Garage
Shop
Account Icon
Account
Box Icon
Track
order
Telephone Icon
Call
Help Icon
Help
Door with Arrow Icon
Sign In

2020 Jeep Gladiator

Change vehicle | Remove vehicle

A custom-fit vehicle-specific sub solution for your Gladiator saves space and offers a finish that is unrivaled.

Overview Upgrade your Stereo Upgrade your Speakers Add a Subwoofer Add an Amplifier Digital Sound Processors Audio Installation & Accessories Add a Backup Camera Add Remote Start Dads & Grads Sale

Sub Boxes Custom-fit for your 2020 Gladiator for 2020 Jeep Gladiator

A Gladiator custom-fit sub box is the best way to add bass without sacrificing space. You'll get a box that looks and sounds great and matches the factory "look" to a T.  We carry vehicle specific solutions like the NVX BOOST Boxes, JL Audio StealthBoxes, MTX Thunderforms and more.

Filters
Reset Done
Product Type
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.
Deals
Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!
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.
Availability
filter-icon Filters & Sort

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

R2-DB8V-TRK big
Go to item page Right Arrow Icon of Right Arrow

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

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

VIP Product Get $100.00 in rewards to spend later

found car based on your search
Fits your Gladiator
1
List price $1200.00
-17% $999.95

In stock

Only 3 Left!

Add to Cart

DS18 EBM-FFPGLAD-4X8

Empty Quad 8" Vented Underseat Enclosure for select 2020-2024 Gladiator

EBM-FFPGLAD-4X8 big
Go to item page Right Arrow Icon of Right Arrow

DS18 EBM-FFPGLAD-4X8

Empty Quad 8" Vented Underseat Enclosure for select 2020-2024 Gladiator

• 8" Quad Ported Subwoofer Enclosure
• Medium Density Fiberboard (MDF) construction
• Custom fit front-firing under seat construction
• Integrates seamlessly to truck's cabin
• Total box volume: 4 cubic feet

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

VIP Product Get $48.00 in rewards to spend later

found car based on your search
Fits your Gladiator
$479.95

In stock

Only 3 Left!

Add to Cart

• 8" Quad Ported Subwoofer Enclosure
• Medium Density Fiberboard (MDF) construction
• Custom fit front-firing under seat construction
• Integrates seamlessly to truck's cabin
• Total box volume: 4 cubic feet

NVX - Worth the Envy - Direct to Consumer Car Audio

Alpine S2-DB8V-TRK

600W Peak (300W RMS) Loaded Dual 8" Vented Enclosure for select 2007-2024 vehicles from Jeep, GMC, Ford

S2-DB8V-TRK big
Go to item page Right Arrow Icon of Right Arrow

Alpine S2-DB8V-TRK

600W Peak (300W RMS) Loaded Dual 8" Vented Enclosure for select 2007-2024 vehicles from Jeep, GMC, Ford

• Ported enclosure with 2 8" S Series Subwoofer
• 300 watts RMS (600 watts Peak)
• Final Impedance: 2-ohm
• Dimensions: 40-51" L x 8.75" H x 13.75" W

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

VIP Product Get $85.00 in rewards to spend later

found car based on your search
Fits your Gladiator
List price $1020.00
-17% $849.95

In stock

Only 2 Left!

Add to Cart

DS18 JT-S84LD

3600W Peak (1800W RMS) Loaded Quad 8" Sealed Enclosure with Digital LED Lights for select 2020-2026 Gladiator

JT-S84LD big
Go to item page Right Arrow Icon of Right Arrow

DS18 JT-S84LD

3600W Peak (1800W RMS) Loaded Quad 8" Sealed Enclosure with Digital LED Lights for select 2020-2026 Gladiator

• Sealed enclosure with 4 8" Subwoofer
• 1800 watts RMS (3600 watts Peak)
• Final Impedance: 1-ohm
• Dimensions: 44.3" L x 7.2" H (front) / 5.8" H (rear) x 11.2" W

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

VIP Product Get $125.00 in rewards to spend later

found car based on your search
Fits your Gladiator
$1,249.95

In stock

Only 1 Left!

Add to Cart

DS18 EBM-FFPGLAD-2X8

Empty Dual 8" Vented Underseat Enclosure for select 2020-2026 Gladiator

EBM-FFPGLAD-2X8 big
Go to item page Right Arrow Icon of Right Arrow

DS18 EBM-FFPGLAD-2X8

Empty Dual 8" Vented Underseat Enclosure for select 2020-2026 Gladiator

• 8" Dual Ported Subwoofer Enclosure
• Medium Density Fiberboard (MDF) construction
• Custom fit front-firing under seat construction
• Integrates seamlessly to truck's cabin
• Total box volume: 2 cubic feet

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

VIP Product Get $48.00 in rewards to spend later

found car based on your search
Fits your Gladiator
$479.95

In stock.

Add to Cart

• 8" Dual Ported Subwoofer Enclosure
• Medium Density Fiberboard (MDF) construction
• Custom fit front-firing under seat construction
• Integrates seamlessly to truck's cabin
• Total box volume: 2 cubic feet

DS18 JT-S64

Empty Quad 6.5" Sealed Underseat Enclosure for select 2020-2026 Gladiator

JT-S64 big
Go to item page Right Arrow Icon of Right Arrow

DS18 JT-S64

Empty Quad 6.5" Sealed Underseat Enclosure for select 2020-2026 Gladiator

• 6.5" Quad Sealed Under Seat Subwoofer Enclosure for select 2020-2026 Gladiator
• Medium Density Fiberboard (MDF) construction
• Total box volume: 1.3 cubic feet
• Mounting bracket and hardware included
• Built-in RGB LED lights in DS18 logos badge

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

VIP Product Get $50.00 in rewards to spend later

found car based on your search
Fits your Gladiator
$499.95

In stock

Only 1 Left!

Add to Cart
Limited time!

JL Audio Stealthbox® SBX-J-JTGLAD/10TW1

Custom Fit 10" Subwoofer Enclosure for select 2020-2026 Gladiator

SBX-J-JTGLAD/10TW1 big
Go to item page Right Arrow Icon of Right Arrow

JL Audio Stealthbox® SBX-J-JTGLAD/10TW1

Custom Fit 10" Subwoofer Enclosure for select 2020-2026 Gladiator

• Sealed enclosure with 2 10" Stealthbox Series Subwoofer
• 300 watts RMS each
• Final Impedance: 2-ohm

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

VIP Product Get $160.00 in rewards to spend later

found car based on your search
Fits your Gladiator
1
List price $2999.99
Save 47%
-47% $1,599.99

In stock

Only 1 Left!

Add to Cart

• Sealed enclosure with 2 10" Stealthbox Series Subwoofer
• 300 watts RMS each
• Final Impedance: 2-ohm

DS18 JT-S62

Empty Dual 6.5" Sealed Under Seat Enclosure for select 2020-2026 Gladiator

JT-S62 big
Go to item page Right Arrow Icon of Right Arrow

DS18 JT-S62

Empty Dual 6.5" Sealed Under Seat Enclosure for select 2020-2026 Gladiator

• 6.5" Dual Sealed Under Seat Subwoofer Enclosure for select 2020-2026 Gladiator
• Medium Density Fiberboard (MDF) construction
• Total box volume: 0.85 cubic feet
• Mounting bracket and hardware included
• Built-in RGB LED lights in DS18 logos badge

shipping truck icon Free shipping in USA. Provide zip for delivery date.
found car based on your search
Fits your Gladiator
$459.95

In stock.

Add to Cart

AudioControl TX-JTD8

1000W RMS Loaded Dual 8" Vented Enclosure for select 2020-2024 Gladiator

TXJ-TD8 big
Go to item page Right Arrow Icon of Right Arrow

AudioControl TX-JTD8

1000W RMS Loaded Dual 8" Vented Enclosure for select 2020-2024 Gladiator

• Ported under seat enclosure with 2 8" Subwoofer
• Compatible with select 2020-2024 Gladiator
• 1000 watts RMS pair / 500 watts RMS each
• Final Impedance: 4-ohm
• Dimensions: 48" L x 7.5" H x 10.5" W

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

VIP Product Get $84.90 in rewards to spend later

found car based on your search
Fits your Gladiator
List price $999.00
-15% $849.00

In stock

Add to Cart
Limited time!

MB Quart MBQJT-SUBA-1

400W Tuned Dual Subwoofers System for select 2020-2023 Gladiator

MBQJT-SUBA-1 big
Go to item page Right Arrow Icon of Right Arrow

MB Quart MBQJT-SUBA-1

400W Tuned Dual Subwoofers System for select 2020-2023 Gladiator

• 400 Watt Jeep® Gladiator (JT) Tuned Dual Subwoofers System
• 8" Series Subwoofer(s)
• NA2 Series Class D amplifier included
• High Density Polyethylene (HDPE) custom-fit enclosure
• Enclosure Dimensions: 23.42" L x 16.06" W x 15.35" H

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

VIP Product Get $62.90 in rewards to spend later

found car based on your search
Fits your Gladiator
List price $829.99
Save $201.00
-24% $628.99

Available

Ships in 10-14 days

Add to Cart

MB Quart MBQJT-SUB-1

Custom underseat enclosure with two 8" subs fits select 2020-2026 Gladiator

MBQJT-SUB-1 big
Go to item page Right Arrow Icon of Right Arrow

MB Quart MBQJT-SUB-1

Custom underseat enclosure with two 8" subs fits select 2020-2026 Gladiator

• 400 Watt Jeep® Gladiator (JT) Tuned Dual Subwoofers System
• 8" Series Subwoofer(s)
• High Density Polyethylene (HDPE) custom-fit enclosure
• Enclosure Dimensions: 23.42" L x 16.06" W x 15.35" H

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

VIP Product Get $63.00 in rewards to spend later

found car based on your search
Fits your Gladiator
List price $699.99
-10% $629.99

In stock

Only 1 Left!

Add to Cart

VIBE JP-GL1-12

900W Peak (300W RMS) Loaded Single 12" Vented Truck Subwoofer Enclosure for select 2020-2025 Gladiator

JP-GL1-12 big
Go to item page Right Arrow Icon of Right Arrow

VIBE JP-GL1-12

900W Peak (300W RMS) Loaded Single 12" Vented Truck Subwoofer Enclosure for select 2020-2025 Gladiator

• Ported enclosure with 1 12" Black Air Series Subwoofer
• 300 watts RMS (900 watts Peak)
• Final Impedance: 4-ohm
• Compatible with select 2020-2025 Gladiator

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

VIP Product Get $50.80 in rewards to spend later

found car based on your search
Fits your Gladiator
$507.99

In stock.

Add to Cart

• Ported enclosure with 1 12" Black Air Series Subwoofer
• 300 watts RMS (900 watts Peak)
• Final Impedance: 4-ohm
• Compatible with select 2020-2025 Gladiator

Limited time!

MB Quart MBQJ-STG4AH-1

800W Peak Four Speaker Full Audio System Upgrade for select 2018-2026 Gladiator and Wrangler (JL)

MBQJ-STG4AH-1 big
Go to item page Right Arrow Icon of Right Arrow

MB Quart MBQJ-STG4AH-1

800W Peak Four Speaker Full Audio System Upgrade for select 2018-2026 Gladiator and Wrangler (JL)

• System includes two coaxial speakers, two midbass drivers and two full range amplifiers
• Compatible with select 2018-2026 Gladiator and Wrangler (JL)
• 3.5" Coaxial speakers with Magnesium dome tweeters
• 6.5" Midbass drivers
• 2-channel full range class D amplifier
• Plug and Play design for easy installation

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

VIP Product Get $85.00 in rewards to spend later

found car based on your search
Fits your Gladiator
List price $1199.99
Save $350.00
-29% $849.99

Available

Ships in 10-14 days

Add to Cart

• System includes two coaxial speakers, two midbass drivers and two full range amplifiers
• Compatible with select 2018-2026 Gladiator and Wrangler (JL)
• 3.5" Coaxial speakers with Magnesium dome tweeters
• 6.5" Midbass drivers
• 2-channel full range class D amplifier
• Plug and Play design for easy installation

Limited time!

MB Quart MBQJ-STG4A-1

800W Peak Four Speaker Full Audio System Upgrade for

MBQJ-STG4A-1 big
Go to item page Right Arrow Icon of Right Arrow

MB Quart MBQJ-STG4A-1

800W Peak Four Speaker Full Audio System Upgrade for

• System includes two coaxial speakers, two midbass drivers and two full range amplifiers
• Compatible with
• 3.5" Coaxial speakers with Magnesium dome tweeters
• 6.5" Midbass drivers
• 2-channel full range class D amplifier
• Plug and Play design for easy installation

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

VIP Product Get $124.10 in rewards to spend later

found car based on your search
Fits your Gladiator
List price $1659.99
Save $419.00
-25% $1,240.99

Available

Ships in 10-14 days

Add to Cart

• System includes two coaxial speakers, two midbass drivers and two full range amplifiers
• Compatible with
• 3.5" Coaxial speakers with Magnesium dome tweeters
• 6.5" Midbass drivers
• 2-channel full range class D amplifier
• Plug and Play design for easy installation

NVX - Worth the Envy - Direct to Consumer Car Audio
 
    Clear all
    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?
    FAQ for Custom-fit Subwoofer Boxes & Enclosures in 2020 Gladiator

    Q: Can I upgrade or change the Custom-fit Subwoofer Boxes & Enclosures in 2020 Jeep Gladiator?

    A: Yes this page includes all the best Custom-fit Subwoofer Boxes & Enclosures that work in your Gladiator.

    Save up to 10 different vehicles in your garage
    Vehicle
    Store     Delete

    1995 Subaru Impreza

    2020 Jeep Gladiator

    2008 Cadillac SRX

    2011 Toyota Sienna

    2002 Mazda B4000

    2013 Lexus RX350

    2002 Dodge Ram 3500

    1985 Toyota Camry

    2017 GMC Yukon XL

    2020 Ford Transit Connect

    Vehicle
    Store     Delete

    2017 Can-Am Maverick X3 Max Turbo R

    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

    Cancel

    This category was not designed for products.
    If you continue, you will be redirected to a category customized for your vehicle. Continue

    Cancel

    Shop your 2020 Gladiator
    Why Use a Vehicle Fit Guide?
    Change vehicle | Shop without vehicle
    Whoa! Slow down. Add your details below!
    additional information required
    Add vehicle details to confirm fitment
    Ignore fitment details
    Find stereos and more that work -- fast.

    Additional information:

    Remove

    Can't find your vehicle? Click here and we'll help.

    Where to find vehicle info

    Go to Fitment

    Didn't find your car?

    Submit your details and we'll help!
    Please enter the letters as they are shown in the image above. Letters are not case-sensitive.
    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
    Back

    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.

    Back
    Track your order
    Call our experts
    Support Center
    Return & Exchanges
    Follow on Instagram Instagram logo
    Subscribe on YouTube YouTube logo