10 Best Car Amplifier Reviews (Sound Quality & High Bass)

Best Car Amplifier for Bass

An amplifier basically provides more power to the speakers, enabling them to achieve better sound quality and more bass. Most cars come with small, built-in amplifiers that are designed to power the small stock speakers.

As you modify your car’s sound system by increasing the number of speakers or replacing stock ones with bigger, more powerful speakers, the built-in amplifier simply can’t cope with this increased baggage. The only solution would be to install a powerful amplifier.

The toughest thing in this upgrade process is selecting the best car amplifier for bass. However, this article looks at 10 of the best amplifiers from which you can select the most suitable one to match your high-power speakers.

10 Best Car Amplifiers for Bass 

Product Name

Channel

Power Handling

RMS Power

Impedance

Rating

Current Price

1. Boss Audio System R1100M Car Amplifier

1

1100 W

825 W

2 - 4 Ohms

4.1

2. Rockford Fosgate R500X1D Prime Car Amplifier

1

500 W

500 W

2 - 4 Ohms

4.6

3. Pioneer GM-D8601 Car Amplifier with Wired Bass Boost Remover

1

1600 W

800 W

1 Ohm

4.5

4. Rockford Fosgate PBR300X4 Punch BRT Car Amplifier

4

300 W

300 W

4 Ohms

4.1

5. Alpine PDX-V9 Extreme Power Car Amplifier

5

900 W

900 W

2 Ohms

4.4

6. Kenwood 22154656 Compact Digital Car Amplifier

4

600 W

300 W

2 Ohms

4.5

7. Oneu Mini Amplifier Super Bass

2

40 W

40 W

4 - 8 Ohms

3.8

8. JL Audio JX1000/1D Monoblock Car Amplifier

1

1000 W

1000 W

2 - 4 Ohms

4.3

9. Pioneer GM-D9601 Car Amplifier

1

2400 W

1200 W

1 - 2 Ohms

3.9

10. Alpine MRV-M1200 Monoblock Car Amplifier

1

2400 W

1200 W

2 - 4 Ohms

4.2

#1. Boss Audio System R1100M Car Amplifier

Editor's Rating: (4.1 / 5)

Boss Audio System R1100M Car Amplifier
  • Channel: 1
  • Power handling: 1100 Watts
  • RMS power: 825 Watts
  • Impedance: 2 – 4 Ohms

Boss R1100M is a monoblock amplifier that has a peak power output of 1100 Watts at 2 Ohms or 550 Watts at 4 Ohms, which is directed into a single channel. This gives it the ability to run a high powered subwoofer effectively, by giving it enough power to produce deep bass.

Additionally, the amplifier has a variable low pass filter and a switchable bass boost for high-quality bass output.

The variable low pass filter enables it to deliver low frequencies to the subwoofer while the bass boost makes it possible to adjust the low bass for up to +18db. These two enable the subwoofer to produce a hearty baseline that will make your ears pop.

On its inner construction, this is a class A/B amplifier that features a MOSFET power supply, which enables it to conduct then switch off the current in an instant when required to during operations. This means that the amplifier operates at a good level of efficiency while causing minimal sound distortion.  

Pros:

  • 1100 Watts on a single channel enables it to properly power subwoofers.
  • Variable low pass filter and switchable bass boost make it boost base production
  • MOSFET power supply makes it very efficient

Cons:

  • Not the best quality product

#2. Rockford Fosgate R500X1D Prime Car Amplifier

Editor's Rating: (4.6 / 5)

Rockford Fosgate R500X1D Prime Car Amplifier
  • Channel: 1
  • Power handling: 500 Watts
  • RMS power: 500 Watts
  • Impedance: 2 – 4 Ohms

Rockford Fosgate R500X1D is the top-rated car amplifier for bass in this list and it is simple to see why. The product is a class D amplifier, which means that it is super-efficient, produces less heat and consumes less power as compared to class A/B amplifiers.

The R500X1D is a monoblock amplifier that powers a single channel to a subwoofer with 500 Watts RMS at 2 Ohms or with 300 Watts at 4 Ohms. It is fed using a MOSFET power supply that is very efficient and helps reduce sound distortion, enabling the subwoofer to receive clear sound signals from the amplifier.

You can even use the amplifier’s punch boost and low pass filter to get a high-quality bass that will vibrate your car to the sound of the beats. The product also includes a phase switch that will keep your subwoofer pumping along with other speakers in the car for maximum sound impact.

Pros:

  • Very energy efficient class D amplifier
  • MOSFET power supply makes it even more efficient and less distortive to sound
  • Phase switch for balancing the sound output from the speakers and sub

Cons:

  • 500 Watts is not powerful enough for big sound systems

#3. Pioneer GM-D8601 Car Amplifier with Wired Bass Boost Remover

Editor's Rating: (4.5 / 5)

Pioneer GM-D8601 Car Amplifier with Wired Bass Boost Remover
  • Channel: 1
  • Power handling: 1600 Watts
  • RMS power: 800 Watts
  • Impedance: 1 ohm

Pioneer GM-D8601 is also a highly rated car amplifier and comes with a 19-foot remote cable for wiring its remote bass boost control.

The product itself is quite small in size, measuring 13.4 × 10.9 × 4.9 inches. This enables it to fit comfortably on limited car spaces. However, this small size should not fool you into thinking that it is weak.

It is a monoblock amplifier that supplies the subwoofer with a peak power of 1600 Watts and 800 Watts RMS stable at 1 Ohm. This is made possible by its class D circuitry that maximizes on power output capabilities, yet it is more efficient and smaller than class A/B amplifiers.

Apart from this, it has a variable Low Pass Filter that enables you to adjust the audio frequency to any value between 40 Hz and 240 Hz. This makes it possible to select your preferred bass levels as well as select a frequency that is suitable for your sub’s features.

For protection, the amp features pioneer’s new Protection Control System that senses its internal temperatures and adjusts the input level accordingly so as to prevent circuit shutdown.

Pros:

  • Small in size
  • Remote cable option for remote bass boost control
  • Adjustable low pass filter.

Cons:

  • At times, the protection system keeps it from achieving maximum output

#4. Rockford Fosgate PBR300X4 Punch BRT Car Amplifier

Editor's Rating: (4.1 / 5)

Rockford Fosgate PBR300X4 Punch BRT Car Amplifier
  • Channel: 4
  • Power handling: 300 Watts
  • RMS power: 300 Watts
  • Impedance: 4 Ohms

As compared to the three monoblock amplifiers above, the Rockford Fosgate PBR300X4 is a 4 channel amplifier that delivers 75 Watts RMS at 4 Ohms to each channel. This totals to 300 Watts RMS, which means it is slightly less powerful.

However, having 4 channels means that it is ideal for connecting directly to speakers in a front and rear car audio system setting. This eliminates the need to buy an additional subwoofer, though you might not get enough bass with speakers alone.

To compensate for this, the product features a variable punch equalizer that can be set to Low-Pass for variable bass boosting, High-Pass for midbass and treble boosting and All-Pass for boosting both treble and bass frequencies.  

The amplifier has both low level and high-level inputs, including a variable 4-6 volt hi-level DC offset input, making it compatible with most car stereo systems. Additionally, it is quite small in size, measuring 1.53 × 4.25 × 6.75 inches, which makes it fit into small spaces on cars, RVs and even motorcycles.

Pros:

  • 4 channels make it suitable to use without a subwoofer
  • Low level and high-level inputs for maximum compatibility.
  • Variable punch equalizer for boosting bass and treble

Cons:

  • Low power output

#5. Alpine PDX-V9 Extreme Power Car Amplifier

Editor's Rating: (4.4 / 5)

Alpine PDX-V9 Extreme Power Car Amplifier
  • Channel: 5
  • Power handling: 900 Watts
  • RMS power: 900 Watts
  • Impedance: 2 Ohms

The Alpine PDX-V9 is quite an expensive car amplifier but has a sleek design that gives it an appealing look and makes it the best high-end car amplifier for bass.

It is designed with wide, flat top and bottom surfaces that make it stackable for more speaker and subwoofer connections. Additionally, all the controls are placed on the front for convenient access when stacked over each other.

Apart from looks, the amplifier features a 5 channel system that is split between four 100 Watt RMS channels for front and rear speakers and one 500 Watt RMS channel for a subwoofer. This totals to 900 Watts RMS, which is supplied stably at 2 Ohms.

On the inside, the amp has a class D circuitry that makes it more efficient at producing a higher power output as compared to the traditional class A/B amps. This results in better sound quality and a stronger bass.

Pros:

  • 4 speaker channels and a subchannel for balanced sound output
  • Stackable design makes it possible to use multiple amps in your car
  • Class D means it’s more efficient

Cons:

  • Expensive

#6. Kenwood 22154656 Compact Digital Car Amplifier

Editor's Rating: (4.5 / 5)

Kenwood 22154656 Compact Digital Car Amplifier
  • Channel: 4
  • Power handling: 600 Watts
  • RMS power: 300 Watts
  • Impedance: 2 - 4 Ohms

This Kenwood 22154656 is a small digital car amplifier that has a peak power output of 600 Watts. However, its operational power varies depending on the impedance. For a 4 ohm impedance, it has an RMS value of 200 Watts, which is split between its 4 channels, meaning each gets 50 Watts.

For a 2 ohm impedance, it can produce 300 Watts RMS, giving each channel 75 Watts. Two ports can also be bridged together of you want to power a subwoofer, meaning that you get two channels, each delivering 150 Watts.

The amplifier’s small design enables it to fit in the tightest of spaces while its printed circuit board is coated with a protective layer to shield its circuit parts from moisture and dampness.

This means that apart from cars, you can use it on boats, motorcycles, ATVs etc. because it requires a small installation space and cannot be damaged by water.

Construction wise, it has a class D circuitry, which makes it produce less heat while operating more efficiently as compared to class A/B amplifiers.   

Pros:

  • Coated printed circuit board makes it unsusceptible to water or dampness
  • 4 channels for 4 speaker connections
  • Small in size

Cons:

  • Not very powerful.

#7. Oneu Mini Amplifier Super Bass

Editor's Rating: (3.8 / 5)

Oneu Mini Amplifier Super Bass
  • Channel: 2
  • Power handling: 40 Watts
  • RMS power: 40 Watts
  • Impedance: 4 – 8 Ohms

As the name suggests, this is a mini car amplifier that has a low power output of 20 Watts per channel, meaning that it has a total output of 40 Watts over its dual channels. However, it is the most affordable product in our list and thus, the best budget car amplifier for bass.

On the bright side, the amplifier features RCA line inputs as well as a 3.5 mm audio jack port. This means that it is compatible with most factory stereos as well as TVs and DVDs. The 3.5 mm auxiliary port enables you to bypass a car stereo and connect directly to your phone to use its radio or mp3 player as you drive.

In terms of control, this amp features volume, bass and treble dial knobs that enable you to scroll through the 3 settings easily when selecting your preferred listening preferences.

It is a class A/B amplifier, which still performs efficiently and is way better than a class A amplifiers.

Pros:

  • Affordable
  • RCA and auxiliary inputs make it compatible with stereos and mobile devices
  • Adjustable bass, treble, and volume

Cons:

  • Low power output

#8. JL Audio JX1000/1D Monoblock Car Amplifier

Editor's Rating: (4.3 / 5)

JL Audio JX1000/1D Monoblock Car Amplifier
  • Channel: 1
  • Power handling: 1000 Watts
  • RMS power: 1000 Watts
  • Impedance: 2 – 4 Ohms

The JL Audio JX 1000/1D is a very powerful amplifier and has the price tag to match this. It can provide 1000 Watts RMS at 2 Ohms, 750 Watts at 3 Ohms and 500 Watts at 4 Ohms. This gives you enough power to make your subwoofer pump out deep, loud sound waves

Additionally, its bass is centered around 45 Hz but can be boosted by adjusting it to any value between 0 and +12 dB. This enables you to increase or decrease the loudness of the bass to suit your listening preferences.

It also has a frequency filter that makes it possible to disable some high frequencies from reaching the sub, enabling it to transmit purely low frequencies for better bass output.  

Many amplifiers produce clicking or popping sounds on startup, which can be very irritating. However, the JX1000/1D is silent and you will only know that it’s there by the high-quality sound that you get after startup.

Pros:

  • Powerful RMS output is ideal for powering a big sub
  • Adjustable bass boost.
  • Frequency filter for dealing with unwanted sound signals

Cons:

  • Sound quality is not that perfect

#9. Pioneer GM-D9601 Car Amplifier

Editor's Rating: (3.9 / 5)

Pioneer GM-D9601 Car Amplifier
  • Channel: 1
  • Power handling: 2400 Watts
  • RMS power: 1200 Watts
  • Impedance: 1 – 2 Ohms

Pioneer is a popular car audio brand and is known for making high-performance audio systems. That said, the features of the GM-D9601 do not disappoint.

The GM-D9601 is quite a powerful amplifier, with an RMS rating of 1200 Watts at 1 ohm and 800 Watts at 2 Ohms. This high RMS power output makes it one of the best monoblock car amplifiers because it delivers a crisp sound with a loud bang.

On top of this, it has a bass boost controlling function that enables you to adjust the loudness of the bass in its output. It also has a frequency filter that enables you to block out the unwanted high pitches for a pure bass output.

The product is a class D amplifier, meaning that it is very efficient in power consumption while maximizing power output. It directs all this power through a single channel, making it ideal for use with a big subwoofer for the best results.

Pros:

  • Very powerful output
  • Class D circuitry makes it very power efficient
  • Frequency filter gives you more bass

Cons:

  • Heats up quickly

#10. Alpine MRV-M1200 Monoblock Car Amplifier

Editor's Rating: (4.2 / 5)

Alpine MRV-M1200 Monoblock Car Amplifier
  • Channel: 1
  • Power handling: 2400 Watts
  • RMS power: 1200 Watts
  • Impedance: 2 – 4 Ohms

This car amplifier’s features are quite similar to the Pioneer GM-D9601 in terms of channels and power output but it is more expensive. Its RMS power rating stands at 1200 Watts, which it can stably hold at 2 Ohms. The amp can also maintain 600 Watts of power output at 4 Ohms.

The product is able to produce this much power because it is a class D (Digital) amplifier. This basically means that it consumes less power and transmits sound waves more efficiently as output power as compared to class A/B amplifiers.

In terms of input, the amplifier has both high level and RCA input channels and this makes it compatible with most car radios, including factory stereos. From these inputs, it delivers all its output power through a single channel, making it ideal for use with a powerful sub.  

Pros:

  • High RMS output.
  • Consumes less power.
  • Contains both high level and RCA input channels

Cons:

  • Quite expensive

How to Buy the Best Car Amplifier for Bass

How to Buy the Best Car Amplifier for Bass

#1. Type of Car Amplifier

Car amplifiers are usually differentiated by their class type. An amplifier class basically means the type of circuitry used to build it and its characteristics. There are 5 main amplifier classes: class A, B, A/B, D, and G/H.

  • Class A: Represents the simplest form of amplifiers, which consist of a single transistor in linear mode.
  • Class B: it’s more efficient than class A because it consists of a pair of transistors that work in a push-pull kind of configuration but have a higher chance of distortion due to this configuration.
  • Class A/B: A mix of A and B and their transistors work by conducting current when there is no input signal but when the line input signal is on, only one transistor conducts.
  • Class G/H: It is an improved version of A/B and works by controlling the power supply. If the high-power output is required, the transistors let in more power from the power supply.
  • Class G/H: The transistors in class D amplifiers are more of electronic switches as compared to providing linear gain in the other classes.

Considering the 2 most popular classes, class A/B amps have less distortion, meaning that they produce very high-quality sound.

However, class D amps are more efficient, and transmit almost 90% of the input power, making them very powerful and capable of working with high powered subs.   

#2. Size

Size is an important factor to consider because cars have limited spaces and thus, large amplifiers might be harder to fit. Ideally, a small but fully featured amp is the best one to buy because it is easier to install.

#3. Number of channels

Channels basically mean output ports to power external speakers or subs. A single channel amplifier is effective for powering a sub only but a multichannel amplifier is enough to power a sub and several speakers.

However, multichannel amps can be bridged in order to provide more power to a sub, effectively giving you more bass for your sound system.  

#4. Power

An amplifier’s power is measured by its peak power and RMS rating. However, the RMS rating matters more because it is the actual power that is delivered through the amplifier’s channels.

The higher the RMS rating, the more power that the amplifier will deliver to your sound system, which means that you get louder, undistorted audio.

If the amplifier has multiple channels, ensure that you check the RMS rating of each channel and compare it with your sub and speaker rating. It wouldn’t be a good idea to overpower your speakers with more wattage than they can handle.

Ideally, you should ensure that the minimum RMS value of the amp is 75% of your sub’s RMS Watts and the maximum is 150%. This way, your sound system will neither be overpowered nor underpowered.

Conclusion

As you can see, selecting the best car amplifier for sound quality is not such an easy task. There are very many defining features for each amplifier and factors to consider before settling down on one.

However, with this car amplifier review and buying guide, it will be a lot easier for you to power up your car’s audio system in the best way possible.

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