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Discontinued Monoblock Amplifiers

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Hifonics Brutus BXi 2610D (Factory Refurbished)

2600W RMS Brutus BXi Series Class D Monoblock Amplifier (BXi2610D)

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2600W RMS Brutus BXi Series Class D Monoblock Amplifier (BXi2610D)

2600W RMS, Brutus BXi Series Class D Monoblock Amplifier • 850W x 1 Chan. @ 4 Ohm • 1700W x 1 Chan. @ 2 Ohm • 2600W x 1 Chan. @ 1 Ohm • Super D-Class • Tuned Bass EQ • 1 Ohm Stable • Balanced Line Input

2600W RMS, Brutus BXi Series Class D Monoblock Amplifier • 850W x 1 Chan. @ 4 Ohm • 1700W x 1 Chan. @ 2 Ohm • 2600W x 1 Chan. @ 1 Ohm • Super D-Class • Tuned Bass EQ • 1 Ohm Stable • Balanced Line Input

Hifonics HFi1000D Open Box

(Open Box) 1000W RMS, Class D Monoblock HFi Series Amplifier (HFi 1000D)

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(Open Box) 1000W RMS, Class D Monoblock HFi Series Amplifier (HFi 1000D)

HFi Series Monoblock Class D Car Amplifier • 750W x 1-Chan. @ 2 Ohm • 1000W x 1-Chan. @ 1 Ohm • Wired HFR-3 Bass Remote • 4-Way System Protection Circuitry • Preamp RCA Outputs • Blue Illuminated Hifonics Badge

HFi Series Monoblock Class D Car Amplifier • 750W x 1-Chan. @ 2 Ohm • 1000W x 1-Chan. @ 1 Ohm • Wired HFR-3 Bass Remote • 4-Way System Protection Circuitry • Preamp RCA Outputs • Blue Illuminated Hifonics Badge

Boss AR2000M Amplifier w/Belva 1.0 Farad Capacitor + Belva 2000 Watt Handling Amp Kit

2000W Max Monoblock ARMOR Series Class A/B Car Amplifier w/ 1.0 Farad Capacitor & 4 AWG Amp Kit

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2000W Max Monoblock ARMOR Series Class A/B Car Amplifier w/ 1.0 Farad Capacitor & 4 AWG Amp Kit

• Boss AR2000M Monoblock Armor Series Class A/B Car Amplifier
• Belva BAK42 Complete 4 Gauge 2-Channel Amplifier Installation Kit
• Belva BB1D 1.0 Farad Capacitor
• RMS: 1000W x 1 @ 4 ohm
• Premium Power and Ground Wire Provides Optimal Power Transfer

• Boss AR2000M Monoblock Armor Series Class A/B Car Amplifier
• Belva BAK42 Complete 4 Gauge 2-Channel Amplifier Installation Kit
• Belva BB1D 1.0 Farad Capacitor
• RMS: 1000W x 1 @ 4 ohm
• Premium Power and Ground Wire Provides Optimal Power Transfer

Kicker CX1200.1 (12CX1200.1) + Free $25 Sonic Electronix Gift Card

1200W RMS, Class D Mono Block CX Series Car Amplifier + Free $25 Sonic Electronix Gift Card

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1200W RMS, Class D Mono Block CX Series Car Amplifier + Free $25 Sonic Electronix Gift Card

• RMS: 600W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm
• Total Peak Power: 2400W
• CEA-2006 Compliant
• Bass Boost 0-12 dB at 40 Hz
• Vertical Mounting Option
• Dimensions: 7-3/16"W x 12-1/16"D x 2-3/8"H
• Free $25 Sonic Electronix Gift Card

• RMS: 600W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm
• Total Peak Power: 2400W
• CEA-2006 Compliant
• Bass Boost 0-12 dB at 40 Hz
• Vertical Mounting Option
• Dimensions: 7-3/16"W x 12-1/16"D x 2-3/8"H
• Free $25 Sonic Electronix Gift Card

Cadence Q10001D

1000W RMS Series 1-ohm Stable Monoblock Class-D Amplifier w/ Bass Knob Included

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1000W RMS Series 1-ohm Stable Monoblock Class-D Amplifier w/ Bass Knob Included

• 350 Watts RMS x 1 @ 4 ohm
• 600 Watts RMS x 1 @ 2 ohm
• 1000 Watts RMS x 1 @ 1 ohm
• Low Pass and Subsonic Filters
• 0-12dB Bass Boost
• Aluminum Heatsink
• Dimensions: 7.1" W x 14.65" L x 2.05" H

• 350 Watts RMS x 1 @ 4 ohm
• 600 Watts RMS x 1 @ 2 ohm
• 1000 Watts RMS x 1 @ 1 ohm
• Low Pass and Subsonic Filters
• 0-12dB Bass Boost
• Aluminum Heatsink
• Dimensions: 7.1" W x 14.65" L x 2.05" H

Cerwin-Vega HED31000.1D

1000W Max Class D Monoblock HED3 Series Power Car Amplifier

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1000W Max Class D Monoblock HED3 Series Power Car Amplifier

• RMS: 350W x 1 @ 4 ohm, 2 ohm 550W x 1 @ 2 ohm
• Total Peak Power: 1000W
• Class D Circuitry
• Bass Boost 0-12 dB at 45 Hz
• Wired Bass Control Included
• Dimensions: 9-1/8"W x 11-9/16"L x 2-1/8"H

• RMS: 350W x 1 @ 4 ohm, 2 ohm 550W x 1 @ 2 ohm
• Total Peak Power: 1000W
• Class D Circuitry
• Bass Boost 0-12 dB at 45 Hz
• Wired Bass Control Included
• Dimensions: 9-1/8"W x 11-9/16"L x 2-1/8"H

MTX Audio TC6001 R/B

1800W Max, Class D MonoBlock Amplifier

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1800W Max, Class D MonoBlock Amplifier

600 watts Max, Class D MonoBlock Amplifier • 300 watts x 1 chan. @ 4 ohm • Patented State-of-the-Art Power Supply • CEA-2006 Compliant • Adjustable Bass Boost and Remote Subwoofer Control • Defeatable Subsonic Filter • High Level Input • RCA Inputs and Output

600 watts Max, Class D MonoBlock Amplifier • 300 watts x 1 chan. @ 4 ohm • Patented State-of-the-Art Power Supply • CEA-2006 Compliant • Adjustable Bass Boost and Remote Subwoofer Control • Defeatable Subsonic Filter • High Level Input • RCA Inputs and Output

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 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

    Hifonics ZXi 8408 R/B

    880W RMS Zeus ZXi Series 4-Channel Amplifier

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    880W RMS Zeus ZXi Series 4-Channel Amplifier

    Zeus ZXi Series 4-Channel Class AB Car Amplifier • 110W x 4 chan. @ 4 ohm • 220W x 4 chan. @ 2 ohm • 440W x 2 chan. @ 4 ohm • Pulse width modulated (PWM) MOSFET power supply • Preamp RCA outputs • DC, short, thermal, and overload protection circuitry

    Zeus ZXi Series 4-Channel Class AB Car Amplifier • 110W x 4 chan. @ 4 ohm • 220W x 4 chan. @ 2 ohm • 440W x 2 chan. @ 4 ohm • Pulse width modulated (PWM) MOSFET power supply • Preamp RCA outputs • DC, short, thermal, and overload protection circuitry

    Kicker CXA300.1 (43CXA300.1) Open Box

    600W Peak (300W RMS) CX Series Monoblock Class D Subwoofer Car Amplifier

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    600W Peak (300W RMS) CX Series Monoblock Class D Subwoofer Car Amplifier


    • 150 Watts RMS x 1 @ 4 ohm
    • 300 Watts RMS x 1 @ 2 ohm
    • Total Peak Power: 600 Watts
    • Preamp RCA outputs to daisy chain multiple amps
    • Variable Low-Pass Crossover: 50 - 200Hz 12dB/octave
    • Variable Bass Boost: 0 to +12 dB bass boost at 40 Hz
    • Dimensions: 7-3/16"W x 8-1/8"L x 2-3/8"H


    • 150 Watts RMS x 1 @ 4 ohm
    • 300 Watts RMS x 1 @ 2 ohm
    • Total Peak Power: 600 Watts
    • Preamp RCA outputs to daisy chain multiple amps
    • Variable Low-Pass Crossover: 50 - 200Hz 12dB/octave
    • Variable Bass Boost: 0 to +12 dB bass boost at 40 Hz
    • Dimensions: 7-3/16"W x 8-1/8"L x 2-3/8"H

    Rockford Fosgate R500X1D Open Box Complete (Very Good, Used)

    500W RMS Prime Series Class D Monoblock Amplifier

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    500W RMS Prime Series Class D Monoblock Amplifier

    • Item Condition: Open Box
    • RMS: 300W x 1 @ 4 ohm, 500W x 1 @ 2 ohm
    • Total RMS Power: 500W
    • CEA-2006 Compliant
    • Remote PLC (Punch Level Control) Included
    • Efficient Class-D circuit topology
    • Dimensions: 8-1/2"L x 6-3/4"W x 2"H

    • Item Condition: Open Box
    • RMS: 300W x 1 @ 4 ohm, 500W x 1 @ 2 ohm
    • Total RMS Power: 500W
    • CEA-2006 Compliant
    • Remote PLC (Punch Level Control) Included
    • Efficient Class-D circuit topology
    • Dimensions: 8-1/2"L x 6-3/4"W x 2"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

    • 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

    NVX MVPA1(Open Box Incomplete Used Functional)

    Micro-V Series 300W RMS Monoblock Class D Compact Car Amplifier (MVPA.1)(Open Box Incomplete Used Functional)

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    Micro-V Series 300W RMS Monoblock Class D Compact Car Amplifier (MVPA.1)(Open Box Incomplete Used Functional)

    • 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

    PowerBass ACA-450.1 w/Belva 1.0 Farad Capacitor + Belva 2000 Watt Handling Amp Kit

    900W Max ACA Series Compact Class A/B Monoblock Amplifier w/ 1.0 Farad Capacitor & 4 AWG Amp Kit

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    900W Max ACA Series Compact Class A/B Monoblock Amplifier w/ 1.0 Farad Capacitor & 4 AWG Amp Kit

    • PowerBass ACA-450.1 900W Compact Monoblock Amplifier
    • Belva BAK42 Complete 4 Gauge 2-Channel Amplifier Installation Kit
    • Belva BB1D 1.0 Farad Capacitor
    • RMS: 300W x 1 @ 4 ohm
    • Premium Power and Ground Wire Provides Optimal Power Transfer

    • PowerBass ACA-450.1 900W Compact Monoblock Amplifier
    • Belva BAK42 Complete 4 Gauge 2-Channel Amplifier Installation Kit
    • Belva BB1D 1.0 Farad Capacitor
    • RMS: 300W x 1 @ 4 ohm
    • Premium Power and Ground Wire Provides Optimal Power Transfer

    MTX Audio THUNDER500.1

    500W RMS Class D 1-Channel Monoblock Power Car Amplifier

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    500W RMS Class D 1-Channel Monoblock Power Car Amplifier

    • RMS: 300W x 1 @ 4 ohm, 500W x 1 @ 2 ohm
    • Total Peak Power: 1000W
    • 3-Way Protection Circuitry
    • Selectable Bass Boost (0-6-12 dB)
    • Class D Circuitry
    • Dimensions: 6-5/16"W x 8-15/16"L x 2-1/4"H

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    • RMS: 300W x 1 @ 4 ohm, 500W x 1 @ 2 ohm
    • Total Peak Power: 1000W
    • 3-Way Protection Circuitry
    • Selectable Bass Boost (0-6-12 dB)
    • Class D Circuitry
    • Dimensions: 6-5/16"W x 8-15/16"L x 2-1/4"H

    Infinity Reference 1300a Open Box

    (Open Box) 342W Max, Reference Series Class D Monoblock Amplifier (REF1300A)

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    (Open Box) 342W Max, Reference Series Class D Monoblock Amplifier (REF1300A)

    Reference Series Class D Monoblock Amplifier • 200W x 1 chan. @ 4 ohm • 300W x 1 chan. @ 2 ohm • 342W x 1 chan. Max • MOSFET power supply • Gold-plated preamp RCA outputs

    Reference Series Class D Monoblock Amplifier • 200W x 1 chan. @ 4 ohm • 300W x 1 chan. @ 2 ohm • 342W x 1 chan. Max • MOSFET power supply • Gold-plated preamp RCA outputs

    Lanzar OPTI3201D OPEN BOX COMPLETE

    3200W RMS Monoblock Class D OptiDrive Series Car Amplifier

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    3200W RMS Monoblock Class D OptiDrive Series Car Amplifier

    Previously installed and used
    • RMS: 820W x 1 @ 4 ohm, 1500W x 1 @ 2 ohm, 2100W x 1 @ 1 ohm
    • Total RMS Power: 3200W
    • Class D Circuitry
    • Bass Boost: 0-18 dB
    • 0.5 Ohm Stable
    • Dimensions: 19-3/4"L x 10-11/16"W x 2-1/8"H

    Previously installed and used
    • RMS: 820W x 1 @ 4 ohm, 1500W x 1 @ 2 ohm, 2100W x 1 @ 1 ohm
    • Total RMS Power: 3200W
    • Class D Circuitry
    • Bass Boost: 0-18 dB
    • 0.5 Ohm Stable
    • Dimensions: 19-3/4"L x 10-11/16"W x 2-1/8"H

    Boss PD5000

    5000W Phantom Series Monoblock Class D Amplifier

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    5000W Phantom Series Monoblock Class D Amplifier

    • RMS: 1250W x 1 @ 4 ohm
    • Total Peak Power: 5000W
    • Gold-plated RCA low level and high level inputs
    • 3-way protection circuitry (thermal, overload, and speaker short protection)
    • Wired remote bass level control included
    • 10.31" W x 18.00" L x 2.25" H

    • RMS: 1250W x 1 @ 4 ohm
    • Total Peak Power: 5000W
    • Gold-plated RCA low level and high level inputs
    • 3-way protection circuitry (thermal, overload, and speaker short protection)
    • Wired remote bass level control included
    • 10.31" W x 18.00" L x 2.25" H

    Audiopipe APCL-30001D-OPEN BOX

    3000W Consumer Line Series Monoblock Class D Amplifier

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    3000W Consumer Line Series Monoblock Class D Amplifier

    • RMS Power: 1800W x 1 @ 4 ohm, 3000W x 1 @ 2 ohm
    • Total Peak Power: 6000W
    • Adjustable Low Pass Filter
    • High Quality Aluminum Heat Sink
    • Dimensions: 7" W x 27.9" L x 2.2" H

    • RMS Power: 1800W x 1 @ 4 ohm, 3000W x 1 @ 2 ohm
    • Total Peak Power: 6000W
    • Adjustable Low Pass Filter
    • High Quality Aluminum Heat Sink
    • Dimensions: 7" W x 27.9" L x 2.2" H

    Orion CO1100.1M2-FACTORY REFURBISHED

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

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

    • RMS: 375W x 1 @ 4 ohm, 550W x 1 @ 2 ohm
    • Total Peak Power: 1100W
    • CEA-2006 Compliant
    • Bass Boost: 0-18 dB
    • Heavy Duty Aluminum Alloy Convection Heatsink
    • Dimensions: 13-3/16"L x 7-1/2"W x 2"H

    • RMS: 375W x 1 @ 4 ohm, 550W x 1 @ 2 ohm
    • Total Peak Power: 1100W
    • CEA-2006 Compliant
    • Bass Boost: 0-18 dB
    • Heavy Duty Aluminum Alloy Convection Heatsink
    • Dimensions: 13-3/16"L x 7-1/2"W x 2"H

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      FAQ Frequently asked questions in Discontinued Monoblock Amplifiers


      A monoblock amplifier is a single-channel amplifier designed to power a single speaker or subwoofer. Unlike multi-channel amplifiers that can power multiple speakers simultaneously, a monoblock amplifier is dedicated to driving a specific speaker, typically a subwoofer. The advantage of a monoblock amplifier lies in its specialized design, which allows it to deliver higher power output to the subwoofer without interference from other speakers. This dedicated power delivery results in enhanced bass response and cleaner, more impactful low-frequency reproduction, making monoblock amplifiers a popular choice for car audio enthusiasts seeking powerful bass performance.
      Monoblock amplifiers are specifically designed to power subwoofers and are not intended for use with other speakers in your audio system. They usually have a single output channel optimized for low-frequency signals, making them unsuitable for driving mid-range or high-frequency speakers. For other speakers like door speakers or tweeters, you should use multi-channel amplifiers or dedicated channels on an audio processor. Using a monoblock amplifier for full-range speakers can result in poor audio performance and potential damage to the speakers.
      Monoblock amplifiers are compatible with most subwoofers, but it's crucial to consider the amplifier's power output and the subwoofer's power handling capabilities. The amplifier's power rating should match or slightly exceed the subwoofer's RMS power handling to ensure optimal performance and prevent overloading the subwoofer. Additionally, check the impedance (ohms) of both the amplifier and the subwoofer to ensure they match. Most monoblock amplifiers can handle both 2-ohm and 4-ohm loads, but some can also operate at 1-ohm, providing flexibility in subwoofer wiring configurations.
      No, monoblock amplifiers are not designed for bridging, as they are already single-channel amplifiers dedicated to powering a single subwoofer. Attempting to bridge a monoblock amplifier can cause damage to the amplifier and subwoofers. If you need to power multiple subwoofers, consider using multi-channel amplifiers or multiple monoblock amplifiers, each dedicated to driving a separate subwoofer. Sonic Electronix offers a wide selection of multi-channel amplifiers that can power multiple subwoofers simultaneously, ensuring optimal performance and protection for your audio system.
      Monoblock amplifiers can generate a significant amount of heat, especially when driving powerful subwoofers at high volume levels. While they don't require special cooling or ventilation compared to other amplifier types, it's essential to provide adequate airflow around the amplifier to dissipate heat effectively. Avoid mounting the amplifier in enclosed spaces or areas with limited ventilation, as this can lead to overheating and reduced performance. In some cases, installing a cooling fan or using amplifier cooling solutions can help maintain optimal operating temperatures. If you have concerns about amplifier heat, Sonic Electronix's knowledgeable staff can recommend suitable cooling solutions for your specific setup. Monoblock amplifiers are an excellent choice for enhancing the bass performance in your car audio system, providing dedicated power delivery to your subwoofers for impactful and detailed low-frequency sound reproduction. When used correctly and matched with the right subwoofers, monoblock amplifiers can elevate your car audio experience to new depths of bass excellence.
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