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Discontinued All MB Quart Car Amplifiers

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MB Quart RA1000.4-OPEN BOX

1000W 4-Channel Reference Series Bridgeable Power Amplifier (RA10004)

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1000W 4-Channel Reference Series Bridgeable Power Amplifier (RA10004)

• 125W x 4-Chan. @ 4 ohm
• 250W x 4-Chan. @ 2 ohm
• 500W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 1/0 Gauge Power and Ground Inputs
• FLUID-FETS Circuit for Smooth Sound Quality

• 125W x 4-Chan. @ 4 ohm
• 250W x 4-Chan. @ 2 ohm
• 500W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 1/0 Gauge Power and Ground Inputs
• FLUID-FETS Circuit for Smooth Sound Quality

MB Quart RA1000.4 (Factory Refurbished)

1000W 4-Channel Reference Series Bridgeable Power Amplifier (RA10004)

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1000W 4-Channel Reference Series Bridgeable Power Amplifier (RA10004)

• 125W x 4-Chan. @ 4 ohm
• 250W x 4-Chan. @ 2 ohm
• 500W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 1/0 Gauge Power and Ground Inputs
• FLUID-FETS Circuit for Smooth Sound Quality

• 125W x 4-Chan. @ 4 ohm
• 250W x 4-Chan. @ 2 ohm
• 500W x 2 Chan. @ 4 ohm
• 3-Way System Protection
• 4/3/2/1 Channel Operation
• 1/0 Gauge Power and Ground Inputs
• FLUID-FETS Circuit for Smooth Sound Quality

MB Quart RA640.4- OPEN BOX

640W 4-Channel Reference Series Class SQ Bridgeable Power Amplifier (RA6404)

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640W 4-Channel Reference Series Class SQ Bridgeable Power Amplifier (RA6404)

• 80W x 4-Chan. @ 4 ohm
• 160W x 4-Chan. @ 2 ohm
• 320W 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

• 80W x 4-Chan. @ 4 ohm
• 160W x 4-Chan. @ 2 ohm
• 320W 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 RA2000.1-OPEN BOX

2000W Class D 1-Channel Monoblock Reference Series Amplifier

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2000W Class D 1-Channel Monoblock Reference Series Amplifier

• 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

• 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 OA1100.5-RB (Factory Refurbished)

1100W Max Class D 5-Channel Onyx Series Amplifier

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1100W Max Class D 5-Channel Onyx Series Amplifier

• Full-Range RMS: 75W x 4 @ 4 ohm, 150W x 4 @ 2 ohm
• Subwoofer RMS: 350W x 1 @ 4 ohm, 500W x 1 @ 2 ohm
• Class D Circuitry
• FLUID-FETS MOSFETS Circuit
• Heavy Duty Black Onyx
• Dimensions: 9-7/16"W x 16"D x 2-1/4"H

• Full-Range RMS: 75W x 4 @ 4 ohm, 150W x 4 @ 2 ohm
• Subwoofer RMS: 350W x 1 @ 4 ohm, 500W x 1 @ 2 ohm
• Class D Circuitry
• FLUID-FETS MOSFETS Circuit
• Heavy Duty Black Onyx
• Dimensions: 9-7/16"W x 16"D x 2-1/4"H

MB Quart DA1-1200.1 (OPEN BOX COMPLETE)

1200W Monoblock Discus Series Car Amplifier

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1200W Monoblock Discus Series Car Amplifier

• Max: 400 x 1 @ 4 ohm, 600W x 1 @ 2 ohm, 1,200W x 1 @ 1 ohm
• Variable Low-Pass & High-Pass Filters
• Bass Boost: 0 ~ 12 dB
• Focused mass aluminum heat sinks
• 9.00" W x 12.20" L x 2.20" H

• Max: 400 x 1 @ 4 ohm, 600W x 1 @ 2 ohm, 1,200W x 1 @ 1 ohm
• Variable Low-Pass & High-Pass Filters
• Bass Boost: 0 ~ 12 dB
• Focused mass aluminum heat sinks
• 9.00" W x 12.20" L x 2.20" H

MB Quart RA1000.1 (Factory Refurbished)

1000W Class D 1-Channel Monoblock Reference Series Amplifier

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1000W Class D 1-Channel Monoblock Reference Series Amplifier

• 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

• 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 ONX1.1500D (Factory Refurbished)

1500W RMS ONYX Series Class D Monoblock Amplifier (ONX-1.1500D)

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1500W RMS ONYX Series Class D Monoblock Amplifier (ONX-1.1500D)

ONYX Series Monoblock Class D Car Amplifier • 1500W x 1 Chan @ 1 Ohm • 1000W x 1 Chan @ 2 Ohm • Dual Speaker Terminals • Preamp RCA Outputs • 4-Way System Protection Circuitry • Piano Black Gloss Finish

ONYX Series Monoblock Class D Car Amplifier • 1500W x 1 Chan @ 1 Ohm • 1000W x 1 Chan @ 2 Ohm • Dual Speaker Terminals • Preamp RCA Outputs • 4-Way System Protection Circuitry • Piano Black Gloss Finish

MB Quart RA640.4 (Factory Refurbished)

640W 4-Channel Reference Series Bridgeable Power Amplifier (RA6404)

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640W 4-Channel Reference Series Bridgeable Power Amplifier (RA6404)

• Item Condition: Factory Refurbished
• 80W x 4-Chan. @ 4 ohm
• 160W x 4-Chan. @ 2 ohm
• 320W 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

• Item Condition: Factory Refurbished
• 80W x 4-Chan. @ 4 ohm
• 160W x 4-Chan. @ 2 ohm
• 320W 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 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 RA400.2 (Factory Refurbished)

400W Max 2-Channel Reference Series Stereo/Bridgeable Power Amplifier (RA4002)

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400W Max 2-Channel Reference Series Stereo/Bridgeable Power Amplifier (RA4002)

• 100W x 2 Chan. @ 4 ohm
• 200W x 2 Chan. @ 2 ohm
• 400W 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

• 100W x 2 Chan. @ 4 ohm
• 200W x 2 Chan. @ 2 ohm
• 400W 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 RA1500.1 (Factory Refurbished)

1500W Class D 1-Channel Monoblock Reference Series Amplifier

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1500W Class D 1-Channel Monoblock Reference Series Amplifier

• 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

• 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 RA2000.1 (Factory Refurbished)

2000W Class D 1-Channel Monoblock Reference Series Amplifier

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2000W Class D 1-Channel Monoblock Reference Series Amplifier

• 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

• 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 RAB 1450 R/B

Class A/B Monoblock Reference Series Amplifier (RAB1450)

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Class A/B Monoblock Reference Series Amplifier (RAB1450)

Reference Series 1-Channel Class AB Car Amplifier • 200W x 1 chan. @ 4 ohm • 300W x 1 chan. @ 2 ohm • 450W x 1 chan. @ 1 ohm • MOSFET power supply • DC, short, thermal, and overload protection circuitry

Reference Series 1-Channel Class AB Car Amplifier • 200W x 1 chan. @ 4 ohm • 300W x 1 chan. @ 2 ohm • 450W x 1 chan. @ 1 ohm • MOSFET power supply • DC, short, thermal, and overload protection circuitry

MB Quart NA710.5 OPEN BOX COMPLETE

360W RMS 5-Channel Nautical Series Class SQ Marine Amplifier

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360W RMS 5-Channel Nautical Series Class SQ Marine Amplifier

• Full-Range RMS: 60W x 4 @ 4 ohm, 90W x 4 @ 2 ohm
• Subwoofer RMS: 200W x 1 @ 4 ohm, 350W x 1 @ 2 ohm
• Marine Ready
• Raven Black Finish
• Preamp RCA Outputs
• Dimensions: 9-1/2"W x 18"L x 2-1/4"H

• Full-Range RMS: 60W x 4 @ 4 ohm, 90W x 4 @ 2 ohm
• Subwoofer RMS: 200W x 1 @ 4 ohm, 350W x 1 @ 2 ohm
• Marine Ready
• Raven Black Finish
• Preamp RCA Outputs
• Dimensions: 9-1/2"W x 18"L x 2-1/4"H

MB Quart OA800.4- OPEN BOX INCOMPLETE

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

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800W 4-Channel Onyx Series 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 DA1-1200.2 OPEN BOX COMPLETE

1200W 2-Channel Discus Series Full Range Car Amplifier

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1200W 2-Channel Discus Series Full Range Car Amplifier

Item has been opened and the box is damaged
• RMS: 300 x 2 @ 4 ohm, 600W x 2 @ 2 ohm, Bridged: 1,200W x 1 @ 4 ohm
• Variable Low-Pass & High-Pass Filters
• Bass Boost: 0 ~ 12 dB
• Focused mass aluminum heat sinks
• 9.00" W x 19.30" L x 2.20" H

Item has been opened and the box is damaged
• RMS: 300 x 2 @ 4 ohm, 600W x 2 @ 2 ohm, Bridged: 1,200W x 1 @ 4 ohm
• Variable Low-Pass & High-Pass Filters
• Bass Boost: 0 ~ 12 dB
• Focused mass aluminum heat sinks
• 9.00" W x 19.30" L x 2.20" H

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 Q4.150 Open Box

(Open Box) 880W RMS Q-Series 4-Channel Amplifier (Q4150)

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(Open Box) 880W RMS Q-Series 4-Channel Amplifier (Q4150)

Q Series 4-Channel Amplifier • 150W x 4 Chan @ 4 Ohm • 220W x 4 Chan @ 2 Ohm • PWM MOSFET Power Supply • Full Feature Crossover Design • Clipping Control with LED Indicator • Frequency Multiplier • Multi-Channel Configuration • Built-In System Diagnostics

Q Series 4-Channel Amplifier • 150W x 4 Chan @ 4 Ohm • 220W x 4 Chan @ 2 Ohm • PWM MOSFET Power Supply • Full Feature Crossover Design • Clipping Control with LED Indicator • Frequency Multiplier • Multi-Channel Configuration • Built-In System Diagnostics

MB Quart ZA1-1500.1_XKIT42

1500W Monoblock Z-Line Series Class SQ A/B Amplifier + FREE 100% Copper, 2-Chan. True Spec 4 Gauge Amp Installation Kit

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1500W Monoblock Z-Line Series Class SQ A/B Amplifier + FREE 100% Copper, 2-Chan. True Spec 4 Gauge Amp Installation Kit

• RMS: 500W x 1 @ 4 ohm, 1000W x 1 @ 2 ohm, 1500W x 1 @ 1 ohm
• Fluid-FETS hand selected insulated MOSFETS
• Q-Stasis preamp stage with wide input range
• Top mounted controls for simple setup & adjustment
• Frequency Response: 15 - 250 Hz
• 4 Gauge 2-Channel X-Series Complete Amplifier Installation Kit

• RMS: 500W x 1 @ 4 ohm, 1000W x 1 @ 2 ohm, 1500W x 1 @ 1 ohm
• Fluid-FETS hand selected insulated MOSFETS
• Q-Stasis preamp stage with wide input range
• Top mounted controls for simple setup & adjustment
• Frequency Response: 15 - 250 Hz
• 4 Gauge 2-Channel X-Series Complete Amplifier Installation Kit

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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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    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
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    1993 Ford Probe

    2012 BMW 650i

    2000 Volvo S40

    2009 Kia Optima

    2021 Ram 2500

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    1987 Dodge Mini Ram

    1989 Subaru GL

    2004 GMC Envoy XUV

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    2016 Can-Am Maverick Max 1000R DPS

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    • Vehicle produced after 2005: Inside driver's side door
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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.