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
MBQJ-STG4A-1 800 Watt STAGE 4 Jeep® Wrangler (JL) / Gladiator (JT) Tuned Four Speakers System Upgrade for OEM Source Unit – MOPAR Part #: 68729812AA
MB Quart MBQJ-STG4A-1 Jeep® Wrangler (JL) / Gladiator (JT) Tuned Audio Package: Four Speaker 800 Watt STAGE 4 OEM Audio System Upgrade (Uses OEM Source Unit) (Requires Rear Speaker Kit or Soundbar).
$ 1,659.99
In stock
| Weight | 26 lbs |
|---|---|
| Dimensions | 22.24 × 18.34 × 10.59 in |
| 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. |
| Proposition 65 Notice | WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| 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. |
| 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. |
View/Download (22.6 MB) | MB Quart Jeep Vehicle Kit (MBQJ-STG4A-1/STG4AH-1) 2018-2023 Wrangler JL/Gladiator JT Assembly Manual (Rev01) |
|---|---|
View/Download (33.9 MB) | MB Quart Jeep Vehicle Kit (MBQJ-STG4A-1) 2024 Wrangler JL/Gladiator JT Installation Manual (Rev1) |
View/Download (3.4 MB) | Technical Service Bulletin - 2024+ Wrangler(JL) & Gladiator(JT) Amp Mounting Bracket for Powered Seat Models |

















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