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  1. Home
  2. Discontinued Car Audio & Electronics
  3. Discontinued Car Amplifiers
  4. Discontinued Monoblock Amplifiers

Discontinued 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.
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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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You are currently viewing discontinued products.

Sony XM-1S Open Box

500 watts, Slim Series MonoBlock Amplifier

XM-1S big DISCONTINUED
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Sony XM-1S Open Box

500 watts, Slim Series MonoBlock Amplifier

500 watts, Slim Series MonoBlock Amplifier • RMS Power Output: 4 ohm: 290 watts x 1 / 2 ohm: 500 watts x 1 • Frequency Response: 5 Hz - 300 Hz • Class-D amplifier design • MOSFET outputs and power supply • Speaker-level inputs with high-level sensing turn-on • Preamp inputs and outputs

500 watts, Slim Series MonoBlock Amplifier • RMS Power Output: 4 ohm: 290 watts x 1 / 2 ohm: 500 watts x 1 • Frequency Response: 5 Hz - 300 Hz • Class-D amplifier design • MOSFET outputs and power supply • Speaker-level inputs with high-level sensing turn-on • Preamp inputs and outputs

Planet Audio AC1500.1M - Open Box, Good Condition (Used)

1500W Max Anarchy Series Monoblock Power Amplifier Open Box Complete (Good, Used)

AC1500.1M big DISCONTINUED
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Planet Audio AC1500.1M - Open Box, Good Condition (Used)

1500W Max Anarchy Series Monoblock Power Amplifier Open Box Complete (Good, Used)

• 4 ohm: 700 watts x 1 chan.
• 2 ohm: 1100 watts x 1 chan.
• Peak: 1500W x 1 @ 2 ohm
• Illuminated Logo
• Bass Boost 0-18 dB
• Chrome-Plated Connections
• Dimensions: 10"L x 10"W x 2-3/16"H

• 4 ohm: 700 watts x 1 chan.
• 2 ohm: 1100 watts x 1 chan.
• Peak: 1500W x 1 @ 2 ohm
• Illuminated Logo
• Bass Boost 0-18 dB
• Chrome-Plated Connections
• Dimensions: 10"L x 10"W x 2-3/16"H

Kicker DX1000.1 (11DX1000.1)

1000W RMS Monoblock Class D DX Series Amplifier

11DX1000.1 big DISCONTINUED
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Kicker DX1000.1 (11DX1000.1)

1000W RMS Monoblock Class D DX Series Amplifier

• RMS: 550W x 1 @ 4 ohm, 1000W x 1 @ 2 ohm
• Total RMS Power: 1000W
• CEA-2006 Compliant
• Bass Boost 0-12 dB
• Balanced Differential Inputs for Noise Elimination
• Dimensions: 10-1/4"L x 8-5/16"W x 2-1/4"H

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• RMS: 550W x 1 @ 4 ohm, 1000W x 1 @ 2 ohm
• Total RMS Power: 1000W
• CEA-2006 Compliant
• Bass Boost 0-12 dB
• Balanced Differential Inputs for Noise Elimination
• Dimensions: 10-1/4"L x 8-5/16"W x 2-1/4"H

Pioneer PRS-D3000SPL

2000W Max, Monoblock Subwoofer Amplifier

PRS-D3000SPL big DISCONTINUED
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Pioneer PRS-D3000SPL

2000W Max, Monoblock Subwoofer Amplifier

2000 Watts Monoblock Subwoofer Amplifier • MOSFET power supply • Variable Crossover • Subsonic filter • 12dB bass boost

2000 Watts Monoblock Subwoofer Amplifier • MOSFET power supply • Variable Crossover • Subsonic filter • 12dB bass boost

Rockford Fosgate Power T40001bd Open Box

(Open Box)4000 watts, Class BD MonoBlock Power Series Amplifier

T40001bd-OB big DISCONTINUED
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Rockford Fosgate Power T40001bd Open Box

(Open Box)4000 watts, Class BD MonoBlock Power Series Amplifier

4000W RMS Class BD Amplifier • 4,000W RMS @ 1 Ohm • 2,000W RMS @ 2 Ohm • Wired Bass Remote Included (35 - 70Hz, 0 - 18dB) • 1/0 AWG power and ground connections with internal ANL fusing • Preamp outputs • Low-Pass and Infrasonic filters • 0 - 180 Degree Phase Control

4000W RMS Class BD Amplifier • 4,000W RMS @ 1 Ohm • 2,000W RMS @ 2 Ohm • Wired Bass Remote Included (35 - 70Hz, 0 - 18dB) • 1/0 AWG power and ground connections with internal ANL fusing • Preamp outputs • Low-Pass and Infrasonic filters • 0 - 180 Degree Phase Control

JBL GTO-501EZ (Open Box)

Monoblock GTO Series Class D Car Amplifier

GTO-501EZ big DISCONTINUED
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JBL GTO-501EZ (Open Box)

Monoblock GTO Series Class D Car Amplifier

• RMS: 350W x 1 @ 4 ohm, 500W x 1 @ 2 ohm
• Total Peak Power: 770W
• CEA-2006 Compliant
• Variable Bass Boost: 0 to +12 dB
• Class D Circuitry
• Dimensions: 8-7/16"W x 9-11/16"L x 2-5/8"H

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• RMS: 350W x 1 @ 4 ohm, 500W x 1 @ 2 ohm
• Total Peak Power: 770W
• CEA-2006 Compliant
• Variable Bass Boost: 0 to +12 dB
• Class D Circuitry
• Dimensions: 8-7/16"W x 9-11/16"L x 2-5/8"H

Crunch PZT1500.1

1500W Max, Power Zone Series Monoblock Car Amplifier

PZT1500.1 big DISCONTINUED
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Crunch PZT1500.1

1500W Max, Power Zone Series Monoblock Car Amplifier

Single-Channel Power Zone Series Car Amplifier • Monoblock • 375W @ 4 ohm • 750W @ 2 ohm • 1500W @ 1 ohm • Subsonic Filter • Soft-Start Circuitry • Nickel-Plated Contacts • Illuminated Crunch Logo

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Single-Channel Power Zone Series Car Amplifier • Monoblock • 375W @ 4 ohm • 750W @ 2 ohm • 1500W @ 1 ohm • Subsonic Filter • Soft-Start Circuitry • Nickel-Plated Contacts • Illuminated Crunch Logo

Rockford Fosgate Punch P600.1bd R/B

(Factory Refurbished) 600 Watt Class-bd Monoblock Amplifier (2006-2007 Model)

P600.1bd big DISCONTINUED
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Rockford Fosgate Punch P600.1bd R/B

(Factory Refurbished) 600 Watt Class-bd Monoblock Amplifier (2006-2007 Model)

600W Class-bd Monoblock Amplifier • 325W x 1 chan. @ 4 Ohm • 600W x 1 chan. @ 2 Ohm • mass heatsink design • special design TO-247 MOSFETs • top mounted LED indicators • CEA-2006 compliant

600W Class-bd Monoblock Amplifier • 325W x 1 chan. @ 4 Ohm • 600W x 1 chan. @ 2 Ohm • mass heatsink design • special design TO-247 MOSFETs • top mounted LED indicators • CEA-2006 compliant

MTX Audio TA3401 Thunder 3401 R/B

Class D Monoblock Amplifier Thunder3401

TA3401 big DISCONTINUED
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MTX Audio TA3401 Thunder 3401 R/B

Class D Monoblock Amplifier Thunder3401

400 watts RMS x 1 @ 2 • selectable low-pass crossovers • wired remote ThunderEQ bass boost • preamp outputs • speaker-level inputs with SmartEngage

400 watts RMS x 1 @ 2 • selectable low-pass crossovers • wired remote ThunderEQ bass boost • preamp outputs • speaker-level inputs with SmartEngage

Infinity Reference 1600a R/B

(Factory Refurbished) 894W Max, Reference Series Class D Monoblock Amplifier (REF1600A)

1600A big DISCONTINUED
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Infinity Reference 1600a R/B

(Factory Refurbished) 894W Max, Reference Series Class D Monoblock Amplifier (REF1600A)

Reference Series Class D Monoblock Amplifier • 400W x 1 chan. @ 4 ohm • 600W x 1 chan. @ 2 ohm • MOSFET power supply • Gold-plated preamp RCA outputs • Wired remote bass level control included

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Reference Series Class D Monoblock Amplifier • 400W x 1 chan. @ 4 ohm • 600W x 1 chan. @ 2 ohm • MOSFET power supply • Gold-plated preamp RCA outputs • Wired remote bass level control included

JL Audio 600/1v3 , Open Box (Very Good, Used)

600W RMS Monoblock Slash v3 Series Class D Car Amplifier

600/1v3 big DISCONTINUED
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JL Audio 600/1v3 , Open Box (Very Good, Used)

600W RMS Monoblock Slash v3 Series Class D Car Amplifier

• Item Condition - Very Good, Used
• Peak: 600W x 1 @ 4 ohm, 600W x 1 @ 3 ohm, 600W x 1 @ 2, 600W x 1 @ 1.5 ohm
• Total RMS Power: 600W
• R.I.P.S. Power Supply
• Parametric Bass EQ
• Fully Variable Infrasonic Filter
• Dimensions: 13.40"L x 9.25"W x 2.36"H

• Item Condition - Very Good, Used
• Peak: 600W x 1 @ 4 ohm, 600W x 1 @ 3 ohm, 600W x 1 @ 2, 600W x 1 @ 1.5 ohm
• Total RMS Power: 600W
• R.I.P.S. Power Supply
• Parametric Bass EQ
• Fully Variable Infrasonic Filter
• Dimensions: 13.40"L x 9.25"W x 2.36"H

DC Audio (Soundlab) 2.0k Open Box Complete

2000W Competition Series Class D Monoblock Amplifier

2.0k big DISCONTINUED
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DC Audio (Soundlab) 2.0k Open Box Complete

2000W Competition Series Class D Monoblock Amplifier

• Item Condition: Open Box Complete
• RMS Power: 600W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm, 2000W x 1 @ 1 ohm
• Strappable for Up to 4,000W of Power
• Variable Low Pass Filter
• Dimensions: 9.38" W x 17.72" L x 2.35" H

• Item Condition: Open Box Complete
• RMS Power: 600W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm, 2000W x 1 @ 1 ohm
• Strappable for Up to 4,000W of Power
• Variable Low Pass Filter
• Dimensions: 9.38" W x 17.72" L x 2.35" H

Lanzar OPTI4601D

4600W RMS, Monoblock Class D OptiDrive Series Car Amplifier

OPTI4601D big DISCONTINUED
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Lanzar OPTI4601D

4600W RMS, Monoblock Class D OptiDrive Series Car Amplifier

• RMS: 1050W x 1 @ 4 ohm, 1980W x 1 @ 2 ohm, 3025W x 1 @ 1 ohm
• Total RMS Power: 4600W
• Class D Circuitry
• Bass Boost: 0-18 dB
• 0.5 Ohm Stable
• Dimensions: 21-3/4"L x 10-11/16"W x 2-1/8"H

• RMS: 1050W x 1 @ 4 ohm, 1980W x 1 @ 2 ohm, 3025W x 1 @ 1 ohm
• Total RMS Power: 4600W
• Class D Circuitry
• Bass Boost: 0-18 dB
• 0.5 Ohm Stable
• Dimensions: 21-3/4"L x 10-11/16"W x 2-1/8"H

Pioneer GM-D8500M Factory Refurbished

(Factory Refurbished) 1200W Max, GM Digital Series Class D Monoblock Amplifier

GM-D8500M big DISCONTINUED
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Pioneer GM-D8500M Factory Refurbished

(Factory Refurbished) 1200W Max, GM Digital Series Class D Monoblock Amplifier

GM Series Monoblock Car Amplifier • Class D • 300W x 1 Chan. @ 4 Ohm • 600W x 1 Chan. @ 2 Ohm • 1200W Max • 0-12 dB Bass Boost • Chrome-Plated Terminals • Speaker-Level Inputs • Balanced Isolator Input Circuit

GM Series Monoblock Car Amplifier • Class D • 300W x 1 Chan. @ 4 Ohm • 600W x 1 Chan. @ 2 Ohm • 1200W Max • 0-12 dB Bass Boost • Chrome-Plated Terminals • Speaker-Level Inputs • Balanced Isolator Input Circuit

Power Acoustik PS1-2000D R/B

2000W Max, Class D Monoblock Amplifier

PS1-2000D big DISCONTINUED
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Power Acoustik PS1-2000D R/B

2000W Max, Class D Monoblock Amplifier

Power Series Class D Monoblock Car Amplifier • 600W x 1 chan. @ 4 ohm • 900W x 1 chan. @ 2 ohm • 1200W x 1 chan. @ 1 ohm • Full regulated PWM MOSFET power supply • Preamp RCA outputs • 4-Way Protection circuitry

Power Series Class D Monoblock Car Amplifier • 600W x 1 chan. @ 4 ohm • 900W x 1 chan. @ 2 ohm • 1200W x 1 chan. @ 1 ohm • Full regulated PWM MOSFET power supply • Preamp RCA outputs • 4-Way Protection circuitry

Hifonics BRZ1200.1D Refurbished

1200W RMS Brutus Series 1-Channel Monoblock Super Class D Amplifier (BRZ 1200.1D)

BRZ1200.1D big DISCONTINUED
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Hifonics BRZ1200.1D Refurbished

1200W RMS Brutus Series 1-Channel Monoblock Super Class D Amplifier (BRZ 1200.1D)

• 1200W x 1-Chan. @ 1 Ohm
• 900W x 1-Chan. @ 2 Ohm
• 450W x 1-Chan. @ 4 Ohm
• Wired HFR-3 Remote
• 4-Way System Protection
• Phase Shift
• Silver-Plated RCA Inputs

• 1200W x 1-Chan. @ 1 Ohm
• 900W x 1-Chan. @ 2 Ohm
• 450W x 1-Chan. @ 4 Ohm
• Wired HFR-3 Remote
• 4-Way System Protection
• Phase Shift
• Silver-Plated RCA Inputs

Crunch GPA3000.1 (Factory Refurbished)

3000W Monoblock Ground Pounder Series Class A/B Amplifier

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Crunch GPA3000.1 (Factory Refurbished)

3000W Monoblock Ground Pounder Series Class A/B Amplifier

• RMS Power: 750W x 1 @ 4 ohm, 1500W x 1 @ 2 ohm, 3000 x 1 @ 1 ohm
• Variable Bass Boost
• Total Peak Power: 3000W
• 9.05"W x 19.84"L x 2.29"H

• RMS Power: 750W x 1 @ 4 ohm, 1500W x 1 @ 2 ohm, 3000 x 1 @ 1 ohm
• Variable Bass Boost
• Total Peak Power: 3000W
• 9.05"W x 19.84"L x 2.29"H

Kicker ZX2500.1 (08ZX2500.1)

2500W RMS, Class D Monoblock ZX Series Amplifier (ZX25001)

08ZX2500.1 big DISCONTINUED
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Kicker ZX2500.1 (08ZX2500.1)

2500W RMS, Class D Monoblock ZX Series Amplifier (ZX25001)

ZX Series Class D Monoblock Car Amplifier • 1250W x 1 chan. @ 4 ohm • 2500W x 1 chan. @ 2 ohm • Balanced differential inputs make KICKER ZX Amplifiers compatible with any factory radios

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ZX Series Class D Monoblock Car Amplifier • 1250W x 1 chan. @ 4 ohm • 2500W x 1 chan. @ 2 ohm • Balanced differential inputs make KICKER ZX Amplifiers compatible with any factory radios

Rockford Fosgate P3001 R/B

900W Max, Monoblock Amplifier

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Rockford Fosgate P3001 R/B

900W Max, Monoblock Amplifier

Class A/B Monoblock Amplifier • 50 W x 1 @ 4 Ohm RMS • 300 W x 1 @ 2 Ohm RMS • Built in Crossovers • 0 - 18 dB Bass Boost • Bass Remote Included

Class A/B Monoblock Amplifier • 50 W x 1 @ 4 Ohm RMS • 300 W x 1 @ 2 Ohm RMS • Built in Crossovers • 0 - 18 dB Bass Boost • Bass Remote Included

Kicker KXMA1200.1 / 44KXMA12001 (Open Box, Complete)

1200W RMS KXM Series Marine Class-D Monoblock 1 Ohm Stable Amplifier with Wireless Remote Level Control Knob Included

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Kicker KXMA1200.1 / 44KXMA12001 (Open Box, Complete)

1200W RMS KXM Series Marine Class-D Monoblock 1 Ohm Stable Amplifier with Wireless Remote Level Control Knob Included

• 600 Watts RMS x 1 @ 4 ohm
• 1200 Watts RMS x 1 @ 2 ohm
• 1200 Watts RMS x 1 @ 1 ohm (+/- 10%)
• Wireless remote bass level control included
• CEA-2006 Compliant
• Conformal-Coated Circuit Boards
• Black Anodized Aluminum Chassis
• Stainless Steel Mounting Hardware Included

• 600 Watts RMS x 1 @ 4 ohm
• 1200 Watts RMS x 1 @ 2 ohm
• 1200 Watts RMS x 1 @ 1 ohm (+/- 10%)
• Wireless remote bass level control included
• CEA-2006 Compliant
• Conformal-Coated Circuit Boards
• Black Anodized Aluminum Chassis
• Stainless Steel Mounting Hardware Included

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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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