Top 10 Best 4 Channel Amp for Sound Quality in 2021

The 4 channel amplifier is designed to both enhance your sound quality and power output. It’s made from a sealed enclosure versus a ported enclosure, and it has a switchable direct output to an external power amplifier. It’s also made from good quality components, and it’s particularly ideal for use in vehicles and on boats.

There’s no need to spend a lot of money to amplify the sound of your stereo system. With all this technological advancement, you can connect a small, inexpensive receiver to your stereo speaker system and amplify your sound without paying for high-end spring-based amplifiers.

Nowadays, car amps come with a wide range of conditions, sizes, and power output. They can have anywhere from one to six stations, or the best 4 channel amp for sound quality is the most common since most cars have 4 speakers.

That’s why we’ve scoured the internet looking for the best things needed to get your factory stereo system from mediocre to the very best, we have compiled a list of the best 4 channel amp for sound quality. After that, we provide a complete guide for the buyer, so that you feel confident that you are making and choosing the information.

In this article, we will do several reviews of the best 4 channel amp for sound quality. That way you’ll add some headaches to what would be a good best 4 channel amp for sound quality for you. At the very least it will give you a good idea of ​​what you need to look for in the best 4 channel amp for sound quality when you buy one. Once you’ve bought and installed your new 4-channel amp you won’t believe how much better the sound quality of your car will be.

What is a 4 channel amplifier?

A 4 channel amplifier is a type of amplification that can be used to power a small to a medium-sized speaker system. They use a process called power amplification that allows for a high level of power to amplify sound and mixes it with high-quality transformer-based amplification circuits. A 4 channel amplifier is typically used on speakers that are part of a stereo system, a signal at the output is increased and the amplifier is able to drive two high impedance speakers together. They are not commonly used for other applications.

A 4 channel amplifier is a type of electronic amplifier. It gives two or more electrical signals to the same or different impedances. They are typically used to boost the power output of high-current DC circuits or to boost the output power of low-current AC circuits. Most 4 channel amplifiers up to eight ohms are called Class AA amplifiers.

This is a device that receives an electrical signal and, as the name implies, amplifies that signal. It then sends that signal to its machines for approval by speakers, whether it be 6x9s, dedicated tweeters, or subwoofers. The 4-channel amp is an amplifier that delivers the same power to all 4 channels for sound quality.

Types of 4 channel Amp

Although most amplifiers can be classified into A, B, AB or D, we will focus entirely on AB and D, as most car amplifiers fit into these two categories. There are other variations, such as BD. In general, other amplifier classes include key AMP features to enhance performance.

Class AB

Class AB amp is a combination of Class A and Class B. They are much more efficient than the Class A AMP but do not distort like the Class B AMP. As a result, many car audio systems use this type of full-range AMP. Basically, transistors have a constant current flowing through them, but when there is no signal, they reduce the amount of current in the circuit. Class AB amplifiers are analog.

Class D

Class D AMs quickly turn the current on and off the transistors. This results in a converted or pulse output signal. This type of AMP is very effective. However, switching at high frequencies can cause distortion. To address this issue, AMP will include a low-pass filter because lower frequencies do not cause the same problem. The power of Class D Amps makes them very popular in-car audio systems.


Best 4 channel amp for sound quality

  • Alpine MRV-F300
  • Rockford Fosgate P600X4
  • Alpine X-A70F X-Series
  • Pioneer GM-D1004
  • Hifonics ZRX616.4
  • MTX Audio Thunder 75.4

1. Alpine MRV-F300 4 channel car audio amplifier

Our first product is from Alpine, a brand that has been producing high-quality audio equipment for decades. In fact, Alpine is the only product on our list that can get two places. With this amp, Alpine has released a four-channel front-drive amp for the front door speakers and acoustic rear.

See also  Best 4 channel amplifier car audio 2000 watt | 4 channel amp 2000 watt

As well as power and sound quality, size is also an important factor for a car amp. This is especially true for compact cars when space is limited. The Alpine MRV-F300 is a four-channel D D amplifier with, smart design, and quality build. The lightweight ratio and great price tag on audio quality make the F300 one of the best in its price list.
The Alpine MRV-F300 is a compact amplifier that only calculates 7-7 / 8 ”(W) x 6.5” (D) x 2-3 / 16 ”(H). Its rotating weight of 4lbs makes it one of the best 50Wx4 light amplifiers. Stainless steel black housing with company logo and blue power indicator.

With a crossover frequency range of 50 to 400 Hz, some lower frequencies will be directed to your Woofer or subwoofer than many other amps on our list, but the power of the subwoofer does not require 100W. In addition, amps have an excellent THD of up to 0.03 percent, depending on your configuration – or using a station
The rear panel features speaker-level or high-level controls on all four channels, low-level line input, and crossover controls.


 Alpine MRV-F300


  • It has a well-integrated profile
  • It has the largest crossover range in our range at 50 to 400 Hz
  • Has an excellent THD that ranges from 1 percent all the way down to 0.03 percent depending on your configuration


  • A tad expensive for what you get
  • It may be partially allowed

2. Rockford Fosgate P600X4 Punch – Audio Quality Amp

Rockford Fosgate P600X4 Punch
When buying a car amplifier, it is important to choose the best choice for the amplifier, as different classes come with a variety of different locations and queries. The Rockford Fosgate R300X4 is a more efficient A / B amplifier than class A amplifiers and produces less distortion than the class B amps.

The Rockford R300X4 Prime is a world-class model A / B amps. It comes with a beautiful compact disc. It bows the old style with the famous Rockford Fosgate logo above.

Unfortunately, if your speakers are 4 ohms, this amp will not work again and will compress 75 watts per channel. Plus, this amp will take a big bite in more than one way. First of all, it’s one of the most expensive amps on our list, and it’s one of the biggest. However, it’s easy to use controls.

Sound-wise, the R300X4 offers plenty of power and Christmas tone at any sound level. It is rated at 50W x4 at 4ohm or 75W x4 at 2ohm, while the four channels can be rated at 150W x2. At a frequency response of 20-20,000Hz, the total integrated frequency is less than 1%. Total pumpkin power is 600W and RMS power is 300W.


  • Very easy setup
  • 150 watts per channel at 2 ohms fine
  • 2 and 4-channel modes


  • One of the most expensive amps on our list
  • Higher distortion than Class A

3.Alpine X-A70F X-Series – Best amp for sound quality

Alpine X-A70F X-Series
Already established, Alpine is a leading product in the automotive market. That’s why it’s no surprise that the Alpine X-A70F is the best4 channel amp on our list. In fact, this is actually the best amp for most of the other amps errors in which it takes the title. However, this is also the most expensive place on our list.

First, this amp draws 120 watts of RMS power per channel at 4 ohms impedance. This is actually the only amp on our list able to do so. In addition, the Alpine X-A70F sounds very wide with an impressive range of 5 Hz to 100 kHz. No other amp on our list comes anywhere near that price. On the plus side, the X-A70F also has low noise at 115/95 dB and ties for the first time with MTX with a 0.05 percent THD.

The only downside is the difference. This is one of the biggest amps on our list – even though it’s a topology D course, so the heat won’t be a problem. Also, the input feeling is slightly reduced at 400 mV to 4 volts which will require new head units or signal transmitters – a small price to pay for such a quality best 4 channel amp for sound quality.


  • Easily adjustable settings
  • Clear sound and high confidence
  • Good specification with high volume levels


  • The installed hardware may be better

4.Pioneer GM-D1004 – Best 4 Channel amp for Sound Quality

Pioneer GM-D1004
In cases where class D amplifiers are too many, there are Ultra-compact FD models. Due to their relatively small size, these amps tend to provide less power than the standard D models, but they reduce in size. The Pioneer GM-D1004 is an affordable 4-channel FD amplifier, 400 watts of maximum power output, and minute size.

See also  Best 5 channel car amplifier 2021 | Best 5 channel Amp

The Pioneer GM-D1004 comes in black perfumed housing with a broken company logo and overwritten notes. The amp measures 7-1 / 8 ”(W) x 2-1 / 2” (D) x 1-1 / 2 ”(H). The houses are made of metal mixed with this, which gives this a modern vibe.

Key features include compact design, a variety of input modes, and the ability to ride channels. Similar to its larger siblings, the GM-D1004 also has high and low crossovers (both optimized at 80Hz), bass boost, MOSFET output, and high and low slopes (both at 12dB / octave).

This amp is rated at 45W x4 to 2ohm. Also, you can create two 90W x2 channels in 4ohm. The pumpkin capacity of this small amp is 400W in total. At a frequency response rate of 10 to 40,000Hz, the total standard deviation of the ion is less than 0.05% (at 1kHz). This small amp delivers a sharp, well-defined tone or in multiple-access settings.


  • One of the smallest profiles on our list
  • Built-in filters are high and low
  • It works in 2 and 4 ways


  • Not good for starving power

5. Hifonics ZRX616.4 Zeus amp for sound quality

Hifonics ZRX616.4 ZeusText

Class AB amplifiers are a great choice for car owners who would like to get the best class A models (specs and audio quality) and class B models (high efficiency). The ZRX616.4 Zeus by Hifonics is a relatively inexpensive channel game that extends the hybrid AB top base. This is an excellent solution for those who want more green energy at an affordable price.

The ZRX616.4 Zeus is a medium-sized amplifier in the modern case of the instrument. The upper part of the amp is decorated with the illuminated Hifonics logo and laser-etched Zeus series, model name, and power up. The full size of this amp is 12,6 ”(L) x 2.4” (H) x 10 ”(W).

The main features include low RCA output and installation, PWM MOSFET power supply, Hifonics’ Mount Transistor design. Safety features include overload, overheating, and short circuit protection. The ZRX616.4 Zeus can be operated in 4-way and 2 channels and has no remote control arrangement.

This amp is rated at 150W x4 at 2ohm or 75W x4 at 4ohm. Alternatively, you can shut down two stations to get 300W in 4ohms. The frequency response is between 10 and 45,000Hz, while the input power is 600W. A separate hi-pass filter can be set between 60 and 1,200Hz and a low 30 and 250Hz filter.


  • 2 channels and 4 channels
  • Adjustable filters for high and low level
  • Flexible bass


  • Heat when played with a very high gain for a long time


6. MTX Audio Thunder 75.4 sound quality 4 channel amplifier

Class AB Amps are very popular among car owners who want a full sound setup. This is due to the relatively inexpensive prices and best of class A and class B. The MTX Audio Thunder 75.4 is one of the many amps in the Thunder class.

The popular MTX series has been around for more than 20 years, which speaks volumes about its quality. Thunder 75.4 is the smallest Thunderbolt in current production. It goes into a nice house, with a company logo and a power indicator displayed on top. Standard size is 6-5 / 16 ”(D) x 12-5 / 8” (W) x 2-1 / 4 ”(H).

This amp has a built-in surface, which gives it great resistance to vibration whether you drive in rocky or uneven terrain. It is very similar to the amplifiers of a 4-channel vehicle, with various crossovers. The front-channel filter can be set anywhere from 10 to 200Hz at a 12dB / octave slope. Lower and lower background filters range from 50 to 750Hz at the same 12dB / octave.

Thunder 75.5 is rated at 75W x4 to 4ohm or 100W x4 to 2ohm. You can close two 200W x2 channels to 4ohm. The THD is 0.05% at the RMS rated power, and the S / N ratio is 78dB. This is a descriptive recommendation for those looking for a clean and vibrant tone at a reasonable price.

Considering its size, the 445U is capable of 45W x4 or 90W x2 at 4ohm. The sensitivity of the RCA input ranges from 0VV to 4V (you need to supply 4V to get full power), while the speaker level input ranges from 0.5V to 10V.

See also  Best Monoblock Amp In 2021 | Best 1000 watt monoblock amp

MTX Audio Thunder 75.4


  • Compact and simple
  • A THD of less than 0.05 percent is tied for the first time in the list
  • 100 watts per channel at 2 ohms and 75 watts per channel at 4 ohms is very good
  • The frequency range of 15 Hz to 25 kHz is good


  • A fairly expensive amp for our list


Guide for Buyer’s

The four parts of the best 4 channels amp generate output through four separate channels. At a minimum, it powers two sets of full-set speakers, but it can also power two subwoofers or a single double voice coil subwoofer. When you upgrade your OEM speaker and add an external amplifier to your audio system, it makes a significant difference in sound quality. For example, you have more control over the balance and finish of your speakers.

If you want to reduce road noise, the definition of an amplifier can’t distort it a bit. In short, the top best 4 channel amp for sound quality provides more power to your front and rear speakers.

Sound Quality

There are a few features and features that will ultimately contribute to the best audio quality you can offer your amp. Some of these include filters, frequency response, sensitivity, exposure to sound and sound, and total distortion, or THD. All of these factors affect different characteristics of the sound system and depending on what you listen to, some will be more important than others.

Filters – There are 3 filters used, two of which are available in good amps and one special. The two filters found in most amps will pass through and pass the low.

Number of channels

Modern car amplifiers can be anywhere between six and six stations. They are all designed for different setups and have their own height and versatility. The choice here should be based on your needs.

If you want to power the subwoofer in the background, then you will probably be better off with mono (single channel). Also, you can add a mono amp to the rig where the four-channel amp is plugged into a full-size speaker amp and you need a separate power source for the sub.

Some people prefer two sets of two-car amplifiers, one for two front speakers and one for the back. Also, you can block an amp with two channels to power one subwoofer.

The Best 4 Channel amp for Sound Quality offers enough flexibility for most car systems and is currently the most popular option. Aside from using an amp with four channels to power the front and rear speakers, you can also power the high-end speakers that come with unique tweeters and fur.

You will have to add an amp with two channels for the rear speakers, or another 4 channel amp if you have half speakers.


All music lovers can attest to the fact that having the best plans for your car in car makes driving 100% enjoyable. However, many cars, some expensive, come with stock stabs.

However, if you’re not looking to pay at least 50 percent more than the asking price of all alternatives, there are still plenty of amps that can satisfy your needs. If you need a budget amp, for example, the Kicker CXA300.4 is a very good amp with a wide range of performance to suit many configurations rather than many.

If you intend to use the amp for your speakers and the amp for your subwoofer – which we highly recommend best 4 channel amp for sound quality, JL Audio JX400 / 4D is where you should look. Of course, if you want one amp to dominate them all, it’s hard to fault the Alpine MRV-F300.

No matter, there’s an AMP that can fit your needs on this list no matter what they are. In addition, with the help of our comprehensive consumer guide, you cannot look at the best 4 channel amp for Sound Quality, both on our list and not, and make the right decision for yourself.

This is where the speakers and amplifiers come in from the back. When buying an amplifier, make sure you find one that has enough channels and power for your speakers. Also, be sure to match the amp and speaker cutouts, and to choose the right amplifier section for your setup.



Leave a Comment