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

Custom-fit Subwoofer Boxes for your 1978 Colt

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Product Type
Vehicle-specific loaded sub box,
Price Range
Number of Subwoofers
This value represents the number of subwoofers that the enclosure accommodates or that are included in the package or bundled kit.
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
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.
Type of Enclosure
Some of our Vehicle Specific enclosures are loaded with a subwoofer and an amplifier, some are only loaded with a subwoofer, while some are empty boxes.
Total Peak Power Handling
This is the Total Peak Power handling of all the subwoofers included in the package or enclosure.

If the loaded enclosure or amplifier and subwoofer package includes more than a single subwoofer, then this is the total peak power handling for all of the subs combined.

Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements.
Total RMS Power Handling
This is the total RMS power handling of all the subwoofers included in the package or enclosure.

If the loaded enclosure or amplifier and subwoofer package includes more than a single subwoofer, then this is the total RMS power handling for all of the subs combined.

The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend giving your subwoofer(s) 75% - 90% of the recommended RMS rating.
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Final Wired Impedance
This is the final impedance of the system as the amplifier will see it. If the final impedance is for two sets, it means that the enclosure has two sets of terminals at the listed impedance.
Box Finish
The material used on the outside of the box. Most boxes are carpeted to prevent exterior scratches; however vinyl is popular as it can often be color-matched to a near exact look of your leather factory interior.
Condition
Availability
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Kicker KGMDL7T12 (51KGMDL7T122)

1200W RMS Loaded Dual 12" Sealed Truck Enclosure for select 2008-2021 Silverado 1500 / 2500 HD / 3500 HD / 1500 LD and Sierra 2500 HD / 3500 HD / 1500 / 1500 Denali and Sierra Denali

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Kicker KGMDL7T12 (51KGMDL7T122)

1200W RMS Loaded Dual 12" Sealed Truck Enclosure for select 2008-2021 Silverado 1500 / 2500 HD / 3500 HD / 1500 LD and Sierra 2500 HD / 3500 HD / 1500 / 1500 Denali and Sierra Denali

• Sealed enclosure with 2 12" Solo-Baric L7T Series Subwoofer
• Compatible with select 2008-2021 Silverado 1500 / 2500 HD / 3500 HD / 1500 LD and Sierra 2500 HD / 3500 HD / 1500 / 1500 Denali and Sierra Denali
• 1200 watts RMS
• Final Impedance: 2-ohm
• Dimensions: 15-1/2" L x 7-7/16" H x 52" W

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MTX Audio Thunderform F250X00C20A-TN

400W Peak (200W RMS) Loaded Dual 10" Amplified Sealed Enclosure for select 2000-2014 F-250 Super Duty

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MTX Audio Thunderform F250X00C20A-TN

400W Peak (200W RMS) Loaded Dual 10" Amplified Sealed Enclosure for select 2000-2014 F-250 Super Duty

• 10" Amplified Loaded Subwoofer System
• 200 watts RMS
• Built-In Class Amplifier
• Speaker-Level Inputs
• Wired Remote Bass Level Control
• Compatible with select 2000-2014 F-250 Super Duty

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Kicker KRDL7T10 (51KRDL7T102)

1000W RMS Loaded Dual 10" Sealed Truck Enclosure for select 2002-2024 vehicles from Ram, Dodge

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Kicker KRDL7T10 (51KRDL7T102)

1000W RMS Loaded Dual 10" Sealed Truck Enclosure for select 2002-2024 vehicles from Ram, Dodge

• Ported enclosure with 2 10" Solo-Baric L7T Series Subwoofer
• select 2002-2024 vehicles from Ram, Dodge
• 1000 watts RMS
• Final Impedance: 2-ohm
• Dimensions: 16-7/16" L x 7-9/16" H x 58-7/16" W

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NVX Loaded BOOST Box - 2010-2015 Toyota Prius - BE-TOY-PRIG3

For select 2010-2015 Prius - Single 10" 350W RMS Loaded BOOST Sealed Enclosure

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NVX Loaded BOOST Box - 2010-2015 Toyota Prius - BE-TOY-PRIG3

For select 2010-2015 Prius - Single 10" 350W RMS Loaded BOOST Sealed Enclosure

• Custom-Fit Sealed BOOST enclosure with 1 10" S Series Subwoofer
• Fits select 2010-2015 Prius
• 350 watts RMS (700 watts Peak)
• Final Impedance: 2-ohm

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MTX Audio Thunderform DRQC20AC-TN (Charcoal, Amplified)

select 2002-2018 vehicles from Ram, Dodge Amplified 2 10" 4 ohm Vehicle Specific Thunderform Subwoofer Enclosure

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MTX Audio Thunderform DRQC20AC-TN (Charcoal, Amplified)

select 2002-2018 vehicles from Ram, Dodge Amplified 2 10" 4 ohm Vehicle Specific Thunderform Subwoofer Enclosure

• Dual 10" Loaded Amplified MTX Thunderform Subwoofer Enclosure
• For Dodge Ram Quad Cab 2002-2014
• Loaded with Dual Terminator Series Subwoofers
• 800W Max
• 400W RMS
• 4 Ohm

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NVX Loaded BOOST Box - 2019-2024 Chevrolet Silverado/GMC Sierra - BE-GM-SLVDC-G4

For select 2019-2024 Sierra and Silverado 1500 / 3500 HD / 2500 HD / 1500 LD - Dual 12" 800W RMS Loaded BOOST Sealed Truck Enclosure

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NVX Loaded BOOST Box - 2019-2024 Chevrolet Silverado/GMC Sierra - BE-GM-SLVDC-G4

For select 2019-2024 Sierra and Silverado 1500 / 3500 HD / 2500 HD / 1500 LD - Dual 12" 800W RMS Loaded BOOST Sealed Truck Enclosure

• Sealed BOOST truck enclosure with 2 12" S Series Subwoofer
• Fits select 2019-2024 Sierra and Silverado 1500 / 3500 HD / 2500 HD / 1500 LD
• 400 watts each RMS (800 watts each Peak)
• Final Impedance: 1-ohm

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JL Audio Stealthbox® SB-D-QDRAMD/10TW1

Custom fit subwoofer enclosure for select 2002-2024 vehicles from Ram, Dodge

SB-D-QDRAMD/10TW1 big
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JL Audio Stealthbox® SB-D-QDRAMD/10TW1

Custom fit subwoofer enclosure for select 2002-2024 vehicles from Ram, Dodge

• Loaded Vehicle Specific Stealthbox Subwoofer Enclosure with Two JL Audio 10TW1-4 Subwoofers
• RMS: 600 watts per pair / 300 watts each
• For 2002-Up Dodge Ram
• Stealthbox Installs underneath rear seat

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NVX Loaded BOOST Box - 2006-2013 Lexus IS250/IS350/ISF - BE-LEX-IS0613-VCW104

For select 2006-2013 vehicles from Lexus - Single 10" 1000W RMS Loaded BOOST Sealed Enclosure

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NVX Loaded BOOST Box - 2006-2013 Lexus IS250/IS350/ISF - BE-LEX-IS0613-VCW104

For select 2006-2013 vehicles from Lexus - Single 10" 1000W RMS Loaded BOOST Sealed Enclosure

• Custom-Fit Sealed BOOST enclosure with 1 10" VC Series Subwoofer
• Fits select 2006-2013 vehicles from Lexus
• 1000 watts RMS (2000 watts Peak)
• Final Impedance: 2-ohm

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MTX J-WRANGLER-07L

250W RMS 10" Thunderform Series Single 4-ohm Subwoofer

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MTX J-WRANGLER-07L

250W RMS 10" Thunderform Series Single 4-ohm Subwoofer

• 1 10" MTX ThunderForm Series Subwoofer
• 250 watts RMS ( Peak)
• Final Impedance: 4-ohm
• Dimensions: 17-4/5" L x 16-5/16" H x 6-9/16" W

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JL Audio Stealthbox® SB-J-GCHWK2/10W3v3/BK

Custom fit subwoofer enclosure for select 2011-2021 Grand Cherokee (Black)

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JL Audio Stealthbox® SB-J-GCHWK2/10W3v3/BK

Custom fit subwoofer enclosure for select 2011-2021 Grand Cherokee (Black)

• Loaded Vehicle Specific Stealthbox Subwoofer Enclosure with Single JL Audio 10W3v3-2
• 500 Watts RMS Power Handling
• Stealthbox Installs into passenger-side rear cargo panel

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Kicker 51KTDL7T102

1000W RMS Loaded Dual 10" Sealed Truck Enclosure for select 2011-2024 vehicles from Ram

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Kicker 51KTDL7T102

1000W RMS Loaded Dual 10" Sealed Truck Enclosure for select 2011-2024 vehicles from Ram

• Sealed truck enclosure with 2 10" L7T Series Subwoofer
• 1000 watts RMS
• Final Impedance: 2-ohm

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• Sealed truck enclosure with 2 10" L7T Series Subwoofer
• 1000 watts RMS
• Final Impedance: 2-ohm

Alpine R2-DB8V-TRK

2000W Peak (700W RMS) Loaded Dual 8" R-Series Vented Truck Enclosure for select 2007-2024 vehicles from Ford, Jeep, Ram

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Alpine R2-DB8V-TRK

2000W Peak (700W RMS) Loaded Dual 8" R-Series Vented Truck Enclosure for select 2007-2024 vehicles from Ford, Jeep, Ram

• Ported truck enclosure with 2 8" R Series Subwoofer
• 350 watts each RMS (1000 watts each Peak)
• Final Impedance: 2-ohm
• Dimensions: 13-3/4" L x 8-3/4" H x 40" W x 40" W2

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MTX Audio Thunderform DRQC20C-TN (Charcoal, Loaded)

Two 10" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure for select 2002-2018 vehicles from Ram, Dodge

DRQC20C-TN big
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MTX Audio Thunderform DRQC20C-TN (Charcoal, Loaded)

Two 10" 4 ohms Loaded Vehicle Specific Thunderform Subwoofer Enclosure for select 2002-2018 vehicles from Ram, Dodge

• Dual 10" Loaded MTX Thunderform Subwoofer Enclosure
• For Dodge Ram Quad Cab 2002-2014
• Loaded with Dual Terminator Series Subwoofers
• 800W Max
• 400W RMS
• 4 ohm
• Polypropylene Cone

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JL Audio Stealthbox® SB-GM-4GSUVCNSL/10TW1

Custom fit subwoofer enclosure for select 2015-2021 vehicles from Chevrolet, Cadillac, GMC with Front Bucket Seats and Factory Console

SB-GM-4GSUVCNSL/10TW1 big
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JL Audio Stealthbox® SB-GM-4GSUVCNSL/10TW1

Custom fit subwoofer enclosure for select 2015-2021 vehicles from Chevrolet, Cadillac, GMC with Front Bucket Seats and Factory Console

• Loaded Vehicle Specific Stealthbox Subwoofer Enclosure with Single JL Audio 10TW1-2
• 300 Watts RMS Power Handling
• Stealthbox Installs Under Center Console

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MTX Audio Thunderform F150C04BK12A-TN (Black, Amplified)

Amplified 12" 4 ohm Loaded Car Specific Thunderform Sub Enclosure select 2004-2008 F-150

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MTX Audio Thunderform F150C04BK12A-TN (Black, Amplified)

Amplified 12" 4 ohm Loaded Car Specific Thunderform Sub Enclosure select 2004-2008 F-150

• Amplified 12" Loaded MTX Thunderform Sealed Subwoofer Enclosure
• For 2004-2008 Ford F-150 Crew/Ext Cab
• Loaded with 12" Terminator Series Subwoofers
• 400W Max
• 200W RMS
• 4 Ohm

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MTX Audio Thunderform F150C04C12A-TN (Charcoal, Amplified)

Amplified 12" 4 ohm Loaded Car Specific Thunderform Sub Enclosure for select 2004-2008 F-150

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MTX Audio Thunderform F150C04C12A-TN (Charcoal, Amplified)

Amplified 12" 4 ohm Loaded Car Specific Thunderform Sub Enclosure for select 2004-2008 F-150

• Amplified 12" Loaded MTX Thunderform Sealed Subwoofer Enclosure
• For 2004-2008 Ford F-150 Crew/Ext Cab
• Loaded With 12" Terminator Series Subwoofer
• 400W Max
• 200W RMS
• 4 Ohm

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Kicker KFDL7T10 (51KFDL7T102)

1000W RMS Loaded Dual 10" Sealed Truck Enclosure for select 2009-2021 vehicles from Ford

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Kicker KFDL7T10 (51KFDL7T102)

1000W RMS Loaded Dual 10" Sealed Truck Enclosure for select 2009-2021 vehicles from Ford

• Sealed enclosure with 2 10" Solo-Baric L7T Series Subwoofer
• For select 2009-2021 vehicles from Ford
• 1000 watts RMS ( Peak)
• Final Impedance: 2-ohm
• Dimensions: 13-3/8" L x 8-1/4" H x 55-1/8" W

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JL Audio Stealthbox® SB-GM-SLVCC3/10TW3/BK2

Custom-Fit Loaded 10" Sealed Truck Enclosure with Two 10TW3-D8 Subwoofers for select 2007-2013 vehicles from Chevrolet, GMC.

SB-GM-SLVCC3/10TW3/BK2 big
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JL Audio Stealthbox® SB-GM-SLVCC3/10TW3/BK2

Custom-Fit Loaded 10" Sealed Truck Enclosure with Two 10TW3-D8 Subwoofers for select 2007-2013 vehicles from Chevrolet, GMC.

• Sealed truck enclosure with 2 10" TW3 Shallow Mount Series Subwoofer
• Designed for select 2007-2013 vehicles from Chevrolet, GMC
• 800 watts per pair / 400 watts each RMS
• Final Impedance: 4-ohm
• Includes two JL Audio 10TW3-D8 subwoofers
• Installs easily under the truck's rear seat location

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JL Audio Stealthbox® SB-GM-3GSLVCNSL/10TW1

Custom fit subwoofer enclosure for select 2014-2018 Sierra 1500 / 2500 HD / 3500 HD and Silverado 3500 HD / 1500 / 2500 HD Front Bucket Seats and OEM Console

SB-GM-3GSLVCNSL/10TW1 big
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JL Audio Stealthbox® SB-GM-3GSLVCNSL/10TW1

Custom fit subwoofer enclosure for select 2014-2018 Sierra 1500 / 2500 HD / 3500 HD and Silverado 3500 HD / 1500 / 2500 HD Front Bucket Seats and OEM Console

• Loaded Vehicle Specific Stealthbox Subwoofer Enclosure with Single JL Audio 10TW1-2
• 300 Watts RMS Power Handling
• Stealthbox Installs Under Center Console

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JL Audio Stealthbox® SB-GM-VETC6/10W1v3

Custom fit subwoofer enclosure for select 2005-2013 Corvette

SB-GM-VETC6/10W1v3 big
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JL Audio Stealthbox® SB-GM-VETC6/10W1v3

Custom fit subwoofer enclosure for select 2005-2013 Corvette

• Loaded Vehicle Specific Stealthbox Subwoofer Enclosure with Single JL Audio 10W1v3-2
• 300 Watts RMS Power Handling
• Stealthbox Installs neatly into the rear corner of the hatch

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    All About

    Custom-fit Subwoofer Boxes
    Finding custom fit car subwoofers and boxes doesn't have to be a tedious task. We get it, you don't just want to buy a set of speakers or a box that "might fit" your vehicle, you want want that actually gets the job done. Our wide selection of vehicle-specific subwoofer & boxes will have you rockin n rolling in no time.
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