{"product_id":"mb-quart-jeep-wrangler-jl-oem-subwoofer-upgrade-package-400w-2018-plus","title":"MB Quart Jeep Wrangler JL OEM Subwoofer Upgrade Package, 400W (2018+)","description":"\u003cp\u003e\u003cstrong\u003eThe MB Quart MBQJL-SUBR-ACC-1 is a 400 watt Jeep JL subwoofer upgrade package for the 2018-current Wrangler JL with the factory premium subwoofer: it adds a 10 inch OEM subwoofer upgrade with a 400 watt amplifier to the factory radio and speakers through MB Quart's MBQJ-AMP-ACC-1 line output converter kit.\u003c\/strong\u003e MB Quart describes it as plug-and-play installation using OEM harnesses.\u003c\/p\u003e\n\u003cp\u003eMB Quart bundles 2 products in this package: MBQJ-AMP-ACC-1, MBQJL-SUBR-1. It is built for owners who want more output and bass without replacing the factory head unit or front speakers. Because the subwoofer reuses the factory premium subwoofer enclosure, this version only applies to Wranglers that have it; otherwise choose the MBQJL-302-ACC-1.\u003c\/p\u003e\n\u003cp\u003eAs a Jeep JL subwoofer upgrade package, it upgrades the factory sub without changing the radio. The MBQJL-SUBR-1 is a Jeep JL subwoofer and Jeep Wrangler JL subwoofer upgrade, an OEM subwoofer upgrade that is also a Jeep Wrangler subwoofer upgrade, so this Jeep subwoofer package is a Jeep JL audio upgrade and Jeep Wrangler subwoofer improvement at 400 watt total system power.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e4-channel line output converter (LOC) with signal harnesses for 2018-2023 and 2024-current Wrangler JL \/ Gladiator JT\u003c\/li\u003e\n\u003cli\u003ePower harness that is plug-and-play with up to three MB Quart NA2\/NA4 amplifiers, plus a powder coated mount for three amplifiers\u003c\/li\u003e\n\u003cli\u003e10 inch long-throw, high output subwoofer wired at 2 ohm that installs in the factory premium audio subwoofer enclosure and location\u003c\/li\u003e\n\u003cli\u003e400 watt high efficiency Class D subwoofer amplifier\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eBuilt To Solve: Missing Bass and Rear Output on the Factory Radio in the Jeep Wrangler JL\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFactory audio that lacks bass\u003c\/li\u003e\n\u003cli\u003eNo clean way to add amplifiers to the factory radio\u003c\/li\u003e\n\u003cli\u003eCut-and-splice wiring for aftermarket amplifiers\u003c\/li\u003e\n\u003cli\u003eWanting to keep the factory head unit and screen\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eBest For: 2018-current Wrangler JL Owners Keeping the Factory Radio and Speakers\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOwners who want to add a 10 inch OEM subwoofer upgrade without replacing the factory radio\u003c\/li\u003e\n\u003cli\u003eOnly Wranglers with the OEM premium audio subwoofer enclosure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePackage contents (per MB Quart): MBQJ-AMP-ACC-1 line output converter kit (4-channel LOC, signal and power harnesses, three-amp mount); MBQJL-SUBR-1 10 inch OEM subwoofer upgrade with 400 watt amplifier\u003c\/li\u003e\n\u003cli\u003eLine output converter: 4-channel, with signal harnesses for 2018-2023 and 2024-current model years\u003c\/li\u003e\n\u003cli\u003eAmplifier mount and power harness: up to three MB Quart NA2\/NA4 amplifiers\u003c\/li\u003e\n\u003cli\u003eSubwoofer: 10 inch, 2 ohm, frequency response 20Hz to 250Hz, sensitivity 87dB\u003c\/li\u003e\n\u003cli\u003eSubwoofer amplifier: 400 watt Class D\u003c\/li\u003e\n\u003cli\u003eMounting: uses the OEM premium audio subwoofer enclosure and location\u003c\/li\u003e\n\u003cli\u003eTotal system power: 400 watts\u003c\/li\u003e\n\u003cli\u003eDesigned to add amplified speakers or bass while keeping the factory radio and speakers, via the line output converter\u003c\/li\u003e\n\u003cli\u003eInstall: basic hand tools\u003c\/li\u003e\n\u003cli\u003eColor: Black; warranty: 1 year\u003c\/li\u003e\n\u003cli\u003eManufacturer Part Number: MBQJL-SUBR-ACC-1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eMB Quart lists this product for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eJeep® Wrangler (JL) 2018-Current (with the OEM premium audio subwoofer enclosure)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRequires the OEM premium audio subwoofer enclosure.\u003c\/p\u003e\n\u003cp\u003eThis 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.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eWhat is included in the MB Quart MBQJL-SUBR-ACC-1?\u003c\/h3\u003e\n\u003cp\u003eMB Quart lists MBQJ-AMP-ACC-1 line output converter kit (4-channel LOC, signal and power harnesses, three-amp mount); MBQJL-SUBR-1 10 inch OEM subwoofer upgrade with 400 watt amplifier.\u003c\/p\u003e\n\u003ch3\u003eWhich Jeeps does this package fit?\u003c\/h3\u003e\n\u003cp\u003eMB Quart lists Jeep® Wrangler (JL) 2018-Current (with the OEM premium audio subwoofer enclosure).\u003c\/p\u003e\n\u003ch3\u003eDoes it work with the factory radio?\u003c\/h3\u003e\n\u003cp\u003eYes. The MBQJ-AMP-ACC-1 line output converter kit takes the signal from the factory system and includes a power harness that is plug-and-play with up to three MB Quart NA2\/NA4 amplifiers.\u003c\/p\u003e\n\u003ch3\u003eDoes my Wrangler need the factory subwoofer for this package?\u003c\/h3\u003e\n\u003cp\u003eYes. The MBQJL-SUBR-1 subwoofer installs in the OEM premium audio subwoofer enclosure and location. Without that enclosure, MB Quart's MBQJL-302-ACC-1 uses the MBQJL-302 tailgate subwoofer instead.\u003c\/p\u003e\n\u003ch3\u003eHow does the MBQJL-SUBR-ACC-1 compare with the MBQJL-SSUBR-ACC-1?\u003c\/h3\u003e\n\u003cp\u003eThe MBQJL-SSUBR-ACC-1 is the related MB Quart accessory package with a different mix of soundbar and subwoofer. MB Quart's Stage packages instead replace the front speakers too, using the MBQJ-STG4A-1.\u003c\/p\u003e\n\u003ch3\u003eHow hard is the install?\u003c\/h3\u003e\n\u003cp\u003eMB Quart lists basic hand tools and plug-and-play installation using OEM harnesses. Follow the install manuals for each component.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhy MB Quart\u003c\/h2\u003e\n\u003cp\u003eMB Quart builds vehicle-tuned audio packages for the Jeep Wrangler JL, 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.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eComplete Your Jeep Wrangler JL Audio Package\u003c\/h2\u003e\n\u003cp\u003eBefore ordering this Jeep Wrangler JL package, confirm your model year on the Fitment list and that your Wrangler has the factory premium subwoofer enclosure. The amplification and line output converter kit are part of the package, so the factory radio stays in place. Questions about fitment? Contact Dunes 2 Dezert SXS before you buy.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is included in the MB Quart MBQJL-SUBR-ACC-1?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"MB Quart lists MBQJ-AMP-ACC-1 line output converter kit (4-channel LOC, signal and power harnesses, three-amp mount); MBQJL-SUBR-1 10 inch OEM subwoofer upgrade with 400 watt amplifier.\"}}, {\"@type\": \"Question\", \"name\": \"Which Jeeps does this package fit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"MB Quart lists Jeep® Wrangler (JL) 2018-Current (with the OEM premium audio subwoofer enclosure).\"}}, {\"@type\": \"Question\", \"name\": \"Does it work with the factory radio?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. 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