying the installation process. In most cases, you can secure them to the vehicle using basic hand tools. However, the level of installation difficulty can vary depending on your vehicle's make and model, your technical expertise, and the complexity of your audio system. Some installations may require minor modifications or the removal of existing components. If you're not comfortable with these tasks, or if your vehicle has unique challenges, it's advisable to seek professional installation. Professionals can ensure a secure and seamless integration while avoiding potential issues.
    While custom-fit subwoofer boxes are designed to accommodate various subwoofer sizes and styles, it's essential to choose a subwoofer that matches the box's specifications and your audio preferences. Consider factors such as the subwoofer's size, power handling, and impedance. Ensure that the chosen subwoofer complements the custom-fit box for optimal performance. Before making a selection, consult the box's specifications and guidelines provided by the manufacturer or retailer. This information will help you choose a compatible subwoofer that maximizes the box's potential, resulting in excellent bass output and audio quality.
    Custom-fit subwoofer boxes offer several advantages over generic, universal boxes: Precise Fit: Custom-fit boxes are precisely designed to match your vehicle's dimensions, ensuring a seamless and unobtrusive installation without the need for extensive modifications or wasted space. Enhanced Audio Quality: These boxes are engineered for optimal bass response, providing better sound quality and bass performance compared to generic enclosures. Aesthetically Pleasing: Custom-fit boxes blend seamlessly with your vehicle's interior, creating a clean, factory-like appearance. Space Efficiency: They maximize available space, allowing you to retain trunk or cargo capacity. Simplified Installation: Custom-fit boxes come with specific mounting hardware and instructions, making installation more accessible, even for DIY enthusiasts. Ultimately, custom-fit subwoofer boxes offer a superior solution for those seeking the best possible bass performance and aesthetics in their vehicle audio systems.

    All About All Custom-fit Subwoofer Boxes


    If you're on the hunt for the perfect Custom Subwoofer Boxes to elevate your car audio experience, look no further. Explore our extensive collection of custom subwoofer enclosures to find the best quality boxes that will enhance the bass response and overall audio performance in your vehicle. Don't settle for generic solutions - shop now and discover the perfect custom subwoofer box that will take your car audio to the next level!

    Custom Subwoofer Boxes are specifically designed enclosures that house subwoofers in a way that maximizes their performance and enhances bass response. One of the main advantages of using custom subwoofer boxes is the ability to tailor the enclosure to the specific subwoofer's requirements, ensuring optimal performance. Generic, universal enclosures may not provide the ideal internal volume and dimensions for your subwoofer, leading to subpar bass and audio quality.

    With custom subwoofer boxes, you can achieve precise tuning and alignment, which results in tighter, punchier bass and minimal distortion. These enclosures are typically made from high-quality materials that offer excellent durability and resonance control. Additionally, custom boxes are designed to fit seamlessly into your vehicle's available space, maximizing the use of available area without compromising on sound quality.

    At Sonic Electronix, we understand the importance of having the right custom subwoofer box for your specific subwoofer model and vehicle. That's why we offer a wide selection of custom enclosures to suit various subwoofer sizes and vehicle models.

    Assistance in Finding the Best Custom Subwoofer Boxes

    At Sonic Electronix, we take pride in providing exceptional customer service to help our visitors find the perfect Custom Subwoofer Boxes that match their needs. Our knowledgeable staff is here to assist you with any questions you may have about the products or their compatibility with your subwoofer and vehicle. Whether you need advice on selecting the appropriate enclosure type or require guidance on optimizing your bass setup, our expert team is ready 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 audio setup in your vehicle.

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    • Vehicle produced after 2005: Inside driver's side door
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    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.