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  1. Home
  2. MB Quart Store
  3. Discontinued MB Quart Car Audio & Electronics
  4. Discontinued MB Quart Car Amplifiers
  5. Discontinued MB Quart Monoblock Amplifiers

Discontinued MB Quart Monoblock Amplifiers

Experience deep, powerful bass with MB Quart's Monoblock Amplifiers.

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Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
Amplifier Key Features
Amplifiers can offer a diverse array of features. If you select more than one feature, then you will view amplifiers that have ALL features selected. These include speaker-level inputs that facilitate seamless integration with factory audio systems, Bluetooth connectivity suitable for ATV/UTV or Classic vehicle setups, built-in DSPs that provide enhanced control over your audio signal, and a host of other functionalities to explore.
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.
Total Peak Power Output
The total peak power output is measured as the wattage per channel multiplied by the number of channels, and is calculated at the lowest level of operating impedance.

It is measured during a brief musical burst, such as a sudden drum accent. Some manufacturers display peak power ratings on the face of their products to increase the appeal.

The RMS power rating is more accurate, and we recommend using it for product comparison.
Series
Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
Remote bass/level controller
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Sonic Certified Amplifier
Sonic Certified amplifiers have been tested by the experts at Sonic Electronix to meet or exceed the wattage ratings provided by the manufacturer. If this is marked as Yes, then you can trust the wattage ratings. If marked as No, then we have tested the amplifier and it did not meet the advertised wattage ratings. If marked as Not Tested, then the Sonic Electronix experts have not yet been able to test the amp.
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Amp Bluetooth Connectivity
This feature will tell you if the amplifier has the capability to connect to a Bluetooth device.
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MB Quart RA2000.1-OPEN BOX

2000W Class D 1-Channel Monoblock Reference Series Amplifier

RA2000.1 big DISCONTINUED
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MB Quart RA2000.1-OPEN BOX

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 DA1-1200.1 (OPEN BOX COMPLETE)

1200W Monoblock Discus Series Car Amplifier

DA1-1200.1 big DISCONTINUED
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MB Quart DA1-1200.1 (OPEN BOX COMPLETE)

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

RA1000.1 big DISCONTINUED
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MB Quart RA1000.1 (Factory Refurbished)

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)

ONX1.1500D big DISCONTINUED
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MB Quart ONX1.1500D (Factory Refurbished)

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 RA1500.1 OPEN BOX COMPLETE

1500W Class D 1-Channel Monoblock Reference Series Amplifier

RA1500.1 big DISCONTINUED
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MB Quart RA1500.1 OPEN BOX COMPLETE

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 RA1500.1 (Factory Refurbished)

1500W Class D 1-Channel Monoblock Reference Series Amplifier

RA1500.1 big DISCONTINUED
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MB Quart RA1500.1 (Factory Refurbished)

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 DSC 1000.1 Open Box

(Open Box) 1000W RMS, Class A/B Monoblock Discus Series Amplifier (DSC1000.1)

DSC-1000.1 big DISCONTINUED
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MB Quart DSC 1000.1 Open Box

(Open Box) 1000W RMS, Class A/B Monoblock Discus Series Amplifier (DSC1000.1)

Discus Series Class AB Monoblock Car Amplifier • 350W x 1 chan. @ 4 ohm • 500W x 1 chan. @ 2 ohm • 1000W x 1 chan. @ 1 ohm • Unbalanced RCA inputs • Damping Factor: >180 • Subsonic Filter (15-35 Hz)

Discus Series Class AB Monoblock Car Amplifier • 350W x 1 chan. @ 4 ohm • 500W x 1 chan. @ 2 ohm • 1000W x 1 chan. @ 1 ohm • Unbalanced RCA inputs • Damping Factor: >180 • Subsonic Filter (15-35 Hz)

MB Quart RA2000.1 (Factory Refurbished)

2000W Class D 1-Channel Monoblock Reference Series Amplifier

RA2000.1 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

MB Quart RA2000.1 (Factory Refurbished)

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 RA1500.1 OPEN BOX COMPLETE

1500W Class D 1-Channel Monoblock Reference Series Amplifier

RA1500.1 big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

MB Quart RA1500.1 OPEN BOX COMPLETE

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 ONX1.1500D

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

ONX1.1500D big DISCONTINUED
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MB Quart ONX1.1500D

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 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

No picture DISCONTINUED
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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

• 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

124

• 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

MB Quart RA1000.1 Open Box Complete

1000W Class D 1-Channel Monoblock Reference Series Amplifier

RA1000.1 big DISCONTINUED
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MB Quart RA1000.1 Open Box Complete

1000W Class D 1-Channel Monoblock Reference Series Amplifier

  • Item Condition: Open box Complete
    • • 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 Condition: Open box Complete
    • • 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 RA1500.1 Open Box Complete

    1500W Class D 1-Channel Monoblock Reference Series Amplifier

    No picture DISCONTINUED
    Go to item page Right Arrow Icon of Right Arrow

    MB Quart RA1500.1 Open Box Complete

    1500W Class D 1-Channel Monoblock Reference Series Amplifier

    • FEATURE 1
    • FEATURE 2
    • FEATURE 3
    • FEATURE 4
    • FEATURE 5
    • FEATURE 6
    • FEATURE 7

    • FEATURE 1
    • FEATURE 2
    • FEATURE 3
    • FEATURE 4
    • FEATURE 5
    • FEATURE 6
    • FEATURE 7

    MB Quart XA1-500.1_XKIT82

    500W Monoblock X-Line Series Class SQ A/B Amplifier + FREE 100% Copper, 2-Channel True Spec 8 Gauge Amplifier Installation Kit

    No picture DISCONTINUED
    Go to item page Right Arrow Icon of Right Arrow

    MB Quart XA1-500.1_XKIT82

    500W Monoblock X-Line Series Class SQ A/B Amplifier + FREE 100% Copper, 2-Channel True Spec 8 Gauge Amplifier Installation Kit

    • RMS: 250W x 1 @ 4 ohm, 500W x 1 @ 2 ohm
    • Fluid-FETS hand selected insulated MOSFETS
    • Q-Stasis preamp stage with wide input range
    • Elaborate preamplifier with extended control
    • Frequency Response: 15 - 250 Hz
    • 8 Gauge 2-Channel Complete Amplifier Installation Kit

    • RMS: 250W x 1 @ 4 ohm, 500W x 1 @ 2 ohm
    • Fluid-FETS hand selected insulated MOSFETS
    • Q-Stasis preamp stage with wide input range
    • Elaborate preamplifier with extended control
    • Frequency Response: 15 - 250 Hz
    • 8 Gauge 2-Channel Complete Amplifier Installation Kit

    MB Quart FA1-1000.1

    FORMULA Series Monoblock Class D 1000W 1 Ohm Stable Amplifier

    No picture DISCONTINUED
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    MB Quart FA1-1000.1

    FORMULA Series Monoblock Class D 1000W 1 Ohm Stable Amplifier

    • FORMULA Series Monoblock Class D Amplifier
    • 1000W x 1 @ 1 ohm / 500W x 1 @ 2 ohm / 250W @ 4 ohm
    • DC Signal Sense
    • FLUID-FETS
    • Heavy duty heat-sink efficiently moves heat from the MOSFET
    • Bass Boost: 0-12dB

    • FORMULA Series Monoblock Class D Amplifier
    • 1000W x 1 @ 1 ohm / 500W x 1 @ 2 ohm / 250W @ 4 ohm
    • DC Signal Sense
    • FLUID-FETS
    • Heavy duty heat-sink efficiently moves heat from the MOSFET
    • Bass Boost: 0-12dB

    MB Quart ZA1-1000.1_XKIT42

    1000W Monoblock Z-Line Series Class SQ A/B Amplifier + FREE 100% Copper, 2-Chan. True Spec 4 Gauge Amp Installation Kit

    No picture DISCONTINUED
    Go to item page Right Arrow Icon of Right Arrow

    MB Quart ZA1-1000.1_XKIT42

    1000W Monoblock Z-Line Series Class SQ A/B Amplifier + FREE 100% Copper, 2-Chan. True Spec 4 Gauge Amp Installation Kit

    • RMS: 475W x 1 @ 4 ohm, 750W x 1 @ 2 ohm, 1000W 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

    125

    • RMS: 475W x 1 @ 4 ohm, 750W x 1 @ 2 ohm, 1000W 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

    MB Quart FA1-1500.1

    FORMULA Series Monoblock Class D 1500W 1 Ohm Stable Amplifier

    FA1-1500.1 big DISCONTINUED
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    MB Quart FA1-1500.1

    FORMULA Series Monoblock Class D 1500W 1 Ohm Stable Amplifier

    • FORMULA Series Monoblock Class D Amplifier
    • 1500W x 1 @ 1 ohm / 750W x 1 @ 2 ohm / 375W @ 4 ohm
    • DC Signal Sense
    • FLUID-FETS
    • Heavy duty heat-sink efficiently moves heat from the MOSFET
    • Bass Boost: 0-12dB

    • FORMULA Series Monoblock Class D Amplifier
    • 1500W x 1 @ 1 ohm / 750W x 1 @ 2 ohm / 375W @ 4 ohm
    • DC Signal Sense
    • FLUID-FETS
    • Heavy duty heat-sink efficiently moves heat from the MOSFET
    • Bass Boost: 0-12dB

    MB Quart FA1-2000.1

    2000W Class D FORMULA Series Monoblock Class-D Car Amplifier

    FA1-2000.1 big DISCONTINUED
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    MB Quart FA1-2000.1

    2000W Class D FORMULA Series Monoblock Class-D Car Amplifier

    • 500 watts x 1 channel @ 4 ohm
    • 1000 watts x 1 channel @ 2 ohm
    • 2000 watts x 1 channel @ 1 ohm
    • Total RMS Power: 2000 watts
    • Class D 1 ohm Stable Monoblock Amplifier

    • 500 watts x 1 channel @ 4 ohm
    • 1000 watts x 1 channel @ 2 ohm
    • 2000 watts x 1 channel @ 1 ohm
    • Total RMS Power: 2000 watts
    • Class D 1 ohm Stable Monoblock Amplifier

    MB Quart FA1-1000.1

    FORMULA Series Monoblock Class D 1000W 1 Ohm Stable Amplifier

    FA1-1000.1 big DISCONTINUED
    Go to item page Right Arrow Icon of Right Arrow

    MB Quart FA1-1000.1

    FORMULA Series Monoblock Class D 1000W 1 Ohm Stable Amplifier

    • FORMULA Series Monoblock Class D Amplifier
    • 1000W x 1 @ 1 ohm / 500W x 1 @ 2 ohm / 250W @ 4 ohm
    • DC Signal Sense
    • FLUID-FETS
    • Heavy duty heat-sink efficiently moves heat from the MOSFET
    • Bass Boost: 0-12dB

    • FORMULA Series Monoblock Class D Amplifier
    • 1000W x 1 @ 1 ohm / 500W x 1 @ 2 ohm / 250W @ 4 ohm
    • DC Signal Sense
    • FLUID-FETS
    • Heavy duty heat-sink efficiently moves heat from the MOSFET
    • Bass Boost: 0-12dB

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      MB Quart Monoblock Amplifiers Information

      The MB Quart monoblock amplifiers are designed for efficient power output. These amps take up little space and feature high-quality platinum finished connections and solid power ratings. You won't be disappointed with your MB Quart monoblock amplifier for your vehicle's needs.
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