10 Best 4-Channel Car Amplifiers for Mids and Highs

Car audio systems have come a long way since the days of tinny speakers and a radio. Today, you can enjoy quality sound, enhanced with your favorite music, even in the car. While many car audio components are sold separately, it is still important to choose the best amplifier to match your needs.

Car amplifiers are capable of turning your average vehicle into a concert system. Modern technology allows you to pick out even the tiniest sounds in recordings – so if you’re looking for quality audio, it’s important to buy high-end speakers and sound systems.

A 4-channel car amplifier is a great way to improve the sound quality in your vehicle. This type of amplifier allows you to power four speakers or subwoofers with one unit, which can provide a more powerful and immersive listening experience. If you’re looking for a way to take your music listening experience to the next level, a 4-channel car amplifier is a great option.

We have picked the best 4-channel amplifiers for car audio. These models come with high-quality sound systems and offer plenty of features that will make your journey more enjoyable.

Our Top Picks for the Best 4 Channel Car Amplifiers:

  1. Rockford Fosgate PBR300X4 Punch
  2. Planet Audio AC1200.4
  3. Pioneer GM-A6704
  4. Alpine MRV-F300
  5. Skar Audio RP-150.4AB
  6. Taramps TS400X4
  7. MTX Audio THUNDER75.4 Thunder Series
  8. Kenwood KAC-M3004
  9. JBL GX-A604
  10. BOSS Audio Systems PF1800

Best 4 Channel Car Amplifiers Reviews

1. Rockford Fosgate PBR300X4 Punch

The Rockford Fosgate PBR300X4 Punch is the perfect choice if you’re looking for a compact and powerful stereo amplifier to add to your vehicle. It’s an ideal choice for music lovers who want a great sound system without the bulk.

The PBR300X4 also features an all-transistor power supply, which is compact and efficient. This amp can deliver 75 watts of continuous power at 4-ohms. It has a total of four channels with a separate gain stage for each channel. It’s not just about power; Rockford has made this amp with high-level inputs and a high-quality MOSFET output stage. The high-level inputs offer protection from overloading and excessive input voltages.

The variable 4-6 volt hi level DC offset input turn-on control lets you set the amp’s output voltage, which is really useful when you want to drive an active speaker system. This also reduces the chance of damage from overdriving the speaker or amplifier.

And the 12dB/octave Butterworth crossover lets you adjust the crossover frequency for each channel individually, so you can get the best balance between bass and mids/treble frequencies. This gives you full control of your sound and makes it easier to get the sound you want.

Rockford has made this amp with high-level inputs and a high-quality MOSFET output stage. The high-level inputs offer protection from overloading and excessive input voltages.

The PBR300X4 is our top pick for the best 4-channel car amp in its class for the money. It’s got everything you need and offers incredible power, frequency response, and ease of use. This amp will make your music sound better than ever before.

2. Planet Audio AC1200.4 4 Channel Car Amplifier

Planet Audio AC1200.4 offers excellent sound quality and it’s easy to use and maintain. This unit also features a high power rating, making it perfect for any vehicle, including trucks, vans, cars, and even SUVs.

The AC1200.4 is a full-range, four-channel amplifier that features two sets of inputs – one for the front and rear speakers, and another set for the subwoofer. It also has a variable bass boost function, which means you can boost the bass response without sacrificing the rest of the sound quality.

This amplifier offers a high pass crossover (a feature found in most car amplifiers), which allows you to eliminate the low frequency components from the signal so you don’t get that annoying bass drone. And the variable low pass crossover allows you to control the amount of bass you want to hear.

The Planet Audio AC1200.4 has been designed with an aluminium chassis and a metal faceplate, making it durable and resistant to any road noise or vibration. It’s also equipped with four outputs, allowing you to connect it to multiple speakers.

The output is rated at 1200 watts, and this makes it one of the most powerful amplifiers on the market today. The AC1200.4 features a full range of frequencies, so you can enjoy music without distortion from 20Hz to 20kHz, which is extremely rare for amplifiers of this size. And thanks to its Mosfet power supply, it also ensures your music has smooth power without any glitches

You can choose to run it as a standalone amplifier, or connect it to your car’s factory audio system, so you don’t have to worry about any compatibility issues. This is one of the best 4 channel car amp for sound quality that won’t disappoint you. If you need a powerful, versatile, and reliable amplifier for your vehicle, then this is the best choice for you.

3. Pioneer GM-A6704 4-Channel Bridgeable Amplifier

The GM-A6704 is a 4-channel bridgeable amplifier that is designed to provide an optimal audio listening experience. It has 4 channels, with 2 channels being mono, and 2 being stereo. So you can play your music in stereo or use it as a mono amplifier to drive a speaker system.

This amplifier has 1000 watts of power, which means it can handle any speaker system you connect to it. It has an automatic signal sensing feature so you don’t have to worry about it turning on or off randomly. You can also adjust the bass and treble levels with an adjustable high pass filter.

In addition, it is equipped with an adjustable bass boost that helps improve the bass response.

4. Alpine MRV-F300 4-Channel Car Amplifier

The MRV-F300 is an ultra compact amplifier that packs in 75 watts of power into a 4-channel design. This makes it suitable for most mobile applications, including running your car’s speakers from your iPhone or Android device. It also has a new digital platform that provides high-quality sound and an evolution to class D digital amplifier technology.

The MRV-F300 is available in a 40% smaller chassis with four channels and a 75 watt power rating. With its small size and lightweight design, you can easily take it with you and easily install it into your vehicle. You can even add multiple units together for the ultimate speaker system.

It features new snap-on terminal covers for easy installation and the new digital platform provides high-quality sound and an evolution to class D digital amplifier technology.

5. Skar Audio RP-150.4AB Full-Range Class A/B 4 Channel Car Amplifier

The Skar Audio RP-150.4AB is an innovative product that offers a full range of power amplification for your car audio needs. It comes with four channels of power output that can be adjusted with the user-friendly controls.

Each channel features a 250-watt MOSFET amplifier that offers a high level of efficiency and the ability to deliver clean power at low and high volumes. Each channel also has a built-in variable low pass filter and a separate high-pass filter that offers a smooth response and a boost in bass.

The adjustable gain control helps you to get the best sound quality for the money, while the bass EQ switch lets you adjust the response curve for a more powerful punch.

6. Taramps TS400X4 4 Channels Car Audio Amplifier

Taramps TS400X4 is a best 4 channel car amplifier which can be connected to your vehicle’s 12V battery to power up your music system. It features 4 channels, maximum power of 400W RMS, 400W bridged, 100W for each channel as well. The minimum supply voltage is 8V.

It has a very high signal to noise ratio of 90dB. It’s frequency response range is 18Hz to 30kHz with -1dB.

The TS400X4 has a built-in thermal protection circuit which will shut down if the temperature rises too much. This also includes a short output which will turn off the amplifier if it gets overheated or over charged.

Taramps TS400X4 is a very powerful amplifier with great features, so you can enjoy your music without the hassle of having to constantly connect and disconnect the amplifier from your vehicle’s battery.

7. MTX Audio THUNDER75.4 Thunder Series Car Amplifier

It offers a 400W RMS output with a variable high-pass filter and has a frequency response of 10-25,000 Hz. This makes it a great choice for those looking for an affordable, yet powerful amp for their car.

MTX Audio THUNDER75.4 also comes with a unique feature; a surface mount PCB design that makes it small enough to fit in the smallest of spaces. This means you’ll be able to install it anywhere in your vehicle without taking up too much space or causing interference with other components.

There are four channels, each with a variable LPF and HPF. You can adjust the cutoff frequencies between 10Hz and 200Hz, giving you the best sound quality and bass extension. There’s also a built-in high-pass filter on each channel, which is great for those who want to keep bass from overpowering the rest of the music.

The lightweight body and compact design of the ThUNDER75.4 make it perfect for most vehicles. It’s easy to mount on your car.

Related: Best Car Amp Mounting Ideas

8. Kenwood KAC-M3004 Compact 4 Channel Digital Amplifier

The Kenwood KAC-M3004 compact four channel car amplifier is a great upgrade for any audio enthusiast. It features a 50W RMS output per channel, plus a 600W peak power rating. This means it can handle high levels of audio while still being portable enough to use in your car.

It also features a 50W RMS signal sensing turn-on feature, which allows you to plug in and listen without worrying about damaging the amp. This is an important feature for anyone who drives around with their music on, as it won’t cause any damage if you forget to turn it off.

The KAC-M3004 also features a conformal coating on the circuit board to protect it from bumps and scratches, which makes it easy to install in any vehicle. Plus, it has a 5-year warranty that covers any damage caused by a user.

All in all, this is a great amplifier that’s built to last. It’ll fit comfortably into any car and won’t leave you disappointed. It’s a great addition to your vehicle audio system.

9. JBL GX-A604 4-Channel Full Range Amplifier

The JBL GX-A604 is a full range amplifier that lets you enjoy your favorite music at a high quality level. This is a high performance amplifier with a built-in digital crossover network, high-level and low-level inputs, a switchable bass boost, and a powerful 60W RMS per channel.

It has a built-in power supply, which makes this a perfect solution for any kind of sound system – from home to car. And because it’s a full-range amplifier, it’s ideal for people who are looking to upgrade their sound system without spending a fortune. It’s also a good choice for those who are on a budget as well.

This model features a built-in digital crossover network with 5 channels. It gives you the flexibility to choose your preferred channels and enjoy your favorite music at a high quality level. The included high-level and low-level inputs let you connect your amplifier to your home or car audio systems.

This amplifier also has a switchable bass boost, which lets you adjust the bass level depending on the song you’re listening to. This lets you enjoy music with the bass levels that you prefer.

The JBL GX-A604 is a great value for money because it offers a lot of features for a price that’s a fraction of what you would expect to pay for a similar product.

10. BOSS Audio Systems PF1800 4 Channel Car Amplifier

The BOSS Audio Systems PF1800 is a great choice for those looking for an affordable, reliable, and powerful 4 channel car amplifier. This amplifier is capable of putting out 1800 watts of power, making it perfect for powering a full car audio system. It features a low-pass crossover, so you can fine-tune the sound to your liking, and it comes with a remote control so you can easily adjust the settings from anywhere in your vehicle.

This car amplifier is designed to provide power to four separate car speakers. It uses a class A/B topology, which means that it delivers power to the speakers in two stages. This helps to ensure that the amplifier can handle large amounts of power without overheating. The amplifier also has thermal and short circuit protection, which helps to keep it safe in case of a problem.

This car amplifier is designed to power four speakers, and it features a mosfet power supply for reliable performance. The amplifier has a variable gain control so you can adjust the signal strength, and it also includes a low pass filter to keep the audio signal clear.

This amplifier is bridgeable, meaning that it can be configured to output more power by combining the channels into one. This is a great feature for systems that need more power, like those with multiple subwoofers.

What Are 4 Channel Amps Used for?

A four channel amp can be used in a variety of ways. It can be used to power a set of speakers, to power a subwoofer, or to power a combination of both. A four channel amp is typically more powerful than a two channel amp, allowing it to handle more power and produce louder sound. When using a four channel amp to power speakers, it is important to match the impedance of the speakers with the output rating of the amp.

How to Choose the Best 4 Channel Car Amp for Mids and Highs?

There are many things to consider when choosing a 4 channel car amplifier before purchasing. 4 channel car amplifier is a type of car audio system. In general, this is a kind of amplifier which has 4 channels. We can classify it as a separate type of car stereo. The most common configuration for this type of amplification is four speakers and one subwoofer that are connected to the amplifier.

This type of amplifier is used in many vehicles. The main purpose of this type of amplifier is to get the sound of the music. This is a very common form of car audio system. It is used in many vehicle models today. The most common type of 4 channel car amplifier is the three-way crossover and subwoofer type.

The factors to consider when choosing a 4 channel car amplifier are as follows:

Channel Configuration

The first thing you need to decide is the number of channels that you want in your 4 channel car amplifier. You need to consider the number of speakers that you have, the types of speakers, and the type of bass that you need.

There are two main types of 4 channel car amplifiers: 3-way and 2-way.

3-way configuration In a three-way crossover and subwoofer amplifier, you can control the crossover points from left to right. The subwoofer speaker is connected directly to the subwoofer. The center speaker is connected to the crossover point that is between the two speakers. This is the main configuration for a 3-way car audio system. This type of car audio system is commonly used in vehicles.

2-way configuration In a two-way configuration, you can only control the crossover point between the left and right speakers. The subwoofer speaker is connected directly to the subwoofer. The center speaker is not connected to the crossover point between the speakers.

Output Power

The power of the amplifier affects the quality of the sound. There are many amplifiers with different power outputs. You need to check the maximum power of the amplifier before purchasing it. You should not purchase an amplifier with low power if you want to have good sound quality.

It is recommended to buy an amplifier that has the ability to produce a minimum of 100 watts. You will need to consider the power range of your car audio system. You will need to decide whether your car audio system will use a single amplifier or multiple amplifiers.

Volume Control

Another thing you need to consider when choosing a 4 channel car amplifier is the volume control. The volume control is very important in this type of amplifier. You can control the volume of each channel separately or all the channels together. This is very helpful for adjusting the volume during driving. You can adjust the volume of each channel separately or all the channels together.

Bass Controls

You should look for a car audio amplifier that has a bass control function. Most 4 channel car amplifiers have bass controls. You should pay attention to the bass control if you want a good quality sound. You should choose an amplifier with bass controls if you want to hear bass sounds clearly. The bass controls are very important for adjusting the bass sounds in your car audio system.

Midrange Controls

The midrange controls on the amplifier should be set so that the frequencies in the middle of the audio spectrum are emphasized. This will ensure that the vocals and instruments in music sound clear and natural.

Treble Controls

Treble controls allow you to fine-tune the sound of your amplifier by adjusting the high frequencies. The higher the setting, the brighter the sound will be. 

Amplifier Type

There are two types of amplifiers: Class D and Class AB. Class D amplifiers are very popular. You will find many amplifiers of this type. Class D amplifiers produce a high amount of power. The downside of using this type of amplifier is the sound distortion.

Class AB amplifiers are more popular than Class D amplifiers. Class AB amplifiers are more efficient than Class D amplifiers. They also produce less distortion. You can get both class D and class AB amplifiers.


The sensitivity of a car amplifier is an important factor to consider when choosing one. This specification tells you how much power the amplifier will need to put out in order to produce a certain level of volume. You’ll want an amplifier with a high sensitivity rating if you have a powerful sound system in your car and need to push a lot of sound through your speakers.


Is a 4 channel amp worth it?

A 4-channel amplifier is typically more expensive than a 2-channel amplifier, but it can offer more flexibility in terms of powering multiple speakers or subwoofers. A 4-channel amp can also be bridged to create a more powerful 2-channel amp, which can be useful for powering a single large speaker or subwoofer. Ultimately, the decision of whether or not a 4-channel amplifier is worth it depends on your specific needs and budget.

How many speakers can you run on a 4 channel amp?

A 4-channel amplifier can power up to eight speakers. The number of speakers that an amplifier can power is determined by its wattage and the impedance of the speakers. A 4-channel amp with a 50 watt RMS rating can safely power four 8 ohm speakers. If the amp is used to power two 4 ohm speakers, the total wattage available will be reduced to 25 watts RMS.

Can I run 4 speakers and a sub on a 4 channel amp?

Yes, you can run 4 speakers and a sub on a 4 channel amp. However, you will need to set the crossover frequency on the amp so that the subwoofer is not trying to reproduce the high frequencies as well. Typically, you will want to set the crossover frequency at around 80-100 Hz. Additionally, you will need to make sure that each speaker is receiving an appropriate amount of power by setting the gain on each channel accordingly.

Can I run 6 speakers off a 4 channel amp?

You can run 6 speakers off a 4 channel amp by using a technique called bridging. Bridging takes two channels of an amplifier and combines their power to create a single, more powerful channel. In this configuration, the two channels work together to drive a single speaker. This allows you to use a 4 channel amplifier to power six speakers.

How many RCA cables do I need for a 4 channel amp?

You would need two RCA cables to connect a 4 channel amp. The cables carry the audio signal from the amp to the speakers. The type and quality of the cable will affect the sound quality, so it is important to choose a good quality cable.

Can I bridge a 4 channel amp to 1 sub?

The short answer is no, you cannot bridge a 4 channel amp to one sub. Doing so would create an imbalance in the power distribution and could damage your equipment.

When bridging an amplifier, you are essentially combining the channels into one higher-power channel. This is done by wiring the positive terminals of two or more channels together and wiring the negative terminals together. The signal is then sent to the single output channel.


When looking for the best 4 channel car amplifier for mids and highs, it is important to consider all of the factors mentioned in this article. With so many different brands and models on the market, it can be difficult to determine which amplifier is right for you. However, by taking the time to read this article and doing your research, you should be able to find the best 4-channel car amplifier for your needs.

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