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Amp up your factory system with quality car amplifiers. Find a large selection of monoblock amps including Class D, mini amps, micro amps and other car amps for subwoofers. Shop now!
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Liquidation Station: Open Box & Refurbished Items

Free Installation Kit with the purchase of Select Amplifiers!

Monoblock Amplifiers Closeout

Refurbished 5000W Max Evolution Series Class D Monoblock Power Amplifier with Remote Level Control

Evolution Series Class D Car Amplifier • Single-Channel Monoblock • 5000W x 1 Chan. @ 1 Ohm • 3500W x 1 Chan. @ 2 Ohm • 1800W x 1 Chan. @ 4 Ohm • LED Protection Indicators • DataLink for Strapping Amps Together

$119.99

IN STOCK

Monoblock GTO Series Class D Car Amplifier

Like New condition, Outer box damage
• RMS: 500W x 1 @ 4 ohms, 750W x 1 @ 2 ohms
• Total RMS Power: 750W
• CEA-2006 Compliant
• Variable Bass Boost: 0 to +12 dB
• Class D Circuitry
• Dimensions: 9-11/16"W x 12"L x 2-5/8"H

$99.95

IN STOCK

Only 1 Left!

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

$119.99

IN STOCK

Only 1 Left!

4000W Max Big Bang Series Monoblock Digital Class D Car Amplifier

• Peak: 1500W x 1 @ 4 ohms, 2000W x 1 @ 2 ohms, 4000W x 1 @ 1 ohm
• Total Peak Power: 4000W
• Class D Circuitry
• Bass Boost: 0-18 dB
• 1 Pair of Preamp Outputs
• Dimensions: 15-3/4"W x 6-8/9"L x 2-3/10"H

$199.99

IN STOCK

Only 1 Left!

Refurbished 4000W Max Evolution Series Class D Monoblock Power Amplifier with Remote Level Control

Evolution Series Class D Car Amplifier • Single-Channel Monoblock • 4000W x 1 Chan. @ 1 Ohm • 3000W x 1 Chan. @ 2 Ohm • 1600W x 1 Chan. @ 4 Ohm • LED Protection Indicators • DataLink for Strapping Amps Together

$99.99

IN STOCK

4000W RMS, Monoblock Class D OptiDrive Series Car Amplifier

Item is used and has been previously installed
• RMS: 2000W x 1 @ 4 ohms, 3000W x 1 @ 2 ohms, 4000W x 1 @ 1 ohm
• Total RMS Power: 4000W
• Class D Circuitry
• Bass Boost: 0-18 dB
• 1 Pair of Preamp Outputs
• Dimensions: 23-1/3"L x 10-11/16"W x 2-1/8"H

$539.99

IN STOCK

Only 1 Left!

Refurbished 3000W Max, Evolution Series Class D Monoblock Amplifier with Bass Remote

Evolution Series Class D Car Amplifier • Single-Channel Monoblock • 3000W x 1 Chan. @ 1 Ohm • 2200W x 1 Chan. @ 2 Ohm • 1200W x 1 Chan. @ 4 Ohm • LED Protection Indicators • DataLink for Strapping Amps Together

$99.99

IN STOCK

1600W Monoblock Street Machine Series Class D Amplifier

Item is missing manual, has been previously installed, and item is used
• RMS: 800W x 1 @ 4 ohms, 1600W x 1 @ 2 ohms
• Pulse Width Modulated MOSFET power supply
•Nickel plated brass connections
• Built-in Variable Low-Pass and Subsonic Filter
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation

$79.99

IN STOCK

Only 1 Left!

1500W Monoblock WCC Series Class D Amplifier (Same as MB Quart OA750.1)

Missing fuses
• 4 ohms: 375 watts x 1 chan.
• 2 ohms: 750 watts x 1 chan.
• 1 ohms: 1500 watts x 1 chan
• Pulse Width Modulated (PWM) MOSFET Power Supply

$89.99

IN STOCK

Only 1 Left!

2000W Monoblock ATA Series Car Amplifier

Item is used
• Max Power: 500W x 1 @ 4 ohms, 1000W x 1 @ 2 ohms
• Total Peak Power: 2000W
• Adjustable 12dB Crossovers
• Dimensions: 9.45" W x 15.75" L x 2.08" H

$84.99

IN STOCK

Only 1 Left!

1100W Max ZR Series Class D Monoblock Amplifier

Item is used and has Installation marks
• 330W RMS x 1 Chan. @ 4 Ohms
• 600W RMS x 1 Chan. @ 2 Ohms
• 1100W Max
• High-Level Sensing Power On Feature
• Gold Plated Speaker Terminals
• Active Thermal Control

$99.95

IN STOCK

Only 1 Left!

2100W Monoblock Street Machine Series Class D Amplifier

Used and previously installed
• RMS: 600W x 1 @ 4 ohms, 1050W x 1 @ 2 ohms, 2100W x 1 @ 1 ohm
• Pulse Width Modulated MOSFET power supply
•Nickel plated brass connections
• Built-in Variable Low-Pass and Subsonic Filter
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation

$109.99

IN STOCK

Only 1 Left!

4000W Max, Evolution Series Class D Monoblock Power Amplifier

Missing manual, used and previously installed
• RMS: 1600W x 1 @ 4 ohms
• Peak: 3000W x 1 @ 2 ohms, 4000W x 1 @ 1 ohm
• Wired Bass Level Remote
• Bass Boost: 0-18 dB
• DataLink Cable for Connecting Two Evolution Amps
• Dimensions: 10"D x 15"W x 2-3/8"H

$119.99

IN STOCK

Only 1 Left!

2000W Max Digital Monoblock TNT Series Car Amplifier with High Level Inputs

Box damaged, used, has marks, and is missing High Input Cable
• RMS: 500W x 1 @ 4 ohms, 1000W x 1 @ 2 ohms
• Total Peak Power: 2000W
• Wired Bass Remote Included
• Bass Boost: 0-10 dB
• Class D Stealth Design
• Dimensions: 11"D x 9-3/4"W x 2-1/4"H

$109.95

IN STOCK

Only 1 Left!

800W RMS Class D Monoblock GM Digital Series Amplifier

• 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

$139.95

IN STOCK

Only 1 Left!

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

    Only 1 Left!

    800W RMS Class D Monoblock GM Digital Series Amplifier

    Item is used and has been installed
    • 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

    $139.95

    IN STOCK

    Only 1 Left!

    1200W RMS GM Digital Series Class D Monoblock Amplifier

    Used and box is damaged
    • RMS: 500W x 1 @ 4 ohms, 800W x 1 @ 2 ohms, 1200W x 1 @ 1 ohm
    • Total Peak Power: 2400W
    • CEA-2006 Compliant
    • Variable Bass Boost: 0 to +18 dB
    • Class D Circuitry
    • Dimensions: 12-3/8"W x 7-7/8"D x 2-3/8"H

    $169.99

    IN STOCK

    Only 1 Left!

    4500W Max Monoblock Gothic Series Class D Car Amplifier

    Item is used and has been previously installed
    • RMS: 1700W x 1 @ 4 ohms, 2200W x 1 @ 2 ohms, 2700W x 1 @ 1 ohm
    • Total Peak Power: 4500W
    • Class D Circuitry
    • Bass Boost: 0-12 dB
    • 1 Pair of Preamp Outputs
    • Dimensions: 14-3/4"L x 9-3/4"W x 2-3/10"H

    $149.95

    IN STOCK

    Only 1 Left!

    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

    IN STOCK

    Only 1 Left!

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    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.