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Discontinued Monoblock Amplifiers

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Hifonics HFi2500D

2500W RMS, Class D Monoblock HFi Series Amplifier (HFi 2500D)

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2500W RMS, Class D Monoblock HFi Series Amplifier (HFi 2500D)

HFi Series Monoblock Class D Car Amplifier • 1700W x 1-Chan. @ 2 Ohm • 2500W 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 • 1700W x 1-Chan. @ 2 Ohm • 2500W x 1-Chan. @ 1 Ohm • Wired HFR-3 Bass Remote • 4-Way System Protection Circuitry • Preamp RCA Outputs • Blue Illuminated Hifonics Badge

Alpine MRX-M55

550W RMS Monoblock Class D X-Power Series Car Amplifier

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550W RMS Monoblock Class D X-Power Series Car Amplifier

• RMS: 350W x 1 @ 4 ohm, 550W x 1 @ 2 ohm
• Total RMS Power: 550W
• CEA-2006 Compliant
• Bass Boost: 0-12 dB at 50 Hz
• Multi-Stage Power Management Circuit
• Dimensions: 9"L x 9-7/8"W x 2-1/4"H

• RMS: 350W x 1 @ 4 ohm, 550W x 1 @ 2 ohm
• Total RMS Power: 550W
• CEA-2006 Compliant
• Bass Boost: 0-12 dB at 50 Hz
• Multi-Stage Power Management Circuit
• Dimensions: 9"L x 9-7/8"W x 2-1/4"H

American Bass VFL44801D

4500W VFL Series Class D Mono Hybrid Car Amplifier

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4500W VFL Series Class D Mono Hybrid Car Amplifier

• 4500W VFL Series Class D Mono Hybrid Car Amplifier
• MAX Power at 1 Ohm: 4500 x 1
• Remote bass knob
• Frequency Response: 15Hz ~ 300KHz
• Signal to Noise Ratio: 85db
• Four way protection: DC, Speaker short, Thermal, Voltage

• 4500W VFL Series Class D Mono Hybrid Car Amplifier
• MAX Power at 1 Ohm: 4500 x 1
• Remote bass knob
• Frequency Response: 15Hz ~ 300KHz
• Signal to Noise Ratio: 85db
• Four way protection: DC, Speaker short, Thermal, Voltage

Kenwood KAC-8103D OB

1000W max. Class D Monoblock Amplifier

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1000W max. Class D Monoblock Amplifier

100 watt Class D Monoblock Amplifier • 300W RMS x 1 @ 4 ohm • 500W RMS x 1 @ 2 ohm • Variable Low-Pass and Infrasonic Filter • S/N Ratio is 85 dB

100 watt Class D Monoblock Amplifier • 300W RMS x 1 @ 4 ohm • 500W RMS x 1 @ 2 ohm • Variable Low-Pass and Infrasonic Filter • S/N Ratio is 85 dB

Hifonics TXi 7508

750W RMS, Class A/B Monoblock Titan TXi Series Amplifier (TXi7508)

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750W RMS, Class A/B Monoblock Titan TXi Series Amplifier (TXi7508)

Titan TXi Series Class AB Monoblock Car Amplifier • 325W x 1 chan. @ 4 ohm • 500W x 1 chan. @ 2 ohm • 750W x 1 chan. @ 1 ohm • Pulse width modulated (PWM) MOSFET power supply • Preamp RCA outputs

Titan TXi Series Class AB Monoblock Car Amplifier • 325W x 1 chan. @ 4 ohm • 500W x 1 chan. @ 2 ohm • 750W x 1 chan. @ 1 ohm • Pulse width modulated (PWM) MOSFET power supply • Preamp RCA outputs

MTX Audio XThunder X1000D

3000W Max, Class D Monoblock X Thunder Amplifier (Same amp as 1000XD)

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3000W Max, Class D Monoblock X Thunder Amplifier (Same amp as 1000XD)

3000W Max, Class D Monoblock Amplifier • 700W x 1 Chan. @ 4ohm • 1000W x 1 Chan. @ 2ohm • 3000W x 1 Chan. Max • Remote Bass Control • Tuned Bass EQ • LED Power Indicator • Anodized Finish • Heavy Duty Aluminum

3000W Max, Class D Monoblock Amplifier • 700W x 1 Chan. @ 4ohm • 1000W x 1 Chan. @ 2ohm • 3000W x 1 Chan. Max • Remote Bass Control • Tuned Bass EQ • LED Power Indicator • Anodized Finish • Heavy Duty Aluminum

MB Quart FX1.700

700W RMS Formula Series Class D Monoblock Amplifier

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700W RMS Formula Series Class D Monoblock Amplifier

• 350 Watts RMS x 1 @ 4 ohm
• 700 Watts RMS x 1 @ 2 ohm
• Frequency Response: 10 - 300 Hz
• Wired remote bass level control included
• Variable Bass Boost: 0 to +9 dB bass boost at 45 Hz

• 350 Watts RMS x 1 @ 4 ohm
• 700 Watts RMS x 1 @ 2 ohm
• Frequency Response: 10 - 300 Hz
• Wired remote bass level control included
• Variable Bass Boost: 0 to +9 dB bass boost at 45 Hz

Precision Power PPI D3000/1

3000W Max, Class D Monoblock Car Amplifier

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3000W Max, Class D Monoblock Car Amplifier

3000W Class D MonoBlock Amplifier • 495W x 1 chan. @ 4 Ohm • 1000W x 1 chan. @ 2 Ohm • QBASS • PWM power supply • gold plated RCA connectors • CEA-2006 compliant

3000W Class D MonoBlock Amplifier • 495W x 1 chan. @ 4 Ohm • 1000W x 1 chan. @ 2 Ohm • QBASS • PWM power supply • gold plated RCA connectors • CEA-2006 compliant

Orion XTR10001 (XTR 10001)

2000W Max Class D Monoblock XTR Series Amplifier

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2000W Max Class D Monoblock XTR Series Amplifier

XTR Class D Monoblock Car Amplifier • 250W x 1 Chan. @ 4 Ohm • 500W x 1 Chan. @ 2 Ohm • 1000W x 1 Chan. @ 1 Ohm • 2000W Max Output • Tuned Bass EQ • IntelliQ Bass Optimization Circuit • Compact Size • Includes Bass Remote

XTR Class D Monoblock Car Amplifier • 250W x 1 Chan. @ 4 Ohm • 500W x 1 Chan. @ 2 Ohm • 1000W x 1 Chan. @ 1 Ohm • 2000W Max Output • Tuned Bass EQ • IntelliQ Bass Optimization Circuit • Compact Size • Includes Bass Remote

Hifonics HFi1000.1D 1000W Amplifier + 1 Farad Capacitor + Premium Amp Kit

1000 Watt RMS Class D Monoblock HFi Series Amplifier + 1.0 Farad Cap & 4 AWG Amp Kit

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1000 Watt RMS Class D Monoblock HFi Series Amplifier + 1.0 Farad Cap & 4 AWG Amp Kit

• Hifonics HFi1000.1D 1000W RMS Monoblock Class D Car Amplifier
• Belva BAK42 Complete 4 Gauge 2-Channel Amplifier Installation Kit
• Belva BB1D 1.0 Farad Capacitor
• 475W x 1 @ 4 ohm
• Premium Power and Ground Wire Provides Optimal Power Transfer

• Hifonics HFi1000.1D 1000W RMS Monoblock Class D Car Amplifier
• Belva BAK42 Complete 4 Gauge 2-Channel Amplifier Installation Kit
• Belva BB1D 1.0 Farad Capacitor
• 475W x 1 @ 4 ohm
• Premium Power and Ground Wire Provides Optimal Power Transfer

Autotek SS3500.1D

3500W Peak Super Sport Class-D Monoblock 1-Ohm Stable Amplifier with Bass Knob Included

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3500W Peak Super Sport Class-D Monoblock 1-Ohm Stable Amplifier with Bass Knob Included

• 875 Watts Max x 1 @ 4 ohm
• 1750 Watts Max x 1 @ 2 ohm
• 3500 Watts Max x 1 @ 1 ohm
• Total Peak Power: 5000 Watts
• Low-Pass and Subsonic Filters Built In
• 0-12dB Variable Bass Boost
• Heavy-Duty Aluminum Heatsink
• Dimensions: 10.5" W x 10.25" L x 2" H

• 875 Watts Max x 1 @ 4 ohm
• 1750 Watts Max x 1 @ 2 ohm
• 3500 Watts Max x 1 @ 1 ohm
• Total Peak Power: 5000 Watts
• Low-Pass and Subsonic Filters Built In
• 0-12dB Variable Bass Boost
• Heavy-Duty Aluminum Heatsink
• Dimensions: 10.5" W x 10.25" L x 2" H

Cadence Q7000M

1200W Monoblock Q Series Class A/B Car Amplifier

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1200W Monoblock Q Series Class A/B Car Amplifier

• RMS: 400W x 1 @ 4 ohm, 600W x 1 @ 2 ohm
• Total Peak Power: 1200W
• High Speed MosFET Power Supply
• 16V Capable Power Supplies
• 24dB Crossover Circuitry
• BiPolar Professional Audio Grade Output Transistors
• 13.7" L x 7.9" W x 2.4 H

• RMS: 400W x 1 @ 4 ohm, 600W x 1 @ 2 ohm
• Total Peak Power: 1200W
• High Speed MosFET Power Supply
• 16V Capable Power Supplies
• 24dB Crossover Circuitry
• BiPolar Professional Audio Grade Output Transistors
• 13.7" L x 7.9" W x 2.4 H

Alpine MRX-M240

2400W RMS Monoblock X-Power Series Class D Car Amplifier

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2400W RMS Monoblock X-Power Series Class D Car Amplifier

• RMS: 1500W x 1 @ 4 ohm, 2400W x 1 @ 2 ohm, 1000W x 1 @ 1 ohm
• Total RMS Power: 2400W
• CEA-2006 Compliant
• Bass Boost: 0-12 dB at 50 Hz
• Multi-Stage Power Management Circuit
• Dimensions: 18"W x 9"D x 2-1/4"H

• RMS: 1500W x 1 @ 4 ohm, 2400W x 1 @ 2 ohm, 1000W x 1 @ 1 ohm
• Total RMS Power: 2400W
• CEA-2006 Compliant
• Bass Boost: 0-12 dB at 50 Hz
• Multi-Stage Power Management Circuit
• Dimensions: 18"W x 9"D x 2-1/4"H

Boss CW1100M

1100W Max, Chaos Wired Series Class D Monoblock Amplifier with Remote Level Control

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1100W Max, Chaos Wired Series Class D Monoblock Amplifier with Remote Level Control

Chaos Wired Series Monoblock Class D Car Amplifier • 1100 Watts Max x 1 Chan. @ 2 Ohm • 250 Watts x 1 Chan. @ 4 Ohm • Matte Black Aluminum Alloy Heatsink • Soft Turn-On Circuit • 2-Way System Protection Circuitry

Chaos Wired Series Monoblock Class D Car Amplifier • 1100 Watts Max x 1 Chan. @ 2 Ohm • 250 Watts x 1 Chan. @ 4 Ohm • Matte Black Aluminum Alloy Heatsink • Soft Turn-On Circuit • 2-Way System Protection Circuitry

Boss DD2600

2600W Max, Class D Monoblock Diablo Series Amplifier

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2600W Max, Class D Monoblock Diablo Series Amplifier

Diablo Series Class D Monoblock Car Amplifier • 900 x 1 chan. @ 4 ohm • 1350 x 1 chan. @ 2 ohm • 2600W x 1 chan. Max • Remote subwoofer control • Variable low pass crossover (24dB) • Input sensitivity selector

Diablo Series Class D Monoblock Car Amplifier • 900 x 1 chan. @ 4 ohm • 1350 x 1 chan. @ 2 ohm • 2600W x 1 chan. Max • Remote subwoofer control • Variable low pass crossover (24dB) • Input sensitivity selector

Polk Audio PA D1000.1 Open Box Missing (Acceptable, Used)

1200W RMS PA D Series Class-D Monoblock Car Amplifier Open Box Missing (Acceptable, Used)

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1200W RMS PA D Series Class-D Monoblock Car Amplifier Open Box Missing (Acceptable, Used)

• 500 Watts RMS x 1 @ 4 ohm
• 800 Watts RMS x 1 @ 2 ohm
• 1200 Watts RMS x 1 @ 1 ohm
• Wired remote bass level control included
• CEA-2006 Compliant
• Signal to Noise Ration: 105 dBA
• Variable Bass Boost: 0 to +12 dB bass boost at 44 Hz
• Dimensions: 6-3/4" W x 12-15/16" L x 1-13/16" H

• 500 Watts RMS x 1 @ 4 ohm
• 800 Watts RMS x 1 @ 2 ohm
• 1200 Watts RMS x 1 @ 1 ohm
• Wired remote bass level control included
• CEA-2006 Compliant
• Signal to Noise Ration: 105 dBA
• Variable Bass Boost: 0 to +12 dB bass boost at 44 Hz
• Dimensions: 6-3/4" W x 12-15/16" L x 1-13/16" H

MB Quart OA500.1

500W Max Class Q1 1-Channel Monoblock Onyx Series Amplifier

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500W Max Class Q1 1-Channel Monoblock Onyx Series Amplifier

• Peak: 250W x 1 @ 4 ohm, 500W x 1 @ 2 ohm
• Total Peak Power: 500W
• 1 Pair of Preamp RCA Outputs
• Variable Bass Boost: 0 to +12 dB
• Class Q1 Circuitry
• Dimensions: 9-7/16"W x 11-13/16"D x 2-1/4"H

• Peak: 250W x 1 @ 4 ohm, 500W x 1 @ 2 ohm
• Total Peak Power: 500W
• 1 Pair of Preamp RCA Outputs
• Variable Bass Boost: 0 to +12 dB
• Class Q1 Circuitry
• Dimensions: 9-7/16"W x 11-13/16"D x 2-1/4"H

MTX Audio JackHammer JH300

600W Max, Class D Monoblock Jack Hammer Series Amplifier

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600W Max, Class D Monoblock Jack Hammer Series Amplifier

JackHammer Series Class D Monoblock Car Amplifier • 200W x 1 chan. @ 4 ohm • 300W x 1 chan. @ 2 ohm • 600W x 1 chan. Max • Stackable configuration • Built-in active fan cooling • Subsonic filter

JackHammer Series Class D Monoblock Car Amplifier • 200W x 1 chan. @ 4 ohm • 300W x 1 chan. @ 2 ohm • 600W x 1 chan. Max • Stackable configuration • Built-in active fan cooling • Subsonic filter

Orion XTR15001 (XTR 15001)

3000W Peak XTR Series Class D Monoblock Amplifier

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3000W Peak XTR Series Class D Monoblock Amplifier

• Orion XTR Series Single-Channel Class D Car Amplifier
• 400W x 1 Chan. @ 4 ohm
• 800W x 1 Chan. @ 2 ohm
• 1600W x 1 Chan. @ 1 ohm
• 3000W Max
• 0-18 Tuned Bass EQ
• LED Power Indicators
• CEA-2006 Compliant

• Orion XTR Series Single-Channel Class D Car Amplifier
• 400W x 1 Chan. @ 4 ohm
• 800W x 1 Chan. @ 2 ohm
• 1600W x 1 Chan. @ 1 ohm
• 3000W Max
• 0-18 Tuned Bass EQ
• LED Power Indicators
• CEA-2006 Compliant

Cadence Q9000M

2400W Monoblock Q Series Class D Car Amplifier

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2400W Monoblock Q Series Class D Car Amplifier

• RMS: 300W x 1 @ 4 ohm, 600W x 1 @ 2 ohm, 1200W x 1 @ 1ohm
• Total Peak Power: 2400W
• High Speed MosFET Power Supply
• 16V Capable Power Supplies
• 24dB Crossover Circuitry
• BiPolar Professional Audio Grade Output Transistors
• 13.7" L x 7.9" W x 2.4 H

• RMS: 300W x 1 @ 4 ohm, 600W x 1 @ 2 ohm, 1200W x 1 @ 1ohm
• Total Peak Power: 2400W
• High Speed MosFET Power Supply
• 16V Capable Power Supplies
• 24dB Crossover Circuitry
• BiPolar Professional Audio Grade Output Transistors
• 13.7" L x 7.9" W x 2.4 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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