If you need the best amplifier for car, you most probably come in google or others search engine to buy an amplifier.

But, a crazy thing happens always in the search engine…

What is it..?

Search engine suggests you many sites to buy a product. This thing makes you confused that which sites you should go or not. Most of the sites do not provide a complete and perfect guide to buying your product.


Today I am gonna share with you a complete guide to buying the best amplifier for car.

I cover this post with factors that you must consider before buying an amplifier, plus I give here the review of 5 best amplifiers for car.

After reading this post, you can easily understand which amplifier is perfect for you.

So, let’s start….


Before gonna buy the best amplifier for your car, it’s better to know about some terms which relate with car amplifier.

In order to buy perfect amplifier which suits for your car, you should know about these. These terms include the class of amplifier, channel, bass boost, RMS power and more.

It’s very important to know what each term indicate.


I discuss below 4 factors about car amp, which are needed MUST consideration before buying any amplifier for your car sound system.


Class of amplifier is very important terms. It indicates structure and features of amplifier electronic circuit.

It’s related to characteristics of the amplifier, sound performance, and power dissipation.

There are 4 types of amplifier class.


  • Class A: Class A amplifier is one of the best and most desirable amplifiers. It provides best sound quality than others classes though it’s low signal distortion level. The problem of this class amplifier is high operating temperature. It happens because of its output the transistor does not turn off. It always has current running through them, even if there has no audio signal. For this reason, the amp gets heat up.


  • Class B: It’s invented with solutions of class A problem and It’s developed version of the class A. It’ has no efficiency and heating problem. Because It’ transistor turn off for half of every signal cycle. BTW it has tended sound distort at high frequencies.


  • Class AB: Class AB is the combination of Class A and B. It’s mostly similar to Class B amplifier. However, it’s also run current through output transistor but it’ allows much lower current than Class A amplifier.


  • Class D: This amplifier is the non-linear amplifier. You can control power distribution of output transistor by the switch. Comparatively class AB amplifier, it has tended to deliver higher distortion.

So, now I like to tell you pros and cons of amp classes to make you more clear about that.

Class A Highest frequency, sound reproduction Enegery inefficiency, high level operating temperature
Class B Low rate energy inefficiency, low temperature Tend to sound distortion at high frequencies.
Class AB Low operating temperature, Better sound frequency and sound reproduction, adequate energy saving Peak performance is lower than class A
Class D Save energy, low operating temperatures, low-frequency sound reproduction Humble high-frequency sound reproduction


if you ask me which amp class is better?

then my answer is Class AB is the better among them.

Its offer benefits both class A and B with maintaining quality of sound.


Bass boost is a circuitry. It boosts the bass sound, improves the sound reproduction.

Some of the amplifers keep this feature. So that, users could tune the bass boost by adjusting the center frequency. 


Channel is the audio signal of the amplifier.

You can connect single speaker/subwoofer with the single channel output or more channels output with more speaker/subwoofer.

So, if you have the plan to connect more speakers and subwoofers then you must go this amplifier wich have more channel.


RMS power is a number of continues power that amplifier produces. RMS power indicates the sound quality of the amplifier.

If Higher the RMS Power, the amp will produce louder and clean sound quality.

So, you must notice it when you buy any car amplifier.


Don’t get panic about these factors.

You don’t need to find out now amplifier with these considerations.

Because I gave you below review of 5 best amplifier for the car which already gives the high level of satisfaction to the customers. Before we go detail review I gave below top 3 amp among these 5 best amplifiers. 


No. of Channels 1 5 4
Classification AB D AB
Power Output (Watts) 4 ohms: 413 watts x 1 chan. / 2 ohms: 825 watts x 1 chan. 4 ohms:75 watts x 4 chan. / 2 ohms:100 watts x 4 chan. / Bridged 4 ohms:200 watts x 2 chan. / + 300 watts RMS x 1 at 2 ohms 4 ohms: 70 watts RMS x 4 chan. / 2 ohms: 100 watts RMS x 4 chan. / 4 ohms Bridged: 200 RMS x 2 channel / 900 W Max power
Warranty 1 Year 1 Year 1 Year



  • Classification: AB
  • Audio Channels: 1
  • Power Supply: MOSFET
  • MAX Power Rating:
    • 4 ohms: 550 watts x 1 chan.
    • 2 ohms: 1100 watts x 1 chan.
  • RMS Power Rating:
    • 4 ohms: 413 watts x 1 chan.
    • 2 ohms: 825 watts x 1 chan.
  • Frequency Response: 9 to 50000 Hz
  • Features:
    • Soft Turn-On Circuit
    • Remote Subwoofer Level Control.
  • Dimensions : 2.25″ x 9.125″ x 10.4375″
  • Warranty: 1 Year


I am beginning the reviews of 5 best amplifiers for the car with “BOSS Audio R1100M” car stereo amplifier.

It’s an A/B class amplifier and I said before what are the benefits of A/B class amp plus I recommended to buy this class.


If you want the best value added amplifier with low price then I can say this is the best amplifier for you. 

It comes with such a simple and lightweight design. You can connect your favorite subwoofer by one channel system. You can control subwoofer by remote. It can eliminate bass distortion and has ample power to produce great sound.


It will give you everything for installation including instructions. So that you can easily install it in your car. There is another good thing about this amp is, it has overheat protection system. That controls amp temperature. If amp gets over heated this system will automatically turn off it and don’t on it until it gets cool.

In addition,

if a speaker fails because of electric short then it’s protection circuit will cut off output and remain it until problem properly solve. These protection systems will give you peace of mind.

It MOSFET(Metal Oxide Semiconductor Field-Effect Transistor) is one of the features which need to must mention in this review. In today’s market, most of the good amplifier has this features.

This feature provides many advantages, one of the best advantage of this is – it produces high impedance with low current consumption.

This “BOSS Audio R1100M” is the best choice if you want a great amp with low cost.  However, I share here a short video review of this amplifier. You can check it.




  • Power Supply: MOSFET
  • Classification: D
  • Audio Channels: 1
  • Power Supply: MOSFET
  • RMS Power Rating:
    • 4 ohms: 300 watts x 1 chan.
    • 2 ohms: 500 watts x 1 chan.
  • Features:
    • Remote PLC (Punch Level Control)
    • Cast aluminum heatsink
    • Over current protection
    • Short circuit protection
    • High-level inputs
    • RCA pass through outputs
  • Frequency Response: 20 – 250 Hz +/- 1 dB
  • Signal to Noise Ration: >100 dB
  • Variable low-pass filter: 50-250 Hz, 12 dB/octave
  • Variable Bass Boost 0-12 dB at 45 Hz
  • 12dB/octave Butterworth crossover
  • Dimensions: 8.50″L x 6.80″W x 2.00″H
  • Warranty: 1 Year


Rockford Fosgate is reputed mobile audio manufacturer company. Car amplifier is their prime services products. Rockford Fosgate R500X1D is their one of the innovative, sleek-looking, powerful performance amplifier product.

This amplifier is another great product of Rockford Fosgate in the market with the best value. The sound quality it produces is much better than others amplifier around this price.

It also has MOSFET power supply, as I mentioned before in first product review it has some advantage. Its best advantage is, it does consume low current for operating amp and produce high impedance.

However, this amplifier has overheat protection plus short circuit protection. So that you don’t need to think about this. Its cast aluminum heatsink help to keep cool your amplifier.

Definitely, this amp will satisfy you, no doubt. The cost of this amp is really worth it. Here is the video review of this amplifier.




  • Classification: D
  • Audio Channels: 5
  • RMS Power Rating @14.4V: Channel 1 – 4
    • 4 ohms: 75 watts x 4 chan.
    • 2 ohms: 100 watts x 4 chan.
    • Bridged 4 ohms: 200 watts x 2 chan. +  300 watts RMS x 1 at 2 ohms
  • Features:
    • NextD™ switching amp technology
    • Optional wired remote for level control
    • Differential-Balanced Input Section
    • Advanced Rollback Protection
    • Speaker level inputs via RCA, JL Audio XD-CLRAIC2-SW required
    • Aluminum alloy heat-sink
    • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Frequency Response (Ch 1-4): 12 – 22,000 Hz
  • Frequency Response (Sub Ch): 10 – 1,000 Hz
  • Damping Factor @4ohms: >150 / 50 Hz
  • Signal to Noise Ration: >104 dB
  • Variable low& high pass filter: 50-500 Hz, 12 dB/octave, low-pass only on sub channel
  • Dimensions: 7.09″W x 10.23″L x 2.05″H
  • Warranty: 2 Year


XD700/5 – JL Audio is one of the best amplifier in the currently in the market. It gives you the high value of money. Customers who use this product they are highly satisfied. This potent amp is smallish, powerful; provide clean sound with unprecedented efficiency. It has lots of features. It’s most important features are NexD™ switching technology, advanced roll back protection, 3way protection circuitry.

PWM (Pulse Width Modulation) design approach of NexD™ switching technology provides consistent power to the modulator. So that you will get the clean sound without distortion by power supply fluctuation.

By using this amp you don’t need to worry about the annoying thermal shutdown. Because It’s Advanced thermal rollback protection eliminates thermal shutdown to keeps the music playing, even in most demanding conditions. When this situation arises amp thermal red led light will indicate it. After amp gets out from this condition this thermal red light indicates revert to its normal state.

Moreover, this amp has automatic turn on capability via signal sensing or DC-offer sensing. You can control amplifier level from the driver seat through HD-RLC remote level control. BTW, You have to buy this remote level control separately, it’s not included in amplifier cost. 

Well, I share below a video review of  JL AUDIO – XD700/5. I can check it for know better about that.




  • Classification: AB
  • Audio Channels: 4
  • Power Supply: MOSFET
  • Power Rating:
    • 4 ohms: 70 watts RMS x 4 chan.
    • 2 ohms: 100 watts RMS x 4 chan.
    • 4 ohms Bridged: 200 RMS x 2 channel
    • 900 W Max power
  • Features:
    • Signal Sensing Turn-on
    • Preamp Outputs
    • Cast Aluminum Heat Sink Design
    • 3-way protection circuitry (thermal, overload, and speaker short protection)
  • Frequency Response: 5 – 50,000 Hz
  • Signal to Noise Ration: 80 dBA
  • Selectable Bass Boost: 0 to +18 dB bass boost at 40Hz (B Ch only)
  • Variable high & low-pass filter: 50-200 Hz, 12 dB per octave
  • Dimensions: 13-3/16″W x 7-9/16″D x 2-3/16″H
  • Warranty: 1 Year


KENWOOD has reputation for providing performance, quality and value products. If you are searching a quality amplifier at the reasonable price, then I telling you it’s one of the best amplifiers in the market with reasonable price. You can setup it easily by their instructions. Its sound is so clean and loud. 

After installing it, you will feel good and realize that you bought an amplifier which provides you high value than money. 

As like above amplifier, I discuss before, it also has MOSFET switching power supply which provides great impedance with low current consumption. It heats sink design control your amplifier overheat temperature.

However, it’s AB Class amplifier and I recommended this class before. Because AB class provide best efficiency than others class and it comes with both A & B classes features.

Check out the video review of  KENWOOD KAC-8406:




  • Classification: AB
  • Audio Channels: 4
  • Power Supply: MOSFET
  • Power Rating:
    • 4 ohms: 40 watts RMS x 4 chan.
    • 2 ohms: 60 watts RMS x 4 chan.
    • 4 ohms Bridged: 125 RMS x 2 channel
  • Features:
    • Soft Start Turn-on
    • Cast aluminum alloy heatsink for extreme heat dissipation
    • Over current protection
    • Short circuit protection
    • Cast Aluminum Heat Sink Design
    • 2/4 channel input switch
    • LED light indicators for power (green) and protect (red).
  • Frequency Response: 20-20K Hz
  • Selectable Bass Boost: 0, 6, 12 dB at 45 Hz
  • Variable high &low-pass filter: 50-250 Hz, 12 dB/octave (front, rear)
  • Dimensions: 11-1/4″L x 6-3/4″W x 2″H
  • Warranty: 1 Year


Rockford Fosgate R250X4 Prime is the amplifier which offers lot’s of features with affordable price. It’ gives you pure clean and loud sound quality. Its prime features will make you highly satisfy. People who using this product they are very much happy with this amp.

If you want to buy another amplifier with above features, that will be very costly. But this amp is far low price than others.

It’s over current protection, short circuit protection and overheat protection gives you peace of mind. Its variable low pass and high pass filter make your speaker alive, loud and clear. Another great thing is, it also CEA – 2006 rated compliant amplifier.

However, Rockford Fosgate R250X4 Prime also an AB class amplifier which gives you more benefits with low current consumption. I was recommended before you that at the top of this post.

Check out the video review of this amplifier.



Thanks for reading this post. Hope you like this review of 5 best amplifiers for car.
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