The MB Quart MBQJK-STG2AH-1 is an 800 watt Jeep JK stereo upgrade for 2007-2018 Wrangler JK models running an aftermarket radio: two 6.5 inch convertible speakers with 1 inch titanium dome tweeters and two 400 watt Class D amplifiers, installed plug and play. It requires an aftermarket source unit and separate rear speakers or a soundbar.
The system is prewired, and MB Quart leaves room on the amplifier bracket to add the MBQJL-302 tailgate subwoofer later. Powder coated amplifier mounting plates are included for either the 4 or 2 seater Wrangler, per MB Quart. For the rear, MB Quart lists a second set of JS1-216JK speakers or an MBQJK-28CRGB / MBQJK-28C soundbar, sold separately.
It is a Jeep JK speaker upgrade and a Jeep JK amp in one kit: Jeep JK speakers up front, built in the same style as MB Quart's Jeep Wrangler JK speakers, plus two amplifiers. As Jeep JK front speakers they replace the factory units, and the kit becomes a Jeep JK sound system when you add a soundbar and tailgate sub. It is the most complete Jeep JK audio upgrade MB Quart lists, and among Jeep speakers and Jeep Wrangler speakers for the JK it is the amplified option.
Key Features
- Two 6.5 inch convertible speakers with 1 inch titanium dome tweeters and WideSphere tweeter technology
- 12dB external crossover network, shallow lightweight frames, fiber cones and Y35 iron ferrite magnets
- Tweeter mounting plates for the front on-dash or in-dash factory locations; midbass drivers drop into the factory 6.5 inch locations
- Two 400 watt full range, two channel Class D amplifiers (compact NA2 with on-board equalization)
- Powder coated amplifier mounting plates for either the 4 or 2 seater Wranglers
- Prewired with room on the amplifier bracket to add the MBQJL-302 tailgate subwoofer
Built To Solve: Underpowered Speakers in a Jeep Wrangler JK With an Aftermarket Radio
- A new head unit that cannot drive the factory or upgraded speakers loud enough
- Sound that gets lost with the top and doors off
- Wanting an amplified JK system that can grow into a subwoofer later
Best For: Jeep Wrangler JK Owners Building an Amplified System
- 2007-2018 Wrangler JK owners with an aftermarket source unit
- Owners planning to add an MB Quart JK soundbar and the MBQJL-302 tailgate subwoofer
- Not for factory-radio JKs: MB Quart lists an aftermarket source unit as required
Specifications
- Speakers: two 6.5 inch convertible with 1 inch titanium dome tweeters
- Speaker specs: crossover 12dB midrange / 6dB tweeter, frequency response 50Hz to 25kHz, sensitivity 87.7dB, 150W max / 75W RMS
- Amplifiers: two 400 watt full range, two channel Class D (compact NA2 with on-board equalization)
- Amp mounting: powder coated plates for either the 4 or 2 seater Wranglers
- Total system power: 800 watts
- Source unit: requires aftermarket source unit
- Rear speakers: not included (second JS1-216JK set or MBQJK-28CRGB / MBQJK-28C soundbar, sold separately)
- Listed weight: 24.25 lbs; listed dimensions: 19.25 x 14.75 x 14.5 in
- Install: basic hand tools
- Color: Black; warranty: 1 year
- MOPAR Part Number: 68729815AA
- Manufacturer Part Number: MBQJK-STG2AH-1
Fitment
MB Quart lists this product for:
- Jeep® Wrangler (JK) 2007-2018 All Models and Variants (requires aftermarket source unit)
MB Quart lists an aftermarket source unit as required.
This is a Jeep (on-road vehicle) audio product, not a UTV part. Confirm your model, model year and factory audio equipment against MB Quart's listing before ordering; fitment is not guaranteed on applications not listed.
FAQ
Does the MBQJK-STG2AH-1 work with the factory JK radio?
No. MB Quart lists it as requiring an aftermarket source unit.
Are rear speakers included?
No. MB Quart says the rear needs an additional set of JS1-216JK speakers or an MBQJK-28CRGB / MBQJK-28C soundbar, sold separately.
Does it fit every Jeep Wrangler JK?
MB Quart lists Jeep Wrangler (JK) 2007-2018, all models and variants, and includes amplifier mounting plates for either the 4 or 2 seater Wrangler.
Can I add a subwoofer later?
Yes. MB Quart says the Stage 2 system is prewired with room on the amplifier bracket for the MBQJL-302 tailgate subwoofer system, sold separately.
What are the speaker specs?
MB Quart lists 150W max / 75W RMS, 87.7dB sensitivity, 50Hz to 25kHz and a 12dB midrange / 6dB tweeter crossover.
How is this different from the JS1-216JK speakers alone?
The JS1-216JK is the speaker pair only. Stage 2 adds two 400 watt amplifiers, mounting plates and system wiring for an aftermarket radio.
Why MB Quart
MB Quart builds vehicle-tuned audio packages for the Jeep Wrangler JK, engineered around the factory mounting locations and wiring so the upgrade installs with basic hand tools instead of custom fabrication. MB Quart sells its Jeep kits in stages, so you can start with one piece and add matching speakers, subwoofers or a soundbar later.
Complete Your Jeep Wrangler JK Stage 2 Build
Confirm your JK has, or will have, an aftermarket radio. Then add rear sound with an MB Quart MBQJK-28CRGB or MBQJK-28C soundbar or a second JS1-216JK pair, and plan for the MBQJL-302 tailgate subwoofer. Questions? Contact Dunes 2 Dezert SXS before you buy.
