Skip to content
motorbeast logo
  • Autos
  • Audio
  • Bikes
  • Batteries
  • Detailing
  • Oils
  • Parts
  • Questions
  • Roof Boxes
  • Scanners

7 of the Best 4-Channel Amplifier for Cars

Written BySteve Riley Updated on13/07/2022

4 Channel Amplifiers For CarsYou just bought a new car and are excited to enjoy your…

4 Channel Amplifiers For Cars

You just bought a new car and are excited to enjoy your cruising experience. Your pre-installed car stereo’s sound quality is a bit disappointing and you wonder what you can do to make it better.

Table of Contents
  • 1. Alpine MRV F300
    • Key Features
    • Pros
    • 2. JL Audio JX400/4D
    • Key Features
    • Pros 
    • View price on Amazon
  • 3. Rockford Fosgate Punch P400
    • Key Features
    • Pros
    • View price on Amazon
  • 4. MTX Audio Thunder 75.4
    • Key Features
    • Pros
    • View price on Amazon
  • 5. Boss Audio Systems R1100
    • Key Features
    • Pros
    • Cons
    • Legal Disclaimer
    • View price on Amazon
  • 6. Kenwood KAC-M300
    • Features
    • Pros
  • Check Price on Amazon
  • 7. Kicker CXA300
    • Features
    • Pros
    • View price on Amazon
  • Which Is Better Between a 2-Channel Amp and 4-Channel Amp?
  • What Installation Options Are Available?
  • Why Should I Buy a Class D Amp?
  • What Are Watts per Channel?
  • What Are Impedance (ohms)?
  • What Affects My Car Sound Quality?
    • 1. Filters
    • 2. THD- Total Harmonic Distortion
    • 3. Signal-to-Noise Ratio (SNR)
    • 4. Frequency Range

You know of amplifiers but are not sure how to go about the highly technical terms at the electrical dealer’s shop. Have no fear. On this article, we will discover together which 4-channel amp speakers are the best for your car and provide the desired sound quality.

choosing a 4 channel car amplifier
4 Channel Car Amps

With a 4-channel amplified car speaker, you would have more options to work with. You could use one channel per speaker and connect all four speakers or you could bridge (combine) two channels to power up a subwoofer and bridge the other two to power up the 4 speakers. The sound quality will be noticeably impressive with nice low bass tones and high tones with no interruption.

Settling on the ideal amp speakers could be tasking as the information sometimes is misleading and the market is filled with options! Thankfully, we have put together a short summary of the best to help you narrow down on available options.

1. Alpine MRV F300

Excellent Choice
Alpine MRV-F300 4-Channel Car Amplifier, 50 Watts RMS x 4
  • 75W RMS X 4 (2Ω , 14. 4V, ≤ 1% THD+N)
  • 50W RMS X 4 (4Ω , 14. 4V, ≤ 1% THD+N)
  • Same Power In A 40% Smaller Chassis
  • Evolution To Class D Digital Platf
Check Latest Price on Amazon

Alpine Electronics is a well-known and trusted manufacturer of electronic components and their specialty is in car audio and navigation systems. This automatically makes the Alpine MRV-F300 a best-buy based on its brand. Aside from the name, this speaker is a great fit for those who love to crank up the volume but have limited car space.

This 4-channel speaker features caps that snap on and off making its placement easy. It is so compact it can fit under a car seat! With its D-class circuitry, power consumption is minimized and you will not likely have any heating issues.

On channel 3 and 4 of this device, full crossovers and bass boosts are possible and technology has been improved on this model to minimize the background noise. Overall, this is the number one best 4-channel amp speaker. You can bet your money on it.

Key Features

  • Class D technology
  • Full range crossover
  • Bass Equalizer boost

Pros

  • Great brand reputation
  • Highest crossover range on this list (50-400 Hz)
  • Compact size

2. JL Audio JX400/4D

No products found.

Best known for their subwoofers, the JL Audio company is one of the pioneers of the car audio industry. This speaker powers up to 75 watts on each component speaker and produces a great quality of sound from high to mid-range frequencies.

JX400 has sleek tamper-free removable cover and a blue LED light which is a lovely addition to your car’s interior design. This device is super easy to use as it is compatible with any car stereo system and it also comes with the D-class technology which is perfect for high quality sound.

The only drawbacks are that the background noise is a bit more obvious and the price is a bit too much for budget shoppers.

This Amp may be unavailable at the moment (June 2022). If that is so, check out our option below.

Key Features

  • D-class technology
  • Removable cover
  • Bridgeable crossover

Pros 

  • Consistent power output
  • Sleek build quality
  • Compatible with multiple systems

View price on Amazon


3. Rockford Fosgate Punch P400

Rockford Fosgate P400X4 Punch 400 Watt 4 Channel Amplifier
Rockford Fosgate P400X4 Punch 400 Watt 4 Channel Amplifier
  • The Punch P400X4 is a 400 watt 4-channel amplifier (2.38”...
  • Versatile multi-channel design is a perfect choice for...
  • RCA inputs can accept both Hi and Low level audio signals...
  • Featuring Class A/B topology, RCA pass-thru outputs,...
  • Famous Rockford Fosgate build quality with a full 1-year...
$339.99
Buy on Amazon Price incl. tax, excl. shipping

Last update on 2023-03-12 / Affiliate links / Images from Amazon Product Advertising API

Rockford Fosgate is an American force to reckon with in matters of great audio experiences brought to you in some cool lifestyle products. With 50 watts, the P400 packs a punch and keeps in company trend with its sturdy structure. Though it sits in the more vintage A/B class of speakers, Rockford have added their own Trans-ANA circuitry to remove noise and enhance the audio experience.

Powered with 400 watts, this speaker is clearly high on market value and you would need to part with much more money to get your hands on it. Based on the company’s track record, this 4-channel speaker will not let you down.

Key Features

  • aluminum heat sinks with top mount controls
  • class A/B circuit technology
  • power supply thermal sensing and real-time output

Pros

  • Varied settings
  • Less Noise
  • High powered amp

View price on Amazon


4. MTX Audio Thunder 75.4

Sale
MTX Audio THUNDER75.4 Thunder Series Car Amplifier
MTX Audio THUNDER75.4 Thunder Series Car Amplifier
  • Class A/B Topology
  • Variable LPF and HPF
  • Surface Mount PCB
  • Small Foot Print Design
$154.90
Buy on Amazon Price incl. tax, excl. shipping

Last update on 2023-03-12 / Affiliate links / Images from Amazon Product Advertising API

Manufactured by yet another American based company, the MTX Audio Thunder comes roaring in with a whooping 75 watts for each of the 4 speakers connected and 100 watts when 2 channels are bridged to a subwoofer and the other 2 to the car speakers.

Similar to the Rockford, this amp features in the A/B category of 4-channel speakers. This presents a problem with heating which greatly limits the options for its placement. Another similarity they share is in the high monetary value placed on it.

Key Features

  • Class A/B Topology
  • Surface Mount PCB
  • Small Foot Print Design

Pros

  • Adjustable high and low crossover
  • Great bass and surround
  • Brand recognition

View price on Amazon


5. Boss Audio Systems R1100

No products found.

Ramp up the bass with the Boss Audio Riot R1100M Class A/B Monoblock Amplifier. With 1100 Watts Max Power and MOSFET power supply, this amplifier takes your vehicle’s audio system to the next level. Customize the sound with Variable Low Pass Crossover, Bass Boost and Remote Subwoofer Control. Amplifiers in the Riot Series are perfect for first time car audio buyers looking to add bass, enhanced sound and performance to their system at an affordable price.

This small but powerful speaker is listed in the D-class category of amp speakers and promises a crisp and clear sound quality with no distortion.

The affordable pricing, the convenient compact size, the mid-range audio quality and its versatility makes this speaker a must have!

Key Features

  • Class A/B Monoblock, MOSFET Power Supply
  • 1100 Watts @2-Ohms Max Power
  • 825 Watts RMS @2-Ohms
  • High and Low Level Inputs
  • Variable Low Pass Crossover, Bass Boost
  • Remote Subwoofer Control

Pros

  • Trusted brand name
  • Affordable
  • Easy installation

Cons

Legal Disclaimer

This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

View price on Amazon


6. Kenwood KAC-M300

This is a niche product from Kenwood that works in cars and for motorcycles as well. This is a compact sized amplifier with adjustable crossover. Its SNR at 76dB is quite low and is quite noisy. Frequency ranges that can be achieved with this amp is between 20Hz to 20Khz which is not too bad for this budget amp speaker.

Kenwood KAC-M3004 Compact 600W 4-Channel Car/Marine/Powersports...
Kenwood KAC-M3004 Compact 600W 4-Channel Car/Marine/Powersports...
  • PEAK POWER: Max Power 600 Watts. RMS (50 Watts x 4 @ 4-Ohm...
  • RMS POWER: (50 Watts x 4 @ 4-Ohm or 75W x 4 @ 2-Ohm. High...
  • MARINE CERTIFIED: Conformal coated marine grade circuit...
  • FEATURES: KENWOOD Triangle Indicator Light, 3-Way Protection...
  • COMPACT SIZE: Cutting Edge KENWOOD Amplifier technology...
$170.00
Buy on Amazon Price incl. tax, excl. shipping

Last update on 2023-03-12 / Affiliate links / Images from Amazon Product Advertising API

Features

  • Bridged RMS power
  • Simple set up of multiple speakers with its dual speaker terminus
  • Class D car/ marine amplifier

Pros

  • Very affordable
  • Small compact size
  • Easy to set up

Check Price on Amazon


7. Kicker CXA300

Kicker CXA300.4 4x75-Watt Four-Channel Full-Range Amplifier
Kicker CXA300.4 4x75-Watt Four-Channel Full-Range Amplifier
  • New Kicker 43CXA3004 300W 4-Channel Car Audio Power...
  • 75W x 4 @ 14.4V
  • 150W x 2 @ 14.4V, 4-Ohm bridged mono
  • 600W @ 15.6V
  • Class AB
$149.95
Buy on Amazon Price incl. tax, excl. shipping

Last update on 2023-03-12 / Affiliate links / Images from Amazon Product Advertising API

This A/B class amp speaker is a bit on the bulky side which makes its placement difficult. The Kicker CXA300 makes up for this with its 95 dB SNR guaranteeing a smooth listening experience. Highly sensitive to legacy head units, it is compatible with most vehicle brands.

Features

  • Total output power of 600 watts
  • Cooling heat sinks
  • Frequency response of 10-20,000 KHz

Pros

  • The least expensive amp on this list
  • Fair SNR ratio of 95dB
  • Efficient heat sinks for cooling

View price on Amazon


Now that you are equipped with a variety of product knowledge, it is important to take these 5 things into consideration before cashing out on that desired amp speaker.

Best Seller Car Amps

SaleBestseller No. 1
BOSS Audio Systems R1100M Riot Series Car Audio Subwoofer...
BOSS Audio Systems R1100M Riot Series Car Audio Subwoofer...
  • Power - 1100 Max x 1 @ 2 Ohms, 550 Max x 1 @ 4 Ohms
  • Class A/B Topology - Class ‘A’ amplifiers have enormous...
  • Mosfet Power Supply - A MOSFET is an electrical switch that...
  • Low & High Level Inputs - A low level (RCA) input is...
  • Variable Low-Pass Crossover - Subwoofers reproduce sound...
$84.99
Buy on Amazon Price incl. tax, excl. shipping
Bestseller No. 2
BLAUPUNKT 750W 2-Channel, Full-Range Amplifier (AMP7502)
BLAUPUNKT 750W 2-Channel, Full-Range Amplifier (AMP7502)
  • Optimized 563-watt RMS and a max output power of 1500 watts,...
  • 750 watt maximum power full-range amplifier Compactly built...
  • Stable at 1 ohm | Remote Subwoofer Level Control Included...
  • Featuring 2-Way Protection Circuitry and 4 Gauge Power &...
  • You'll have full reign over your amplifier with the built-in...
$53.90
Buy on Amazon Price incl. tax, excl. shipping
Bestseller No. 3
Audiobank Monoblock 1600 WATTS Amp Class AB Car Audio Stereo...
Audiobank Monoblock 1600 WATTS Amp Class AB Car Audio Stereo...
  • 2 Ohm Stable Operation & Soft Turn On Circuit
  • Thermal and Speaker Short Protection Circuitry
  • Heavy-Duty Aluminum Alloy Heatsink | Class A-B Operation
  • Remote Turn-On / Turn-Off Circuit
  • LED Power and Protection Indicators
$49.99
Buy on Amazon Price incl. tax, excl. shipping

Last update on 2023-03-01 / Affiliate links / Images from Amazon Product Advertising API

Compatibility

A crucial perspective to consider is the compatibility of your amp to the expected application and to your head unit (car stereo system). Are you going for a 2-channel or a 4-channel application? What make and model is the car and its sound related features? Be sure to know the answers to these questions. Confirm that your audio quality is up to par before you pay for the amp.

Amplifier Fuse

Most important component of a powerful amp is the fuse. You must check and actually confirm the amperage provided for in the device. This is because the fuse greatly determines the accuracy of the promised watts production. A little math is involved but it’s nothing too huge for your calculator to handle.

This calculation is done by multiplying the watts of the amp speaker by 2 and dividing the result by your car’s battery voltage. The final figure represents amperage and the voltage should not fall below this margin.

Size of the Amplifier

Well before you head out to the dealer shop, take some rough measurements to be more accurate in picking a perfect fit. Most authorized dealerships are well versed with car installations and they might only need your car make and model to list out your options. Either way, it is always best to have hard facts and to be well informed yourself.

Powering the Amp

Electronic configuration is not an easy chapter and most of us might not know how to go about it. This is why previous extensive research and shopping around should be carried out to make sure that the amp features are to your satisfaction and that they deliver quality.

Design and Material of The Amplifier

Consider how durable the material is that was used in its manufacture. Keep in mind that some of these amplifiers are class A/B which presents a heating issue. The material will guide you in knowing where to place it and how to maintain the speaker for longevity.

As we are all here to gather more understanding on the 4-channle speakers, it wouldn’t hurt to add a little section for the Frequently Asked Questions. They might broaden your options.

FAQs

Which Is Better Between a 2-Channel Amp and 4-Channel Amp?

They all work the same way but their application is different. 2-channel amplifiers are great for powering subwoofers because they push the bass. A 4-channel application gives greater versatility in how connections can be made. Either wired as a two-channel or four-channel. You could also bridge it to make use of two or three channels for greater performance.

A two-channel amp is a safe bet if you are on your own often and are not into loud amplified music. But, if you like to be out of the car and have the volume turned up so you can hear the bass and want the speakers to be really loud, a four-set amp + speaker configuration will be a better option.

What Installation Options Are Available?

Installing an amp should only be considered if you know how to sort out the wiring. In todays modern cars this type of work is best left to a car electrician who knows where the wires are located nearest to where the amp will be fitted.

For more complex and bigger sized amps, you might need to contract an installer who would do all the welding that might be required. Unfortunately, this is also quite expensive but at least it saves you the time and the headache of doing it yourself.

Why Should I Buy a Class D Amp?

Class D amplifiers provide the same quality as class A and class AB amps, but at a lower price.

These are new generation amplifiers made with new technology to reduce noise in the background and to manage any heating issues. They also tend to be more compact than the A/B amplifiers so they would be ideal for tight fits.

A Class D amplifier is the most efficient type of amplifier because it converts energy to voltage the fastest. For instance, a Class D amplifier can convert AC current into a DC voltage faster than any other kind of amplifier. This makes it the most effective amplifier for audio applications.

What Are Watts per Channel?

Also known as RMS (root mean square) refers to the power in wats that can be pushed through each channel at a constant rate. Another term mostly used by marketers is Peak wattage which simply means the maximum wattage that can be pushed through a channel at once.

What Are Impedance (ohms)?

This aspect of an amp dictates how much watts per channel (RMS) can be pushed through at any given time. In effect, a lower impedance (ohms) produces higher RMS wattage per channel It is crucial to match the speaker impedance with the amp impedance otherwise the amp will not work.

If you would rather not think about impedance, there are a select few amps that can push through the same RMS regardless of impedance.

Ohms is a measurement of electrical resistance. The higher the resistance, the less electricity flows through the circuit. So, when you’re buying a new amp, you need to know the wattageto ensure it will provide the proper amount of power to the components.

What Affects My Car Sound Quality?

Car audio sound quality is affected by a number of factors including vehicle design, vehicle components, and vehicle maintenance. The main factor will be the quality of the components that you fit and the quality of the wiring that you install.

The position of your speakers and tweeters in relation to where you sit, the amount of speakers you install and the number of amps you fit to control the sytem will all play into how good, or bad your system sounds.

1. Filters

Most amps are fitted with two filters: the high pass and low pass. High pass filters pick up on high frequency signals and sends them out to the speakers equipped to play them. The same occurs with the low pass filters sending out the low frequency signals to their player which is the subwoofer.

2. THD- Total Harmonic Distortion

Distortion occurs during decoding when the signal reaches the amp before it is pushed through the speakers. To limit this aim for an amp with the lowest THD which is anything below 3 percent. Anything higher distorts the actual sounds producing a distinct difference in the overall quality.

3. Signal-to-Noise Ratio (SNR)

SNR value is measured in decibels and determines how much interference a signal takes through the amp. Go for an amp with a high SNR value for a seamless experience.

4. Frequency Range

An amp that has high frequency ranges has a broad soundscape and this will be felt in the high and low frequency signals.

Conclusion

Given that this is a business like any other, it is highly profit driven and most marketers will tend to confuse you with high watt features of various cheaper amplifiers.

We highly recommend you get the Alpine MRV-F300 or the JL Audio JX400/4D as they are both D-class 4-channel car amps, they are both compact and they produce superior sound quality.

After all, it is important to apply yourself, carry out a good research on your preferred amp and take your time! Remember poor configuration of these systems could fry your car’s entire electronic circuit. It is always best to save up for quality than to rush for sweet-looking deals.

Post Views: 12
Post Tags: #Audio Systems

Related Posts

  • Klipsch vs. Polk: Best Subwoofer
  • Infinity Kappa vs. Alpine Type-R (Which Would You Choose)
  • Tools for Testing Car Audio Systems (Explained)
  • How to Turn CCA to Ah/Amp Hours
  • 7 Ways to Optimize Your Trucks Performance

Best Audio Kit


Car Stereo Apple Carplay Double Din 7″ Full Touch HD

Top Product
Product Image 1:
Product Image 2:
Product Image 3:
Product Image 4:
Product Image 5:
Product Image 6:
Product Image 7:
Car Stereo Compatible with Apple Carplay, Double Din 7″ Full Touch HD Capacitive Screen – Mirror Link, Bluetooth, Backup Camera, Steering Wheel Controls, Subwoofer, USB/SD Port, AM/FM Car Radio
Check Latest Price on Amazon

Prices pulled from the Amazon Product Advertising API on:

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.


BOSS Audio System

Top Product
Product Image 1:
Product Image 2:
Product Image 3:
Product Image 4:
Product Image 5:
BOSS Audio Systems BV9370B Car Stereo – Double Din, Bluetooth Audio/Hands-Free Calling, 6.5 Inch Touchscreen LCD Monitor, MP3 Player, USB Port, SD Card Slot, AUX Input, AM/FM Radio Receiver, No CD/DVD
Check Latest Price on Amazon

Prices pulled from the Amazon Product Advertising API on:

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.


Pyle Single DIN Head Unit Receiver

Top Product
Product Image 1:
Product Image 2:
Product Image 3:
Product Image 4:
Product Image 5:
Product Image 6:
Product Image 7:
Product Image 8:
Pyle Single DIN Head Unit Receiver – In-Dash Car Stereo with 7” Multi-Color Touchscreen Display – Audio Video System with Bluetooth for Wireless Music Streaming & Hands-free Calling – PLTS78DUB, BLACK
Check Latest Price on Amazon

Prices pulled from the Amazon Product Advertising API on:

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.


Pioneer DMH-1500NEX Digital Media Receiver with 7″ WVGA 

Top Product
Product Image 1:
Product Image 2:
Product Image 3:
Product Image 4:
Product Image 5:
Pioneer DMH-1500NEX Digital Media Receiver with 7" WVGA Display, Apple CarPlay, Android Auto, Built in Bluetooth
Check Latest Price on Amazon

Prices pulled from the Amazon Product Advertising API on:

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.


Hieha Car Stereo Compatible with Apple Carplay and Android Auto

Our Choice
Product Image 1:
Product Image 2:
Product Image 3:
Product Image 4:
Product Image 5:
Product Image 6:
Product Image 7:
Hieha Car Stereo Compatible with Apple Carplay and Android Auto, 7 Inch Double Din Car Stereo with Bluetooth, Touch Screen Car Radios MP5 Player with A/V Input, Backup Camera, Mirror Link, SWC
Check Latest Price on Amazon

Prices pulled from the Amazon Product Advertising API on:

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.



Affiliate Disclosure

We are an affiliate. We hope you like our recommendations! Just so you know, we may collect a share of sales or other compensation from the links on this website. Thank you for using our links, it helps to grow our website.

  • Privacy Policy
  • Affiliate Disclosure
  • Contact Us
  • About Us
  • Cookie Policy
  • Privacy Statement

© 2023 MotorBeast Motorbeast.Org

Manage your privacy

To provide the best experiences, we and our partners use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us and our partners to process personal data such as browsing behavior or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.

Click below to consent to the above or make granular choices. Your choices will be applied to this site only. You can change your settings at any time, including withdrawing your consent, by using the toggles on the Cookie Policy, or by clicking on the manage consent button at the bottom of the screen.

Functional Always active
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
Preferences
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
Statistics
The technical storage or access that is used exclusively for statistical purposes. The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
Marketing
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
Statistics

Marketing

Features
Always active

Always active
Manage options Manage services Manage vendors Read more about these purposes
Manage options
{title} {title} {title}
Manage your privacy
To provide the best experiences, we use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Functional Always active
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
Preferences
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
Statistics
The technical storage or access that is used exclusively for statistical purposes. The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
Marketing
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
Manage options Manage services Manage vendors Read more about these purposes
Manage options
{title} {title} {title}
Scroll to top
  • Autos
  • Audio
  • Bikes
  • Batteries
  • Detailing
  • Oils
  • Parts
  • Questions
  • Roof Boxes
  • Scanners
Search