Upgrade your Jeep Wrangler JL audio system with the MB Quart MBQJL-SUBR-1 Subwoofer Upgrade, engineered for 2018-current models equipped with the OEM premium audio system. Designed as a direct replacement upgrade, this system enhances factory bass performance while maintaining a clean, OEM-style installation. By utilizing the factory subwoofer location, it delivers improved sound without altering your vehicle’s interior layout.
This system features a 10 inch application-specific long-throw subwoofer designed for high output and deep bass response. Tuned for optimal low-frequency performance, it enhances music playback with stronger, more defined bass while maintaining overall system balance. The subwoofer is designed to integrate seamlessly with the factory enclosure, ensuring proper fitment and consistent performance.
Powered by a 400 watt Class-D amplifier, the system delivers efficient and reliable power with minimal heat and low current draw. The compact amplifier mounts securely using the included mounting plate, keeping installation clean and space-efficient. Onboard equalization helps optimize output for improved bass response and clarity.
Installation is simple with the included plug-and-play harness, allowing quick connection between the subwoofer and amplifier. Built for durability and performance, this upgrade provides Jeep owners with a powerful, factory-integrated solution for enhancing bass and overall audio quality.
- Car audio subwoofer upgrade designed for Jeep Wrangler JL 2018-current models with OEM premium audio system
- Includes 10 inch subwoofer with long-throw high output design for strong bass and improved low-frequency performance
- Powered by a 400 watt Class-D amplifier delivering efficient, clean power with low current draw
- Uses OEM subwoofer enclosure location for seamless integration and factory-style installation
- Plug-and-play harness connects subwoofer to amplifier for simple and reliable setup
- Compact amplifier design mounts securely using included amp plate for clean installation
- Tuned system enhances bass response while maintaining balanced overall sound performance
- Color: Black
- Dimensions (L x W x H): 13.0 x 12.5 x 8.25 inches
- Weight: 12.80 pounds
- Manufacturer warranty: 1-year warranty
Questions? We’ve Got Answers.
Helpful answers about product features, setup, and more
How big is the subwoofer?
The subwoofer measures 13.0 x 12.5 x 8.25 inches (length x width x height). Use these measurements to plan mounting, placement, or transport for your setup.
What is the subwoofer used for?
The subwoofer is used for live sound, DJ setups, home audio, or event production, depending on configuration. It connects with a typical audio chain — source, mixer or controller, and amplification — to produce sound for the intended environment.
Is there a warranty on the subwoofer?
Yes. The subwoofer is backed by 1-year manufacturer warranty. Coverage details and claim procedures are provided by the manufacturer; retain your order receipt as proof of purchase if you ever need to file a claim.
Who makes the subwoofer?
The subwoofer is made by MB Quart. MB Quart produces this item as part of its lineup, and product details such as specifications, included accessories, and warranty terms are set by the brand.
How much does the subwoofer weigh?
The subwoofer weighs approximately 12.80 pounds. Use this figure to plan transport, rigging, or mounting requirements for your setup.
What should I know about the subwoofer before buying?
The subwoofer from MB Quart brings together a few practical features worth highlighting:
- 1-year manufacturer warranty
Review the product description and specifications to confirm it matches your specific needs before placing your order.


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