Class D monoblock amps are a great choice for anyone who is looking to add some extra power to their car audio system. Class D amplifiers allow your music to play louder and cleaner than ever before, while also saving space and energy in the process.

Starting in the world of car audio can be overwhelming. It can be full of complicated math, competition between brands, and really loud sounds. Even if you’ve been doing it for a while, it can still be scary. But, if you want to start building your custom audio system, starting with subwoofers and monoblock amps is a good idea.

Best Class D Monoblock Amp 2023: Monoblock amplifiers are like super powerful speakers that have only one channel. They are made to work with subwoofers because subwoofers need a lot of power to make their sound. Regular speakers don’t need as much power as subwoofers.

In this guide, we want to help you buy a new amp for your car without too much stress. We have a quick guide to get you started. Then, we have a list of amplifiers with reviews that represent a good variety of products you can choose from.


The purpose of the guide is to provide helpful information and guidance to individuals who are interested in purchasing a new car audio amplifier. It aims to make the process of selecting an amplifier less confusing and less stressful by offering a quick start guide and a list of amplifier options with reviews.

The guide seeks to help individuals make an informed decision by providing information about the features that matter when choosing an amplifier, such as power output, efficiency, sound quality, size and design, durability and reliability, and input and output options.

Ultimately, the goal of the guide is to make buying a new amplifier for a car audio system as easy and painless as possible.


A monoblock amplifier is an amplifier with only one power output. Also known as “mono amps”, they are typically used to drive subwoofers, although many audiophiles use them for other applications.

Class D amplifiers are a type of amplifier that uses digital switching to amplify the audio signal.
Now you will be clear that;


In class D amplifiers, the analog input voltage is converted into a series of on/off pulses with each pulse representing a small amount of change in the input signal. In this way, they function similarly to binary computers.

If you want to know how to wire high level input on an amplifier, then click here!


Class D car amplifiers have become increasingly popular in recent years due to their numerous benefits. Here are some of the key benefits of using a Class D car amplifier:


Class D amplifiers are highly efficient and can convert up to 90% of the electrical energy into usable sound. This means that they consume less power than other amplifier classes, which can result in improved fuel efficiency and longer battery life in a car.


Class D amplifiers are typically smaller and lighter than other amplifier classes, making them easier to install in a car. Their compact size also makes them ideal for use in tight spaces where a larger amplifier would not fit.


Class D amplifiers produce less heat than other amplifier classes, which can help prolong the life of the amplifier and other components in the car’s audio system.


Class D amplifiers can produce high-quality sound with low distortion levels. They are also capable of producing more power than other amplifier classes, allowing for a louder and clearer sound output.


Class D amplifiers can be used with a wide range of speakers, including subwoofers and full-range speakers. They also offer a range of input and output options, allowing users to connect to a variety of audio sources and adjust the amplifier settings to match their preferences.

Overall, Class D car amplifiers offer numerous benefits that make them an attractive choice for car audio enthusiasts. With their efficiency, size, heat dissipation, sound quality, and versatility, Class D amplifiers can provide a superior audio experience for drivers and passengers alike.


Planet Audio TR5000


  • Class D
  • 5000 Watts
  • Mosfet Power Supply

CT Sounds CT-1500


  • Class D
  • 1500 Watts RMS
  • Frequency response: 0 to 320 Hz
  • MOSFET power supply
  • 4-way protection

Sundown Audio SFB-3000D


  • 3000W
  • Class D
  • Crossover: High Pass Filter: 15 to 80Hz
  • Maximum Supply Voltage: 16V DC
  • Dimensions: TBA


When we say “monoblock,” it means the amplifier only has one channel. “Class D” is just a classification for how the amplifier works. These amps are very efficient and don’t make a lot of heat.

It’s important to know that just because an amplifier is a monoblock, it doesn’t mean it’s not a Class D amplifier. So, comparing the two isn’t always straightforward.


The best type of amplifier for subwoofers is either Class AB or Class H. These amplifiers are designed to work well with subwoofers. Class D amplifiers may not work as well because they are not fast enough to keep up with the bass.

I have created a list of recommended amplifiers for subwoofers and bass, which you can find in my posts about the best amps for subwoofers and the best amps for bass.


A monoblock amplifier is good for providing a lot of power through a single channel to a subwoofer. These types of amplifiers are commonly used to power subwoofers because they provide the high amount of power that subwoofers require.


These subwoofer amplifiers are some of our best-sellers, and our customers have given them an average rating of four or more stars. This means that not only do our customers buy these amplifiers, but they are also very satisfied with their purchase and take the time to provide feedback after using them for a while.

This collection of subwoofer amplifiers can be a good starting point for you to search for your own amplifier. If you want to learn more about what to look for when shopping for a monoblock subwoofer amplifier, you can dive deeper into the topic.


Here are some of the most important factors to consider before buying a monoblock amp:


Since Class D amps are smaller than other types of amps, you have many options when it comes to size. This makes them ideal for a wide range of applications.


It’s a good idea to check the power output capabilities of any monoblock you are considering buying. Most standard amps provide around 400W per channel, although some high-end amps can provide far more power output than this.

It’s important to note that the most efficient amp won’t necessarily be the most powerful one. Also, be aware that your monoblock amplifier needs to match your subwoofer’s RMS power handling in order to avoid any issues.


The design of your monoblock amp can have a big impact on how it fits into your vehicle, so choose one that is both aesthetically appealing and functional.


The impedance of the amplifier relative to the speaker load determines how much power can be delivered. For example, an amp that is 4 ohms stable will only drive a 2 ohm load half as loud because it’s putting out twice the amount of power.

Similarly, a 4-ohm amp driving a 2-ohm load is also putting out twice the amount of power to the speaker and it will be louder.


Amplifier Classes are defined by how well they can handle different impedances when delivering power to a speaker. They range from A (best for low impedance) to F (best for high impedance).


Speaker sensitivity measures how loud a speaker can get, in decibels, when given one watt of power. For instance, if your speaker has a sensitivity of 85 dB, it will produce moderate volume with just one watt of power. Each additional watt of power will increase the volume by 3 dB.

Speaker sensitivity is helpful when you want to know how much power is required to reach a certain volume. If a speaker has higher sensitivity, it will need less power to produce the same volume as a less sensitive speaker.


Class D amplifiers are considered “digital” amps because they convert the audio signal to a pulse-width modulation waveform.

The output of the amp is switched on and off so quickly that it creates an illusion that the power is continuously being delivered. This allows for substantial amounts of power to be created with relatively small amounts of electrical current.


Some amps are designed to work with certain subs, but not others. Make sure that the amp you buy works with your subwoofer before purchasing it.


The sonic difference between an amplifier is almost negligible unless the listener has a trained ear and/or uses a high-end hookup. The quality of the components and circuitry affects the sound quality.
So it is more important to find an amplifier that can power your speaker properly than find one with great sound quality.


Amplifiers have a wide range of frequency responses, but they are typically designed to power specific speakers and therefore this isn’t as important as other factors.


Price is always a factor, but it shouldn’t be the only factor when purchasing an amplifier. An amp that is inexpensive can still deliver outstanding power to your speaker and outperform other amplifiers that are more expensive.


There are some amps out there that have extra features like fan cooling, variable crossover, or protection circuits.

These can be helpful, but usually, they don’t have a huge impact on performance and therefore should only be considered if you need the features that they provide.


Most amps come with a warranty to protect against defects for a certain period of time after purchase. This protects your investment in case of something malfunctions with the amp.

You should choose an amplifier that comes with a warranty because it will protect you in the event that something goes wrong with the amp during normal use.

But with these considerations, you also have to know about signs of a bad car amplifier, here is the guide!


Amplifiers come with different protective features to safeguard both the amplifier and speaker. These features prevent the amplifier from overheating or the speaker from getting damaged. It is essential to choose an amp that has protective features to prevent short-circuiting and overheating.


  1. Best Digital Class D Monoblock Amp – Planet Audio PL3000.1D
  2. Best 1000 watt mono amp – Audiopipe APMN-1300
  3. Best Class D Mono Subwoofer Amplifier – Hifonics ZRX2416.1D Zeus
  4. Best monoblock power amplifier – MRV-M500 – Alpine Monoblock 500W
  5. Best monoblock amp under $200 – Taramp’s HD 3000 1 Ohm
  6. Best 1 ohm stable mono class d amp – Skar Audio RP-1500.1D
  7. Best 5000 watts class d mono amp – Planet Audio TR5000.1D
  8. Best monoblock amplifier home audio – Alpine S-A60M S-Series
  9. Best Compact class d mono amp – Kicker 46CXA8001
  10. Best 3000 watt amp – Sundown Audio SFB-3000D

«Our Product Review Process»


Let’s dive in to select your best monoblock amp 2023…


Are you looking for an amplifier that will give you the power to push your subwoofers? The Planet Audio PL3000.1D Class D Car Amplifier is a great option for anyone who wants to get more out of their car audio system. You’ll be able to push your subwoofers with ease.

And even use this amp as part of a multi-channel setup so you can really pump up the volume in your car. This amplifier has everything you need to make sure your music sounds amazing on the road!

With 3000 watts at 1 ohm, this monoblock class D digital MOSFET powered subwoofer amplifier is perfect for pushing those subs into overdrive!

It also features variable low pass crossover and bass boost controls so that it can work with any speaker setup or sound preference. Get ready to hear every note loud and clear when you install this powerful amp into your vehicle today!

Strapping Capable – This amplifier is capable of powering subwoofers with a strapping connection.

Variable Subsonic Filter – The variable subsonic filter allows the user to select the frequency range of the low pass filter, which can be adjusted between 20 and 200 Hz. This allows the user to optimize the amplifier for their specific application.

Low Level Inputs – The low level inputs allow for easy connection of an aftermarket radio or other source unit that does not have preamp outputs. These inputs are designed to accept either left or right channel inputs from an RCA type source unit.

So they can be used even if your vehicle has only one pair of preamp outputs on its factory radio. If you have a left channel RCA plug and a right channel RCA plug, you can simply use a set of stereo patch cables to connect the amplifier to your source unit.

Variable Input Gain Control – This amplifier features a rotary knob that is used to control the input level from 150mV all the way up to 12 volts. The variable input gain control will help you to match the amplifier’s input sensitivity with your source unit.

Differential Inputs – Differential inputs are used on most high end preamplifiers. A differential input is able to receive low voltage signals that traditional RCA jacks cannot.


  • Thermal overload speaker and short protection
  • Power and protection LEDs,
  • Master / Slave Switch,
  • Phase Shift Selector
  • Input Sensitivity Selector


  • Does not come with the bass knob

Sample Customer Review:

“I got to admit when I first received it I didn’t even want to install it I thought about just returning it because it was small and did not look like it had the power , but after installing it I like the way it was pushing my two 12 inch q powers that I ordered a second one now they sound great !way better than expected!”


The APMN-1300 is a 1000 watt RMS monoblock that will fit in almost any vehicle on the market today. It has been designed specifically for cars but can also be used in trucks or vans if space is limited.

You can also adjust the low pass filter or subsonic filter depending on what kind of sound you’re looking for. It’s designed with a MOSFET circuit, and it comes with an inline fuse and bass knob for easy installation.

These monoblock amplifiers are the perfect solution for those who want a simple, compact, and powerful amplifier. They have been designed from the ground up to be as small as possible while still providing all of the features you would expect from an amplifier.

With this amp, you can finally enjoy all the power and performance you need in one convenient package.

Portable Power – The PL3000.1D is a Class D amplifier with a mini chassis, stable at 1 ohm, and can be used in many different applications.

Bass Boost – The Bass Boost feature allows you to increase the bass output of your system by simply turning a knob! This will allow you to hear more of the low frequencies that are often lost when using an amplifier.

Input Sensitivity – The input sensitivity on this amp is 0.2V – 5V which means it can be used with almost any type of source unit or head unit.

Signal-To-Noise Ratio – With a signal-to-noise ratio of 80dB, you can be sure that your music will sound as clear and crisp as possible even at high volumes.

Punch Control – The Punch knob allows you to adjust the bass output of your system for a more customizable listening experience.

Bass EQ – Using the Bass EQ on this amp can give your speakers more “slam” and make your music sound much more full.

Subwoofer Level Control – This amplifier comes with a subwoofer level control which makes it easy to match the output of your low bass notes to the rest of your system.

Fuse Protected – The fuse protects your amp in case of power overload or short circuits. This can give you peace of mind knowing that your amplifier isn’t going to be damaged by an electrical issue.


  • Designed with compactness in mind
  • High quality sound
  • Comes with a bass knob and low pass filter for better customization


  • Because of a lack of grounding, the amplifier got quite hot

Related Article: What are the causes that make a car amplifier hot?

Sample Customer Review:

“This amp is perfect for what I need it for. Works perfectly and the sound quality is really good. Not quite like pioneer or Rockford fosgate but very close for half the price.”


The Hifonics ZRX2416.1D Zeus Mono Class-D Subwoofer Amplifier is the perfect device for anyone who wants to do more with their sound system. It’s packed with features that make everyday life easier, more entertaining, and more productive.

It’s not just an amazing product but also an incredible experience you can have every day of your life.

With 2400 watts of power, this beast will be sure to shake your car apart! This amp has a signal-to-noise ratio greater than 95 dB so you know that every note will come through loud and clear without any distortion or interference from outside noise sources such as wind or road noise from driving down the street in your car.

There are low level RCA inputs and outputs which allow you to hook up other devices such as subwoofers, amplifiers, speakers, etc., allowing you to expand your audio system even further if desired!

Old School Heat Sink– The ZRX2416.1D’s heat sink is a throwback to the old school days of Hifonics amplifiers when they were known for their superior heat dissipation and durability.

Military Grade Pcb – The Zeus amplifier features a military grade PCB that is designed to withstand the toughest conditions. This board will not crack or break under normal operating temperatures, unlike other brands’ boards which often fail prematurely due to inferior materials and manufacturing techniques.

PWM Mosfet Power Supply– The ZRX2416.1D uses PWM MOSFET power supply technology for maximum current levels, ensuring you always have enough power on demand for the most demanding subwoofer setups.

Remote Level Control – The Zeus amp features a wired remote control so you can adjust your sub’s volume from anywhere in the car! It comes with 25′ of cable which is more than enough to reach any location in even the largest vehicles, and it conveniently stores in an easy-access slot on the amp for quick and easy adjustments.

Total Harmonic Distortion <0.1% – The Zeus amp delivers clean, undistorted sound thanks to its high-efficiency topology which minimizes distortion from heat build up, as well as its superior power supply design which ensures there is always enough power available for demanding subwoofer setups.

Simpatico Coil Design – The ZRX2416.1D is built with rugged, heavy duty MOSFETs which allow it to handle power surges and high current demands, as well as the unique coil design that ensures quiet operation even at high volumes without compromising sound production.

Diagnostic Indicators – The ZRX2416.1D provides an array of diagnostic indicators that inform you of any issues, including power and protection LEDs as well as a thermally-protected LED that illuminates red if the amplifier overheats, and green when it returns to normal operating temperatures.

Dc Short Circuit Protection – This amplifier’s advanced circuitry protects the amplifier from any dangerous DC shorts, meaning you don’t have to worry about frying your amp when you hook it up incorrectly!

Thermal And Overload Protection – The Zeus amp comes with thermal and overload protection circuits which protect the amplifier from damage due to high temperatures or demand for higher power levels than what the amp can handle.


  • The amplifier is stable down to 1 ohm
  • A very high quality product, easy to install and use.
  • Great performance at a great price


  • A little heavy
  • No Bluetooth connectivity

Sample Customer Review:

“I am very impressed with this Amplifier. I have it running two Alpine type S-W12D4 12” Dual 4-Ohm with possible of 2-Ohm Subwoofers and could not be happier. Looking around for an amp for my car I looked at Kenwood, Pioneer, Pyle, and Alpine.

None of them fit my budget for what I was wanting or did not provide the power I was wanting. This amp came up in my searching fit my budget and had the power I was looking for. I Highly recommend getting this amp you will not be disappointed."


The MRV-M500 is a high performance car amplifier that delivers 500 watts of power to your speakers. It’s the perfect solution for anyone who wants to upgrade their sound system without breaking the bank.

This amp has all the features you need, including variable bass boost and soft start turn on technology. Plus it comes with 3-way protection circuitry so you can rest easy knowing your equipment is safe from damage caused by thermal overloads or short circuits in your speaker wire.

With this amp, you’ll be able to crank up your tunes and enjoy every note as they fill out the entire interior of your vehicle. And since it’s CEA compliant, you know exactly what kind of output power this baby packs!


V Power Series – The Alpine V Power amplifier series is a range of high quality car amplifiers that deliver excellent sound quality and performance at an affordable price point.

S.T.A.R. – Short Circuit Current Protection System – This circuit protects the amp from shorted output devices such as a failing subwoofer or blown speaker by automatically shutting down the amp when there is too much current draw on one side of the output device (typically caused by a short).

LED Power Indicator – Let you know when the amp is powered on. The LED will glow blue when the amp is powered on.

Preamp RCA Outputs – This allows you to connect multiple amplifiers together without running an extra set of RCA cables for each amp. You can use the pre-amp outputs (one positive and one negative) to send a filtered signal from your MRV-M500 to another amp(s) and then connect your second amp’s inputs to the speaker outputs of the first amplifier.

Variable Low Pass Filter – This allows you to change the frequency point at which bass frequencies are filtered out and not sent to your speakers. You can select 50Hz – 400Hz.

Heavy Duty Aluminum Alloy Heat-Sink – This aluminum alloy heat sink draws heat away from the components and transfers it to the heat sink fins, which allows for efficient cooling.

Input Sensitivity – This lets you adjust how hard the amp is driven, which has an effect on sound quality and distortion. The higher the sensitivity setting, the less power is needed to achieve a certain volume level. The Sensitivity is adjustable from 0.4V – 10V.

Non-Fading Preamp Output – This preamp output keeps a constant voltage signal between the input and the output, even when the volume is at zero.

Variable Low Pass Filter – Allows you to change the frequency point of bass frequencies being filtered out from your audio and not sent to the speakers. You can select 50Hz – 400Hz.

3-Way Protection – Protection circuit that turns off the amplifier if it detects a short circuit, an impedance mismatch (when a speaker’s resistance is less than 1 ohm), or over temperature condition as a result of incorrect wiring or installation.


  • Excellent sound quality and power output for the price
  • The quality of construction (heat sink, etc.) is good for the price
  • Can get loud enough to compete with most factory installed systems if you have a clean signal from your head unit


  • Not yet

Sample Customer Review:

“I know everyone is different but I put this amp powering one Alpine S-type 10 in a ported box in my car and it puts out more bass than I can handle. The amount of bass for the money this amp cost is great. Very happy with it.”


The Tramap’s HD 3000 1 Ohm Class D Full Range Mono Amplifier is the perfect device to power your car’s audio system. It has all the features you need, like bass boost and high-pass/low-pass crossovers. Plus, it comes with a remote subwoofer level control so you can adjust the sound from anywhere in your vehicle!

You will find a few amplifiers on the market today that offers this much power at such an affordable price. This amp will make sure that every note of music sounds clear and crisp no matter how loud you play it or where you are sitting in your car. And with its compact size, it fits perfectly into any vehicle without taking up too much space!

Input Sensitivity – The HD 3000 amplifier’s input sensitivity is 230mV. This allows you to connect your source device directly to the amp with no need for an additional preamp or receiver.

Signal To Noise Ratio – A signal to noise ratio of 89dB ensures that you’ll hear every detail in your music, movies, and games without distortion or interference from outside sources.

Frequency Response – With a frequency response of 10Hz to 20kHz, the HD 3000 amplifier provides clear sound quality across all frequencies for a full range listening experience.


  • Powerful amplifier
  • Short / Short Supply Protection System / High / Low Supply Voltage
  • Maximum Supply Voltage
  • Consumption at rest


  • You may need a 2nd battery that will provide full benefits of the amplifiers

Sample Customer Review:

“I’ve had this amp for 5 months now and it is powerful! I’ve abused it with gains up all the way and it handled the abuse very well. I’m running 2 skar 15” SVR wired to 1ohm. I haven’t had any problems with the amp so far. Well worth the money."


The Skar Audio RP-1500.1D Monoblock Class D car amplifier is the perfect choice for anyone who wants to upgrade their sound system in their vehicle. It’s packed with features that make it easy to use and install, so you can get great sounding bass quickly and easily.

This amp has a MOSFET power supply that provides high current flow into your subwoofers, which means more powerful bass than ever before! It’s not just an amazing product but also an incredible experience you can have every day of your life.

With this monoblock amp, you get 4-way protection circuitry so there are no worries about damaging your equipment or causing damage to yourself when installing this amp in your vehicle.

There are also 4 gauge power and ground input terminals for maximum current flow from the battery to the amplifiers inside of this unit, ensuring that they work at optimal capacity all of the time!

Remote Subwoofer Level Control – Allows you to adjust the bass output of your subwoofers from the front of the vehicle for convenience. This allows you to make adjustments without having to walk back to your trunk or undercarriage.

Peak Power at 1 Ohm – The maximum amount of power an amplifier can produce at its lowest impedance rating (the point where it draws maximum current). At 1 ohm, this amp can produce 1500 watts at a maximum!

4 Gauge Power And Ground Input Terminals – Reliably delivers current from the battery to the amps inside. You can install thicker, higher gauge wire which means more power is transferred to your amplifiers and a cleaner installation.

4-Way Protection Circuitry – Keep your equipment safe while optimizing sound quality.

1. Thermal Overload Protection – Keeps the amp from overheating, shutting it down automatically before you cause permanent damage to the amplifier or your vehicle’s electrical system.

2. DC Short Circuit Protection – Prevents current flow in the case of a direct short, allowing amps to work within their optimal power range, without direct shorting.

3. Speaker Short Protection – Prevents the speaker wire from causing a short circuit to your vehicle’s electrical system by any means, preventing damage done to your car and your amplifier from excess current draw.

4. Voltage Protection – Your car’s electrical system is safe from harm with this protection circuitry keeping overvoltage at bay.

Balanced Inputs – Reduces interference by eliminating electrical noise that originates in any part of the vehicle’s electrical system. Allows your amp to respond faster with cleaner sound quality, resulting in a better overall listening experience.


  • No, overheat issue except wrong wiring
  • Outputs clean deep bass
  • Easy to install and works fantastic


  • The layout for power/ground are too close to each other
  • Bass knobs are not of good quality

Sample Customer Review:

“I’ve been testing this amp for about 1 month hiting it hard with all my low end bass songs like trap, drum n bass, trip hop, old school bass music and it has never quit on me yet and when i mean never quit i mean taking a 3hr trip just banging all the way song after song. For the price im impressed and i got the white marine amp as its the same as the black just because my SUV is white. I have those on a Jl 13.7 v2 ported box tuned to 34hz.”


The TR5000.1D Class D Car Amplifier is the perfect choice for anyone who wants to upgrade their sound system with an amplifier that can power up subwoofers and deliver high-quality audio.

This monoblock amp delivers 5000 watts of clean, clear power at 1 ohm so it’s great for powering your subwoofer or multiple speakers. It also features variable low pass crossover, tone of voice feature to benefit, and variable subsonic filter so you can adjust your bass levels depending on what type of music you’re listening to.

With its sleek design and powerful performance capabilities, this monoblock amp will give your sound system a serious boost in quality without breaking the bank! Plus, this amp comes with a 6-year platinum warranty from Planet Audio so you know it will last!

Strapping Capable – The TR5000.1D is capable of producing up to 5,000 watts at 2 ohms and 1,500 watts at 4 ohms. It will handle a 2 ohm load with ease and it can be bridged to run in mono mode at 4 ohms or 8 ohms. This amp has the power you need!

Low Level Inputs – The Planet Audio TR5000.1D comes equipped with RCA preamp outputs so you can add an aftermarket source unit such as an iPod® or satellite radio tuner without having to add any external converters or signal processors. Just connect your device to the amp’s RCA inputs and link it to your receiver or processor using a set of preamp cables.

Variable Low Pass Crossover – Enjoy the flexibility of being able to adjust your subwoofer output for any type of music you listen to when you use the variable low pass crossover feature on this amplifier! You can select frequencies between 50 Hz to 200 Hz so you’ll be able to hear all of the bass your subwoofer has to offer no matter what kind of music you listen to.

Variable Subsonic Filter – Bass enthusiasts will love being able to adjust their bass levels with the variable subsonic filter on this amp! You can select frequency cutoff points at 10 Hz increments from 30 Hz to 60 Hz.

Chrome-Plated Connections – This amp features high quality, durable RCA and set screw terminals that are chrome plated for an attractive look and extra protection from corrosion.


  • It is a Digital amplifier
  • The amp offers Mosfet Power Supply
  • It comes with a Bass Boost option, Switchable Phase Control, and Remote Subwoofer Control,
  • Illuminated Blue Planet Audio Logo, Power, and Protection LEDs


  • For full performance, your power supply needs to b very strong due to high power amplifier

Sample Customer Review:

“Bought this Amp for my dual 12” Kicker Solobaric L7’s in 2020. Two years later the amp still pushes the subs as hard as day 1. Drove 1,600 miles only stopping for gas with the stereo blaring for 90% of the trip and the amp never let up nor did it even feel warmer than the inside of the vehicle.

I have never turned both bass knobs to 100% at the same time, but the amp is at approx 90% up and has never failed. Absolutely love it and couldn’t be more happy/impressed."


Alpine S-A60M Class D Mono Amplifier is a great way to get the most out of your music. It’s an incredibly powerful amplifier that can be used for both home and automotive use.

With preamp and speaker-level inputs, this amp is easy to install into any vehicle. You can even adjust bass boost levels with ease! This unit comes with a dyno test so you know it works perfectly before installing it in your car.

The internal crossovers make sure all frequencies are heard clearly without distortion or muddiness. And best of all, once installed, this amplifier will give you years of enjoyment as it pumps out crystal clear sound at high volumes!

Protection Circuit Design – The Alpine S-A60M is a perfect choice for powering all your speakers. It has a 600W RMS power output and can deliver up to 1200W peak power.

Improved Heatsink – The Alpine S-A60M features an improved heatsink design that allows you to use it in tight spaces, such as under the seat of your car or behind a cabinet.

Compact Design – This amplifier measures only 7" x 2" x 7", so it will fit almost anywhere! Its compact size makes it easy to install and mount in your vehicle.

600W RMS @ 2 OHMS – The Alpine S-A60M can produce up to 600 watts RMS at a 2 ohm impedance. It’s perfect for powering all your speakers and subwoofers without distortion or clipping

Clear, Crisp Sound – This amplifier has an internal crossover that splits the signal into bass and treble frequencies so you can hear crisp sounds coming from each speaker.


  • No issues with overheating yet
  • Easy to set up
  • Compact amplifier
  • Attractive design
  • Affordable Price


  • It doesn’t have a smart turn on but perfect value for the money

Sample Customer Review:

“Replaced an aging Sony XPlod 600W 4 channel amp that I was using to power one DVC 10” with this Alpine, and what can I say? This thing straight pounds. Clean power, runs cool, and it even looks killer.

My fact sheet says it was tested to 851W @ 2 ohms, but I’m running 4 ohms currently. This amp cleaned up my entire sound stage and goes perfectly with the Alpine MRV F300 which drives my mids and highs, Alpine R series 6 1/2 components and 6 X 9’s."


Kicker 46CXA8001 1600w Car Audio Class D mono amplifier is the perfect combination of big power, variable 12dB crossover, variable bass boost,24dB subsonic filter. It has a lot of features that will benefit you in many ways. This amp is not only powerful but also flexible and reliable. You can have it for yourself today!

The best thing about this amp is that it comes with all these amazing features at an affordable price which makes it even more desirable to own one for yourself right now! If you are looking for something like this then don’t look any further because we have what you need here on our website!

One Ohm Stable – The kicker monoblock amp is a great choice for powering your subwoofers, and it’s stable down to one ohm.

Vertical And Horizontal Mounting Hardware – This amp comes with both vertical and horizontal mounting hardware, so you can choose the look that works best in your vehicle.

Line Out Converter – You’ll get a line out converter with this amp, so you can easily connect it to an aftermarket stereo or other device.

Bass Boost Control – You’ll be able to adjust the bass boost with this car amplifier, and you can turn it up to get a little bump in your music.


  • KICKER’s FIT+ (Fail-safe Integration Technology-PLUS)
  • Even with excellent factory audio systems, Outstanding noise rejection ensures that you can hear everything clearly
  • Compact and solid design
  • Simple to wire up
  • The sound quality is superb


  • This doesn’t have a bass knob

Sample Customer Review:

“Its brand new, but it didn’t come in a delivery box, it just came in itself own box, they just slapped delivery info on it with a little piece of tape. Other then that it came safe and brand new.”


Sundown Audio’s SFB-3000D is a Class D amplifier with all the power and performance you will ever need. The amp features a variable crossover that allows you to control your bass frequencies from 15Hz all the way up to 80Hz. This allows you to get the most out of your subwoofer without sacrificing mid-range or high-end sound quality.

The amp also features thermal management, which allows it to run cool even when pushed hard for long periods of time. It also comes equipped with a Smart Cooler, which senses when the amp is getting too hot and increases fan speeds to cool it down.

This is a big deal for people that like to push their amps, but don’t want to add more noise or upgrade their cooling system in order to add more power. The amplifier has an input impedance of 56K-Ohms and can be used with a wide range of input sources, from full-range factory units to aftermarket head units.

Features:Sundown Audio SFB-3000D 3000W RMS Class D Amplifier

Variable Pass Filter– The variable pass filter allows you to adjust the frequency of your subwoofer. This is a great feature for those who want to customize their sound or have multiple subs in different locations.

Bass Boost – A bass boost will increase the low frequencies, giving you more bass and volume! Turn up the bass without sacrificing clarity!

Protection System – Protects your amp from overheating, overcurrent, and short circuits. It also protects against DC offset voltage that can damage speakers. With this protection system, you’ll never worry about damaging your equipment again!

Minimum Maximum Supply Voltage – This amplifier has a minimum & maximum supply voltage of 9V DC and 16V DC. This means you can use it with a wide variety of different voltages!

Smart Cooler – If your amplifier is getting too hot, the Smart Cooler will activate to bring the amp back to an ideal temperature. This increases fan speed to cool down your equipment quickly!


  • This speaker doesn’t get hot
  • Sound quality is awesome
  • Lots of power and very compact


  • Expensive but worth the money

Sample Customer Review:

“Best performing amp I’ve ever had. Sound quality is awesome, as far as “value for money” I always say you get what you pay for. I paid good money, received a quality product. Thinking of buying another.”

Don’t worry if you have a small/mini car, we have also reviewed the 10 best mini car amplifiers for your mini dream. And if you are searching for the best competition car amplifier then we also covered it in our previous article.


Amplifiers can be complex, but we will cover the basics in this section so you can start learning. Before we get into the details, let’s define what a monoblock is. We will explain the major concepts you need to know to get started. However, a more detailed guide will follow later in the article.


Audio equipment is described and measured using numbers. Below are the important numbers you should know to understand audio components.

Understanding Ohms and RMS in Audio

Understanding ohms and RMS can be complicated, but it’s important for choosing the right amplifier. RMS power at a specific ohm rating measures the actual amount of power an amp can produce.

Lower ohms mean more power for the speaker, but can sacrifice quality for volume. Higher resistance in ohms leads to clearer sound, but less volume. Subwoofers are usually built for volume, so it’s common to see 1-ohm and 2-ohm subwoofers.

Amplifier Power Output

Watts measure the power output of an amplifier, which determines how loud it can get. Usually, the higher the wattage, the louder it can go. However, it’s important to note that higher wattage doesn’t necessarily mean better sound quality as it may lead to more distortion.

Choosing an Amplifier that Fits the Subwoofer

Subwoofers have two important ratings: the watt range and ohm rating. It’s important to match the amplifier’s RMS rating with the subwoofer’s watt range at the specified resistance.

If you’re unsure, it’s better to get a larger amp. You can always turn down the amp for a smaller subwoofer, but trying to power a sub that’s too big can damage the amp.


Subwoofers are rated based on two things: the watt range and ohm rating. It’s important to choose an amplifier that matches the subwoofer’s watt range and resistance.

If you’re not sure which amplifier to choose, it’s better to go for a larger one. You can always turn down the volume for a smaller subwoofer, but if you try to power a sub that’s too big, you can damage the amp.


Amplifiers are categorized into different classes such as A, B, A/B, and D. The main difference between these classes is how efficient they are in converting Alternating Current (AC) to Direct Current (DC).

Efficiency measures how much AC an amplifier can supply while using the least amount of DC. Let’s take a quick look at how efficiency varies between the different classes:


Class A amplifiers conduct electricity continuously, which leads to a lot of energy wastage. Only a small amount of current produced will be used by speakers or any other connected device, and the rest will be converted into heat. This can cause Class A amplifiers to overheat if used for long periods.

Class A amplifiers are known for producing the purest signal among amplifier classes.


Class B circuits are more efficient than Class A as they conduct electricity only 50% of the time, which saves energy. However, this efficiency comes at the cost of slightly distorted signals produced by the amplifier.


Class A/B circuits combine the benefits of both Class A and Class B amplifiers. They have biasing diodes in the Class B chain that prevent distortion from the signal path, resulting in both signal purity and power efficiency.


Class D amplifiers are highly efficient with an efficiency level of 90% to 95%. The main reason for this high efficiency is that when they are turned off, they completely switch off. This implies that the output transistors do not store any electricity, resulting in no excess energy that can be converted to heat.


Efficiency is the ratio of the useful output to the total input of a system. In simple terms, it measures how well a system converts input energy into output energy. The efficiency of a system can be affected by various factors such as friction, heat loss, and resistance.

For example, an amplifier with high efficiency will produce more power output for the same amount of input power compared to an amplifier with lower efficiency.


Efficiency is an important factor to consider when designing and using systems. High efficiency means less waste of resources and lower operating costs, which can lead to economic and environmental benefits. In some cases, high efficiency can also lead to improved performance and reliability of systems.

For example, a car with a more efficient engine can travel further on the same amount of fuel, reducing the need for refueling and saving money for the driver.

The recommended efficiency for different applications can vary depending on the specific requirements of the system. In general, higher efficiency is preferred for systems that require high power output or operate for extended periods of time.

For example, power generation plants may aim for efficiency levels of 40-60% to maximize the amount of electricity produced from the fuel used. In contrast, portable electronic devices may prioritize energy efficiency to extend battery life and reduce the need for frequent charging.

The recommended efficiency levels for specific applications can also be influenced by regulatory standards and environmental considerations.


A. Durability and reliability refer to the ability of a product to withstand wear and tear, as well as to function properly over an extended period of time.

Durability is the measure of how long the product will last before it breaks down or requires repair, while reliability refers to how consistently the product performs its intended function without failure.

B. Durability and reliability are crucial factors to consider when purchasing any product, especially in the case of electronic equipment such as amplifiers.

Amplifiers that are durable and reliable can provide excellent performance over a long period of time, while those that are not can cause frustration and require costly repairs or replacements.

C. The recommended durability and reliability for different applications will vary depending on the intended use and environment of the amplifier.

For example, an amplifier used for professional live sound events will need to be more durable and reliable than one used for home listening.

Additionally, an amplifier used in outdoor settings will need to be more rugged and able to withstand harsh weather conditions than one used indoors.

It is important to consider the specific needs and demands of your intended use when selecting an amplifier with the appropriate level of durability and reliability.


Best Class D Monoblock Amp" and its input and output options:


Input and output options refer to the methods and devices used for transferring information into and out of a computer system. In the case of a Class D monoblock amplifier, input options are the ways in which audio signals are fed into the amplifier, while output options refer to the ways in which the amplifier delivers sound to the speakers.


Having multiple input and output options is important for providing users with flexibility in how they interact with the amplifier. For example, some Class D monoblock amps may have both RCA and speaker level inputs, allowing users to connect to a wider range of audio sources.

Additionally, having the ability to adjust the gain, frequency response, and crossover settings can provide users with greater control over their audio output.

For car audio setups, Class D monoblock amplifiers with RCA inputs and high-level speaker inputs are recommended. These options allow users to connect to a wide range of audio sources, including head units, smartphones, and other mobile devices.

Additionally, adjustable gain and crossover settings can help users fine-tune their audio output to match the specific acoustics of their car’s interior. Overall, having a Class D monoblock amp with a range of input and output options can help users achieve the best possible sound quality for their car audio system.


A Class D monoblock is very easy to wire. There are only 2 wires coming from the amp itself One red “positive” (+) cable, and one black “negative” (-) cable. You need to connect these two cables to your battery’s “+” and “-” connections. Make sure there is NO connection between the positive and negative wire coming from the amp.

If there’s a “ground” wire for the amp, connect that to a metal part of your car chassis. That’s it!
Since a monoblock has only 2 wires, you need an extra power cable to provide power from your car’s fuse box to the amplifier. This is called a “remote turn-on” power cable.

Because we limit the number of wires in a car audio installation, there is less to go wrong and it will be easier for you when doing your own installation.

So if you want an easy wiring job, choose a monoblock amp! With one pair of cables to connect and no ground wire needed, it’s definitely the simplest of all amp wiring jobs.

If you want to make things even easier, you can install one amplifier wiring kit. Everything needed is included in the kit for that particular amp.


Q:1 Can you put two subs on a mono amp?

Let’s start with the basics. When it comes to mono amplifiers, they are designed to power only one speaker. A mono amplifier produces one electrical signal representing the sound of both bass frequencies (low) and midrange frequencies (middle).

Mono amps deliver more power than a stereo amp because all of their energy is focused on driving that single speaker.

Due to the high power produced by a mono amp, if you were to use another speaker as a load (the electrical term for what your sub is plugged into), it could blow.

The wattage of a mono amp is very different from a stereo amplifier and because of this, they are not compatible with each other.

Q:2 Can a monoblock amp run speakers?

Since a monoblock amp is not designed to send separate signals and isn’t compatible with multiple speakers, it can’t power speakers.

Some mono amplifiers have outputs for speaker wires so you could hook them up to external speakers but it’s best to use only the speaker(s) that came with your amplifier.

It’s also important to check that your speakers are compatible with the amplifier you’re using. Some speakers require more power than others, so if you have low powered speakers, it’s unlikely they will be able to handle an expensive mono amp.

If you want to run external speaker wires from your subwoofer to an exterior speaker for added sound, make sure the wire you use is thick enough to handle the power coming through it.

Q:3 Monoblock Amp Vs. 2 Channel Amp?

Since monoblock amps are designed for high powered subwoofers, it’s safe to assume that they will produce more power than a 2 channel amp. While 2 channel amps can produce a clean sound.

They don’t have the capacity to handle the bottom end frequencies needed by subwoofers. Monoblock amps are recommended if you’re looking for more power/better bass with less distortion.

Q:4 Are Class D amps good for subs?

Class D amps are also referred to as “switching” amps. These types of amps switch the signal they receive from your car’s alternator and pass it through a transistor, allowing for more power than conventional amps.

This type of amp is recommended if you’re looking for high quality bass at an affordable price.

Q:5 Do Class D amplifiers use less power?

Class D amps are more power efficient than conventional amps. This is one of the reasons why they are recommended for car audio use.

They are designed to turn on and off at very fast speeds so they don’t have to work as hard as a conventional amp which draws more power when it’s turned on.

Q:6 Why are Class D amplifiers more efficient?

Class D amps use MOSFET transistors to amplify the signal. When the transistor is on, it’s passing an electrical current through which produces heat energy.

The time in between switching from off to on is called “dwell” time and is when the amp saves energy.

Q:7 Do Class D amplifiers get hot?

Class D amps do produce a little bit of heat on very high watts, but it’s usually not as much as a conventional amp would. This makes them ideal for car audio.

Q:8 What is MOSFET?

MOSFET stands for metal-oxide-semiconductor field-effect transistor and is a type of transistor used in amplifiers to produce sound.

Q:9 How many ohms is a Class D amplifier?

A Class D amp can handle 2, 4, 6, or 8 ohms.

Q:10 Is a Class D amplifier good for bass?

Yes! The latest Class D amps are ideal for bass because they produce more power than conventional amps. Also, Class D amps can be designed to produce clean sound without any distortion.


In conclusion, a Class D monoblock amplifier is a powerful and efficient device that can provide high-quality sound to car audio systems. When selecting the best Class D monoblock amp, it is important to consider factors such as power output, efficiency, input and output options, and overall sound quality.

We recommend the MRV-M500 as it is a quality amp at an affordable price. By selecting an amplifier with the right features and capabilities, users can achieve the best possible sound quality for their car audio setup.

With the flexibility and control provided by a Class D monoblock amp, users can enjoy a superior audio experience while on the road.

We hope you will be well aware about best class D monoblock amp, after reading this comprehensive guide. If you have any questions, feel free to comment below!