The MB Quart MBQBRO-SUBR-1 is a Bronco subwoofer upgrade for 2021-2024 models with the OEM B&O audio system: an 8 inch long-throw sub wired at 2 ohms, powered by a 400 watt Class D amplifier, that uses the factory B&O subwoofer enclosure and location.
MB Quart says it is plug and play with any of its Stage 6 Ford Bronco tuned audio systems. If you are not pairing it with an MB Quart tuned audio system, additional parts are needed and MB Quart recommends consulting a professional installer.
If the factory Bronco B&O subwoofer is the weak link, this Ford Bronco subwoofer replacement keeps the stock location while adding a real Bronco amp. It is the Bronco subwoofer to pick when you want a Bronco B&O upgrade without losing space, and its Bronco amplifier and MB Quart subwoofer pairing makes it a natural Bronco audio upgrade alongside an MB Quart Bronco Stage 6 kit.
Key Features
- 8 inch application specific long-throw high output subwoofer, 2 ohm
- 400 watt high efficiency Class D NA2 amplifier with on-board equalization
- Uses the OEM B&O subwoofer enclosure, location and hardware
- Powder coated amplifier mounting plate
- Subwoofer to amplifier harness
- Plug and play with MB Quart Stage 6 Ford Bronco systems
Built To Solve: A Weak or Silent Factory Sub in the Ford Bronco
- Factory B&O bass that cannot keep up with an upgraded system
- Stage 6 B&O installs, where MB Quart says the factory sub stops being functional
- Losing cargo space to a bulky aftermarket box
- Custom amp wiring for a sub upgrade
Best For: 2021-2024 Ford Bronco B&O Owners Adding Bass
- 2021-2024 Bronco owners with the OEM B&O audio system
- Owners installing an MB Quart Stage 6 Bronco system
- Owners who want to keep the factory sub location
- For a larger 12 inch option, see the MBQBRO-302 tailgate subwoofer
Specifications
- Subwoofer: 8 inch long-throw high output, 2 ohm impedance
- Frequency response: 50Hz to 250Hz; sensitivity: 89dB
- Amplifier: 400 watt Class D NA2 with on-board equalization; powder coated mounting plate
- Total system power: 400 watts
- Mounting: OEM B&O subwoofer enclosure and location, uses OEM hardware
- Harness: subwoofer to amplifier harness
- Install: basic hand tools
- Color: Black; warranty: 1 year
- Listed weight: 10.6 lbs; listed dimensions: 12.25 x 12.25 x 11.38 in
- Manufacturer Part Number: MBQBRO-SUBR-1
Fitment
MB Quart lists the MBQBRO-SUBR-1 for the Ford Bronco 2021-2024 with the OEM B&O audio system. It is plug and play with MB Quart Stage 6 Ford Bronco systems; other setups need additional parts. Fitment is not guaranteed on applications not listed by MB Quart.
FAQ
Which Bronco does the MBQBRO-SUBR-1 fit?
MB Quart lists the Ford Bronco 2021-2024 with the OEM B&O audio system.
Do I need an MB Quart Stage 6 kit?
It is plug and play with any MB Quart Stage 6 Ford Bronco system. MB Quart says additional parts are needed otherwise and recommends a professional installer.
Does it replace the factory sub box?
No. It uses the OEM B&O subwoofer enclosure, location and hardware.
What powers the subwoofer?
A 400 watt Class D NA2 amplifier with on-board equalization, included with the kit.
How does it compare with the MBQBRO-302?
The MBQBRO-SUBR-1 is an 8 inch sub in the factory location. The MBQBRO-302 is a 12 inch sub in a ported enclosure on the interior tailgate panel, also with a 400 watt amplifier.
Is there an install video?
Yes. MB Quart's official channel has an MBQBRO-SUBR-1 installation video, embedded below, and MB Quart publishes installation manuals for Broncos with and without B&O.
Why MB Quart
MB Quart builds its Ford Tuned audio packages around a specific truck rather than adapting universal gear: speakers drop into factory locations, amplifiers sit on powder coated mounting plates, and vehicle specific harnesses keep the install plug-and-play. This subwoofer upgrade carries a 1 year MB Quart warranty.
Pair This Bronco Subwoofer Upgrade With a Stage 6 System
Confirm your Bronco is a 2021-2024 with the OEM B&O system before ordering this subwoofer upgrade. It plugs straight into MB Quart's Stage 6 Bronco kits; without one, plan for additional parts and a professional installer. Questions? Contact Dunes 2 Dezert SXS before you buy.
Installation Video
MB Quart MBQBRO-SUBR-1 Ford Bronco 400 Watt 8" OEM Subwoofer Upgrade Installation Video (official MB Quart video).
