We are reader supported. When you purchase products through links on this page, we may earn an affiliate commission. Learn More.

Best Cheap Monoblock Amps Reviewed (Affordable but Top-Notch Picks)

Every car audio enthusiast dreams of upgrading their car audio system for better bass. But that often becomes unattainable because of budget constraints and a lack of trust in cheaper products.

NOT MORE. Our team has hunted the best cheap monoblock amps of the year to help you upgrade your car audio. We understand your worries, and we have organized the review so that you can know the offerings of each product. Also, it will give you an idea of what to expect from cheap car amplifiers.

First, for your ease of navigation, start with a quick glimpse at our brief overview.

Let's have a quick look at our featured product list and know what they are best for.


Why Best?


Check Price

1. BOSS R1100M Riot Series

Best Overall

Looking for a durable mono amp to power your subwoofer? This MOSFET-powered budget amplifier is compact for installation and has many variable controls like gain, bass, and crossover. (Jump to Review)


Runner-Up Pick

Even with a maximum output of 2000 watts, it does not produce heat, making it perfect for heavy use. You can definitely go wild with this one. (Jump to Review)

3. Skar Audio RP-350.1D

for Performance

Known for its bass EQ switch and variable controls, the MOSFET-powered class D amp is all you need to empower your subwoofers. (Jump to Review)

4. Blaupunkt AMP3000D

for Max Output

Whether you are cruising down the highway or stuck in traffic, the 3000-watt max power amp is your ticket to an immersive audio experience. (Jump to Review)

5. Taramps Bass 400

for Bass

If you are searching for the perfect bass car amplifier that combines power, compactness, and affordability, then it is your treasure. It can also fit in your pocket. (Jump to Review)

6. Planet Audio AC1500.1M

for higher stable ohm

This amplifier is not just an electronic component; it's a gateway to an immersive sound experience that transforms every drive into an exhilarating adventure, keeping customization at its heart. (Jump to Review)

7. Blaupunkt 1501

for money

With over 90 years of Blaupunkt's expertise in audio technology, this versatile and efficient amplifier is designed to bring your music to life, making every drive an immersive experience. (Jump to Review)

Detailed Reviews of 7 Best Cheap/Affordable Mono Amps

Let us talk about the details of each handpicked amplifier. Rather than delving into the technicalities, we have presented each product's key features, benefits, and drawbacks.

1. BOSS R1100M Riot Series Monoblock Amplifier - Best Overall

BOSS R1100M Riot Series Mono Car Amplifier
Technical Specs:
  • Amp Class: AB
  • Impedance: 2-8 ohm
  • Total Power Output: 1100 watts
  • Peak Power at 2 ohm (stable): 1x1100 Watts
  • RMS Power at 2 ohms (stable): 1x825 Watts
  • Peak Power at 4 ohms: 1x550 Watts
  • RMS Power at 4 ohms: 1x413 Watts
  • RCA Inputs: 2 Channel
  • Signal-Noise Ratio: 102 dB
  • Dimension: 9.13 x 10.44 x 2.25 inches

As a budget-conscious audiophile, if you are looking for the best affordable mono amp that offers durability and easy installation, then you should consider the Boss Audio R1100M Riot Series Class AB Amplifier. This amplifier stands out for its functionality, variable gain control, and build quality.

The BOSS amp has a remote subwoofer control, ensuring your comfort and convenience. It has an in-built MOSFET power supply feature for efficient and stable performance. Many customer reviews have vouched for the amplifier, stating it creates a calm and soothing sound, making it a must-have upgrade for those who can't afford high-end amps.

Its total harmonic distortion is less than 0.05%, and it has a signal-noise ratio of 102 dB. It takes your security into its own hands by automatically shutting down when the amplifier is too hot.
It performs its best at 2 ohms with more power and volume. The frequency provides a broad spectrum (9 Hz to 50 kHz) of sound and lets you customize your musical journey with variable low-pass filter, gain control, bass boost, etc.

Those with high power needs may find the amplifier lacking, as we noticed discrepancies between the marketed and actual output. Our research has also found out that the amp is infamous for overheating. At higher levels, some users reported a loss of sound clarity, and there have been instances of inconsistent performance, with the amp occasionally going into protection mode.

These limitations did not affect the amp’s market reputation, as users have been praising its superior sound quality, making it a significant upgrade for any standard car audio system. Its value for money is a big selling point, as it offers excellent performance at an affordable price.

2. AUDIOZERONE ZE1000.1 2000W Mono Amp - Runner-Up

AUDIOZERONE ZE1000.1 2000W Mono Amp
Technical Specs:
  • Amp Class: D
  • Minimum Impedance: 1 ohm
  • Total Power Output: 2000 watts
  • RMS Power at 1 ohm (stable): 1x1000 Watts
  • RMS Power at 2 ohms: 1x650 Watts
  • RMS Power at 4 ohms: 1x400 Watts
  • Dimension (LxWxH): 6.9x11.0x2.0 inches 

The Audiozerone ZE1000.1 comes second in our well-researched list of best budget mono amp. Despite its low budget, when it comes to performance, it has outcompeted many of its competitors with positive customer feedback.

The main reason for its popularity is its heat management system, which allows it to remain cool under heavy loads. Its user-friendly design includes controls for high input, gain, phase, remote, bass boost, subsonic, and a low pass filter, making it easy to customize your audio experience. The manufacturer took extra care of the seamless installment process as the packaging comes with high pass wiring, a remote knob, velcro tape for mounting, and an Allen wrench set. 

Though the product has created mass market acceptance, it fails to gain the trust of new potential customers because of its limited online presence. Having no dedicated customer support adds to the problem. Also, we found the product to be easily vulnerable to rugged prolonged use.

These minor drawbacks do not affect its performance as new and new car audio enthusiasts trust this mono amp. Its user-friendliness and mass acceptance make it a go-to product for anyone seeking an affordable upgrade.

3. Skar Audio RP-350.1D Mono Amplifier - Best for Performance

Skar Audio RP-350.1D Mono Amplifier
Technical Specs:
  • Amp Class: D
  • RMS Power at 1 ohm (stable): 1x350 Watts
  • Peak Power at 1 ohm (stable): 1x375 Watts
  • RMS Power at 2 ohms: 1x250 Watts
  • RMS Power at 4 ohms: 1x150 Watts
  • Signal-Noise Ratio: 85 dB
  • Dimension (LxWxH): 6.23x6.3x2.2 inches 

Are you in the market for an amplifier that offers both affordability and top-notch performance for your car audio system? After a hectic scrutinization, we have deemed the Skar Audio RP-350.1D Monoblock Amplifier as one of the the best-performing amps. Renowned for its exceptional balance of cost and quality, this amplifier is a game-changer for budget-conscious car audio enthusiasts.

The subwoofer amp is a testament to modern engineering that does not compromise with its performance. Its 1-ohm stability provides robust and crystal-clear sound without having to sacrifice the power output. Its compact size makes it perfect for people who want impressive audio without the bulk body.

The high-speed MOSFET power supply and 4-way protection circuitry ensure raw power, reliability, and longevity. This amplifier also features a versatile range of power outputs, low pass, and subsonic filters, and a frequency response that caters to all your audio needs.

Ease of installation and added conveniences like a subwoofer control knob and remote are just a few of the user-friendly features that make this amplifier a popular choice.

In our market research, we found that some users have reported overheating issues and inconsistencies in power delivery. Again, you may have to overlook durability for this one. However, the problems are not dominant in most cases. We will advise you to purchase it from an authorized seller to avoid any potential future errors.

4. Blaupunkt AMP3000D Monoblock Amp - Best for Max Output

Blaupunkt AMP3000D Monoblock Amp
Technical Specs:
  • Amp Class: D
  • Total Power Output: 3000 watts
  • RMS Power at 1 ohms: 1x800 Watts
  • RMS power at 2 ohms: 1x630 Watts
  • RMS Power at 4 ohms: 1x380 Watts
  • RCA Inputs: 2 Channel
  • Total Harmonic Distortion: 0.05%
  • Signal-Noise Ratio: 96 dB
  • Dimension (LxWxH): 11.0x2.2x7.4 inches 

When it comes to enhancing your car's audio system, the Blaupunkt 3000D monoblock amplifier stands out as a compelling choice for audiophiles who desire both power and affordability. This amplifier brilliantly integrates the efficiency of Class D technology with the robust power needed to bring your music to life.

Imagine an amplifier that not only fits seamlessly into various car models but also delivers a punchy and clear sound. The Blaupunkt 3000D does just that, offering impressive RMS power outputs that ensure your subwoofers are driven with vigor and precision.

The user-friendly nature sets the mono-amp apart. You may not be an audio expert but you can easily enjoy yourself with the amp. With features like gain control and a bass knob, you have the power to fine-tune your music to match your preferences. The high-pass and low-pass crossovers are the cherries on top, allowing for detailed frequency tuning that brings out the best in any genre of music.

While it excels in many areas, some users have reported overheating after prolonged use. Also, our researchers noticed some mismatches between the actual and labelled power ratings. Though it depends on preference, some users found it to be bulkier than usual. But the issues are nothing to worry about, as all the inexpensive amps come with some sort of limitations. 

While it is advisable to know the potential drawbacks, it is up to you to make the final choice. We always suggest testing the amp yourself before you make the final purchase.

5. Taramps Bass 400 1 Channel Amp – Best for Bass

Taramps Bass 400 1 Channel Amp
Technical Specs:
  • Amp Class: D
  • Minimum Output Impedance: 2 ohm
  • Peak Power at 2 ohms: 1x400 Watts
  • Peak Power at 4 ohms: 1x214 Watts
  • Signal-Noise Ratio: 90 dB
  • Dimension (WxHxD): 5.28" x 1.57" x 5.43"

Lack of installation space? Look no further than the TarAmps Bass 400. Typically priced under $80, it’s a budget-friendly option that doesn’t skimp on quality. This makes it an attractive choice for those who want to upgrade their car audio while facing installment space issues.

The most prominent benefit of the TarAmps Bass 400 is its incredibly small size. Measuring just about 5.4 inches by 5.3 inches and with a height of 1.6 inches, it’s comparable to an iPhone 12 Pro Max in size. Its small footprint doesn't compromise its performance, making it a top pick for those who value space efficiency.

Though it is small in size, it does not compromise on its sound quality. It's rated at 214 watts at 4 ohms or 400 watts at 2 ohms, and our research has found that it can slightly exceed these ratings. These ratings prove that it can easily complement subwoofers, especially at 2 ohms.

Efficiency is key in amplifiers, and the Bass 400 doesn't disappoint with an efficiency rate of 82% between 8 volts and 16 volts. Even more impressive is its ability to run cool. It manages heat excellently, ensuring longevity and consistent performance even after extended use – a crucial aspect for any car audio enthusiast.

Because of the small body, the terminal is also tiny in size, requiring special attention. The built quality of the terminals and the knobs could have been more robust. These are inevitable cons for an amp of this stature. 

Its power output and size make it ideal for specific applications, but it's essential to weigh in on the potential concerns about sound quality and build. If you’re looking for a space-saving, cost-effective amplifier with decent bass performance, the TarAmps Bass 400 could be just what you need.

6. Planet Audio AC1500.1M Car Amp – Best for Higher Stable Ohm

Planet Audio AC1500.1M Car Amp
Technical Specs:
  • Amp Class: AB
  • Speaker Impedance: 2-8 ohm
  • Total Power Output: 1500 watts
  • Peak Power at 2 ohm (stable): 1x1500 Watts
  • RMS Power at 2 ohm (stable): 1x1125 Watts
  • Peak Power at 4 ohms: 1x700 Watts
  • RMS Power at 4 ohms: 1x563 Watts
  • RCA Inputs: 2 Channel
  • Signal-Noise Ratio: 102 dB
  • Dimension (LxWxH): 10.0x10.0x2.4 inches 

Our current pick is undoubtedly one of the best cheap mono amps on the market, with a rating of 4.3. We present you the powerhouse of sound, the Planet Audio AC1500.1M Monoblock Amplifier, to embark on an auditory journey. 

What makes the amp different is its sleek black body and its blue illuminated logo design. But it's the technology inside that truly sets it apart. The Class A/B topology and MOSFET power supply are the heart of this amplifier, ensuring efficient power handling and superior sound clarity. This amplifier packs a punch with up to 1500 Watts max power, delivering crisp and powerful sound.

With its ample customization options, the amp lets you rule your music as you like. The Variable Low Pass Crossover and Bass Boost lets you adjust the frequencies and bass to suit your taste and feel the difference in every beat. You also get a Remote Subwoofer Control that provides the convenience of adjusting the bass level right from your fingertips.

The amp’s ability to operate comfortably at 2 Ohms means more power and volume for your speakers or subwoofer. With high and low-level Inputs, this amplifier seamlessly integrates into your car's existing system, whether it's a factory setup or a customized configuration.

We found that in many instances at higher frequencies, the amp was liable for creating distortion. Several complaints were lodged about the amp being too hot during excessive use. Our market research concluded that the amp is suitable for moderate usage and may not be sufficient for larger subwoofers or demanding audio setups.

The real-world performance of the amp is as impressive as its specifications. Testing reveals that at 4 ohms and 40Hz, it efficiently reaches 107 watts before clipping. At 2 ohms, it surprisingly delivers 169 watts. These numbers reflect the amplifier's robust power-handling capabilities, making it an ideal choice for those who crave depth and clarity in their music.

While it may not impress the highest audiophile standards, its performance is remarkable, especially considering its price point. Whether you're a casual listener or a budding car audio enthusiast, the AC1500.1M is a sound investment that promises to transform your driving experience.

7. Blaupunkt 1501 Monoblock Amplifier – Best for money

Blaupunkt 1501 Monoblock Amplifier
Technical Specs:
  • Amp Class: D
  • Total Power Output: 1500 watts
  • RMS Power at 2 ohm (stable): 1x1125 Watts
  • RMS Power at 4 ohms: 1x563 Watts
  • RCA Inputs: 2 Channel
  • Signal-Noise Ratio: 90 dB
  • Dimension (LxWxH): 7.1x7.5x2.1 inches 

On a tight budget? If so, we suggest the AMP1501. It will deliver performance that surpasses its price range, making it an ideal choice for budget-conscious listeners.

If you own a 2019 F150 Raptor or a Ford Escape with a Sony sound system, the AMP1501 is just for you. It has proven its worth in enhancing stock subwoofers and delivering moderate bass, perfectly complementing your vehicle's existing setup. The remote control feature only adds to your convenience.

It is a good and versatile mono amplifier that can team up with any speaker, even with a 12-inch subwoofer. You can easily fit and install it in any vehicle of your choice.

The amplifier has yet to deliver its promised power ratings, as the actual output seems to hover around 150-200W RMS at 4 ohms. When pushed to higher volumes, the amp might not maintain its composure, with occasional bass drops and sound quality issues. 

It's advisable to monitor the amp's performance, especially under prolonged use. The amplifier might fall short for setups requiring heavy bass or high-power subwoofers.

If you want an affordable upgrade, the Blaupunkt AMP1501 Monoblock Amplifier will certainly provide you with the best value for your hard-earned money. Considering the price, its performance is more than satisfactory when it comes to moderate bass needs.

Factors to Consider While Choosing a Cheaper Amplifier

When choosing a cheaper amplifier for your audio system, it's essential to balance cost with quality and functionality. One might need to consider several factors before buying a cheap amplifier. It is not always easy to look for the best affordable monoblock amp because of the overcrowded options. To make the journey a bit easier, we have discussed the basics of choosing a perfect amplifier in here. (Factors To Consider While Choosing a Car Amplifier)

First, you should understand that you will not get the same level of user experience from a cheaper amp compared to a more expensive one. As you have budget constraints, you need to keep your priorities straight. You have to decide for what purpose you need an amplifier. Focusing on that particular trait, you will have to compromise on other features. That makes your preference and taste the ultimate guide. 

Now, we will delve into some factors that might help you understand your preference.

Power Output

You will have to Understand the difference between RMS (Root Mean Square) power, which indicates the continuous power handling capabilities of the amp. The peak power refers to the maximum power the amplifier can handle briefly.

It is necessary that the amplifier's power output matches your speakers' power handling capabilities to avoid underpowering or damaging them.

Amplifier Class

Class A, B, AB, and D: Different classes have varying efficiency, sound quality, and heat generation. Class D is typically more efficient and excellent running, while Class A/B is known for better sound quality but is less efficient. To know more about types of amp class, tap this article and explore differences among Class A, B, AB, and D amps, tap this article.

Impedance Compatibility

Amplifiers are designed to work with specific speaker impedances (measured in ohms). Check the compatibility to ensure optimal performance and avoid damage.

Sound Quality Features

It is advisable to examine the available audio signal customization options. Without that, you might find yourself confined in a mediocre audio setup. You may look for amplifiers with built-in crossovers, gain controls, bass boost, and other variable controls for better control over frequency distribution. These features allow for customization of the sound profile to your preferences.

Build Quality and Reliability

Though it is hard to find a cheaper amplifier with robust and lasting build quality, there are few. Always look for an efficient cooling system for cheaper models, as it is crucial for longevity.

Brand Reputation and Reviews

Well-known brands often offer better quality and customer support. You may also look for reviews and ratings from other users to gauge real-world performance and reliability.

Questions Users Also Ask Before Buying A Cheaper Amp

Now, let us shed some light on some of the most frequently asked questions.

How Does a Monoblock Amplifier Differ from a Stereo Amplifier?

A monoblock amplifier consists of one channel which powers only one speaker, especially subwoofers. In contrast, a stereo amplifier can power two speakers with its two channels. If you want to make a stereo setup using mono amps, you will need two of them. Mono amps can offer reduced interference between channels.

What Should I Look for in a Cheap Monoblock Amplifier?

You should first decide your preferences. In cheap amplifiers, you will have to compromise some functionalities because it is almost impossible to get all the best features at such a price. According to your preference, you can shortlist some amplifiers. Then may consider other factors like power output, build quality, compatibility with your speakers, and any additional features like thermal protection or multiple input types. Ensure it meets the power requirements of your speakers without sacrificing too much on sound quality.

How Important is the Power Rating in a Monoblock Amplifier?

The power rating is crucial as it determines how loud and clear your speakers can perform. Make sure the amplifier's power output matches or exceeds the power handling capabilities of your speaker for optimal performance.

Can Cheap Monoblock Amplifiers Deliver Good Sound Quality?

Yes, many affordable monoblock amplifiers can deliver good sound quality. But please remember that the level of quality depends on the specific configuration of the speaker. A good way to identify a good-quality amplifier is to read reviews and scout customer’s feedback.

What Kind of Maintenance Does a Monoblock Amplifier Require?

Monoblock amplifiers generally require minimal maintenance. Keeping them clean and ensuring they have proper ventilation to avoid overheating is usually sufficient. Also, periodically checking connections can help maintain optimal performance.

The Verdict

It is important to set realistic expectations regarding power output and suitability for high-demand audio setups. If you're on a tight budget and looking for a reasonable improvement in your car audio, we hope our best cheap monoblock amp guide has been helpful to you.

A cheaper amplifier lets you come out of the mediocre car audio setup and lets you experiment with your existing musical taste. Each affordable car amplifier is good at a particular thing. It is up to you to find the perfect match for yourself.

We recommend you deeply know the technicalities and your existing car audio setup so that you can choose the amplifier that fills out the shortcomings.

Links of Related Amplifier Reviews:

Leave a Comment

12 − 4 =