Skip to product information
1 of 9

MB Quart Tuned 400 Watt OEM Subwoofer Upgrade | Jeep® Wrangler (JL)

MB Quart Tuned 400 Watt OEM Subwoofer Upgrade | Jeep® Wrangler (JL)

Regular price $399.99
Regular price Sale price $399.99
Sale Sold out
Shipping calculated at checkout.

MB Quart Jeep® Wrangler (JL) Tuned Audio Package: 400 Watt Complete OEM Premium 10 Inch Subwoofer Upgrade.

    FITS: 2018-2023 Jeep JL Wrangler

    • Plug & Play only when combined with MB Quart Stage 6 Kit
    • Free Lower 48 Shipping
    • 60-Day Returns
    • 1-Year Warranty
    • Lead Time: 1 business day or less
View full details
Plug & Play Jeep Audio We have easy audio solutions for your Jeep Wrangler & Gladiator
High-Quality Parts This is no jungle. Only the best parts for your Jeep make it here.
Satisfaction Promise We will always have your back before, during and after your purchase.



MB Quart 10″ subwoofer upgrade system powered by a 400 watt class-d amplifier. This system upgrades the OEM premium audio subwoofer.

Manufacturers Part Number: MBQJL-SUBR-1
Instruction Manual: Assembly Instructions

Details & Specifications

  • Weight: 12.8 lbs
  • Dimensions: 13 × 12.5 × 8.25 in
  • Type: Vehicle Kit
  • Brand: MB Quart
  • Series: Jeep Wrangler Tuned
  • Category: Mobile
  • Condition: New
  • Color: Black
  • Warranty: 1 year
  • Compatible Vehicles: Jeep® Wrangler (JL) 2018-2023
  • Additional details: See Kit Inclusions and Features & Benefits for product components and details.
  • Proposition 65 Notice: WARNING: This product can expose you to chemicals including LEAD, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

Kit Inclusions

  • Subwoofer: 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.
  • Subwoofer Mounting: Speaker Enclosure: Composite construction with integrated OEM module mounting location. Drop in direct replacement for factory enclosures.
  • Subwoofer Amplifier: 400 Watt High Efficiency, Class D Amplifier: Big power, small chassis design with low current draw.
  • Subwoofer Amplifier Mounting: Mounts to amp plate included with MBQJ-STG6A-1 and MBQJ-STG6AH-1.
  • Harnessing: Subwoofer to amplifier harness.
  • Accessories: Replacement MB Quart Logo Badge for the subwoofer enclosure

Features & Benefits

  • Compatible Vehicle Fitment: Jeep® Wrangler (JL) 2018-Current
  • Amplifier Features: 400 watt high efficiency Class-D compact NA2 amplifiers with on-board equalization
  • Subwoofer Features: 10 inch application specific long-throw high output subwoofer: Frequency Response - 20Hz to 250Hz, Sensitivity - 87db, Impedance - 2 Ohm.
  • Mount / Harness: Easy Installation Uses OEM premium subwoofer system enclosure and hardware.
  • Time and Tools: Basic hand tools.

Product Highlights



Ask A Question