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Discontinued All MB Quart Car Amplifiers

Enjoy the full spectrum of powerful sound with MB Quart's range of All Car Amplifiers.

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MB Quart RM440.4

440W 4-Channel Reference MYKRO Series Hybrid Class D Full-Range Car Power Amplifier (RM4404)

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440W 4-Channel Reference MYKRO Series Hybrid Class D Full-Range Car Power Amplifier (RM4404)

• 75W x 4-Chan. @ 4 ohm
• 110W x 4-Chan. @ 2 ohm
• 220W x 2 Chan. @ 4 ohm
• 4-Way System Protection
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• FLUID-FETS Circuit for Smooth Sound Quality

• 75W x 4-Chan. @ 4 ohm
• 110W x 4-Chan. @ 2 ohm
• 220W x 2 Chan. @ 4 ohm
• 4-Way System Protection
• 4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• FLUID-FETS Circuit for Smooth Sound Quality

MB Quart DA1-600.4

600W 4-Channel Discus Series Full Range Car Amplifier

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600W 4-Channel Discus Series Full Range Car Amplifier

• RMS: 75W x 4 @ 4 ohm, 150 x 4 @ 2 ohm, Bridged: 300W x 2 @ 4 ohm
• Total Peak Power: 600W
• Variable Low-Pass & High-Pass Filters
• Bass Boost: 0 ~ 12 dB
• Focused mass aluminum heat sinks
• 9.00" W x 19.37" L x 2.20" H

• RMS: 75W x 4 @ 4 ohm, 150 x 4 @ 2 ohm, Bridged: 300W x 2 @ 4 ohm
• Total Peak Power: 600W
• Variable Low-Pass & High-Pass Filters
• Bass Boost: 0 ~ 12 dB
• Focused mass aluminum heat sinks
• 9.00" W x 19.37" L x 2.20" H

MB Quart ONX1.1000D (Factory Refurbished)

1000W RMS ONYX Series Class D Monoblock Amplifier (ONX-1.1000D)

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1000W RMS ONYX Series Class D Monoblock Amplifier (ONX-1.1000D)

• Item Condition: Factory Refurbished
• ONYX Series Monoblock Class D Car Amplifier • 1000W x 1 Chan @ 1 Ohm • 750W x 1 Chan @ 2 Ohm • Dual Speaker Terminals • Preamp RCA Outputs • 4-Way System Protection Circuitry • Piano Black Gloss Finish

• Item Condition: Factory Refurbished
• ONYX Series Monoblock Class D Car Amplifier • 1000W x 1 Chan @ 1 Ohm • 750W x 1 Chan @ 2 Ohm • Dual Speaker Terminals • Preamp RCA Outputs • 4-Way System Protection Circuitry • Piano Black Gloss Finish

MB Quart RM740.5

740W Max 5-Channel Reference MYKRO Series Hybrid Class D Full-Range Car Power Amplifier

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740W Max 5-Channel Reference MYKRO Series Hybrid Class D Full-Range Car Power Amplifier

• 75W x 4 Chan. @ 4 ohm
• 110W x 4 Chan. @ 2 ohm
• 220W x 2 Chan. @ 4 ohm
• 4-Way System Protection
• 5/4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• FLUID-FETS Circuit for Smooth Sound Quality

• 75W x 4 Chan. @ 4 ohm
• 110W x 4 Chan. @ 2 ohm
• 220W x 2 Chan. @ 4 ohm
• 4-Way System Protection
• 5/4/3/2/1 Channel Operation
• 4 Gauge Power and Ground Inputs
• FLUID-FETS Circuit for Smooth Sound Quality

MB Quart ONX4.80 (Factory Refurbished)

4-Channel ONYX Series Car Amplifier (ONX-4.80)

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4-Channel ONYX Series Car Amplifier (ONX-4.80)

ONYX Series 4-Channel Class A/B Car Amplifier • 160W x 4 Chan @ 2 Ohm • 80W x 4 Chan @ 4 Ohm • Unbalanced RCA Input Jack • Preamp RCA Outputs • 4-Way System Protection Circuitry • Piano Black Gloss Finish

ONYX Series 4-Channel Class A/B Car Amplifier • 160W x 4 Chan @ 2 Ohm • 80W x 4 Chan @ 4 Ohm • Unbalanced RCA Input Jack • Preamp RCA Outputs • 4-Way System Protection Circuitry • Piano Black Gloss Finish

MB Quart FX1.700-RB (Factory Refurbished)

700 Watt RMS Formula Series Monoblock Car Amplifier

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700 Watt RMS Formula Series Monoblock Car Amplifier

• 350 Watts RMS x 1 @ 4 ohm
• 700 Watts RMS x 1 @ 2 ohm
• Frequency Response: 10 - 300 Hz
• Wired remote bass level control included
• Variable Bass Boost: 0 to +9 dB bass boost at 45 Hz

• 350 Watts RMS x 1 @ 4 ohm
• 700 Watts RMS x 1 @ 2 ohm
• Frequency Response: 10 - 300 Hz
• Wired remote bass level control included
• Variable Bass Boost: 0 to +9 dB bass boost at 45 Hz

MB Quart XA1-1500.1D_XKIT42

1500W Monoblock X-Line Series Class D Amplifier + FREE 100% Copper, 2-Chan. True Spec 4 Gauge Amp Installation Kit

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1500W Monoblock X-Line Series Class D Amplifier + FREE 100% Copper, 2-Chan. True Spec 4 Gauge Amp Installation Kit

• RMS: 325W x 1 @ 4 ohm, 750W x 1 @ 2 ohm, 1500W x 1 @ 1 ohm
• Fluid-FETS hand selected insulated MOSFETS
• Q-Stasis preamp stage with wide input range
• Elaborate preamplifier with extended control
• Frequency Response: 10 - 300 Hz
• 4 Gauge 2-Channel X-Series Complete Amplifier Installation Kit

• RMS: 325W x 1 @ 4 ohm, 750W x 1 @ 2 ohm, 1500W x 1 @ 1 ohm
• Fluid-FETS hand selected insulated MOSFETS
• Q-Stasis preamp stage with wide input range
• Elaborate preamplifier with extended control
• Frequency Response: 10 - 300 Hz
• 4 Gauge 2-Channel X-Series Complete Amplifier Installation Kit

MB Quart FX1.600 (Factory Refurbished)

600W RMS 1-Channel Monoblock Formula Series Amplifier

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600W RMS 1-Channel Monoblock Formula Series Amplifier

Formula Series Monoblock Car Amplifier • 300W at 4 Ohm • 600W at 2 Ohm • PWM MOSFET Power Supply • MB QR-2 Wired REMOTE • Variable Low Pass Filer • Variable Bass Boost • 4 Way Protection Circuitry

Formula Series Monoblock Car Amplifier • 300W at 4 Ohm • 600W at 2 Ohm • PWM MOSFET Power Supply • MB QR-2 Wired REMOTE • Variable Low Pass Filer • Variable Bass Boost • 4 Way Protection Circuitry

MB Quart ONX4.80/500 (Factory Refurbished)

980W RMS ONYX Series 5-Channel Amplifier (ONX-4.80/500)

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980W RMS ONYX Series 5-Channel Amplifier (ONX-4.80/500)

• ONYX Series 5-Channel Car Amplifier
• 60W x 4 Chan @ 4 Ohm
• 120W x 4 Chan @ 2 Ohm
• MOSFET PWM Power Supply
• LED Power Indicators
• 4-Way Protection
• Aluminum Alloy Heatsink
• 3 Sets Of RCA Inputs

• ONYX Series 5-Channel Car Amplifier
• 60W x 4 Chan @ 4 Ohm
• 120W x 4 Chan @ 2 Ohm
• MOSFET PWM Power Supply
• LED Power Indicators
• 4-Way Protection
• Aluminum Alloy Heatsink
• 3 Sets Of RCA Inputs

MB Quart RA1500.1 OPEN BOX COMPLETE

1500W Class D 1-Channel Monoblock Reference Series Amplifier

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1500W Class D 1-Channel Monoblock Reference Series Amplifier

  • Item Condition: Open box complete
  • • Peak: 500W x 1 @ 4 ohm, 1000W x 1 @ 2 ohm, 1500W x 1 @ 1 ohm
    • Total Peak Power: 1500W
    • Built-In System Diagnostics
    • Variable Bass EQ: 0 to +10 dB at 45 Hz
    • Class D Circuitry
    • Dimensions: 8-5/16"W x 15-3/4"D x 2-3/8"H

  • Item Condition: Open box complete
  • • Peak: 500W x 1 @ 4 ohm, 1000W x 1 @ 2 ohm, 1500W x 1 @ 1 ohm
    • Total Peak Power: 1500W
    • Built-In System Diagnostics
    • Variable Bass EQ: 0 to +10 dB at 45 Hz
    • Class D Circuitry
    • Dimensions: 8-5/16"W x 15-3/4"D x 2-3/8"H

    MB Quart XA1-1000.1D_XKIT42

    1000W Monoblock X-Line Series Class D Amplifier + FREE 100% Copper, 2-Chan. True Spec 4 Gauge Amp Installation Kit

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    1000W Monoblock X-Line Series Class D Amplifier + FREE 100% Copper, 2-Chan. True Spec 4 Gauge Amp Installation Kit

    • Peak : 250W x 1 @ 4 ohm, 500W x 1 @ 2 ohm, 1000W x 1 @ 1 ohm
    • Fluid-FETS hand selected insulated MOSFETS
    • Q-Stasis preamp stage with wide input range
    • Elaborate preamplifier with extended control
    • Frequency Response: 10 - 300 Hz
    • 4 Gauge 2-Channel X-Series Complete Amplifier Installation Kit

    • Peak : 250W x 1 @ 4 ohm, 500W x 1 @ 2 ohm, 1000W x 1 @ 1 ohm
    • Fluid-FETS hand selected insulated MOSFETS
    • Q-Stasis preamp stage with wide input range
    • Elaborate preamplifier with extended control
    • Frequency Response: 10 - 300 Hz
    • 4 Gauge 2-Channel X-Series Complete Amplifier Installation Kit

    MB Quart OA500.1 (Factory Refurbished)

    500W Onyx Series Class AB 1-Channel Monoblock Amplifier

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    500W Onyx Series Class AB 1-Channel Monoblock Amplifier

    • 250 Watts RMS x 1 @ 4 ohm
    • 500 Watts RMS x 1 @ 2 ohm
    • Frequency Response: 10 - 300 Hz
    • Wired remote bass level control included
    • Variable Bass Boost: 0 to +12 dB bass boost at 45 Hz
    • Dimensions: 9.45" W x 11.81" L x 2.23" H

    • 250 Watts RMS x 1 @ 4 ohm
    • 500 Watts RMS x 1 @ 2 ohm
    • Frequency Response: 10 - 300 Hz
    • Wired remote bass level control included
    • Variable Bass Boost: 0 to +12 dB bass boost at 45 Hz
    • Dimensions: 9.45" W x 11.81" L x 2.23" H

    EXCLUSIVE

    800W MB Quart + Alpine Amplified Speaker Combo

    MB Quart Onyx Series 4-Channel Amplifier w/ 2 Pairs of Alpine Type-R 6x8" Coaxial Speakers and Amp Wiring Kit

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    MB Quart Onyx Series 4-Channel Amplifier w/ 2 Pairs of Alpine Type-R 6x8" Coaxial Speakers and Amp Wiring Kit

    • MB Quart OA800.4 4-Channel Onyx Full Range Amplifier
    • 100W x 4-Chan. @ 4 ohm, 200W x 4-Chan. @ 2 ohm, 400W x 2 Chan. @ 4 ohm
    • 2 Pairs of Alpine SPR-68 6" x 8" Type-R Coaxial Speakers
    • Peak Power: 300W, RMS Power: 100W (Each)
    • Belva BAK44 Complete 4 Gauge Amplifier Wiring Kit

    • MB Quart OA800.4 4-Channel Onyx Full Range Amplifier
    • 100W x 4-Chan. @ 4 ohm, 200W x 4-Chan. @ 2 ohm, 400W x 2 Chan. @ 4 ohm
    • 2 Pairs of Alpine SPR-68 6" x 8" Type-R Coaxial Speakers
    • Peak Power: 300W, RMS Power: 100W (Each)
    • Belva BAK44 Complete 4 Gauge Amplifier Wiring Kit

    MB Quart OA800.4 (Factory Refurbished)

    800W 4-Channel Onyx Series Class SQ Full Range Bridgeable Power Amplifier

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    800W 4-Channel Onyx Series Class SQ Full Range Bridgeable Power Amplifier

    • 100W x 4-Chan. @ 4 ohm
    • 200W x 4-Chan. @ 2 ohm
    • 400W x 2 Chan. @ 4 ohm
    • 3-Way System Protection
    • 4/3/2/1 Channel Operation
    • 4 Gauge Power and Ground Inputs
    • FLUID-FETS Circuit for Smooth Sound Quality

    • 100W x 4-Chan. @ 4 ohm
    • 200W x 4-Chan. @ 2 ohm
    • 400W x 2 Chan. @ 4 ohm
    • 3-Way System Protection
    • 4/3/2/1 Channel Operation
    • 4 Gauge Power and Ground Inputs
    • FLUID-FETS Circuit for Smooth Sound Quality

    MB Quart OA240.2-OPEN BOX

    240W Max 2-Channel Onyx Series Stereo/Bridgeable Power Amplifier

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    240W Max 2-Channel Onyx Series Stereo/Bridgeable Power Amplifier

    • 60W x 2 Chan. @ 4 ohm
    • 120W x 2 Chan. @ 2 ohm
    • 240W x 1 Chan. @ 4 ohm
    • 3-Way System Protection
    • 2/1 Channel Operation
    • 8 Gauge Power and Ground Inputs
    • FLUID-FETS Circuit for Smooth Sound Quality

    • 60W x 2 Chan. @ 4 ohm
    • 120W x 2 Chan. @ 2 ohm
    • 240W x 1 Chan. @ 4 ohm
    • 3-Way System Protection
    • 2/1 Channel Operation
    • 8 Gauge Power and Ground Inputs
    • FLUID-FETS Circuit for Smooth Sound Quality

    MB Quart OA1550.1D OPEN BOX COMPLETE

    1500W Mono Block Onyx Series Class D Amplifier

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    1500W Mono Block Onyx Series Class D Amplifier

    • RMS: 475W x 1 @ 4 ohm, 750W x 1 @ 2 ohm, 1000W x 1 @ 1 ohm
    • Total Peak Power: 1000W
    • Fluid-Fets MOSFET Power Supply
    • Q-Stasis Pre-Amplifier Stage
    • Heavy Duty Aluminum Alloy Heat-Sink
    • Dimensions: 9.50"W x 14.41"L x 2.34"H

    • RMS: 475W x 1 @ 4 ohm, 750W x 1 @ 2 ohm, 1000W x 1 @ 1 ohm
    • Total Peak Power: 1000W
    • Fluid-Fets MOSFET Power Supply
    • Q-Stasis Pre-Amplifier Stage
    • Heavy Duty Aluminum Alloy Heat-Sink
    • Dimensions: 9.50"W x 14.41"L x 2.34"H

    MB Quart RA1000.1 OPEN BOX COMPLETE

    1000W Class D 1-Channel Monoblock Reference Series Amplifier

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    1000W Class D 1-Channel Monoblock Reference Series Amplifier

    Item is used and has been installed
    • Peak: 475W x 1 @ 4 ohm, 750W x 1 @ 2 ohm, 1000W x 1 @ 1 ohm
    • Total Peak Power: 1000W
    • Built-In System Diagnostics
    • Variable Bass EQ: 0 to +10 dB at 45 Hz
    • Class D Circuitry
    • Dimensions: 8-5/16"W x 15-1/2"D x 2-3/8"H

    Item is used and has been installed
    • Peak: 475W x 1 @ 4 ohm, 750W x 1 @ 2 ohm, 1000W x 1 @ 1 ohm
    • Total Peak Power: 1000W
    • Built-In System Diagnostics
    • Variable Bass EQ: 0 to +10 dB at 45 Hz
    • Class D Circuitry
    • Dimensions: 8-5/16"W x 15-1/2"D x 2-3/8"H

    MB Quart ONX1.2000D (Factory Refurbished)

    2000W ONYX Series Class D Monoblock Amplifier

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    2000W ONYX Series Class D Monoblock Amplifier

    • Peak: 650W x 1 @ 4 ohm, 1300W x 1 @ 2 ohm, 2000W x 1 @ 1 ohm
    • Total Peak Power: 2000W
    • Wired Bass Remote Included
    • Bass Boost: 0-10 dB
    • 1 Pair of Preamp Outputs
    • Dimensions: 14-7/8"L x 9"W x 2-1/2"H

    • Peak: 650W x 1 @ 4 ohm, 1300W x 1 @ 2 ohm, 2000W x 1 @ 1 ohm
    • Total Peak Power: 2000W
    • Wired Bass Remote Included
    • Bass Boost: 0-10 dB
    • 1 Pair of Preamp Outputs
    • Dimensions: 14-7/8"L x 9"W x 2-1/2"H

    MB Quart RA2000.1 OPEN BOX COMPLETE

    2000W Class D 1-Channel Monoblock Reference Series Amplifier

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    2000W Class D 1-Channel Monoblock Reference Series Amplifier

    Used and previously installed
    • Peak: 650W x 1 @ 4 ohm, 1300W x 1 @ 2 ohm, 2000W x 1 @ 1 ohm
    • Total Peak Power: 4000W
    • Built-In System Diagnostics
    • Variable Bass EQ: 0 to +10 dB at 45 Hz
    • Class D Circuitry
    • Dimensions: 8-5/16"W x 20-1/2"D x 2-3/8"H

    Used and previously installed
    • Peak: 650W x 1 @ 4 ohm, 1300W x 1 @ 2 ohm, 2000W x 1 @ 1 ohm
    • Total Peak Power: 4000W
    • Built-In System Diagnostics
    • Variable Bass EQ: 0 to +10 dB at 45 Hz
    • Class D Circuitry
    • Dimensions: 8-5/16"W x 20-1/2"D x 2-3/8"H

    MB Quart RA480.4 (Factory Refurbished)

    480W 4-Channel Reference Series Bridgeable Power Amplifier (RA4804)

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    480W 4-Channel Reference Series Bridgeable Power Amplifier (RA4804)

    • 60W x 4-Chan. @ 4 ohm
    • 120W x 4-Chan. @ 2 ohm
    • 240W x 2 Chan. @ 4 ohm
    • 3-Way System Protection
    • 4/3/2/1 Channel Operation
    • 8 Gauge Power and Ground Inputs
    • FLUID-FETS Circuit for Smooth Sound Quality

    • 60W x 4-Chan. @ 4 ohm
    • 120W x 4-Chan. @ 2 ohm
    • 240W x 2 Chan. @ 4 ohm
    • 3-Way System Protection
    • 4/3/2/1 Channel Operation
    • 8 Gauge Power and Ground Inputs
    • FLUID-FETS Circuit for Smooth Sound Quality

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      MB Quart All Car Amplifiers Information

      All car amplifiers from MB Quart are built from highly durable materials and with quality in mind. With various power ratings and max power output, MB Quart has a wide array of options to suit your system. When thinking of car amplifiers, think MB Quart.
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      2010 Ford Flex

      2014 Chevrolet Sonic

      2017 Lexus CT200h

      2007 Buick Rendezvous

      2005 Honda Pilot

      2014 BMW M6

      2016 Jeep Cherokee

      2011 Audi A5 Quattro

      2017 Audi S8

      1998 Ford Mustang

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      • Vehicle produced after 2005: Inside driver's side door
      • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
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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
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      Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.