🥇Best Car Amplifier Reviews 2021 | In-Depth Buying Guide

Best Car Amplifier Reviews

Cars sometimes appear incomplete without music. There really is quite nothing like zipping through the countryside with your kind of music playing. A companion, a mood setter, sound bytes to soothe your nerves, call it what you may, but music systems can make your day. Here is our list of the five of the top models to help you pick the best car amplifier for your ride.

What Is A Bluetooth Car Amplifier?

Amplifier for cars boosts signals from either a CD player, radio station, your phone or any auxiliary input device to give adequate output to speakers that will then fill the car with high fidelity, entertaining music. A Bluetooth amp for cars is one that relies on blue tooth connectivity and pairing to play music or audio from a phone call.

Low Price Car Audio Amplifier Ever Made [ Detailed Reviews ]

  • JL AudioJX1000
  • Dimensions : 14 x 9.5 x 4 inches
  • Item Weight : 4.41 pounds
  • Alpine MRX-M110
  • Dimensions : 13 x 9.1 x 4.3 inches
  • Item Weight : 7.05 pounds
  • JL AudioXD700/5
  • Dimensions : 13.1 x 8.7 x 3.8 inches
  • Item Weight : 6 pounds
  • AlpinePDX-V9
  • Dimensions : 13 x 9.1 x 4.3 inches
  • Item Weight : 7.05 pounds
  • Rockford Fosgate R250X1
  • Dimensions : 14.5 x 10.3 x 4.3 inches
  • Item Weight : 6.35 pounds

Our Reviews For The Top Rated Car Amplifiers - Small Car Amp

JL Audio Mono Car Amplifier

Product Specifications:

Lets first give the specs an once over.

  • JX Series Monoblock Amplifier 500 rms @ 4ohms 750 rms

  • Unregulated PWM switching type

  • Variable Bass Boost

  • Soft start turn-on prevents clicking and popping

  • Dimensions: 11″L x 7-3/4″W x 2″H


  • Pricing – Priced reasonably. This is a good buy, considering that it feeds the subs and the speakers pretty neatly.

  • Bass Boost – Bass is super strong, and will make your music a lot enjoyable.

  • Sound Quality – The sound quality is impressive and adds to the pleasure of playing out music.

  • Build And Size – This is one compact unit that will fit in perfectly without disturbing aesthetics


  • Audio car amplifier superior bass boost
  • Impressive sound quality
  • Powerful, packs in a good punch for its small size.


  • More tuning options would have made this a lot better

The Leader

The impressive sound quality and the bass boost make this a popular choice, and ours too. Check how much you can save, buying the JL Audio Mono Car Amplifier on Amazon.

Alpine Compact Car Amplifier For Bass

Product Specifications:

  • CEA-2006 Amplifier Ratings: 650W RMS X 1

  • 1100W RMS X 1 [2 Ohm @ 14.4V ≤ 1% THD + N]

  • S/N: 90dB (ref: 1W Into 4 Ohm)

  • Continuously Adjustable Gain Control

  • Product Dimensions13 x 9.1 x 4.3 inches


  • Pricing – This will set you back. If you have the budget for it, then yes, go for it. It has features that match its price tag.

  • Bass Boost – More of a little monster when it comes to bass, this will give a few loose parts in your vehicle a good shake.

  • Sound Quality – Compact car amplifiers crystal clear, helps to bring out the sharp strains of music with great clarity.

  • Build And Size – Not just compact, but really cute. It is adorable.


  • Bass is a monster, you may not really get a chance to go all the way.
  • Clear, brings music to life.
  • Announces your presence before you turn in the driveway


  • May drain your battery faster than you would like.

Close Second

Pricing dents its rating, but just about. Check how much you can save, buying the Alpine Compact Car Amplifier on Amazon

JL Audio Car Amp For Subwoofer

Product Specifications:

  • Frequency Response (Front and Rear Channels): 12 Hz – 22 kHz (+0, -1dB)

  • Frequency Response (Subwoofer Channel): 10 Hz – 1 kHz (+0, -1dB)

  • 6000k Pure White LED Driving lights.

  • Damping Factor (Subwoofer Channel): >150 @ 4 ohms per ch./ 50 Hz

  • Dimensions (L x W x H): 10.23 x 7.09 x 2.05 in.

  • 12 dB/Octave high pass filter


  • Pricing – It’s a 5 channel model, so the price tag should not cloud decisions.

  • Bass Boost – Amazing boost, gives a concert-like feel within the confines of a car.

  • Sound Quality – Handles the highs and the lows of music strains with an incredibly crisp quality.

  • Build And Size – Small enough, it has, at times been tucked beneath seats by users.


  • Car audio amp can play extended sessions without any dip in quality
  • Powerful, can fill the car and beyond with pulsating music effortlessly.
  • Distortion free, makes music enjoyable


  • Needs to be paired with only the right speakers

Rallying Nicely At Number Three

Definitely one of the good buys, it is worth the 400 bucks. Check how much you can save, buying the JL Audio Car Amp on Amazon

Alpine Digital Car Amplifier

Product Specifications:

  • Alpine PDX-V9 5 Channel Power Density Digital Amplifier

  • CEA-2006 Power Rating: 100W RMS x 4 + 500W RMS x 1

  • Stackable installation design with front-panel controls.

  • Quick-connect speaker connectors.

  • Product dimensions 13 x 9.1 x 4.3 inches


  • Pricing – For a product of this quality, It should not come in the way of a good experience.

  • Bass Boost – Is bound to surpass expectations pounding on the speakers.

  • Sound Quality – Will never disappoint an audiophile, amazing quality.

  • Build And Size – Sleek, and almost tiny, it is a wonderful design concept.


  • Sleek and compact.
  • Simple setting up and dismantling.
  • Supports speakers and a sub effortlessly.


  • Mounting options would have made it a lot more versatile

Number 4 Could Be Just A Number Here

Definitely a fabulous product, its just the price that pegs it at number four. Check how much you can save, buying the Alpine Digital Car Amplifier on Amazon

Rockford Fosgate Low Budget Car Amps

Product Specifications:

  • 150 watts RMS x 1 at 4 ohms (250 watts RMS x 1 at 2 ohms)

  • Works with factory installed & aftermarket source units

  • Onboard 12dB/octave LP/HP/AP crossover.

  • On-board Punch EQ with +18dB boost at 45Hz.

  • Cast Aluminum Heatsink with Stealth top mounted control panel.


  • Pricing – This is the surprise package, that can give you value at low budgets.

  • Bass Boost – It kicks in with great bass, you will feel it everywhere

  • Sound Quality – Does the job, you will never feel compromised or unsatisfied

  • Build And Size – Impressive build and cute size, typical Fosgate design.


  • Small, packs a surprising punch
  • Great compatibility lends confidence while selecting.
  • Durable, it carries the legendary Fosgate reliability.


  • Do not expect the world out of it.

A Good Choice At Number Five

The dark horse in the reckoning, this amplifier is a good buy for those who are looking at a budget acquisition Check how much you can save, buying the Rockford Fosgate Car Amps on Amazon.

What to Look For In 4 OR 5 Channel Amp For Car Speakers ?

Before you choose your pick from the best Bluetooth car amplifier, you need to understand how to choose the right one. Here is the lowdown on picking the right one.

  • Channel – Ideally the best 5 channel amp would be a good option because a 5 channel car amp would permit you to hook up five speakers plus the subs, which will make music a lot more enjoyable. If you have a small car, then look for the best 4 channel one. Which is the best small car amplifier.

  • Power – A kicker 1000 watt model or a pioneer 900-watt one will be a good choice but you need to be clear how much power output your car can afford to handle especially if you also have other accessories insalled like LED Lightbars. Look for automotive amps with better peak power.

  • Sound Quality – Regardless of your choice of the smallest car amplifier or 1000 watt RMS models, ensure that there are wide frequency response and low deviation.


Will an amp affect my car battery?

If all the wiring is done properly, then there won't be any danger to killing the car battery. The new technology car amplifiers takes very less energy from the battery. So you just need to make sure that your system is installed correctly and professionally.

How much air space do i need for my amplifier?

If you want to install an amplifier under your car seats, then you need to check the amount of heat it produces. Usually, most of the amplifiers are compact in size, however, you can go for Class D amplifiers as they produce the lowest amount of heat.

Do I need to use an extra fuse on my battery?

It is always recommended to have an extra fuse on the battery. This is because in case anything fails, a fuse can take a punch to protect any damage to the vehicle. Mostly car amplifiers have one fuse that only protects the amplifier. So it is better to have an extra fuse for proper wiring throughout the vehicle.

Can I Connect the Radio with an Amplifier?

Yes you can! Car amplifiers are able to connect to radio, subwoofers as well as speakers. So you can easily connect it.

How Does the Car Amplifier Work?

Amplifiers usually transform the sound into current or waves through the wire to the speakers or subwoofers. There is a pin attached to the ends of the connector cable. It increase the bass and sound or the speakers from low to high and makes the sound clear. It works on AC current system.