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Liquidation Station: Open Box & Refurbished Items

Monoblock Amplifiers Closeout

Mount Olympus 2500W RMS Dual Monoblock Class AB Amplifier

  • Item Condition: OPEN BOX
  • • RMS Power: 1200W x 1 @ 4 ohms, 1900W x 1 @ 2 ohms, 2500W x 1 @ 1 ohm
    • Total Peak Power: 5000W
    • Dimensions: 8.97" W x 38.64" L x 2.76" H

    $439.99

    IN STOCK

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    1100W Max Class A/B Riot Series Monoblock Car Amplifier

    • Item Condition: Open Box Complete
    • RMS: 250W x 1 @ 4 ohms
    • Total Peak Power: 1100W
    • Hi-Level Inputs
    • 9.13" W x 10.44" L x 2.25" H

    $49.99

    IN STOCK

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    Refurbished 5500W Max, Onyx Series Class D Monoblock Power Amplifier

    Onyx Series 1-Channel Class D Car Amplifier • 2300 Watts RMS x 1 Chan. @ 4 Ohm • 5500 Watts Max x 1 Chan. @ 1 Ohm • Adjustable 0-12 dB Bass Boost • 1 Pair of Preamp RCA Outputs • Strapping Capability

    $129.99

    IN STOCK

    3000W Max Auto Sound Series Class D Monoblock Amplifier (ASA1500.1Dx)

    • Auto Sound Monoblock Class D Car Amplifier
    • 325 Watts x 1 Chan. @ 4 Ohms
    • 750 Watts x 1 Chan. @ 2 Ohms
    • 3000 Watts Max
    • 3-Way System Protection Circuitry
    • LED Power And Protect Indicators
    • MOSFET Power Supply

    $169.99

    IN STOCK

    1200W RMS, PDX Series Monoblock Power Density Digital Amplifier

    • RMS: 1200W x 1 @ 4 ohms, 1200W x 1 @ 2 ohms
    • Total RMS Power: 1200W
    • CEA-2006 Compliant
    • 6-Layer Glass Epoxy PC Board and Compact Size
    • Thermal Protection Circuitry
    • Dimensions: 7-9/16"D x 10-1/8"W x 2"H

    $749.95

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    1200W RMS, PDX Series Monoblock Power Density Class D Digital Car Amplifier

  • Item Condition: Repaired Incomplete
  • • RMS: 1200W x 1 @ 4 ohms, 1200W x 1 @ 2 ohms
    • Total RMS Power: 1200W
    • CEA-2006 Compliant
    • 6-Layer Glass Epoxy PC Board and Compact Size
    • Thermal Protection Circuitry
    • Dimensions: 7-9/16"D x 10-1/8"W x 2"H

    $699.95

    IN STOCK

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    800W RMS Class D Monoblock GM Digital Series Amplifier

    Installed, Box Damaged

  • Item Condition: Open Box Complete
  • • RMS: 300W x 1 @ 4 ohms, 500W x 1 @ 2 ohms, 800W x 1 @ 1 ohm
    • Total Peak Power: 1500W
    • CEA-2006 Compliant
    • Variable Bass Boost: 0 to +18 dB
    • Class D Circuitry
    • Dimensions: 10-7/16"W x 2-3/8"D x 7-7/8"H

    $144.95

    IN STOCK

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    1500W Class D 1-Channel Monoblock Reference Series Amplifier

    • Item Condition: Open Box Complete• Peak: 500W x 1 @ 4 ohms, 1000W x 1 @ 2 ohms, 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

    $139.99

    IN STOCK

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    Tested at 750W RMS on our Amp Dyno! (Rated 500W RMS by JBL), 1-Channel Monoblock Class D Car Amplifier with Digital Input Mixer and Graphical Status Display

  • Item Condition: Open Box Incomplete
  • • RMS: 500 x 1 @ 4 ohms, 500W x 1 @ 2 ohms
    • Total RMS Power: 500W
    • CEA-2006 Compliant
    • DSP (Digital Signal Processing)
    • Sophisticated Crossover Functions and Selectable Crossover Slopes
    • Dimensions: 8-13/16"L x 7-1/4"W x 2-13/16"H

    $169.99

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    5000W Max, Evolution Series Class D Monoblock Power Amplifier

  • Item Condition: Open box complete
  • • RMS: 1800W x 1 @ 4 ohms, 2500W x 1 @ 2 ohms
    • Peak: 2200W x 1 @ 4 ohms, 3500W x 1 @ 2 ohms, 5000W x 1 @ 1 ohm
    • Wired Bass Level Remote
    • Bass Boost: 0-18 dB
    • DataLink Cable for Connecting Two Evolution Amps
    • Dimensions: 10"D x 19-1/2"W x 2-3/8"H

    $179.99

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    500W V-Power Series Class D Monoblock Digital Amplifier

    • Item Condition: Factory Repaired
    • RMS: 300W x 1 @ 4 ohms, 500W x 1 @ 2 ohms
    • Total Peak Power: 500W
    • CEA-2006 Compliant Amplifier
    • 4-Channel Speaker-Level Inputs
    • Heavy Duty Aluminum Alloy Heat-Sink
    • Dimensions: 7-7/8"W x 7-7/8"L x 2-3/16"H

    $169.99

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    2000W Class D 1-Channel Monoblock Reference Series Amplifier

    • Peak: 650W x 1 @ 4 ohms, 1300W x 1 @ 2 ohms, 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

    $239.99

    IN STOCK

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    3200W Max Cobalt Series Class D Monoblock Car Amplifier

    • Item Condition: Open Box Complete
    • RMS: 700W x 1 @ 4 ohms, 1100W x 1 @ 2 ohms, 1600W x 1 @ 1 ohm
    • Total Peak Power: 3200W
    • CEA-2006 Compliant
    • Bass Boost: 0-18 dB
    • Class D Circuitry
    • Dimensions: 14-15/16"L x 7-1/2"W x 2"H

    $199.99

    IN STOCK

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    1200W RMS Monoblock Class D PA Series Car Amplifier

    • Item Condition: OPEN BOX COMPLETE
    • RMS 500 x 1 @ 4 ohms, 800W x 1 @ 2 ohms, 1200W x 1 @ 1 ohm
    • Total RMS Power: 1200W
    • CEA-2006 Compliant
    • Wired Bass Remote Included
    • Class D Design
    • Dimensions: 12-15/16"L x 6-3/4"W x 1-13/16"H

    $249.99

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    1200W RMS XThunder Series 1 Ohm Stable Mononlock Class D Amplifier

  • Item Condition: Open Box Complete
  • • RMS Power: 400W x 1 @ 4 ohms, 750W x 1 @ 2 ohms, 1200W x 1 @ 1 ohm
    • Total Peak Power: 2400W
    • Variable Low Pass Filter
    • Dimensions: 8.9" W x 14.2" L x 2.03" H

    $399.95

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    3000W Monoblock Brutus Series Super Class D Amplifier

    • Item Condition: Open Box Complete
    • RMS Power: 1000W x 1 @ 4 ohms, 2000W x 1 @ 2 ohms, 3000W x 1 @ 1 ohm
    • Total Peak Power: 3000W
    • Variable Low Pass Filter
    • Dimensions: 9.8" W x 17.7" L x 2.4" H

    $369.99

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    2000W Max, Auto Sound Series Class D Monoblock Amplifier (ASA1000.1Dx)

    • Auto Sound Monoblock Class D Car Amplifier
    • 220 Watts x 1 Chan. @ 4 Ohms
    • 500 Watts x 1 Chan. @ 2 Ohms
    • 2000 Watts Max
    • 3-Way System Protection Circuitry
    • LED Power And Protect Indicators
    • MOSFET Power Supply

    $129.99

    IN STOCK

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    1000W RMS Punch Series Monoblock Class BD Car Power Amplifier

    • RMS: 300W x 1 @ 4 ohms, 600W x 1 @ 2 ohms, 1000W x 1 @ 1 ohm
    • Total RMS Power: 1000W
    • CEA-2006 Compliant
    • Tuned Bass EQ: 0 to +18 dB
    • Super Efficient Class BD Circuitry
    • Dimensions: 13-5/16"L x 7-3/4"W x 2-3/8"H

    $529.99

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    True 3000W RMS, Class-D Monoblock Amplifier with Bass Remote

  • Item Condition: Open Box Incomplete
  • • RMS: 1020W x 1 @ 4 ohms, 1900W x 1 @ 2 ohms, 3000W x 1 @ 1 ohm
    • Total RMS Power: 3000W
    • CEA-2006 Compliant
    • Wired Bass Remote Included
    • Ultra Efficient Class D Design
    • Dimensions: 10" W x 20.5" L x 2.5" H

    $599.99

    IN STOCK

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    True 3000W RMS, Class-D Monoblock Amplifier with Bass Remote

  • Item Condition: Open Box Complete
  • • RMS: 1020W x 1 @ 4 ohms, 1900W x 1 @ 2 ohms, 3000W x 1 @ 1 ohm
    • Total RMS Power: 3000W
    • CEA-2006 Compliant
    • Wired Bass Remote Included
    • Ultra Efficient Class D Design
    • Dimensions: 10" W x 20.5" L x 2.5" H

    $599.99

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    Related Categories

    Amplifier Wiring Kits
    Get all the cables, wires, and hardware you need to install your new car audio amplifier with one of these power amp kits. Amplifier wiring kits come with your basic power and ground cables, as well as other necessary wires. Select complete amplifier kits will include speaker wire, RCA interconnect cables, and more! To make sure you get the kit that is best designed for your car audio system, scroll down to the bottom of this page for the buying guide.
    Sound Processors
    For those who want the most out their car audio system, a quality sound processor is a must. After some slight adjustments, your systems will sound like it has been professionally tuned and optimized. Tune your system to perfection with these crossovers, equalizers, and bass drivers. Click here to learn more about digital sound processors and to find out which type would be best for your car audio system.

    Monoblock Amplifiers Information

    Mono Subwoofer Amplifiers

    Mono amplifiers are single channel amps, but they can be used to power more than one subwoofer. Mono amps typically produce more power than multi-channel amps, which makes them ideal for powering subwoofers. Class D mono amps are the most efficient of all amplifier designs because they draw less current and as a result generate less heat in comparison to the classic mono amplifier design.

    A mono amplifier puts out only one channel of sound, as opposed to a stereo amp that puts out two channels of sound. A mono amp is generally used for extremely low frequencies, such as bass, that are channeled into a single subwoofer. It doesn't matter that both stereo channels are combined for these low bass frequencies because you couldn't tell which channel the sounds are coming from anyway because you feel the sound pressure more than hear the sound.