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  1. Home
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  3. Alpine Car Audio & Electronics
  4. Alpine Car Subwoofers
  5. Alpine Underseat Subwoofers

Alpine Underseat Subwoofers for your 2023 Gladiator 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.
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.
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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2023 Gladiator
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Alpine PSS-24WRA

7-Speaker Full Audio System Upgrade Kit for select 2019-2023 Wrangler and Gladiator

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Alpine PSS-24WRA

7-Speaker Full Audio System Upgrade Kit for select 2019-2023 Wrangler and Gladiator

• Includes two front speakers, two rear soundbar speakers, one amplified subwoofer, one 4-channel amplifier, mounting brackets and wiring harnesses
• Direct fit for a hassle-free installation, fitting perfectly into the select 2019-2023 Wrangler and Gladiator for seamless integration
• System is designed to withstand harsh outdoor environments
• Plug and Play design for easy installation
• Comes with all necessary mounting and installation hardware

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List price $2880.00
-17% $2,399.95

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• Includes two front speakers, two rear soundbar speakers, one amplified subwoofer, one 4-channel amplifier, mounting brackets and wiring harnesses
• Direct fit for a hassle-free installation, fitting perfectly into the select 2019-2023 Wrangler and Gladiator for seamless integration
• System is designed to withstand harsh outdoor environments
• Plug and Play design for easy installation
• Comes with all necessary mounting and installation hardware

Alpine PSS-23WRA2

Amplified Sound System Upgrade Kit for select 2018-2023 Wrangler (JL) and Gladiator

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Alpine PSS-23WRA2

Amplified Sound System Upgrade Kit for select 2018-2023 Wrangler (JL) and Gladiator

• System includes component tweeters, one amplified subwoofer, one 4-channel amplifier
• Direct fit for select 2018-2023 Wrangler (JL) and Gladiator
• Fits perfectly to vehicle with seamless integration
• System is designed to withstand harsh outdoor environments
• Plug and Play design for easy installation
• Comes with all necessary mounting and installation hardware

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Fits your Gladiator
List price $2040.00
-17% $1,699.95

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• System includes component tweeters, one amplified subwoofer, one 4-channel amplifier
• Direct fit for select 2018-2023 Wrangler (JL) and Gladiator
• Fits perfectly to vehicle with seamless integration
• System is designed to withstand harsh outdoor environments
• Plug and Play design for easy installation
• Comes with all necessary mounting and installation hardware

Limited time!

Alpine PWE-S8 8" Amplified Subwoofer

120W Compact Powered 8" Car Subwoofer for Under or Behind the Seat

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Alpine PWE-S8 8" Amplified Subwoofer

120W Compact Powered 8" Car Subwoofer for Under or Behind the Seat

• 8" Amplified Loaded Subwoofer System
• 120 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

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Universal Icon Universal – fits most vehicles.

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List price $480.00
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-27% $349.94

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Used from: $279.97

• 8" Amplified Loaded Subwoofer System
• 120 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

Alpine PWE-S8 8" Amplified Subwoofer (Open Box, Great)

120W Compact Powered 8" Car Subwoofer for Under or Behind the Seat

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Alpine PWE-S8 8" Amplified Subwoofer (Open Box, Great)

120W Compact Powered 8" Car Subwoofer for Under or Behind the Seat

• 8" Amplified Loaded Subwoofer System
• 120 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

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Universal Icon Universal – fits most vehicles.

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List price $480.00
-42% $279.97

In stock

Only 1 Left!

Add to Cart

• 8" Amplified Loaded Subwoofer System
• 120 watts RMS
• Built-In Class D Amplifier
• Variable Bass Boost
• Speaker-Level Inputs
• Wired Remote Bass Level Control

Lowest price in 30 days

Alpine PWE-S8 8" Amplified Subwoofer with Amplifier Wiring Kit

120W Compact Powered 8" Loaded Subwoofer Enclosure for Under or Behind the Seat

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Alpine PWE-S8 8" Amplified Subwoofer with Amplifier Wiring Kit

120W Compact Powered 8" Loaded Subwoofer Enclosure for Under or Behind the Seat

• Peak: 240 watts
• RMS: 120 watts
• 8" Woofer High-Excursion cone
• Built-in Class D Amplifier
• Frequency Response: 32-150 Hz
• Includes Belva 8 Gauge Amplifier Wiring Kit

Save 15% Off Package Deals at Checkout!
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Universal Icon Universal – fits most vehicles.

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List price $529.99
-34% $349.94

In stock

Only 1 Left!

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• Peak: 240 watts
• RMS: 120 watts
• 8" Woofer High-Excursion cone
• Built-in Class D Amplifier
• Frequency Response: 32-150 Hz
• Includes Belva 8 Gauge Amplifier Wiring Kit

 
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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
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    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.

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