Monoblock Amplifiers

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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.

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 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.

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.

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.
The lowest impedance the amplifier will handle when it is not bridged.
The lowest impedance the amplifier will handle when it is bridged.
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 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.
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.

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.

Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
Amplifiers that have been tested to meet specific standards. When a car amplifier meets these standards, you can be sure that it will be able to produce the amount of power specified by the official CEA-2006 rating. Usually, these rating consist of the following items:
  • RMS Power
  • Signal-to-Noise Ratio

This rating applies to both external car amplifiers, as well as the amplifiers inside of in-dash stereos.

This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
This feature will tell you if the amplifier has the capability to connect to a Bluetooth device.
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Alpine MRV-M500

500W V-Power Series Class D Monoblock Digital Amplifier

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500W V-Power Series Class D Monoblock Digital Amplifier

• RMS: 300W x 1 @ 4 ohms, 500W x 1 @ 2 ohms
• Total Peak Power: 1000W
• CEA-2006 Compliant Amplifier
• 4-Channel Speaker-Level Inputs
• Heavy Duty Aluminum Alloy Heat-Sink
• Dimensions: 7-7/8"W x 7-7/8"L x 2-3/16"H

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NVX XKIT42 100% OFC True 4 Gauge Wiring Kit with RCA Cables and Speaker Wire

The reviews speak for themselves, this is awesome wire with everything you need!

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Remote Bass Knob for Alpine Amplifiers

Remote Bass Knob for Alpine Amplifiers

$34.95

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NVX XMICROLOC2

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Kicker CXA1800.1 (46CXA18001T)

1800W RMS CX Series Monoblock Class-D Subwoofer Amp

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1800W RMS CX Series Monoblock Class-D Subwoofer Amp

• 900 watts x 1 channel @ 4 ohms
• 1800 watts x 1 channel @ 2 ohms
• 1800 watts x 1 channel @ 1 ohm
• Class D 1 ohms Stable Monoblock Amplifier

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NVX XKIT02 True 0-Gauge Wiring Kit

In case you didn't know, NVX has top notch wire for your new amp! Don't forget the RCA's!

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2-Channel Line Out Converter

2-Channel Line Out Converter

$79.99

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JL Audio JD1000/1

1000W RMS Class-D Monoblock Subwoofer Amplifier

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1000W RMS Class-D Monoblock Subwoofer Amplifier

• NexD Switching Technology
• Differential-balanced Inputs
• 1000W Class D Mono-block
• Compact and Powerful

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NVX XKIT42 100% OFC True 4 Gauge Wiring Kit with RCA Cables and Speaker Wire

The reviews speak for themselves, this is awesome wire with everything you need!

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NVX Remote Level Bass Control with Digital Voltmeter

Controls bass level and frequency and monitor voltage

$39.99

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2-Channel Line Out Converter

2-Channel Line Out Converter

$79.99

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Rockford Fosgate Prime R2-1200X1

1200W RMS Prime Series Class-D Monoblock Subwoofer Amplifier

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1200W RMS Prime Series Class-D Monoblock Subwoofer Amplifier

• 400 Watts RMS x 1 @ 4 ohms
• 800 Watts RMS x 1 @ 2 ohms
• 1200 Watts RMS x 1 @ 1 ohm
• CEA-2006 Compliant
• R.L.C. Remote Level Control

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NVX XKIT42 100% OFC True 4 Gauge Wiring Kit with RCA Cables and Speaker Wire

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2-Channel Line Out Converter

2-Channel Line Out Converter

$79.99

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Rockford Fosgate Power T1500-1BDCP

1500W RMS Constant Power Series Class BD Monoblock Amplifier

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1500W RMS Constant Power Series Class BD Monoblock Amplifier

• RMS: 1000W x 1 @ 4 ohms, 1500W x 1 @ 2 ohms, 1500W x 1 @ 1 ohm
• Total RMS Power: 1500W
• CEA-2006 Compliant
• Variable Bass Boost: 0 to +18 dB at 45 Hz
• Ultra Efficient Class bD Circuitry
• Dimensions: 14-15/16"L x 8-3/16"W x 2-3/16"H

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NVX XKIT42 100% OFC True 4 Gauge Wiring Kit with RCA Cables and Speaker Wire

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2-Channel Line Out Converter

2-Channel Line Out Converter

$79.99

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JL Audio RD500/1

500W RMS RD Series Class-D Monoblock Subwoofer Amplifier

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500W RMS RD Series Class-D Monoblock Subwoofer Amplifier

• 250 Watts RMS x 1 @ 4 ohms
• 500 Watts RMS x 1 @ 2 ohms
• Total Peak Power: 1000 Watts
• Variable Bass Boost: 0 to +12 dB
• 9.78"W x 6.96"D x 2.13"H

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NVX XKIT42 100% OFC True 4 Gauge Wiring Kit with RCA Cables and Speaker Wire

The reviews speak for themselves, this is awesome wire with everything you need!

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2-Channel Line Out Converter

2-Channel Line Out Converter

$79.99

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NVX XBBR2

Looking to fine tune the bass in your vehicle? Look no further

$89.99

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JBL Stadium 600

1500W Max (600W RMS) 4 ohm Stable Monoblock Amplifier w/ Remote Bass Control

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1500W Max (600W RMS) 4 ohm Stable Monoblock Amplifier w/ Remote Bass Control

• 380 Watts RMS x 1 @ 4 ohms
• 600 Watts RMS x 1 @ 2 ohms
• Total Peak Power: 1500 Watts
• CEA-2006 Compliant
• 0 to 9dB Bass Boost

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NVX XKIT42 100% OFC True 4 Gauge Wiring Kit with RCA Cables and Speaker Wire

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2-Channel Line Out Converter

2-Channel Line Out Converter

$79.99

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Rockford Fosgate R2-500X1

500W Peak Prime Series Class-D Monoblock Car Amplifier

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500W Peak Prime Series Class-D Monoblock Car Amplifier

• 300 Watts RMS x 1 @ 4 ohms
• 500 Watts RMS x 1 @ 2 ohms
• CEA-2006 Compliant
• Top Mounted Control Panel
• Class-D Amplifier

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NVX XKIT42 100% OFC True 4 Gauge Wiring Kit with RCA Cables and Speaker Wire

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2-Channel Line Out Converter

2-Channel Line Out Converter

$79.99

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Taramps BASS 8K

8000W RMS BASS Series Class-D Monoblock Amplifier

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8000W RMS BASS Series Class-D Monoblock Amplifier

• 5120 watts x 1 channel @ 2 ohms
• 8000 watts x 1 channel @ 1 ohm
• Total RMS Power: 8000 watts
• Class D 1 ohms Stable Monoblock Amplifier

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• 5120 watts x 1 channel @ 2 ohms
• 8000 watts x 1 channel @ 1 ohm
• Total RMS Power: 8000 watts
• Class D 1 ohms Stable Monoblock Amplifier

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NVX XKIT02 True 0-Gauge Wiring Kit

In case you didn't know, NVX has top notch wire for your new amp! Don't forget the RCA's!

$149.99

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NVX Remote Level Bass Control with Digital Voltmeter

Controls bass level and frequency and monitor voltage

$39.99

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2-Channel Line Out Converter

2-Channel Line Out Converter

$79.99

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Rockford Fosgate Punch P500X1BD

500W RMS Punch Series Monoblock Class BD Car Power Amplifier

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500W RMS Punch Series Monoblock Class BD Car Power Amplifier

• RMS: 150W x 1 @ 4 ohms, 300W x 1 @ 2 ohms, 500W x 1 @ 1 ohm
• Total RMS Power: 500W
• CEA-2006 Compliant
• Tuned Bass EQ: 0 to +18 dB
• Super Efficient Class BD Circuitry
• Dimensions: 11"L x 7-3/4"W x 2-3/8"H

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NVX XKIT42 100% OFC True 4 Gauge Wiring Kit with RCA Cables and Speaker Wire

The reviews speak for themselves, this is awesome wire with everything you need!

$99.99

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2-Channel Line Out Converter

2-Channel Line Out Converter

$79.99

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NVX XBBR2

Looking to fine tune the bass in your vehicle? Look no further

$89.99

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Rockford Fosgate Power T2500-1bdCP

2500W RMS Constant Power Series Class BD Monoblock Amplifier

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2500W RMS Constant Power Series Class BD Monoblock Amplifier

• RMS: 1500W x 1 @ 4 ohms, 2500W x 1 @ 2 ohms, 2500W x 1 @ 1 ohm
• Total RMS Power: 2500W
• CEA-2006 Compliant
• Variable Bass Boost: 0 to +18 dB at 45 Hz
• Ultra Efficient Class bD Circuitry
• Dimensions: 21-7/8"L x 8-3/16"W x 2-3/16"H

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NVX XKIT02 True 0-Gauge Wiring Kit

In case you didn't know, NVX has top notch wire for your new amp! Don't forget the RCA's!

$149.99

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2-Channel Line Out Converter

2-Channel Line Out Converter

$79.99

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NVX XBBR2

Looking to fine tune the bass in your vehicle? Look no further

$89.99

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NVX VAD27001

2700W RMS Class D Monoblock Car/Marine/Powersports Amplifier with Bass Remote (Marine Certified)

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2700W RMS Class D Monoblock Car/Marine/Powersports Amplifier with Bass Remote (Marine Certified)

• RMS: 1250 x 1 @ 4 ohms, 1950W x 1 @ 2 ohms, 2700W x 1 @ 1 ohm
• Total RMS Power: 2700W
• CEA-2006 Compliant
• Wired Bass Remote Included
• Efficient Class D Design
• Dimensions: 13.7"W x 5.4"D x 2.0H

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• RMS: 1250 x 1 @ 4 ohms, 1950W x 1 @ 2 ohms, 2700W x 1 @ 1 ohm
• Total RMS Power: 2700W
• CEA-2006 Compliant
• Wired Bass Remote Included
• Efficient Class D Design
• Dimensions: 13.7"W x 5.4"D x 2.0H

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50-pack of KN95 masks

Supreme and comfortable KN95 PFF2 Mask Respirators

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NVX XKIT02 True 0-Gauge Wiring Kit

In case you didn't know, NVX has top notch wire for your new amp! Don't forget the RCA's!

$149.99

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2-Channel Line Out Converter

2-Channel Line Out Converter

$79.99

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Limited time!
Kicker CXA1200.1 (46CXA12001T)

1200W Peak (600W RMS) CX Series Class-D Monoblock Amplifier

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1200W Peak (600W RMS) CX Series Class-D Monoblock Amplifier

• 600 Watts RMS x 1 @ 4 ohms
• 1200 Watts RMS x 1 @ 2 ohms
• 1200 Watts RMS x 1 @1 ohm
• Efficient Class-D Monoblock Amplifier
• KickEQ™ 6dB variable bass boost for those additional low frequencies
• FIT+™ (Fail-safe Integration Technology-PLUS) means it works with nearly every radio

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NVX XKIT42 100% OFC True 4 Gauge Wiring Kit with RCA Cables and Speaker Wire

The reviews speak for themselves, this is awesome wire with everything you need!

$99.99

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2-Channel Line Out Converter

2-Channel Line Out Converter

$79.99

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Belva BB5000Dv2 (BB5000D v2)

5000W Max (3000W RMS) Class-D Monoblock BB Series Car Amplifier

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5000W Max (3000W RMS) Class-D Monoblock BB Series Car Amplifier

• RMS: 1200W x 1 @ 4 ohms, 1800W x 1 @ 2 ohms, 3000W x 1 @ 1 ohm
• Total Peak Power: 5000W
• 1 Pair of Preamp Outputs
• Bass Boost 0-12 dB from 30-80 Hz
• Subsonic Filter from 20-50 Hz
• Dimensions: 20-3/8"W x 8-1/4"D x 2-1/4"H

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NVX XKIT02 True 0-Gauge Wiring Kit

In case you didn't know, NVX has top notch wire for your new amp! Don't forget the RCA's!

$149.99

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2-Channel Line Out Converter

2-Channel Line Out Converter

$79.99

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NVX XBBR2

Looking to fine tune the bass in your vehicle? Look no further

$89.99

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Kicker CXA800.1 (46CXA8001)

800W Peak (600W RMS) CX Series Class-D Monoblock Amplifier

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800W Peak (600W RMS) CX Series Class-D Monoblock Amplifier

• 300 Watts RMS x 1 @ 4 ohms
• 600 Watts RMS x 1 @ 2 ohms
• 800 Watts RMS x 1 @ 1 ohm
• Efficient Class-D Monoblock Amplifier
• KickEQ™ 6dB variable bass boost for those additional low frequencies
• FIT+™ (Fail-safe Integration Technology-PLUS) means it works with nearly every radio

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NVX XKIT42 100% OFC True 4 Gauge Wiring Kit with RCA Cables and Speaker Wire

The reviews speak for themselves, this is awesome wire with everything you need!

$99.99

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2-Channel Line Out Converter

2-Channel Line Out Converter

$79.99

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Rockford Fosgate Punch P1000X1bd

1000W RMS Punch Series Monoblock Class BD Car Power Amplifier

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1000W RMS Punch Series Monoblock Class BD Car Power Amplifier

• RMS: 300W x 1 @ 4 ohms, 500W x 1 @ 2 ohms, 1000W x 1 @ 1 ohm
• Total RMS Power: 1000W
• CEA-2006 Compliant
• Tuned Bass EQ: 0 to +18 dB
• Super Efficient Class BD Circuitry
• Dimensions: 13-5/16"L x 7-3/4"W x 2-3/8"H

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NVX XKIT42 100% OFC True 4 Gauge Wiring Kit with RCA Cables and Speaker Wire

The reviews speak for themselves, this is awesome wire with everything you need!

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2-Channel Line Out Converter

2-Channel Line Out Converter

$79.99

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NVX XBBR2

Looking to fine tune the bass in your vehicle? Look no further

$89.99

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Memphis PRX600.1V

600W RMS Power Reference Series Class-D Monoblock Amplifier with Bass Remote

Spend 300+ and Save with Code "Madness"
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600W RMS Power Reference Series Class-D Monoblock Amplifier with Bass Remote

• 250 watts x 1 channel @ 4 ohms
• 400 watts x 1 channel @ 2 ohms
• 600 watts x 1 channel @ 1 ohm
• Total RMS Power: 600 watts
• Class D 1 ohms Stable Monoblock Amplifier

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NVX XKIT42 100% OFC True 4 Gauge Wiring Kit with RCA Cables and Speaker Wire

The reviews speak for themselves, this is awesome wire with everything you need!

$99.99

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2-Channel Line Out Converter

2-Channel Line Out Converter

$79.99

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NVX XBBR2

Looking to fine tune the bass in your vehicle? Look no further

$89.99

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NVX VADM1

500W RMS Class D Monoblock Car/Marine/Powersports Amplifier with Bass Remote

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500W RMS Class D Monoblock Car/Marine/Powersports Amplifier with Bass Remote

• 500 Watt True RMS Output!
• Marine Certified Monoblock Micro Class D Amplifier
• 180W x 1-Chan. @ 4 ohms
• 320W x 1-Chan. @ 2 ohms
• 500W x 1-Chan. @ 1 ohms
• 3-Way System Protection
• 8 Gauge Power and Ground Inputs
• Extremely Small Footprint

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NVX XKIT82 8-Gauge Wiring Kit

In case you didn't know, NVX has top notch wire and this kit has everything you need!

$69.99

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NVX XMICROLOC2

Add a 2-Channel amp without replacing your factory radio

$14.99

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NVX XAD16

8000W RMS X-Series Full-Bridge Class D 1-Ohm Stable Monoblock Amplifier

Spend 300+ and Save with Code "Madness"
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8000W RMS X-Series Full-Bridge Class D 1-Ohm Stable Monoblock Amplifier

• 3000 watts x 1 channel @ 4 ohms
• 5100 watts x 1 channel @ 2 ohms
• 8000 watts x 1 channel @ 1 ohm
• Total RMS Power: 8000 watts
• Frequency Response: 10 - 300 Hz
• CEA-2006 Compliant Amplifier

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NVX XKIT02 True 0-Gauge Wiring Kit

In case you didn't know, NVX has top notch wire for your new amp! Don't forget the RCA's!

$149.99

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2-Channel Line Out Converter

2-Channel Line Out Converter

$79.99

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Kicker CXA400.1

400W RMS CX-Series Class-D Monoblock Amplifier

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400W RMS CX-Series Class-D Monoblock Amplifier

• 150 watts x 1 channel @ 4 ohms
• 300 watts x 1 channel @ 2 ohms
• 400 watts x 1 channel @ 1 ohm
• Total RMS Power: 400 watts
• CEA-2006 Compliant
• Class D 4 ohms Stable Monoblock Amplifier

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NVX XKIT82 8-Gauge Wiring Kit

In case you didn't know, NVX has top notch wire and this kit has everything you need!

$69.99

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NVX XMICROLOC2

Add a 2-Channel amp without replacing your factory radio

$14.99

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    Car Audio Monoblock Amplifiers

    Bass plays a crucial role in sound by making the music feel alive. And if you’re keen on experiencing the full spectrum of sound including rich and deep bass thumps in your audio system: a monoblock amplifier, and a subwoofer is the answer.

    Designed for maximum efficiency and power output originally for a single speaker, a mono amplifier is popularly used to bring a powerful subwoofer to life while minimizing noise and distortion, enabling the subwoofer to release those deep, resonating bass tones that are sure to induce chest-clutching vibrations. Not only that, but with the right type of monoblock amplifier and configuration of recommended impedance levels to each sub, this amp can give power to two or even multiple subwoofers!

    Owning a monoblock amplifier is the first step in upgrading your standard audio system by introducing more power into the mix and putting the best qualities of audio to the surface for a remarkable listening experience. Here at Sonic Electronix, we have a dedicated selection of tried and tested compact monoblock amplifiers including compact-sized Class-D amplifiers that are now the industry standard when it comes to improving your car audio system. Browse through our monoblock amplifier section and discover industry-leading brands such as Pioneer, JVC, NVX, Belva, Kicker, Rockford Fosgate, Cerwin-Vega, and more.

    Amplifier Resources:

    Wire gauge for Amplifiers

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    Popular Brands in Monoblock Amplifiers

    Related Categories

    • Amplifier Wiring Kits

      Get all the cables, wires, and hardware you need to install your new car audio amplifier with one of these power amp kits.

    • Car Subwoofers

      Browse our selection of 12-inch, 10-inch and other popular car subs in here. You'll also find various sub boxes and loaded enclosures, including ones made specifically for your car.

    • Equalizers & Sound Processors

      Find a quality line output converter, digital sound processor, EQ, crossover or bass enhancer in here.

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