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  1. Home
  2. Car Audio & Electronics
  3. Car Subwoofers
  4. Custom-fit Subwoofer Boxes
  5. Empty Custom-fit Subwoofer Boxes

Empty Custom-fit Subwoofer Boxes for your 2015 A4 Quattro close

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Number of Subwoofers
This value represents the number of subwoofers that the enclosure accommodates or that are included in the package or bundled kit.
Box Type
Represents the style of the enclosure. Be sure to purchase the appropriate enclosure type and internal volume that will be compatible with your subwoofer's recommendation.

Sealed - Sealed boxes are those that have no holes or vents in it. The only hole in a sealed box is where the subwoofer is installed. Smaller sealed boxes require more power than a larger sealed box. They provide a tight, accurate bass, while the larger sealed enclosures provide a "boomier" and louder bass.

Ported / Vented - Ported/Vented Enclosures provide an even boomier, louder bass, but less accurate then a small, sealed box. Ported enclosures typically require more airspace per sub and also less power output from an amplifier to perform correctly.

Bandpass - Bandpass enclosures make subwoofers perform efficiently, but loose. The bass is not as "boomy" as a ported enclosure nor as punchy as a sealed enclosure. Bandpass enclosures work well with lower to mid-level subwoofers.
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
Subwoofer Cutout Shape
This is the shape of the enclosures cutout hole and defines the style of subwoofer that can be installed.
Box Volume (Each Chamber)
This is the total air space inside each chamber of the empty subwoofer enclosure. By matching this value with the recommended air space of the subwoofer, you will be able to know if the subwoofer will match this box.
Maximum Speaker Depth
Your subwoofer or speaker must not exceed this dimension in order to properly mount in this enclosure.
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DS18 EBM-FFPUFCG-4X8

Empty Quad 8" Vented Underseat Enclosure for select 2009-2024 F-150

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DS18 EBM-FFPUFCG-4X8

Empty Quad 8" Vented Underseat Enclosure for select 2009-2024 F-150

• Empty 8" Quad Ported Subwoofer Enclosure
• 3/4" medium density fiberboard construction with sprayliner finish
• Vented front-firing design enhances sound projection
• Under seat enclosure mounting

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$479.95

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DS18 EXCL-TUNDRABASS1

Empty Dual 10" Sealed Rear Underseat Enclosure for select 2022-2025 Tundra

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DS18 EXCL-TUNDRABASS1

Empty Dual 10" Sealed Rear Underseat Enclosure for select 2022-2025 Tundra

• 10" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1 cubic feet
• Downward firing sealed underseat enclosure
• DS18 logo acrylic badge with LED Dream lights

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$1,559.95

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Ships in 10-14 days

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DS18 EXCL-FORDBASS.FF/17-UP

Empty Quad 8" Sealed Front Firing Enclosure for select 2017-2024 F-150 and F-350 Super Duty and F-250 Super Duty

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DS18 EXCL-FORDBASS.FF/17-UP

Empty Quad 8" Sealed Front Firing Enclosure for select 2017-2024 F-150 and F-350 Super Duty and F-250 Super Duty

• 8" Quad Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.2 cubic feet
• Forward/front firing sealed enclosure construction
• Integrated Dream Chasing Lights function

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$1,559.95

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DS18 EXCL-SILVERADOBASS.DF/14-21

Empty Dual 10" Sealed Down Firing Enclosure for select 2014-2021 Silverado 1500

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DS18 EXCL-SILVERADOBASS.DF/14-21

Empty Dual 10" Sealed Down Firing Enclosure for select 2014-2021 Silverado 1500

• 10" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1 cubic feet
• Downward firing sealed enclosure construction
• Integrated Dream Chasing Lights function

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$1,559.95

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DS18 EXCL-RAMBASS.DF/21-UP

Empty Dual 10" Sealed Down Firing Enclosure for select 2021-2024 3500 and 2500 and 1500

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DS18 EXCL-RAMBASS.DF/21-UP

Empty Dual 10" Sealed Down Firing Enclosure for select 2021-2024 3500 and 2500 and 1500

• 10" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1 cubic feet
• Downward firing sealed enclosure construction
• Integrated Dream Chasing Lights function

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$1,559.95

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DS18 EXCL-SILVERADOBASS.DF/22-UP

Empty Dual 10" Sealed Rear Underseat Enclosure for select 2022-2024 Silverado 1500

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DS18 EXCL-SILVERADOBASS.DF/22-UP

Empty Dual 10" Sealed Rear Underseat Enclosure for select 2022-2024 Silverado 1500

• 10" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1 cubic feet
• Downward firing sealed enclosure construction
• Integrated Dream Chasing Lights function

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$1,559.95

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Atrend A101-10CP

Empty Single 10" Sealed Rear Underseat Enclosure for select 1988-1999 vehicles from Chevrolet, GMC

A101-10CP big Out of stock
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Atrend A101-10CP

Empty Single 10" Sealed Rear Underseat Enclosure for select 1988-1999 vehicles from Chevrolet, GMC

• 10" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.0 cubic feet
• Compatible with select 1988-1999 vehicles from Chevrolet, GMC

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13
List price $119.99
-17% $99.99
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• 10" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.0 cubic feet
• Compatible with select 1988-1999 vehicles from Chevrolet, GMC

Atrend A201-10CP

Empty Single 10" Sealed Rear Underseat Enclosure for select 2002-2019 Ram 3500 / 2500 / 1500 and 1500 and 1500 Classic

A201-10CP big Out of stock
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Atrend A201-10CP

Empty Single 10" Sealed Rear Underseat Enclosure for select 2002-2019 Ram 3500 / 2500 / 1500 and 1500 and 1500 Classic

• 10" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 0.85 cubic feet
• Compatible with select 2002-2019 Ram 3500 / 2500 / 1500 and 1500 and 1500 Classic

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11
List price $114.99
-13% $99.99
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• 10" Single Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 0.85 cubic feet
• Compatible with select 2002-2019 Ram 3500 / 2500 / 1500 and 1500 and 1500 Classic

Atrend A152-10CP

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

A152-10CP big Out of stock
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Atrend A152-10CP

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

• 10" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.86 cubic feet
• Compatible with select 1999-2007 vehicles from GMC, Chevrolet

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8
$159.99
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• 10" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.86 cubic feet
• Compatible with select 1999-2007 vehicles from GMC, Chevrolet

Atrend A142-10CP

Empty Dual 10" Sealed Enclosure for

A142-10CP big Out of stock
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Atrend A142-10CP

Empty Dual 10" Sealed Enclosure for

• 10" Dual Sealed Subwoofer Enclosure
• Compatible with
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.82 cubic feet

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6
$199.99
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• 10" Dual Sealed Subwoofer Enclosure
• Compatible with
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.82 cubic feet

Atrend A392-10CP

Empty Dual 10" Sealed Rear Enclosure for select 1999-2007 F-350 Super Duty and F-250 Super Duty and F-450 Super Duty

A392-10CP big Out of stock
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Atrend A392-10CP

Empty Dual 10" Sealed Rear Enclosure for select 1999-2007 F-350 Super Duty and F-250 Super Duty and F-450 Super Duty

• 10" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.92 cubic feet
• Compatible with select 1999-2007 F-350 Super Duty and F-250 Super Duty and F-450 Super Duty

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1
$179.99
Add to Cart

• 10" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.92 cubic feet
• Compatible with select 1999-2007 F-350 Super Duty and F-250 Super Duty and F-450 Super Duty

Atrend A361-10CP

Empty Dual 10" Sealed Rear Underseat Enclosure for select 2009-2025 F-150 and F-150 Lightning

A361-10CP big Out of stock
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Atrend A361-10CP

Empty Dual 10" Sealed Rear Underseat Enclosure for select 2009-2025 F-150 and F-150 Lightning

• 10" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 0.8 cubic feet
• Compatible with select 2009-2025 F-150 and F-150 Lightning

No Fit Icon Doesn't fit your A4 Quattro

5
List price $109.95
-14% $94.95
Add to Cart

• 10" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 0.8 cubic feet
• Compatible with select 2009-2025 F-150 and F-150 Lightning

Atrend A202-12CP

Empty Dual 12" Sealed Rear Underseat Enclosure for select 2002-2019 Ram 3500 / 2500 / 1500 and 1500 and 1500 Classic

A202-12CP big Out of stock
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Atrend A202-12CP

Empty Dual 12" Sealed Rear Underseat Enclosure for select 2002-2019 Ram 3500 / 2500 / 1500 and 1500 and 1500 Classic

• 12" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.26 cubic feet
• Compatible with select 2002-2019 Ram 3500 / 2500 / 1500 and 1500 and 1500 Classic

No Fit Icon Doesn't fit your A4 Quattro

6
List price $204.99
$199.99
Add to Cart

• 12" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.26 cubic feet
• Compatible with select 2002-2019 Ram 3500 / 2500 / 1500 and 1500 and 1500 Classic

Atrend A219-8CPQS

Empty Quad 8" Sealed Rear Truck Enclosure for select 2019-2025 vehicles from Ram

A219-8CPQS big Out of stock
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Atrend A219-8CPQS

Empty Quad 8" Sealed Rear Truck Enclosure for select 2019-2025 vehicles from Ram

• 8" Quad Sealed Truck Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Premium charcoal carpet finish
• Total box volume: 2 cubic feet
• Compatible with select 2019-2025 vehicles from Ram

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1
List price $205.40
-27% $149.99
Add to Cart

• 8" Quad Sealed Truck Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Premium charcoal carpet finish
• Total box volume: 2 cubic feet
• Compatible with select 2019-2025 vehicles from Ram

NVX Empty BOOST Box - 2019-2024 Chevy Silverado/GMC Sierra - UBE-GM-19SLVCC-P212

For select 2019-2024 Sierra and Silverado 3500 HD / 2500 HD / 1500 / 1500 LD Crew Cab Trucks - Dual 12" Empty BOOST Vented Truck Enclosure with LED Lighting

UBE-GM-19SLVCC-P212 big Out of stock
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NVX Empty BOOST Box - 2019-2024 Chevy Silverado/GMC Sierra - UBE-GM-19SLVCC-P212

For select 2019-2024 Sierra and Silverado 3500 HD / 2500 HD / 1500 / 1500 LD Crew Cab Trucks - Dual 12" Empty BOOST Vented Truck Enclosure with LED Lighting

• Custom Fit Empty Dual 12" BOOST Vented Truck Enclosure
• Compatible with select 2019-2024 Sierra and Silverado 3500 HD / 2500 HD / 1500 / 1500 LD
• 3/4" Medium Density Fiberboard (MDF) construction
• Illuminated etched plexiglass with RGB LED lighting
• Total box volume: 2.75 cubic feet (common chamber)

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List price $1249.99
-20% $999.99
Add to Cart

• Custom Fit Empty Dual 12" BOOST Vented Truck Enclosure
• Compatible with select 2019-2024 Sierra and Silverado 3500 HD / 2500 HD / 1500 / 1500 LD
• 3/4" Medium Density Fiberboard (MDF) construction
• Illuminated etched plexiglass with RGB LED lighting
• Total box volume: 2.75 cubic feet (common chamber)

NVX Empty BOOST Box - 2009-2026 Ford F-Series Crew Cab - UBE-FD-09F150SC-S212

For select 2009-2026 vehicles from Ford - Dual 12" Empty BOOST Sealed Truck Enclosure with LED Lighting

UBE-FD-09F150SC-S212 big Out of stock
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NVX Empty BOOST Box - 2009-2026 Ford F-Series Crew Cab - UBE-FD-09F150SC-S212

For select 2009-2026 vehicles from Ford - Dual 12" Empty BOOST Sealed Truck Enclosure with LED Lighting

• Custom Fit Empty Dual 12" BOOST Sealed Truck Enclosure
• Compatible with select 2009-2026 vehicles from Ford
• 3/4" Medium Density Fiberboard (MDF) construction
• Illuminated etched plexiglass with RGB LED lighting
• Total box volume: 1.5 cubic feet (common chamber)

No Fit Icon Doesn't fit your A4 Quattro

List price $1199.99
-17% $999.99
Add to Cart

• Custom Fit Empty Dual 12" BOOST Sealed Truck Enclosure
• Compatible with select 2009-2026 vehicles from Ford
• 3/4" Medium Density Fiberboard (MDF) construction
• Illuminated etched plexiglass with RGB LED lighting
• Total box volume: 1.5 cubic feet (common chamber)

NVX Empty BOOST Box - 2009-2025 Ford F-Series - UBE-FD-09F150SC-P210

For - Dual 10" Empty BOOST Vented Truck Enclosure with RGB LED Lighting

UBE-FD-09F150SC-P210 big Out of stock
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NVX Empty BOOST Box - 2009-2025 Ford F-Series - UBE-FD-09F150SC-P210

For - Dual 10" Empty BOOST Vented Truck Enclosure with RGB LED Lighting

• Custom Fit Empty Dual 10" BOOST Vented Truck Enclosure
• Compatible with
• 3/4" Medium Density Fiberboard (MDF) construction
• Illuminated etched plexiglass with RGB LED lighting
• Total box volume: 1.35 cubic feet (common chamber)

No Fit Icon Doesn't fit your A4 Quattro

List price $1249.99
-20% $999.99
Add to Cart

• Custom Fit Empty Dual 10" BOOST Vented Truck Enclosure
• Compatible with
• 3/4" Medium Density Fiberboard (MDF) construction
• Illuminated etched plexiglass with RGB LED lighting
• Total box volume: 1.35 cubic feet (common chamber)

Atrend A202-10CP

Empty Dual 10" Sealed Rear Underseat Enclosure for select 2002-2019 Ram 2500 / 1500 / 3500 and 1500 and 1500 Classic

A202-10CP big Out of stock
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Atrend A202-10CP

Empty Dual 10" Sealed Rear Underseat Enclosure for select 2002-2019 Ram 2500 / 1500 / 3500 and 1500 and 1500 Classic

• 10" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.26 cubic feet
• Compatible with select 2002-2019 Ram 2500 / 1500 / 3500 and 1500 and 1500 Classic

No Fit Icon Doesn't fit your A4 Quattro

1
List price $204.99
-20% $164.99
Notify Me

• 10" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.26 cubic feet
• Compatible with select 2002-2019 Ram 2500 / 1500 / 3500 and 1500 and 1500 Classic

Atrend A134-10CPV

Empty Single 10" Vented Rear Underseat Enclosure for select 2014-2018 Sierra 2500 HD / 3500 HD / 1500 and Silverado 2500 HD / 1500 / 3500 HD

A134-10CPV big Out of stock
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Atrend A134-10CPV

Empty Single 10" Vented Rear Underseat Enclosure for select 2014-2018 Sierra 2500 HD / 3500 HD / 1500 and Silverado 2500 HD / 1500 / 3500 HD

• 10" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 0.9 cubic feet
• Compatible with select 2014-2018 Sierra 2500 HD / 3500 HD / 1500 and Silverado 2500 HD / 1500 / 3500 HD

No Fit Icon Doesn't fit your A4 Quattro

4
List price $124.99
$124.95
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• 10" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 0.9 cubic feet
• Compatible with select 2014-2018 Sierra 2500 HD / 3500 HD / 1500 and Silverado 2500 HD / 1500 / 3500 HD

Atrend A131-10CPV

Empty Single 10" Sealed Rear Underseat Enclosure for select 2007-2014 Sierra 3500 HD / 2500 HD / 1500 and Silverado 2500 HD / 1500 / 3500 HD

A131-10CPV big Out of stock
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Atrend A131-10CPV

Empty Single 10" Sealed Rear Underseat Enclosure for select 2007-2014 Sierra 3500 HD / 2500 HD / 1500 and Silverado 2500 HD / 1500 / 3500 HD

• 10" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.0 cubic feet
• Compatible with select 2007-2014 Sierra 3500 HD / 2500 HD / 1500 and Silverado 2500 HD / 1500 / 3500 HD

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3
$135.99
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• 10" Single Ported Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.0 cubic feet
• Compatible with select 2007-2014 Sierra 3500 HD / 2500 HD / 1500 and Silverado 2500 HD / 1500 / 3500 HD

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    FAQ Frequently asked questions in Empty Custom-fit Subwoofer Boxes

    Empty Custom-fit Subwoofer Boxes Frequently Asked Questions (FAQ)
    An empty custom-fit subwoofer box is a container that is specifically designed to house a car subwoofer and fit into a specific space in your car. Empty custom-fit subwoofer boxes are typically made from MDF or plywood and are built to the exact specifications of your car and subwoofer.
    There are a few reasons why you might need an empty custom-fit subwoofer box. First, empty custom-fit subwoofer boxes can provide a perfect fit for your subwoofer, which can help to improve the sound quality of your system. Second, empty custom-fit subwoofer boxes can help to save space in your car. Third, empty custom-fit subwoofer boxes can be customized to fit your specific needs and preferences.
    When choosing an empty custom-fit subwoofer box, you should consider the following factors: The size of your subwoofer The amount of bass you want The space you have available Your budget Your personal preferences The make and model of your car
    The installation process for an empty custom-fit subwoofer box will vary depending on the make and model of your car. However, most installation processes are relatively simple and can be done at home with basic tools. Here are some general steps involved in installing an empty custom-fit subwoofer box: Remove the old subwoofer box (if applicable). Place the new subwoofer box in the desired location. Secure the subwoofer box in place. Connect the subwoofer to your car stereo. Experiment with different settings to find the sound you like.
    Empty custom-fit subwoofer boxes are available from a variety of retailers, both online and in-store. When choosing a retailer, be sure to compare prices and read reviews to find the best deal.
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