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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.
Brutus Series (77)
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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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MA Audio Dual 12" QS Complete Bass Package w/ BONUS AMP KIT!

HK400D + MAK88 Amp Kit + (2) MA120QS + Dual 12" MDF Sealed Box

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MA Audio Dual 12" QS Complete Bass Package w/ BONUS AMP KIT!

HK400D + MAK88 Amp Kit + (2) MA120QS + Dual 12" MDF Sealed Box

HK400D Amplifier + 2) MA120QS Subs + Dual 12" MDF Box + MAK88 Amp Kit • The amplifier will push 200 watts RMS to each subwoofer! Plenty of power to make your car THUMP!

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HK400D Amplifier + 2) MA120QS Subs + Dual 12" MDF Box + MAK88 Amp Kit • The amplifier will push 200 watts RMS to each subwoofer! Plenty of power to make your car THUMP!

EXCLUSIVE

Kicker 07DC122 + Kicker 08ZX300.1

Dual 12" Loaded Vented Comp C12 Subwoofer Enclosure + Matching Monoblock Amplifier

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Kicker 07DC122 + Kicker 08ZX300.1

Dual 12" Loaded Vented Comp C12 Subwoofer Enclosure + Matching Monoblock Amplifier

Dual 12" Vented Enclosure with Kicker Comp Subwoofers • 600W Peak • 300W RMS • 2 Ohm Final Impedance • Oversized ports with flared ends • Embroidered Kicker logo • Heavy duty black carpet • ZX Series Class AB Monoblock Car Amplifier • 300W RMS power output

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Dual 12" Vented Enclosure with Kicker Comp Subwoofers • 600W Peak • 300W RMS • 2 Ohm Final Impedance • Oversized ports with flared ends • Embroidered Kicker logo • Heavy duty black carpet • ZX Series Class AB Monoblock Car Amplifier • 300W RMS power output

Power Acoustik SL-2000D

2000W Max, Class D Monoblock Amplifier (SL2000D)

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Power Acoustik SL-2000D

2000W Max, Class D Monoblock Amplifier (SL2000D)

2000W Class D Monoblock Amplifier • 800 watts @ 4 Ohm • • 1300W @ 2 Ohm • PWM power supply • four way protection circuit • system distress indicator • heavy duty power and speaker terminals

2000W Class D Monoblock Amplifier • 800 watts @ 4 Ohm • • 1300W @ 2 Ohm • PWM power supply • four way protection circuit • system distress indicator • heavy duty power and speaker terminals

Sound Storm (SSL) F2600D R/B

2600W Max, Class D Monoblock Power Amplifier

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Sound Storm (SSL) F2600D R/B

2600W Max, Class D Monoblock Power Amplifier

SSL Series Monoblock Class D Car Amplifier • 750 Watts x 1 Chan. @ 4 Ohm • 1200 Watts x 1 Chan. @ 2 Ohm • 2600 Watts x 1 Chan. @ 1 Ohm • MOSFET PWM Power Supply • Nickel-Plated RCA Level And Screw Terminals

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SSL Series Monoblock Class D Car Amplifier • 750 Watts x 1 Chan. @ 4 Ohm • 1200 Watts x 1 Chan. @ 2 Ohm • 2600 Watts x 1 Chan. @ 1 Ohm • MOSFET PWM Power Supply • Nickel-Plated RCA Level And Screw Terminals

Massive Audio BP8000.1 + Free $100 Gift Card

8000W Max (4000W RMS) Blade Series 2 ohm Stable Monoblock Class-D Amplifier

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Massive Audio BP8000.1 + Free $100 Gift Card

8000W Max (4000W RMS) Blade Series 2 ohm Stable Monoblock Class-D Amplifier

• 2000 Watts RMS x 1 @ 4 ohm
• 4000 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 8000 Watts
• CEA-2006 Compliant
• 0-12db Bass Boost
• Aluminum Heatsink
• Dimensions: 7.5" W x 16.6" L x 2.2" H

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• 2000 Watts RMS x 1 @ 4 ohm
• 4000 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 8000 Watts
• CEA-2006 Compliant
• 0-12db Bass Boost
• Aluminum Heatsink
• Dimensions: 7.5" W x 16.6" L x 2.2" H

EXCLUSIVE

Hifonics HFi1000.1D + Amplifier Kit

1000W RMS, Class D Monoblock HFi Series Amplifier (HFi 10001D) w/ 2 Gauge Amplifier Kit

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Hifonics HFi1000.1D + Amplifier Kit

1000W RMS, Class D Monoblock HFi Series Amplifier (HFi 10001D) w/ 2 Gauge Amplifier Kit

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 • Includes Complete Amplifier Kit

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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 • Includes Complete Amplifier Kit

Hifonics Brutus BRX2016.1D 2000 Watt RMS Amplifier + FREE 0 Gauge Amp Kit

FREE Complete 0 Gauge Amp Installation Wire Kit Included!!!

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Hifonics Brutus BRX2016.1D 2000 Watt RMS Amplifier + FREE 0 Gauge Amp Kit

FREE Complete 0 Gauge Amp Installation Wire Kit Included!!!

• RMS Power: 700W x 1 @ 4 ohm, 1400W x 1 @ 2 ohm, 2000W x 1 @ 1 ohm
• Total Peak Power: 2000W
• Variable Low Pass Filter
• Dimensions: 9.8" W x 14.7" L x 2.4" H

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• RMS Power: 700W x 1 @ 4 ohm, 1400W x 1 @ 2 ohm, 2000W x 1 @ 1 ohm
• Total Peak Power: 2000W
• Variable Low Pass Filter
• Dimensions: 9.8" W x 14.7" L x 2.4" H

Hifonics Brutus BRZ1700.1D Open Box

(Open Box) 1700W RMS, Brutus Series 1-Channel Monoblock Super Class D Amplifier (BRZ 1700.1D)

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Hifonics Brutus BRZ1700.1D Open Box

(Open Box) 1700W RMS, Brutus Series 1-Channel Monoblock Super Class D Amplifier (BRZ 1700.1D)

Brutus Series Monoblock Class D Car Amplifier • 1700W x 1-Chan. @ 1 Ohm • 1200W x 1-Chan. @ 2 Ohm • 600W x 1-Chan. @ 4 Ohm • Wired HFR-3 Remote • 4-Way System Protection • Phase Shift • Silver-Plated RCA Inputs

Brutus Series Monoblock Class D Car Amplifier • 1700W x 1-Chan. @ 1 Ohm • 1200W x 1-Chan. @ 2 Ohm • 600W x 1-Chan. @ 4 Ohm • Wired HFR-3 Remote • 4-Way System Protection • Phase Shift • Silver-Plated RCA Inputs

2 Kicker CompR 12" 43CWR124 Subwoofers + Alpine PDX-M12 1200W RMS Amplifier

2400 Watt Max/1200 Watt RMS Car Audio Bass Package

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2 Kicker CompR 12" 43CWR124 Subwoofers + Alpine PDX-M12 1200W RMS Amplifier

2400 Watt Max/1200 Watt RMS Car Audio Bass Package

• RMS: 1200W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm
• 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

• RMS: 1200W x 1 @ 4 ohm, 1200W x 1 @ 2 ohm
• 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

MB Quart DSC 1500.1D (DSC1500.1D)

1500W RMS, Discus Series Class D Monoblock Amplifier (DSC1500.1D)

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MB Quart DSC 1500.1D (DSC1500.1D)

1500W RMS, Discus Series Class D Monoblock Amplifier (DSC1500.1D)

Discus Series Class D Monoblock Car Amplifier • 375W x 1 chan. @ 4 ohm • 750W x 1 chan. @ 2 ohm • 1500W x 1 chan. @ 1 ohm • Unbalanced RCA inputs • Damping Factor: >180 • Subsonic Filter (15-35 Hz)

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Discus Series Class D Monoblock Car Amplifier • 375W x 1 chan. @ 4 ohm • 750W x 1 chan. @ 2 ohm • 1500W x 1 chan. @ 1 ohm • Unbalanced RCA inputs • Damping Factor: >180 • Subsonic Filter (15-35 Hz)

Crunch CR20001RB

Refurbished 2000W Max, Power One Series Monoblock 1-Channel Amplifier

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Crunch CR20001RB

Refurbished 2000W Max, Power One Series Monoblock 1-Channel Amplifier

Power One Series Monoblock Car Amplifier • Class AB • 2000W x 1 Chan. @ 1 ohm • 1000W x 1 Chan. @ 2 ohm • 500W x 1 Chan. @ 4 ohm • Tuned Bass EQ • Preamp RCA Outputs • Power and Protection LED Indicators

2

Power One Series Monoblock Car Amplifier • Class AB • 2000W x 1 Chan. @ 1 ohm • 1000W x 1 Chan. @ 2 ohm • 500W x 1 Chan. @ 4 ohm • Tuned Bass EQ • Preamp RCA Outputs • Power and Protection LED Indicators

Phoenix Gold R5.0:1 R/B

(Factory Refurbished) Octane R 5.0:1 Class A/B MonoBlock Amplifier

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Phoenix Gold R5.0:1 R/B

(Factory Refurbished) Octane R 5.0:1 Class A/B MonoBlock Amplifier

500 watts max, 400 watts RMS (at 2 ohm) monoblock sub amplifier • neon blue illumination • silver connections • Aux output • Twin "T" Bass EQ circuitry •

500 watts max, 400 watts RMS (at 2 ohm) monoblock sub amplifier • neon blue illumination • silver connections • Aux output • Twin "T" Bass EQ circuitry •

Bazooka MAA1500

500W Monoblock Marine Amplifier

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Bazooka MAA1500

500W Monoblock Marine Amplifier

500 Watt Monoblock Marine Amplifier • Stainless Steel Cover Plates and Hardware • 4 Ohm: 320 watts RMS x 1 chan. • 2 Ohm: 500 watts RMS x 1 chan. • Aluminum extruded heat sink • Remote Bass Control

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500 Watt Monoblock Marine Amplifier • Stainless Steel Cover Plates and Hardware • 4 Ohm: 320 watts RMS x 1 chan. • 2 Ohm: 500 watts RMS x 1 chan. • Aluminum extruded heat sink • Remote Bass Control

Absolute DPA4000

4000W Max Power Series Monoblock MOSFET Power Amplifier

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Absolute DPA4000

4000W Max Power Series Monoblock MOSFET Power Amplifier

Power Series Monoblock Car Amplifier • 4000W MAX • 400W x 1-Chan @ 2 Ohm MAX • Wired Remote Bass Level Control • Variable Bass Boost • Preamp RCA Outputs • Variable Low-Pass Filter

Power Series Monoblock Car Amplifier • 4000W MAX • 400W x 1-Chan @ 2 Ohm MAX • Wired Remote Bass Level Control • Variable Bass Boost • Preamp RCA Outputs • Variable Low-Pass Filter

Phoenix Gold TI800.1 Titanium Series

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Phoenix Gold TI800.1 Titanium Series

1000W x 1 Dynamic Power • 800W x 1 RMS at 2 Ohm • high-pass/low-pass crossovers • Low Pass Level (LPL) Control

1000W x 1 Dynamic Power • 800W x 1 RMS at 2 Ohm • high-pass/low-pass crossovers • Low Pass Level (LPL) Control

Alpine X-A90M - Like New Open Box

900 W RMS X-Series Class-D Monoblock 2 ohm Stable Amplifier

X-A90M big DISCONTINUED
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Alpine X-A90M - Like New Open Box

900 W RMS X-Series Class-D Monoblock 2 ohm Stable Amplifier

• 600 Watts RMS x 4 @ 4 ohm
• 900 Watts RMS x 4 @ 2 ohm
• CEA-2006 Compliant
• Low Pass and High Pass Filters
• 0 - 12dB Bass Boost
• Aluminum Heatsink
• Dimensions: 11-3/4" W x 7-5/8" L x 2" H

• 600 Watts RMS x 4 @ 4 ohm
• 900 Watts RMS x 4 @ 2 ohm
• CEA-2006 Compliant
• Low Pass and High Pass Filters
• 0 - 12dB Bass Boost
• Aluminum Heatsink
• Dimensions: 11-3/4" W x 7-5/8" L x 2" H

** FINAL CLOSEOUT ** MA Audio M1889I

Monoblock Amplifier

M1889I big DISCONTINUED
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** FINAL CLOSEOUT ** MA Audio M1889I

Monoblock Amplifier

800 Watt RMS Mono-Block High Performance Amplifier • 400W RMS x 1 @ 4 Ohm • 800W RMS x 1 @ 2 Ohm • Full MOSFET Circuitry • High/Low Level Inputs • Variable High/Low Pass Cross-Over 50 - 250 Hz • Variable Bass Boost 0-18dB @ 45Hz

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800 Watt RMS Mono-Block High Performance Amplifier • 400W RMS x 1 @ 4 Ohm • 800W RMS x 1 @ 2 Ohm • Full MOSFET Circuitry • High/Low Level Inputs • Variable High/Low Pass Cross-Over 50 - 250 Hz • Variable Bass Boost 0-18dB @ 45Hz

JL Audio 250/1

250 watts, Class D Monoblock Amplifier

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JL Audio 250/1

250 watts, Class D Monoblock Amplifier

250W RMS Monoblock Amplifier

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250W RMS Monoblock Amplifier

Alpine PDX-1.600

600 watts, Class D Monoblock Power Density Digital Amplifier (PDX1.600)

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Alpine PDX-1.600

600 watts, Class D Monoblock Power Density Digital Amplifier (PDX1.600)

Class D Monoblock Power Density Digital Amplifier • 600 watts RMS x 1 at 2/4 ohm • CEA-2006 compliant • MOSFET power and output stages • Frequency Response: 20 Hz - 200 Hz

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Class D Monoblock Power Density Digital Amplifier • 600 watts RMS x 1 at 2/4 ohm • CEA-2006 compliant • MOSFET power and output stages • Frequency Response: 20 Hz - 200 Hz

DUB Mag Audio DUB4001 R/B

400W RMS Monoblock Amplifier

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DUB Mag Audio DUB4001 R/B

400W RMS Monoblock Amplifier

1-Channel Class-A/B Amplifier • 400W RMS x 1 @ 4 • Brushed Aluminum Chassis • Top Mount Controls with Blue Illumination • Chrome DUB Cooling Fan Grille

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1-Channel Class-A/B Amplifier • 400W RMS x 1 @ 4 • Brushed Aluminum Chassis • Top Mount Controls with Blue Illumination • Chrome DUB Cooling Fan Grille

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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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