MB Quart MBQJ-STG4A-1 800 watt four speaker STAGE 4 audio system with two 3.5 inch coaxial speakers, two 6.5 inch midbass drivers, powered by two 400 watt Class-D amplifiers (Uses OEM source unit, and requires rear speaker kit or soundbar). MOPAR Part #: 68729812AA
General Features:
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Compatible Vehicle Fitment
Jeep® Wrangler (JL) 2018-Current with OEM radio, Jeep® Gladiator (JT) 2020-Current with OEM radio -
Source Unit Features
Uses OEM source unit. -
Speaker Features
Tweeter: 0.75" titanium dome (dash speaker), Crossover: 12db midrange / 6db tweeter, Frequency Response: 75Hz to 23kHz, Sensitivity: 89db, 300W Maxx / 150W RMS. -
Amplifier Features
400 watt high efficiency Class-D compact NA2 amplifiers with on-board equalization. -
Mount / Harness
Vehicle Specific Wiring and Harness. Simple “no mistakes” plug and play OEM style installation. AAMPRO plug and play interface allows use with the OEM Source Unit. -
Time and Tools
Basic hand tools.
Specifications:
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Type
Vehicle Kit -
Brand
MB Quart -
Series
Jeep Gladiator Tuned, Jeep Wrangler Tuned -
Category
Mobile -
Condition
New -
Color
Black -
Warranty
1 Year -
Compatible Vehicles
Jeep® Gladiator (JT) 2020-Current, Jeep® Wrangler (JL) 2018-Current, Jeep® Gladiator (JT) 2020-2023, Jeep® Gladiator (JT) 2024-Current, Jeep® Wrangler (JL) 2018-2023, Jeep® Wrangler (JL) 2024-Current -
Vehicle Kit Total System Power (watts)
800 - Additional Details See Kit Inclusions and Features & Benefits for product components and details.
Kit Inclusions:
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Front Speakers
Two 3.5 inch coaxial speakers with 0.75 inch magnesium dome tweeters, Two 6.5 inch midbass drivers: Lightweight yet durable pop paper cone with mica blend. -
Front Speakers Mounting
Speaker Enclosure: Composite construction with integrated OEM module mounting location. Drop in direct replacement for factory enclosures. -
Full Range Amplifier
Two 400 Watt Full Range, Two Channel Class D Amplifiers: Big power, small chassis design with low current draw. -
Full Range Amplifier Mounting
Powder coated mounting plate.
Warning:
This product can expose you to chemicals known to the State of California to cause cancer. For more information, go to P65Warnings.ca.



















