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MB Quart MBQJ-STG6A-1

800W Peak 6-Speaker Audio System Upgrade Kit for select 2018-2026 Gladiator and Wrangler (JL)

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• Includes two pairs of coaxial speakers, one loaded midbass enclosure, one 2-channel marine amplifier, AmpPRO interface and vehicle-specific harnesses and hardware
• Direct fit for a hassle-free installation, fitting perfectly into select 2018-2026 Gladiator and Wrangler (JL) for seamless integration
• System is designed to withstand harsh outdoor environments
• Plug and Play design for easy installation
• Comes with all necessary mounting and installation hardware

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List price $1999.99
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Description


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Authorized dealer

Product Details:

  • System includes one pair of 3.5" upper dash coaxial speakers, one pair of loaded 6.5" mid-bass speaker enclosures, one pair of 6x9" coaxial rear soundbar speakers, one 2-channel marine amplifier, AmpPRO interface, and vehicle-specific harnesses and hardware
  • Designed and engineered to match and compliment the factory fit and finish of your vehicle
  • Enclosures for speakers and/or subwoofer integrate with no loss of passenger space
  • Plug and Play design for easy installation
  • No drilling or cutting required
  • Total power: 800 watts
  • IPX-6 water resistant
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

3.5" Upper Dash Speaker Specifications (MB Quart JC1-108)

  • Pair of 3.5" coaxial speakers
  • Lightweight, durable pop paper-mica blend cone
  • Stamped steel frame designed for OEM fitment
  • Includes two 5" speaker harnesses
  • Power Handling:
    • Peak: 200 watts per pair / 100 watts each
    • RMS: 100 watts per pair / 50 watts each
  • 0.75" magnesium dome tweeters
  • Crossover: 6dB high-pass filter
  • Frequency Response: 100 - 22000 Hz
  • Sensitivity: 89 dB
  • MFR #: JC1-108

6,5" Lower Dash Mid-Bass Speaker Specifications

  • 6.5" mid-bass drivers
  • Includes a pair of custom-fit speaker enclosures (MB Quart JE1-116)
  • Includes a 7" wire harness with Molex plug and 27" wire harness in slip-on terminal
  • Power Handling:
    • Peak: 200 watts per pair / 100 watts each
    • RMS: 100 watts per pair / 50 watts each
  • Pop aerated paper and mica blend woofers
  • Rubber speaker surround
  • 3/4" titanium dome tweeters
  • 4 ohm impedance
  • Frequency Response: 75-22,000 Hz
  • Top-mount Depth: X-1/2"
  • Sensitivity: 89dB
  • MFR #: JW1-116E

6x9" Rear Soundbar Speaker Specifications (MB Quart JC1-169SB)

  • Pair of 2-way coaxial speakers
  • Lightweight, durable pop paper-mica blend cone
  • Replacement OEM match real speaker grill
  • Powder-coated mounting plate
  • Includes two 10" speaker harnesses
  • Power Handling:
    • Peak: 440 watts per pair / 220 watts each
    • RMS: 220 watts per pair / 110 watts each
  • 1" magnesium dome tweeters
  • Crossover: 6dB high-pass filter
  • Frequency Response: 45 - 23000 Hz
  • Sensitivity: 86 dB
  • MFR #: JC1-169SB

2-channel Marine Amplifier Specifications (MB Quart NA2-400.2RC)

  • Balanced Differential Inputs eliminate noise picked up by signal cables
  • Top-mounted control panel
  • Full Range Class-D technology
  • Wired remote bass level control included
  • 1 Pair RCA Nickel-Plated: High temperature impact resistant
  • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Power Specifications
    • 4 ohm: 100 watts x 2 channel
    • 2 ohm: 200 watts x 2 channel
  • Total RMS power output: 400 watts
  • Frequency Response: 20 Hz-20 kHz
  • Signal to Noise Ratio: 90 dB
  • Variable low-pass filter: 300Hz 12dB per Octave
  • Variable subsonic filter: 60 Hz
  • Variable Bass Boost: 12dB boost at 45Hz
  • MFR #: NA2-400.2RC

PAC AmpPRO Interface (PAC AP4-CH41)

  • Interface allows the inclusion of two amplifiers to your Jeep Wrangler JL or Gladiator JT with or without the factory amplifier
  • Plug-and-play installation
  • 5 channel RCA output
  • Amplifier turn-on trigger wire
  • Non-fading level control knob
  • Flat audio output for solid foundation
  • Retains uConnect, Bluetooth audio and all warning chimes
  • Prevents need for summing and DSP devices
  • Customized OE bass, mid and treble center frequency selection
  • Works with AmpPRO PC App (for Windows PC only)

Compatible Vehicles


Please use our Fitment Guide to determine specific compatibility for the submodel and audio features

The vehicle you have selected 1998 Toyota Tercel is not compatible. Change vehicle or See list of compatible similar products


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Specifications & Details


Package Specifications
Series
Stage 6 Series
Compatible vehicle types
Car/Truck/SUV/Van
Included Components
Two Pairs of Coaxial Speakers
Pair of Speakers in Custom-Fit Enclosures
Two Marine/Powersports Amplifiers
IPX Rating
IPX-6
Marine Certified
Yes
Speaker Specs & Details
Speaker specs and details
3.5" Coaxial Upper Dash Speakers, 6.5" Loaded Mid-bass Driver Enclosure and 6x9" 2-way Coaxial Speakers
Number of Speakers
6
Illumination
None
Speaker Grilles
Yes
Design
Full system
Amplifier Specs & Details
Amplifier specs and details
Two 400W Class D 2-Channel Amplifier
Number of Channels
2-Channel
Total Peak Power Output
400 watts
Total RMS Power Output
200 watts
Amplifier Class
D
Other Component Specs and Details
Other Component Details
Includes amplifier integration interface module (PAC AP4-CH41) and wiring harness kit (MBQJ-ACC-1)
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

MBQJ-STG6A-1

Weight:

25.02lbs

Internal SKU:

mbqjstg6a1

Internal Product ID:

187613

Customer Ratings & Reviews


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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.