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Choosing The Best Mono Amp For Your Car – Our Top 5 Picks Reviewed

Best Mono Amp For Your Car

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In today’s age of high tech cars and sound systems, an amplifier can literally make or break your car’s audio system.

Most of the time, car owners are not satisfied with the stock in-car entertainment.

The amp plays a major role in producing more power to put out great sound quality.

If you’re looking for an amplifier that will power all of the component speakers of your car, then you’d need a 4-channel or multi-channel amplifier. However, if you’re looking for a gadget that will really bring out the best in your subwoofer, then you need the best mono amp for your car.

Why a Subwoofer?

For many car owners, having a subwoofer on your car is a testament to your somewhat eccentric tastes. It is one thing to drive around town listening to your favorite tunes but it’s clearly a different matter to be looking for new and better ways to enhance the optimum quality of the sound you’re listening to at all levels.

Your car’s ordinary speakers can play bass. However, standard car speakers are generally not sturdy enough to manage or handle the lower register of bass at certain desired levels.

This can lead to acoustic distortions providing you not with a pleasant listening experience but a splitting headache.

Your car’s audio system will also struggle to accommodate the increased volume and the higher bass levels.

A subwoofer takes the bass load off your standard car speakers.

It also helps protect your smaller speakers from blowing out so you won’t have to worry about replacing your entire component speaker system. Sufficient power to your subwoofer will also eliminate popping noises or even distorted acoustics.

As such, to power your subwoofer, you will need an amplifier specifically designed for it.

Why Do You Need a Mono Amp?

An amplifier is a very important component for any sound system.

Its main function is to boost the electric signals that are sent by the head unit to the speakers to provide you with an absolutely more pleasant music listening experience. To deliver power to your subwoofer, you will need a mono amp, also called monoblock or 1-channel amplifier.

Mono amps produce single power signals that are ideal for the low-frequency acoustic characteristics of subwoofers.

Because mono amps are more stable in the maintenance of resistance to electric currents especially when power demands are increased, you can actually wire two subwoofers to a single monoblock to give you an even richer acoustic experience.

What are the Advantages of a Mono Amp?

First and foremost, a mono amp is generally stable to 2 ohms. As such, it can deliver efficient power to two subwoofers, each of which can have a rating of up to 4 ohms.

If the speakers in your car are wired in parallel, it is even possible and entirely safe to connect two 4-ohm subwoofers without risking damage to your speakers.


Mono amps are compatible with speakers that have ohm ratings in multiples of 2, such as 4, 6, or 8, and so on.

Mono amps are also very cost-effective.

Since they are not as electronically sophisticated as a 4-channel or a multi-channel amp, they don’t cost as much. You can save more money by buying a less expensive mono amp to drive your subwoofer while your multi-channel amp will provide the stereo signals needed by your other speakers.

This creates a truly fantastic, cleaner, and definitely richer-sounding music.

Matching the Right Mono Amp to Your Subwoofer

In choosing the right mono amp for your car audio system, particularly your subwoofer, it is important to match the specifications of your subwoofer to the capabilities of the mono amplifier.

As a general rule, you need to look for a mono amp that can put out 75 percent to 150 percent of the total RMS rating of your subwoofer and at an impedance load that your subwoofers can be effectively wired.

For instance, if you have 2 subwoofers each with a rating of 350 watts RMS, then a mono amp that has an amp putting of 525 to 1,050 watts RMS should suffice.

Next, you’ll factor the impedance load. If you have a 2 DVC 4-ohm subwoofer, then it can be wired to form a 1-ohm or a 4-ohm system. As such, you will need a mono amp that can deliver 525 to 1,050 watts RMS at either 1-ohm or 4-ohms.

The lower values on your watts RMS will require greater values in your load impedance. For instance, you can choose 650 watts RMS at 4 ohms or 1,000 watts RMS at 1 ohm.

Now, you’re ready to choose the best mono amp for your car.

Our 5 Best Mono Amps for Your Car

1. R250X1 Prime 1-Channel Mono Block Amplifier by Rockford Fosgate

Rockford Fosgate R250X1 | Best Mono Amp-5be9f7baac9c4

What We Like

  • Ease of installation
  • Versatility
  • Relatively inexpensive

If you want to enhance the deep bass of your favorite tunes using your existing car sound system setup, then the answer is Rockford Fosgate’s R250X1 Prime.

It is designed primarily by Rockford to work beautifully and seamlessly with your factory-installed sound system. And if it works this well with stock audio, what more with aftermarket systems where you can really take into consideration all other parameters?

The R250X1 Prime is rated at 150 watts RMS at 4 ohms or 250 watts RMS at 2 ohms. It also comes with the patented Punch EQ built into the R250X1 Prime’s board. It comes with a high grade cast-aluminum heatsink, engineered to help manage the heat that is generated by the system.


2. Alpine MRV-M500 Mono V-Power Digital Amplifier

Alpine MRV-M500 | Best Mono Amp-5be9f7bc334f7

What We Like

  • True power in a small package
  • Ability to connect it to a remote bass knob

If your subwoofer requires more power to bring out the best in your car’s audio system, then you might want to consider the MRV-M500 X-Power Amplifier from Alpine.

Its compact design should never be confused for a wimp as the X-Power comes with a very powerful output rated at 650 watts RMS at 4 ohms or 1,100 watts RMS at 2 ohms to really deliver the kind of bass that your subwoofers have been designed to deliver.

It boasts of a highly efficient digital circuit design plus a global modulation topology that responds seamlessly via adaptive feedback. Its unique variable bass EQ can help fine-tune how low and deep you want your bass to go.


3. GM-D8601 Class D Mono Amplifier with Wired Bass Boost Remote by Pioneer

Pioneer GM-D8601 | Best Mono Amp-5be9f7bdb745f

What We Like

  • Stays cool even when pushed hard
  • Can be connected using speaker level inputs
  • Good clean power

Need a really sexy and super clean sounds from your car’s audio setup?

How about considering Pioneer’s GM-D8601 Class D Amplifier with Wired Bass Boost Remote?

Rated at 300 watts RMS at 4 ohms, 500 watts RMS at 2 ohms, 800 watts RMS at 1 ohm, or a max of 1,600 watts, the Pioneer GM-D8601 can provide your sound system with the depth of bass that it really needs without necessarily jeopardizing the entire system.


4. JX1000/1D 1000 Watt RMS Monoblock Class D Car Amplifier by JL Audio

JL Audio JX1000 | Best Mono Amp-5be9f7bf24284

What We Like

  • Soft start feature
  • Long-term durability

If you have some really serious subs that need some serious powering, then JL Audio’s JX1000/1D 1000 Watts RMS Monoblock Class D Car Amplifier is highly recommended.

With a maximum power output of 1,000 watts RMS at 2 ohms and a minimum of 500 watts RMS at 4 ohms, the JX1000/1D is one beast that deserves to be placed among the greatest of subwoofers. Otherwise, you will just be underutilizing the full character of this mono amp.

The JX1000/1D features a soft start mechanism so the system won’t pop or click needlessly once you power on the system.


5. KAC-9106D 2000 Watt Monoblock Class D Car Audio Power Amplifier by Kenwood

Kenwood KAC9106D | Best Mono Amp-5be9f7c09faa1

What We Like

  • Pure power
  • Neat appearance
  • Versatile

If you require a really powerful subwoofer amp that will make others look like sissies, then get the Kenwood KAC-9106D Mono with a maximum output of 2,000 watts and 1,000 watts RMS. The KAC-9106D also features a built-in bass boost control and a built-in variable high-pass and low-pass filter.

The lowest impedance it can play is 2 ohms.

The KAC-9106D also features a heat sink design made of cast aluminum so thermal energy can be effectively managed even at maximum power.


Wrap Up​

These are the 5 best mono amps you can get for your car. It’s important to remember that these amplifiers are not restricted for use with subwoofers.

You just have to check the requirements of your speakers, subwoofer or or not. Always ask car audio experts or technicians on the proper setup of the sound system you prefer.

With the right knowledge, setup and components, you can be sure that your car audio will be able to produce the sound that you have always been looking for.