How To Choose The Best Amplifier For My Car

Find Astonishing Tricks!

What makes the car journey most entertaining yet exciting? Of course, the good music without distortion and the echo. But, at the same time, we all know that factory car stereos usually lack the power to drive speakers to their full potential which can create an impact on our entertainment. 

That’s where we need a car amplifier. But, among many options, it is quite challenging to choose the best amplifier for your car audio system. 

Fear not! Deep dive into this guide and know the key factors to consider while choosing the best amplifier for your vehicle. 

What are Car Amplifiers?

A car amplifier works as a power booster for your car speakers and takes the low-power signal from your head unit and amplifies it to create a richer, louder sound.

Having a car amplifier calls for various benefits, such as:


Enhanced clarity and depth of audio sound across the entire frequency spectrum.


You can increase the volume without distortion for an immersive audible experience.


A subwoofer amplifier is crucial for that impactful, deep bass.

How To Choose An Amplifier For Subwoofer?

Top 4 Tips!

Are you confused with question “how to choose the best amplifier for my car audio?” Don’t worry! We’ve got you covered. The first step is to figure out the power requirements which is highly dependent on your speakers. Check the significant pointers:


Check RMS Wattage:

Checking the RMS (Root Mean Square) wattage rating of your speakers is a must. By doing so, you will indicate their power handling capacity and how consistent the speakers are.

Hence, choose amplifiers with an RMS output per channel that meets or exceeds this number (typically 75% to 150% of the speaker’s RMS).


Best Subwoofer Considerations:

If you must know, the best amplifier for your car subwoofer is those which can maintain their power usage and output management. Moreover, their applications require more consistent power. Check here for more information:

Recommended RMS Wattage: 50-200 watts RMS

Recommended RMS Wattage: 50-200 watts RMS

Recommended RMS Wattage:200-500 watts RMS

Recommended RMS Wattage: 1000+ watts RMS

Recommended RMS Wattage:200-300 watts RMS


Recommended Number of Channels

What is Channel Amplifier? Each channel is an energy source used to power one subwoofer or speaker. Therefore, the decision about incorporating the numbers of amplifier channels is depended on how many speakers do you plan to power?

Notably, the good car amplifiers come in configurations like 2-channel, 4-channel, and mono (for subwoofers). It is imperative for you to choose an amplifier with enough channels to make your speakers work profoundly.


Match Amplifier’s Impedance:

Impedance refers to the electrical resistance of your speakers. So, if you want your speakers produce flawless sound, it is imperative to match the car amplifier’s impedance to your speakers’ impedance for optimal performance.

Plus, it ensures smooth power transfer for clean audio and by keeping the impedance in sync, you can protect your valuable audio components.

Other than power, there are several features that can impact your listening experience. Check them below:

  • Consider the available space in your car for the amplifier. Why? Because some amplifiers are discreet and compact, while others offer more power.
  • The Signal-to-Noise ratio indicates the amount of desired audio signal compared to background noise. Hence, a higher signal-to-noise ratio translates to less-distorted and cleaner sound.
  • Crossover Controls allow you to fine-tune the frequencies directed to specific speakers.
  • Opt for established and well-known car audio brands that are known for quality and reliable products so that you can have a peace of mind with respect to usage and product’s warranty.

A Note For Diligent Amplifier Installation:

Undoubtedly, this guide provides you the right path to choose the best amplifier for car subwoofer. Still, installation is crucial for safety and optimal performance. Thus. we always recommend to consult a car audio installer to get proper wiring done and avoid overloading your car’s electrical system.

Cosmos Audio Installed Amplifier

Wrapping Up!

Well, choosing the perfect car amplifier is an investment in your car audio enjoyment. By considering the factors briefed above, you can select the ideal amp to power your sound system.

Still have questions?

“Discover your dream sound system with our award-winning team! Let us guide you through the journey. Visit our showroom today!