MB Quart Rear Soundbar, 8" Speakers, Jeep Wrangler JL 18-23/Gladiator JT 20-23 - 422639
Upgrade your Jeep’s audio experience with the MB Quart MBQJ-48HRGB Rear Soundbar, engineered specifically for Jeep Wrangler JL (2018-2023) and Gladiator JT (2020-2023) models. Designed as a direct replacement for the factory rear soundbar, this system delivers powerful sound while fitting seamlessly into your Jeep’s interior. With plug-and-play OEM-style harnesses and a lightweight composite enclosure, installation is quick and simple with no custom fabrication required.
This rear soundbar is loaded with (4) 8-inch compression horn speakers paired with 1-inch titanium dome tweeters, delivering strong midrange performance and crisp high frequencies. Built with Y30 iron ferrite magnets, the drivers provide distortion-free audio that maintains clarity even at higher volumes or in rugged off-road conditions. Tuned specifically for Jeep cabins, the rear soundbar ensures immersive surround sound that enhances both music and voice clarity on every adventure.
Performance meets power with a frequency response of 20 Hz–24 kHz and 180 watts of peak handling. This wide range ensures deep, punchy bass, detailed mids, and crystal-clear highs that cut through wind and road noise. Integrated RGB LED lighting shines through the translucent speaker grilles, adding a custom look and vibrant color accents that elevate your Jeep’s interior style.
Durable enough for off-road conditions, the rear soundbar uses a rugged composite frame and powder-coated grille construction to withstand the elements. Designed to work seamlessly with MB Quart Stage Jeep audio systems, this soundbar is the perfect upgrade path for Jeep owners looking for a rear-channel solution that combines superior sound, rugged durability, and show-stopping style. Backed by MB Quart’s legacy of German audio engineering, it delivers precision sound and long-lasting reliability built for Jeep life.
Features
- Car audio rear soundbar engineered for Jeep Wrangler JL (2018-2023) and Gladiator JT (2020-2023) models
- Designed to replace and upgrade OEM Wrangler JL or Gladiator JT Soundbar
- **Requires any of the MB Quart STAGE 4 Jeep Wrangler JL / Gladiator JT Tuned Audio Systems or MBQJ-AMP-ACC-1 Line Output Converter Kit.**
- Includes (4) 8-inch compression horn speakers with 1-inch titanium dome tweeters for powerful mids and crisp highs
- Y30 iron ferrite magnets provide strong magnetic flux for distortion-free audio that stands up to tough off-road conditions
- Rated at 180 watts RMS / 360 watts peak power handling with 92 dB sensitivity for loud, dynamic sound
- Integrated RGB LED light system with translucent speaker grilles adds custom style and illumination to your Jeep’s interior
- Plug-and-play OEM-style harnesses and lightweight composite enclosure ensure simple installation in factory soundbar location with no custom fabrication required
- Optimized frequency response of 20 Hz – 24 kHz delivers deep bass, detailed midrange, and clean treble for a balanced surround audio experience
- Rugged construction with durable composite materials built to handle Jeep off-road environments and demanding conditions
- Color: Black
- Dimensions (L x W x H): 51 x 17.5 x 8.5 inches
- Weight: 36.4 pounds
What our Experts Think
Q&A
Q: What is the MB Quart 422639 Rear Soundbar?
A: It is a Jeep-specific overhead soundbar upgrade designed for Wrangler JL and Gladiator JT models, featuring four 8-inch coaxial speakers for improved volume, clarity, and full-range sound.
Q: Which Jeep models fit the MB Quart 422639 soundbar?
A: It fits Jeep Wrangler JL models from 2018-2023 and Jeep Gladiator JT models from 2020-2023.
Q: How powerful are the MB Quart 8-inch speakers?
A: The soundbar is rated at 140 watts peak power and 70 watts RMS, providing strong output for open-air Jeep driving conditions.
Q: What type of speakers are included?
A: The system includes four 8-inch coaxial speakers with 1-inch titanium dome tweeters for balanced mids and crisp high frequencies.
Q: Will this improve my Jeep’s factory audio system?
A: Yes. The larger speakers, tuned enclosure, and high-sensitivity design provide louder sound, improved bass response, clearer vocals, and better audio performance than many factory setups.
Q: Is the MB Quart 422639 easy to install?
A: Yes. It is designed as a factory-location upgrade with OEM-style harnesses and a lightweight composite enclosure for a cleaner installation.
Q: Does this soundbar include LED lighting?
A: The 422639 version is available with integrated RGB LED lighting features, adding customizable interior illumination through translucent speaker grilles.
Q: Is this soundbar suitable for off-road Jeep use?
A: Yes. Its rugged enclosure, durable speaker components, and high-output design are built for Jeep adventures and outdoor driving environments.
Q: Does the MB Quart 422639 replace the factory rear soundbar?
A: Yes. It is designed as a direct rear overhead soundbar upgrade for Jeep Wrangler JL and Gladiator JT models.
Maintenance Tips
Damage 
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