10 Best Mini Car Amplifiers 2021

Making a journey enjoyable while driving with the best mini car amplifiers is incredible, especially for those who love to listen to music at high pitch. Usually, it happens when the car sound system doesn’t produce good sound at high voltage. So you have to look forward to amplifiers as only an amplifier upsurges the voltage, power, or current of a signal.
 
When it comes to car amplifiers, they boost the higher voltage of the driving loudspeakers from lower audio signals to higherHowever, at the same time, numerous competing brands offer a little exceptional.
 
Hence, it becomes arduous to choose the right one when you have many options, so we took the 10 best mini car amplifiers 2021 for you by keeping this in mind
 
All of these have premium features with an extra bass performance system. So, keep sticking with this review, it consists of a in-depth reviews with pros, cons, and buying guide for making the buying process easier.

1. Pioneer GM-A3702 Amplifier

  • Max power: 500-watts
  • Color: Black/Red
  • Number of channels: 2
  • Input Level: Low and High

Performance

Pioneer GM-A3702 is designed to enhance your car audio experience, and it makes its position in the top-picked products. It’s a thriller mini car amplifier that provides you limitless functionality with its premium features. It defeated its previous models with its excellent sound quality; you can’t beat its performance for a medium-sized subwoofer.
 
It selects and senses input signals automatically through speaker level or RCA. As on turning the receiver, the amplifier turns on automatically. Even you don’t need RCA output for connecting the receiver, and it turns on in no time. It offers support for 2 and 4 Ohm speakers and produces up to 500-watts of power on connecting.

Design

This space-efficient, compactly designed amplifier is easily fixable in car cabins or underneath the seats. Its smoothly look in black and red color makes it more classier, and you can even fit it into your car dashboard. Plus, you may turn your environment into a high-quality sound experience with its heat sink aluminum body.

Other Features

Moreover, it comes with 500-watts max power which is better than its previous model GM-A3602, which comes with 400-watts max power. Pioneer is finding the best ways to make amplifier technology perfect, and this is proved with its GM-A3702 model.
Pros
  • Easy to install
  • Max power of 500-watts
  • Signal sensing automatically
  • Input circuit for balanced isolator
  • Compact design
Cons
  • Internal fusing isn’t good

2. BOSS Audio R1100M

  • Max power: 1100-watts
  • Color: Black
  • Number of channels: 1
  • Input Level: Low and High

Performance

Boss Audio R1100M delivers magnificently with MOSFET supply and 1100W max power. It takes your vehicle’s sound system to a next level by customizing the sound with Bass Boost, Variable Low Pass Crossover, and Remote Subwoofer Control.
 
Besides, it competed excellently in performance due to holding both high and low inputs level than its R2400D and R3400D models that have only low inputs level.

Design

It is designed in a stunningly beautiful way withholding the cool blue logo of Boss on its front. All control knobs and functions are present on its side, making it easy to stand or place anywhere in the car. It is planned in such an enormous Class-A/B that improves power output, efficiency, and sound quality by minimizing distortion.

Other Features

Assuredly, this mini car amplifier runs subwoofers and gives them the power they need to perform. Besides, it consists of numerous other features like, install installation, long-term warranty, safe functionality that make it superior to many of its other competitors. All this provides you an endless limit of ultimate enjoyment choice.
Pros
  • Variable gain control
  • Subwoofer level control
  • 2 Ohm stable
  • Backlit Illuminated Logo
  • Switchable bass boost
Cons
  • Experts complained about the power being lower than advertised

3. Kenwood KAC-M1814

  • Max power: 400-watts
  • Color: Silver
  • Number of channels: 4
  • Input Level: Low and High

Performance

The performance of KAC-M1814 isn’t beatable with the second product of our top-listed. With a total max power of 400-watts, it pumps up the audio with 45 watts RMS per channel. This 4-channel mini car amplifier has digital technology and 2 Ohms loading capacity which makes it more likable than its previous KAC-M1824BT Class-D model.

Design

Kenwood, a brand to be well-known for its highly reputed and reliable products, has launched its KAC-M1814 4-Channel amplifier for powering your mini cars with a boosted sound system. It has a conformal coating that protects the PCB from eroding and lets vibration resistance
 
Its plastic-covered connector enables the water to remain outside and prevents the amplifier from dust. Thanks to its separate division of Power-amp and Preamp sections design that lessens the radiation noise. You have an aluminum heat sink design making it ideal for bikes and other vehicles.

Other Features

Moreover, for easy integration, it comes with speaker-level input and automatic signal sensing turn-on feature. It has a speaker Impedance of 4Ω, input Impedance of 10k ohm, and frequency response from 50Hz to 200Hz. 
 
All these combine to produce clear soundtracks without any distortion. Lastly, to save power supply, the power source is MOS-FET switching with an additional 1m RCA cable.
Pros
  • Automatic turn-on signal sensing
  • 4-channel amplifier
  • Digital technology
  • Conformal coating circuit
  • Plastic cover
Cons
  • RMS power of channels isn’t too good

4. Earthquake Sound Mini D1000.4

  • Max power: 1000-watts
  • Color: Black
  • Number of channels: 4
  • Input Level: Low and High

Performance

This Earthquake Sound Mini is the performance-leading model due to the hybrid power chip technology with discrete transistor resiliency. Its switch mode is one of the effective power supply systems on the planet. In case of excessive input, the system sound doesn’t get harsh due to its clip suppression technology
 
Moreover, its stellar efficiency negates the fan need, so noise-free operation occurs. You may select low or high pass crossovers with their variable crossover frequency.

Design

It delivers powerful sound in a compact design and stands in the efficient class of amplifiers. The total dimension of this mini amplifier are 2 inches in length and 7 inches in width.
 
You may install it under your car seat or behind the backseat due to its compactness. It blazes its trail with its 4-channel full-range property. Thanks to its micropower chip technology keeps it cool. Besides, its sophisticated design is beyond the competition with its competitor Minim D100.2 Model.

Other Features

This super Class D amplifier comes with a peak power of 1000 watts which is outstanding. For power handling, it included protection and management LED. 
 
Also, different control knobs for bass adjustments, RCA inputs from 0.2V to 5V RMS, holder for easy installation, and a mini-fuse block of platinum-plated comes within its package.
Pros
  • Digital Class D
  • Maximum power of 1000 watts
  • Frequency response of 20kHz
  • >100dB signal to noise ratio
  • Robust and compact design
Cons
  • An additional adaptor needed
  • Not total noise resistant

5. Pyle PLMRA120 Hydra Marine Amplifier

  • Max power: 240-watts
  • Color: Silver
  • Number of channels: 4
  • Input Level: Low and High

Performance

Pyle’s PLMRA120 is a 4-channel marine amplifier that lets high-quality sound production. It improves the sound quality with its RCA stereo inputs that provide you high-level terminal inputs when it comes to performance. With IC power of 120W and dual adjustable controls, you may use it fearlessly. This gold plated amplifier proved to be waterproof to operate freely in the marine environment.

Design

This uniquely designed amplifier powers up the speaker and is compatible with several head units. This compact and space saver design fits in the backseat or under the seat easily. Plus, a silver color body with black lining gives it a great look. Manufacturing with aluminum alloy that is made from a heavy-duty material makes it a robust amplifier.

Other Features

Both high and low-level inputs takes the sound clarity to the next level. Ready for pairing with four or 8-ohm. With the fine-tune amplitude range, the Pyle PLMRA120 operates stunningly outstanding with an excellent sound effect.
Pros
  • Easy to maintain
  • Space saver design
  • High-quality sound production
  • Lightweight and waterproof
Cons
  • Low RMS power
  • Not weather resistant

6. JBL Stage A6004

  • Max power: 560 watts
  • Color: Black
  • Number of channels: 4
  • Input Level: High

Performance

JBL lets you experience a satisfying and clarified sound with a vast array of amplifiers, subwoofers, and loudspeakers. JBL Stage A6004 is the standout mini amplifier that comes with all premium features and accessories. 
 
For excellent sound quality, this 4-channel amplifier is the best alternative in the market of the previous model A6004 2-channel amplifier. It performed very well and made the ride more exciting with the 0.2V to 5V input sensitivity. 
 
Moreover, with the hookup feature, you may be connected with multiple speakers simultaneously. It consists of preamp RCA outputs that let daisy chain amps.

Design

It consists of compact and full on-board reliability mode. Withholding switchable input level control, it delivers more fine-tuning to the car audio enthusiast. Additionally, it has a three-way protection circuitry that prevents overloading. The aluminum alloy heat-sink heavy-duty body of this best mini car amplifier makes it the most reliable and durable product.

Other Features

This UK authorized amplifier comes with one year of the manufacturer’s warranty, including a wired remote for bass level control. Plus, it has a green LED power and red indicators for protection. This four-channel amplifier is very easy to use. The package included split lock washers, owner’s manual, MOSFET power supply, and gauge power.
Pros
  • Easy to install
  • It comes with variable bass
  • Lightweight and compact
  • Wired and wireless connectivity
  • High bass power
Cons
  • Lacks low input level
  • Not weather resistant

7. Kenwood KAC-M1804

  • Max power: 400 watts
  • Color: Silver
  • Number of channels: 4
  • Input Level: Line level

Performance

This compact Kenwood KAC-M1804 amplifier sounds classically great with easy stereo hooking. The volume outputted by this amp is 3xs better than the earlier reviewed third product KAC-M1814 4-Channel. However, this one lacks controls for input sensitivity. 
 
The 2-front and 4-rear powering speakers, each require only 40-watts of power for producing flawless sound quality. Plus, this Class D digital amplifier for improved bass performance holds 4 ohms of RMS power rating, 40 to 45 watts for each channel with a maximum power output of 400-watts. Additionally, 90dB signal to noise ratio and 20 to 20K hertz frequency is also present.

Design

It is small and stylish in design; you may fit it to the specific limited installation places or areas. Music sounds more clearly and dynamically with advanced bass performance by this amplifier.
 
It is specially designed with conformal coated board and heat-sinking aluminum extruded body for marine applications. It is too tiny in size that it can be fitted anywhere easily, which makes it more fascinating.

Other Features

Furthermore, this stunning amplifier comes with a complete package of all required accessories, so no need to worry about additional costs. Even the inputs level of the speaker allows easy and fast integration with your factory radio, so you don’t need a separate line-out adaptor. Lastly, with the 10k ohm of input impedance, it operates extraordinary well.
Pros
  • Quick installation
  • Compact size
  • Provides exceptional sound quality
  • Digital amplifier
Cons
  • Doesn’t have input sensitivity controls
  • Overheats at times

8. Skar Audio SK-M4004D

  • Max power: 400 watts
  • Color: Black
  • Number of channels: 4
  • Input Level: High

Performance

This Skar Audio amplifier consists of high-level input connections where RCA connections don’t exist, making it unique and better than the previous model. This top-notch amplifier performed great applications with an easy installation process. 
 
Moreover, it comes with a 4-way protection circuitry as DC, voltage, thermal, and speaker; all these increase the bass performance. It performed extraordinary well with eight gauge power usage, ground input terminals, and 10 to 40k Hertz frequency response. 140-watts RMS for each channel lets you experience clear sound freely.

Design

This is an ultra-compact, Class D full-range, 4-channel mini car amplifier. An efficient Class D design and power supply of MOSFET is highly reliable, powerful, and versatile.
 
Besides, it makes for limited spaces where you have to be joy on the peak level. A SKAR printed over its front side, makes it look more attractive and unique.

Other Features

Input connections are of high-level, making it an ideal choice for vehicles. Music becomes super clear no matters what you hear loudly during a long-drive journey. Lastly, the 40 amps of fuse rating and 85 dB of sensitivity make it is an all-rounder amplifier.
Pros
  • Class D design
  • Ultra-thin
  • Lightweight
  • Easy to install
  • Ground input terminals
Cons
  • Makes engine noise
  • Underpowered

9. JBL GX-A604

  • Max power: 400 watts
  • Color: Black
  • Number of channels: 4
  • Input Level: High and low

Performance

It makes your ride full of excitement with the amplifier’s advanced functioning and performing capability. You couldn’t beat its performance with any other Class D subwoofer due to the input sensing signals via RCA and different speakers. Besides, thanks to its pre and power-amp sections that minimize noise radiation perfectly.

Design

JBL GX-A604 is more advanced and has high-quality build material than the JBL Stage A6004 4-channel amplifier. It has a switchable bass boost and electronic crossover networks that make it more recommended among music lovers. Aluminum alloy heavy-duty heat-sink body making it reliable.

Other Features

It makes the sound clarity up the level and ready to pair with 2 to 4-ohm. Remote connecting option, fine-tuning amplitude range, provides you excellent sound effect. Plus, it comes with a complete accessories package and control knobs for easy installation, bass adjustments, and mini-fuse block.
Pros
  • Easy to install
  • Switchable bass boost
  • Lightweight
Cons
  • Bass quality is not too good
  • Produces distortion at times

10. Pyle PFMRA440BB

  • Max power: 400 watts
  • Color: Silver
  • Number of channels: 4
  • Input Level: High

Performance

Pyle PFMRA440BB is for those who are looking for a amplifier that provides significantly improved bass with high-quality sound. This amplifier comes with fine-tuning of the bass amplitude range, and it operates independently with its bass signal output.
 
You may control its subwoofer output separately. With its adjustable treble bass EQ, you can adjust the style effect depending on your needs for a high-quality sound. Besides, with the 400-watt RMS and 10 to 40K Hz frequency, it delivers unrivaled sound to its users that are even much higher and clearer.

Design

It is sleekly designed and is compact, so you can fit it to even the minor areas. With its sound purity and minimum distortion, you have boundless enjoyment on any trip or journey
 
The 4-channel bridgeable design, weatherproof and waterproof body make it preferable than the competitors. Its stereo design with high-fidelity provides you perfect audio outputs. Moreover, its marine-grade construction makes it capable of using in the marine environment effectively.
 

Other Features

It included a Class D circuit, IP-41 marine grade rating, and RCA audio connector for easy and fast installation. You can also save MP3 audio files with its auxiliary input feature in a memory card and later on playback those through an SD card reader or USB
 
You may pair it with a computer, MP3, tablet, or external smartphone for streaming music. Moreover, it is a universal compatible amplifier with various head units and an RCA stereo input for the marine environment.
Pros
  • Marine-grade construction
  • Waterproof
  • Universal compatible
  • Short protection
  • Line-level inputs
  • LED digital screen
Cons
  • Difficult to troubleshoot
  • Low RMS Power
  • Sometimes it stops working when the car is moving

Best Mini Car Amplifiers: Buying Guide

Assuredly, it isn’t easy to buy or find the best amplifiers for your vehicle, several factors matter are necessary to consider before buying. We did in-depth research and compiled a few factors to resolve this issue. This list contains power rating, car amplifier type, channel number, size of an amplifier, and noise specifications; before buying, overview it.

Channels
There are a total of six types of car amplifiers that you may find in different stores; each Class is categorized on its amp power measuring capability. Single and multi-channel amplifiers are available in the market; it’s up to you which one to choose according to your bass expectations. Let’s have a look at some channels.
Mono Channel
The Mono channel type is also known as the Class D amplifier because it produces better and more unmistakable sound than its dual-channel amp version. Mainly, this type contains multiple transistors and an on and off power system. No doubt, these are simple but performed well in vehicles.
Dual Channel
This type offers up to two speakers and power up subwoofers and makes their sound outstanding. You may use them in your hatchback cars and any other vehicle. It’s too small, so it is effortless to fit underneath the car seats.
Three Channel
A three-channel car amplifier contains two various types of circuitry in a single amplifier. It perfectly fits into the vehicles with almost no extra space demands.
Four Channel
With this amplifier, you may power full speakers set easily, as it supports powerful speakers, so it needs a large space room. Therefore, you have to put it in the car trunk where it provides you bashing performance.
Five Channel
It is just the same as the previous one; however, adding a subwoofer is an adding feature. For blasting the party, this type is best suitable for cars.
Six Channel
This type is rare in the market, as it demands ample space. So we preferred 2-Channel and 4-Channel primarily by keeping space issues in mind. And that’s why we only reviewed 2 and 4-Channel mini car amplifiers.
Another factor to consider is the type bases on the class of an amplifier. There are 3 classes for mini car amplifiers.
Class A
It’s the most common class. It has a linear model, so it runs with one transistor. Also, A class amplifiers are primarily available and budget-friendly.
Class B
Amplifiers consisting of two transistors belong to class B. This class is better than the Class A amplifiers in terms of transistors numbers, giving you a better sound experience. However, with this, their good distorted chances raise due to crossing over.
Class D
Class-D amplifiers are primarily reliable and more durable amplifiers than all other competitive classes. However, it holds a single transistor and has a linear operating system.
Power
Power indirectly relates to the bass of an amplifier, and a powerful amplifier provides a heart-touching bass to its users. Moreover, an amplifier has an RMS rating and a peak power that determines the total capacity of that particular amplifier
 
Mostly, recommended and preferred RMS rating is 50-watts for each channel. Although, you can choose it on the base of amplifier size. For instance, a 50-watts RMS for each channel is enough if you have a small sports car, hatchback, or a small-cab pickup. This RMS is enough for overcoming road noises and it enhances clarity to the music. 
 
We prefer you to look for those amplifiers which have a top 50-watts RMS rating at least. We’ve mentioned the power in each review thus get the one suitable for you. 
 
Take a step up and choose 75-watts RMS for larger vehicles or more volume. Furthermore, for more eye-popping volume and the more significant bass impact, you should go for a 100-watts RMS per channel.
Sound Quality
Adding an amplifier or bass system in your car means you don’t compromise on sound while listening to the music of your choice. Sound is a significant factor to consider while buying car amplifiers.
 
Usually, the dual-channel amplifiers produce distortion, so the sound deteriorates. However, a multi-channel like a 4-channel amplifier is the best solution to overcome this distortion problem.
Size
As you are looking for a car, then definitely size matters a lot. Cars do not have enough space for an additional device. So you have to choose only those amplifiers which easily fit underneath the car seats. Although, you can choose a large size if you have considerable space in your car.
Wiring
Another essential factor to consider is wiring. Oxygen-free copper cables are ideal and most recommended for this purpose. These cables offer a smooth power supply flow from your car battery. 
 
Moreover, the specifications of a wire gauge is another vital parameter in providing smooth power flow. Using eight gauge wires for up to 500 watts RMS rating power is incredibly best. Besides, you may use four gauge wires for 500-watts to 1000-watts RMS. However, for 1000-watts to 1500-watts, RMS 2 gauge wires are the best to choose.
 
Warranty
Everyone look for a product with warranty as investing a considerable amount in your favorite hobby also matters greatly. Therefore, be sure that what you are looking to buy is a warranty product. In case of authorization, a product doesn’t work well, you can verify it from the seller. 
 
If you couldn’t find them, then locate the dealer and call the company. Or if it isn’t authorized, then you should think twice before making a purchase. However, almost all amplifiers listed above have warranty, so you don’t need to worry about it.
Conclusion

It isn’t easy to recommend a single product becuase the suitable amplifier depends only on your speakers needs. We recommended the researched top reputable brands for you; all of them offer a warranty and several stunning features.

FAQs

Is the mini car amp any good?

Mini-car amps are a game-changer and powerful enough for providing cabin-filling sound from the car speakers. Plus, their small and compactness make them easy to fit in any car without demanding additional spaces. Therefore, you may install them on the dashboard of your vehicle or underneath the seat of your vehicle.

Which car amplifier is best?

Our entire are best car amplifiers. Yet, the Pioneer GM-A3702 is our top-picked due to having stunning bass performance.

What amp do I need to run four speakers and a sub?

A 4-Channel amplifier is best, and you should buy one for running four speakers and one subwoofer. It powers maximum to a subwoofer and full-range speakers.

What is an excellent cheap car amplifier?

Earthquake Sound Mini D1000.4 is a mini car Class-D amplifier consisting of 4-channel, and it’s eternally the cheap and good amplifier.

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