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  1. Home
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  3. Atrend Car Audio & Electronics
  4. Atrend Car Subwoofers
  5. Atrend Empty Car Subwoofer Enclosures & Boxes
  6. Atrend All Empty Car Subwoofer Boxes

All Atrend Empty Car Subwoofer Boxes for your 2025 K4 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 Exterior Color
The color of the enclosure's exterior/outer finish.
Total Box Volume
The internal volume measurement in cubic feet before subwoofer magnet displacement.
Cutout Diameter or Length
The actual diameter of the hole in the subwoofer box. Length is the measured length per side of a square subwoofer or speaker opening.
Maximum Speaker Depth
Your subwoofer or speaker must not exceed this dimension in order to properly mount in this enclosure.
Box Style/Shape
The box style or shape refers to the actual shape of the box. Square and rectangular boxes are straight-edged boxes on all sides, whereas hatchback and truck style enclosures feature an angled front or back design that allows for installation in places short on depth such as single cab pickup trucks. You can also use such enclosures in hatchback cars or other vehicles where space is a premium. Tube and cylinder shaped boxes were made popular by Bazooka and are a great option for those looking for a nice amount of bass without sacrificing lots of space. They may even fit in locations that slim truck boxes cannot fit in. If the enclosure is vehicle specific, we encourage you to read the product description to find out which vehicles the enclosure is made for.
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Atrend 12SRF

Empty Single 12" Sealed Enclosure for Rockford Fosgate Prime R2 Series Subwoofer

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Atrend 12SRF

Empty Single 12" Sealed Enclosure for Rockford Fosgate Prime R2 Series Subwoofer

• 12" Single Sealed Subwoofer Enclosure
• Fits Rockford Fosgate Prime R2 series subwoofers
• 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: 0.47 cubic feet

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List price $109.99
-15% $93.60

In stock.

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Atrend 12KSQV

Empty Single 12" Vented Enclosure for Kenwood KFC-XW and KFC-W Subwoofers

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Atrend 12KSQV

Empty Single 12" Vented Enclosure for Kenwood KFC-XW and KFC-W Subwoofers

• 12" Single Ported Subwoofer Enclosure
• Fits Kenwood KFC-XW and KFC-W subwoofers
• 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: 1.5 cubic feet

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List price $99.99
-12% $88.40

Available

Ships in 10-14 days

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Atrend 12KWSV

Empty Single 12" Vented Enclosure for Kenwood KFC-XW Subwoofers

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Atrend 12KWSV

Empty Single 12" Vented Enclosure for Kenwood KFC-XW Subwoofers

• 12" Single Ported Subwoofer Enclosure
• Fits Kenwood KFC-XW subwoofers
• 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: 1.47 cubic feet

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List price $104.99
-11% $93.60

Available

Ships in 10-14 days

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Atrend KW10DS

Empty Dual 10" Sealed Enclosure for Kenwood KFC-W and XW Subwoofers

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Atrend KW10DS

Empty Dual 10" Sealed Enclosure for Kenwood KFC-W and XW Subwoofers

• 10" Dual Sealed Subwoofer Enclosure
• Fits Kenwood KFC-XW 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: 2.4 cubic feet

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List price $99.99
-10% $89.99

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Ships in 10-14 days

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• 10" Dual Sealed Subwoofer Enclosure
• Fits Kenwood KFC-XW 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: 2.4 cubic feet

Atrend 12KWSS

Empty Single 12" Sealed Enclosure for Kenwood KFC-XW Subwoofers

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Atrend 12KWSS

Empty Single 12" Sealed Enclosure for Kenwood KFC-XW Subwoofers

• 12" Single Sealed Subwoofer Enclosure
• Fits Kenwood KFC-XW subwoofers
• 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: 0.8 cubic feet

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List price $94.99
$91.00

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Ships in 10-14 days

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Atrend 12PSS

Empty Single 12" Sealed Enclosure for Pioneer Pro Series Subwoofer

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Atrend 12PSS

Empty Single 12" Sealed Enclosure for Pioneer Pro Series Subwoofer

• 12" Single Sealed Subwoofer Enclosure
• Fits Pioneer Pro subwoofers
• 1" 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: 2.5 cubic feet

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List price $89.99
-13% $78.00

Available

Ships in 10-14 days

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Atrend 10SVR - Brushed Aluminum

Empty Single 10" Vented Subwoofer Enclosure (Brushed Aluminum)

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Atrend 10SVR - Brushed Aluminum

Empty Single 10" Vented Subwoofer Enclosure (Brushed Aluminum)

• 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

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List price $164.95
-15% $139.99

Available

Ships in 10-14 days

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Atrend 12KSQL

Empty Single 12" Sealed Enclosure for Kenwood KFC-XW Subwoofers

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Atrend 12KSQL

Empty Single 12" Sealed Enclosure for Kenwood KFC-XW Subwoofers

• 12" Single Sealed Subwoofer Enclosure
• Fits Kenwood KFC-XW subwoofers
• 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: 0.8 cubic feet

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List price $89.99
-10% $80.60

Available

Ships in 10-14 days

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Atrend 12FS

Empty Quad 12" Front and Side Sealed Subwoofer Enclosure

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Atrend 12FS

Empty Quad 12" Front and Side Sealed Subwoofer Enclosure

• 12" Quad Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Two hole at the front and two hole at the side
• Miter and Dado construction
• Premium black carpet finish
• Silver spring loaded terminal cups
• Glued and braced with fasteners
• Total box volume: 6 cubic feet

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List price $304.99
-16% $254.80

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Ships in 10-14 days

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Atrend A181-12CPV

Empty Single 12" Vented Rear Underseat Enclosure for select 2007-2021 Silverado 3500 HD / 2500 HD / 1500 / 1500 HD / 1500 LD and Sierra 1500 / 2500 HD / 1500 Denali / 3500 HD / 1500 HD and Sierra Denali

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Atrend A181-12CPV

Empty Single 12" Vented Rear Underseat Enclosure for select 2007-2021 Silverado 3500 HD / 2500 HD / 1500 / 1500 HD / 1500 LD and Sierra 1500 / 2500 HD / 1500 Denali / 3500 HD / 1500 HD and Sierra Denali

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

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1
List price $164.99
-21% $129.95

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Atrend A341-10CP

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

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Atrend A341-10CP

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 K4

2
List price $119.99
-17% $99.95

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Atrend A151-12CP

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

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Atrend A151-12CP

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 K4

8
List price $104.95
-9% $94.99

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Atrend A362-10CP

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

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Atrend A362-10CP

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 K4

5
$159.99

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Ships in 10-14 days

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Atrend A181-10CPV

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

A181-10CPV big
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Atrend A181-10CPV

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

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No Fit Icon Doesn't fit your K4

2
List price $164.99
-32% $112.99

In stock

Only 2 Left!

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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

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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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No Fit Icon Doesn't fit your K4

1
$179.99

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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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Atrend A151-10CP

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 K4

3
$99.99

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Atrend A372-10CP

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

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Atrend A372-10CP

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 K4

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$154.95

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Ships in 10-14 days

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Limited time!

Atrend A352-10CP

Empty Dual 10" Sealed Rear Underseat Enclosure for select 2001-2003 F-150

A352-10CP big
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Atrend A352-10CP

Empty Dual 10" Sealed Rear Underseat Enclosure for select 2001-2003 F-150

• 10" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 2.1 cubic feet
• Compatible with select 2001-2003 F-150

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No Fit Icon Doesn't fit your K4

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$175.99

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Atrend A602-10CP

Empty Dual 10" Sealed Under Rear Enclosure for select 2007-2018 Tundra

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Atrend A602-10CP

Empty Dual 10" Sealed Under Rear Enclosure for select 2007-2018 Tundra

• 10" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 2 cubic feet
• Compatible with select 2007-2018 Tundra

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No Fit Icon Doesn't fit your K4

1
$189.99

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Ships in 10-14 days

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Limited time!

Atrend A622-10CP

Empty Dual 10" Sealed Rear Enclosure for select 2005-2015 Tacoma

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Atrend A622-10CP

Empty Dual 10" Sealed Rear Enclosure for select 2005-2015 Tacoma

• 10" Dual Sealed Subwoofer Enclosure
• 3/4" Medium Density Fiberboard (MDF) construction
• Total box volume: 1.64 cubic feet
• Compatible with select 2005-2015 Tacoma

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No Fit Icon Doesn't fit your K4

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List price $204.99
-7% $189.99

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