Best 4 Channel Amp For Sound Quality

Best 4 Channel Amp For Sound Quality

Do you feel music more than others? Are the normal amplifiers just not cutting it? Want the music to act like an ocean you’re drowning in? It can be your car, or it could be somewhere else – a four-channel amp will give you the best sound that you’ve experienced. Amplifiers multiply sounds and a four-channel amplifier has four channels to connect to speakers. You can connect to one speaker and a subwoofer by creating a bridge between two channels. 

Or, you could just connect the four channels to four speakers. In fact, you can use the amp any way you want. But, in order to truly enjoy, you need to find the best 4 channel amp for sound quality.

Top 5 Best 4 Channel Amps For Sound Quality

1. Alpine MRV-F300 4-Channel Car Amplifier 

Alpine MRV-F300 4-Channel Car AmplifierAs the best, we have chosen the Alpine MRV-F300. Besides the best quality sound with minimum distortion, it comes at an unbelievable price. It’s well-built and has features that make using it very convenient.

Distribution of power is the first important thing when checking out 4 channel amplifiers. And, the Alpine MRV-F300 is a pro at it by distributing 50 watts of power per channel equally. Further, the sound has a high SNR and low THD.

The quality makes this unit even more amazing – at a price that’s half the price of similar quality amplifiers from other brands. You may have to modify a few parts of this amplifier to get the best.

This amplifier is very compact so you don’t have to worry much about where to keep it. However, it doesn’t sound as good as the AB class amplifiers either, and tends to heat up at times.


  • Distributes the power equally and very well
  • Durable, good quality build
  • Quite affordable for the quality
  • Low distortion
  • Loud good sound
  • Compact build.
  • Easy to use


  • May need a few modifications
  • Might get hot
  • Not as good in sound quality as an AB class

2. JL Audio JX400/4D 4 Channel Car Amplifier

JL Audio JX400/4D 4 Channel Car AmplifierWant to level up your sound a bit? The small volume isn’t cutting it? If so, this JL Audio JX400 with power of 70 watts per channel might just be your jam.

Most of the time, you won’t even want to turn up the volume. Further, even at such high power, the sound isn’t distorted. The sound quality is top-notch with high SNR and low THD again.

In fact, the installation is pretty easy too. Moreover, the unit is quite compact and small so you won’t have trouble setting it up at all. The problem you may face is quality.

One or more of the channels may stop working too soon. Otherwise, the sound quality is one of the best at the price this amp comes at.


  • Very high power per channel
  • Quite a clean sound
  • Easy to set up
  • Compact build
  • Great value for the money
  • Quite versatile


  • Not the best build quality
  • The channels may stop working too soon

3. MTX Audio THUNDER75.4 Car Amplifier

MTX Audio THUNDER75.4 Car AmplifierWant something to go with the MTX terminators? The best choice would be this MTX Thunder75.4 amplifier. However, that’s not only what this amp is made for – it can be pretty flexible as to what you use it with.

It has the A/B topology so expect the best sound quality. In fact, the main con of A/B topology was the space consumption – that has been dealt with in this case. This amp has pretty compact build.

You may also face a bit of overheating issues. But, the amp is best in terms of volume and low distortion. Lastly, it’s pretty affordable too.


  • A/B topology makes the sound quality incomparable
  • Very low distortion
  • Quite flexible in the case of LPF and HPF
  • Compact build
  • Reasonable price


  • May have some overheating issues.

4. Kicker CXA300.4 4×75-Watt Four-Channel Full-Range Amplifier

Kicker CXA300.4 4x75-Watt Four-Channel Full-Range AmplifierIf you’re looking for an amplifier that you can use very flexible due to its versatility, then this Kicker CXA300.4 amp might just be your thing. It also has an A/B topology, making it sound great. However, you may experience some distortion at higher volumes.

But that also depends on what you’re using it with. It’s pretty portable and the power per channel is amazing. Further, you can create a bridge with this unit. However, the build quality may not be the best or most durable.

At times, the channels may malfunction and stop working. Otherwise, it’s an easy-to-use and pretty affordable unit.


  • Pretty high power and volume
  • Great sound quality
  • Portable despite having AB topology
  • Pretty affordable
  • Easy to use


  • May get distorted at higher volumes
  • Channels may malfunction

5. Alpine X-A70F X-Series 4/3/2 Channel Power Density Amplifier

Alpine X-A70F X-Series 4/3/2 Channel Power Density AmplifierYou can really trust Alpine in terms of quality and durability of amps. Further, they provide the best functionality. If you want to experience music at its best, this X-A70F is a good idea.

In fact, it has an unbelievable power of 120 watts per channel. Further, it spreads the frequency quite well, giving you a better feel and sound quality. The distortion is very low at the highest volumes too.

It connects very easily to the speakers and can be user very easily too. The only con is, it’s pretty expensive.


  • Best build quality and durability
  • Great sound quality
  • Very powerful and loud
  • Great design
  • Doesn’t overheat
  • Compact body
  • Easy to use


  • Pretty expensive

Buyer’s Guide

Here are a few factors you should keep in mind when looking for a good 4 channel amp.

The overall power and power per unit

Instead of two, the amp is using four channels. So, it’s evident that it needs more power. The overall power and per channel power both should be high. 50 watts is a minimum requirement for power per channel. You can also try for 75 watts per channel if you really like feeling the music.

Class AB or D

AB-type 4 channel amps are the traditional models. These are bulkier with simpler designs. However, their sound quality is way better than D models. On the other hand, D amps have a more modern design and are more compact and portable. Although they sound good, they don’t sound as good as the AB models. Further, AB amps are cheaper.

Sound Quality

You don’t always have to listen to the amp to tell the quality. In fact, there are some quantitative factors helping you determine how good the sound quality is. These are:

The Filter: You’ll find a high pass and low pass filter in the amp. Each has its forte. High pass filters are better for full-range speaker sounds and similar sounds and low pass ones are for bass and similar sounds. You see, high spreads more while low doesn’t.

Signal to Noise Ratio (SNR): The more the value of SNR, the less noise in the amp. So the sound will be clearer. Decibels are used to calculate it.

Total Harmonic Distortion (THD): This means the amount of distortion you may face. The lower the value the better as the distortion will be low as well. You will usually see it measured in percentage.

Design Quality

This is where you consider the circuit board design, the internal connections, the quality of the materials, and so forth. In fact, this won’t only affect the durability of the amp but also the quality of the sound.  

Closing Thoughts

In conclusion, you will find many amps that are of top quality and value. However, it may be hard to find the best 4 channel amp for sound quality that fits your speaker or head perfectly. Therefore, make sure you find a compatible one.

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