Best Mono Amplifiers Reviews

Sound is very important to some people. The way you listen to music in your car sometimes matters more than it should. But then again, who am I to say that sound is of little importance? However, cars don’t come with sophisticated audio systems already installed. When you buy a car, the sound is somewhat basic. There is nothing special about it. Few cars have advanced audio systems, and they are usually very expensive.

Boss Audio R1100M Riot 1100 Watt
1100 W MAX Power @ 2 Ohm x 1 Channel, 550 W MAX Power @ 4 Ohm x 1 Channel
High and Low Level Inputs
Variable Low Pass Crossover, Variable Bass Boost
Rockford Fosgate R250X1 Prime 1-Channel Mono Block Amplifier
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
Planet Audio AC1500.1M Anarchy Stable Monoblock Amplifier
1500 W MAX Power, 1 Channel 1125 W X 1 RMS @ 2 ohm 563 W X 1 RMS @ 4 ohm
Monoblock Class A/B, MOSFET Power Supply
High and Low Level Inputs

Fortunately for people who value the quality of the sound in their vehicles have the option of installing amplifiers aftermarket. The manufacturers make it easy to install them after you bought the car. And the most common is the mono amplifier.

What is a mono amplifier?

To put it simply, a mono amplifier is designed to deliver power to a single channel speaker. Most of the times people use it on subwoofers. The amp produces a single power signalthat goes with the low frequency of a subwoofer. Since it can transmit a single audio signal, this is not suitable for stereo music.

A mono amplifier is stable enough to maintain the electrical resistance when you increase the power (which is measured in ohms), so you can wire two subwoofers to one mono amplifier. That will improve the performance.

How does it work?

The way an amplifier works is quite simple. All it does is boosting the electric signals, increasing power.To paint a clearer picture, a mono amp will take the low-power output from an auxiliary connection, CD player, or even radio, and it will enhance the power of the signal enough to power speakers or subwoofers. The reason why people install an amplifier aftermarket is that an external one is a lot better than the one built in the car stereo.

Why do people install an external amplifier?

There are two reasons why people choose to install an amplifier in their car. First is upgrading the power of the speakers. The built-in audio system already has an amplifier, but usually, it’s not enough. That is why people who value this aspect choose to install an externalamp. The scenario goes something like this. Audiophiles like to install powerful speakers aftermarket, but once you do that, you cannot work with the factory amplifier. You need a more powerful one. And that is how you end up installing a new, better amplifier as well.

The second reason is the sound quality. An amplifier will improve that as well. Built-inamplifiers arealwaysimproving. Car manufacturers become more and more aware of the importance of sound. However, an external amplifier will always provide a betterresponse and sensitivity. There will be no interference and noise from other electric components. That will eliminate distortion and any other noise. You know that horrible sound that you hear when you turn up the volume to the maximum? You can only hear it when you don’t have an external amplifier. Well, if you install one, that sound will no longer exist.

A mono amplifier is added for a single reason. Mono means one and is used to describe the umber of channels the amplifier has. A mono amp has a single channel, so it can power a single speaker. Usually, a mono amplifier is used to power a subwoofer.

How to install a car amplifier?

You have two options when it comes to installing an amp. You eithergo and have a professional do it, or you can do it yourself. If you go for the first option, you will spend more money, but you know that the job is well done, and you don’t need to worry it will break. You receive a warranty, and if it breaks, you can have it fixed free of charge. However, if you do it yourself, you spend less money, but there is no guarantee everything will go as planned.

Before doing anything, keep in mind that electricity is involved, so make sure to take all safety precautions. What you need is a screwdriver (or multiple), a wire cutter, electrical connectors, a utility knife, masking tape, and sandpaper. If the manual of the amp says you need something else, then follow the instructions. Also, keep the car’s manual close because you need to know how to remove different parts.

Once you decide to get started, disconnect the battery from the system. You don’t want to electrocute yourself or damage the system. Then consider where you want to place the amplifier. The most common placement is on the back of a subwoofer enclosure or under the front passenger seat. The point is to put the amp in a place where you don’t need many wire runs. After you position the amp, make sure that you prepare all the wires for the connections you need to make. Follow the instructions in the manual, but if you want an easier way out, buy an installation kit. It comes with all the wires you need, which simplifies the whole process.

After you make all the preparations, you are ready to make the connection itself. I said it once, but I ill say it again. Make sure that you disconnect the battery. Then attach the fused end of the power wire to the + terminal of the battery. You will do that using an o-ring connector. Continue by running the wire through the car’s firewall to the amp. Just ensure that the cable is nowhere near the speaker wire. Otherwise, there will be electrical interference.

Not all system are alike, so the most important thing is to follow all the instructions carefully. If you take all the precautions and follow all the steps, you cannot fail.

Buying a mono amplifier

The secret to buying a mono amplifier is knowing what you need. You must first establish what you want to install. Do you need speakers or subwoofers? How much are you willing to spend? Things like that need to be determined before making a purchase.

There are other things to consider as well. Some people prefer particular brands. It’s true that some manufacturers have more experience when it comes to sound quality. Price is another factor that you need to pay attention to. Not everyone can afford to spend 200$ on a mono amplifier. The truth is that you can find high-quality mono amps for a lot less. All you need to do is search carefully and take your mind of brands.

Another thing I recommend is doing some research about particular products. If you buy the amp online, there is no way of telling which one works and which one doesn’t. However, if you read some reviews, you can learn everything there is to know about a certain amp from people who dealt with it first hand. It’s your best chance of spending your money wisely.

What are the best mono amplifiers?

The answer is not the same for everyone. It depends on what you are looking for. However, if you don’t know where to start, here are three suggestions that may be of help. They are all high-quality, and a lot of people are more than satisfied with their purchase. Take a look!

Boss Audio R1100M Riot 1100 Watt

Click here to buy on Amazon

Before purchasing this product, make sure to choose the precise specifications. Set the year of the car, the model, and you need to check the fit. The unit measures 9.1 inches in depth, 10.4 inches in width, and 2.3 inches in height. You can place it anywhere you like, as long as the wires don’t cross with the speaker’s wires. You don’t want electrical interferences.

This ampcomes with two resistance options. The power differs accordingly. It can deliver an 1100 watts power at a resistance of 2 ohms and a 550 power at 4 ohms. It has both high and low-level inputs. The Boss amplifier features variable low-pass crossover, and you can also control the bass boost. The subwoofer remote will make controlling the unit a lot easier and convenient.

The MOSFET (metal oxide semiconductor field-effect transistors) ensures a non-conduction for an efficient output, and the class A/B amplifier features a linear circuit that improves the quality of sound and power output. Also, there is no distortion whatsoever. The sound is clear as crystal. Another feature that proves to be very useful is the‘short protection.’ The unit has an automatic shut-off option that protects the amp if and when it gets too hot or if the speakers fail and cause a short. Click here to read more reviews and buy on Amazon.

Rockford Fosgate R250X1 Prime 1-Channel Mono Block Amplifier

Click here to buy on Amazon

The Rockford unit is ideal for installing a subwoofer (or multiple) in the trunk of your car. Some people even installed two units for maximum performance, but that is advised for more advanced audio systems. A common system requires only a single unit.

This mono amplifier has a power of 150 watts RMS at a resistance of 1 ohm, and 250 watts RMS at 2 ohms. It works both with factory installed source units and aftermarket additions. It comes with an onboard 12dB/octave LP/HP/AP crossover and a built-in Punch EQ + 18 dB boost at 45Hz. All those features improve the quality of sound, and the bass is strong and clear at the same time. There are no distortions, no unwanted and chaotic vibrations, and most importantly, the overall experience is excellent.

The Rockford amplifier has a study construction. The heatsink is made of cast aluminum and has a stealth top mounted control panel. The installation is easy and requires minimum skills. The remote control comes in handy and makes the entire experience convenient. You can install the amp wherever you feel comfortable with. Click here to read more reviews and buy on Amazon.

Planet Audio AC1500.1M Anarchy Stable Monoblock Amplifier

Click here to buy on Amazon

If you choose Planet Audio, you have two excellent choices. You can either go for the 1500-watt unit or the 2500-watt. It depends on what you want to do with it. You will receive a stable, high-quality unit that will not let you down. You even have the option of ordering the unit together with the installation kit, which is to be advised. It will be a lot easier to install than without.

The class A/B monoblock provides excellent quality of sound and power output. The MOSFET power supply ensures durability, a quick response, and sensitivity. There is no distortion, no interference, and the sound is clear as crystal. You can choose to install one or two subwoofers. The unit will handle them both with ease.

The power for the 1500-watt unit is 1500 watts at a resistance of two ohms, and the RMS is 1125 watts at two ohms. It also has high and low-level inputs, variable low-pass crossover, and you can control the bass boost. You will be able to control the subwoofer with a remote control as well. The unit is easy to install, especially if you order the installation kit as well. Other features include shortprotection, switchable input sensitivity, and blue illumination. You will be extremely satisfied with the results, just like thousands of people have been. Click here to read more reviews and buy on Amazon.

My recommendation

From what I’ve read online, buyers are more than happy with their choices, which leads me to believe that my recommendation should be in accordance to everyone’s preference. But that is impossible, so I am going to choose the one I think it’s the best. In my honest opinion, I think the Boss Audio R1100M Riot 1100 Watt is one of the best mono amplifiers. It has all the right features, it’s easy to install, and the price-quality ratio is ideal. That is why I strongly recommend it.


I am one of those people who like to listen to music in their cars. I believe it’s more important than some people give it credit for. After all, music is the only means of entertainment while you are on the road, and it’s the only thing that can keep you up while driving at night. An amplifier will help you improve the quality of the audio system you have, and one of the choices above will do an excellent job. Click here to buy on Amazon

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