MB Quart 400 Watt Jeep® Wrangler (JL) Tuned OEM Subwoofer Upgrade (MBQJL-SUBR-1) I '18-'25 Jeep JL Wranglers
Free US Standard Shipping, 30-Day Returns, 1-Year Warranty**This item is currently on back-order till the last week of August 2025** To be used as an add on with the MB Quart 800-Watt Stage 4 System: This product includes the subwoofer and amplifier, however it is meant to pair with the full Stage 4 product which includes the amp bracket and all wiring. Stage 4 Bundle: LINK MB Quart Jeep® Wrangler (JL) Tuned Audio Package: 400-Watt Complete OEM Premium 10 Inch Subwoofer Upgrade. MB Quart 10" subwoofer upgrade system powered by a 400-watt class-d amplifier. This system upgrades the OEM premium audio subwoofer. JEEP® READY! Easy Plug and Play Installation Uses OEM premium subwoofer system enclosure and hardware. Connecting to a stock head unit? We have you covered with the option of adding the PAC AAMPRO CH41 module which is the interface that allows for you to connect the amp RCAs to the factory head unit. Installation: Plug & Play with no splicing or cutting wires. Compatibil