If you want to hear your favorite music in your car, a mono amplifier is a must-have. An amplifier boosts the output from your car’s audio system, allowing you to hear every note, word, and effect from your speakers.
We researched and tested the most popular mono amplifiers, evaluating each on sound quality, power output, value, and features like Bluetooth, USB charging, and built-in digital processing. Our top pick, the BOSS Audio Systems R1100M Riot Series Car Audio Subwoofer Amplifier, has the most power and features of any amplifier in this class.
Here are the best stereo amplifiers.
Best Car Mono Amplifiers: Editor Recommended
Our Editor’s Best Car Mono Amplifiers Reviews
- 600W RMSx1 330W RMSx 1 S/N : 85 dBA
- preamp and speaker-level inputs
- variable bass boost
- The amp includes preamp- and speaker-level inputs, you can install in almost any vehicle, even one with a factory radio.
- Car audio amplifier 600 watts RMS at 1-ohm load (14.4v); 400 watts RMS at 2-ohm load (14.4v); 230 watts RMS at 4-ohm load (14.4v);
- Powerful Performance: This monoblock car amplifier delivers intense, high-quality sound for your vehicle's audio system.
- Robust Construction: Built with premium components to withstand the rigors of automotive use and ensure long-lasting durability.
- Efficient Operation: Advanced circuitry optimizes power output and minimizes distortion for crystal-clear audio reproduction.
- Flexible Installation: Compact design allows for easy mounting in various locations within your vehicle.
- DIMENSIONS: 10.43" x 9.21" x 2.25", WEIGHT: 4.37 lbs
- SPECS: Monoblock, Class A/B, 2Ω Stable, MOSFET Power Supply, 1100 Max x 1 @ 2 Ohms, 550 Max x 1 @ 4 Ohms
- SPECS CONT'D: Low Pass Filter, Bass Boost, Input Sensitivity, Illuminated Logo, Thermal, Short and Overload Protection Circuits, Remote Subwoofer Control
- INPUTS/OUTPUTS: RCA & Speaker Level Inputs
- WARRANTY: BOSS Audio Systems provides a powerful 6-year platinum online dealer warranty so long as the purchase is made through Amazon.com. We strongly encourage professional installation of this product to ensure proper and safe functionality
- Power - 2000 Watts MAX x 1 @1-Ohm, 1000 Watts RMS x 1 @1-Ohm, 650 Watts RMS x 1 @2-Ohms,400 Watts RMS x 1 @4-Ohms
- Class D - Power loss is significantly reduced making the amplifier highly efficient. Excess energy is stored until it’s needed instead of being converted into heat. Reduction in size/weight, reduced power waste, smaller heat sink, compact circuitry
- 1 Ohm Stable - Able to continuously power loads of 1 Ohm without encountering difficulties such as overheating. Typically made to power up subwoofers that demand the heavier power load requirements to be able to perform the way they were made to
- To keep both your car and the stereo amp safe, this ZE1000.1 is equipped w/ thermal, overload and short circuit protection. Has been specially designed from the bottom up to provide safe and high quality sound in a sturdy form factor
- Specs - Dimensions: 11” x 6.9” x2”, Weight 6.6 lbs.
- (1) Alpine S-A60M 600 Watt RMS Mono Car Audio Amplifier Subwoofer Amp Class-D. (1) Alpine RUX-KNOB.2 Remote Control Bass Knob For Select Alpine Amplifiers Amps. Specifications:
- Alpines Class D Amplifier Circuit. CTA-2006-B Power Rating: 330W RMS x 1 (4ohm, 14.4V 1% THD+N); 600W RMS x 1 (2ohm, 14.4V 1% THD+N)
- S/N ratio: >85dB (ref: 1W into 4 ohm), >105dB (ref: rated power into 4 ohm). THD+N 0.03% (ref 1W info 4 ohm). Frequency Response: 10Hz-400Hz (+/-3 dB). Damping Factor: > 1000
- Remote bass knob compatible (requires RUX-KNOB.2, sold separately)
- HIGH-POWER MONOBLOCK AMP – This amp delivers up to 1000W MAX power, producing deep, clear bass and immersive sound, perfect for cars, ATVs, UTVs, motorcycles, and marine setups without distortion or loss in quality.
- WEATHER-RESISTANT CLASS D DESIGN – The monoblock amplifier features an IPX4-rated water-resistant build, ensuring durability in tough outdoor conditions, making it ideal for off-road and marine applications.
- EASY INSTALLATION & SETUP – This car amp includes an integrated power wiring harness, multiple input options, and speaker wiring connectivity, allowing quick and hassle-free installation for various vehicle setups.
- CLEAR & POWERFUL AUDIO OUTPUT – The class D amplifier ensures high-quality, distortion-free sound with a >90 dB signal-to-noise ratio, delivering crisp, powerful audio with clean bass and exceptional clarity at any volume.
- BUILT-IN PROTECTION CIRCUITRY – This car audio amplifier includes overload, short circuit, and thermal protection, ensuring stable performance, preventing overheating or failures, and extending durability for long-lasting use.
- Class-D Mono-block Subwoofer Amplifier, 1320 Watts Max Power, RMS 660 Watts x 1@1 Ohm; RMS 520 Watts x 1@2Ohm; RMS 310 Watts x 1@4Ohm. Recoil mono amplifiers are stable down to one Ohm, giving you the freedom to put even more subs in your system.
- Featuring a high-speed MOSFET power supply, premium grade internal components, as well as 4-way protection circuitry, the amplifier will safely operate at the highest levels of performance for hours on end. Highly efficient heatsinks keep the amplifier cool with a sophisticated new look.
- Recoil mono amplifiers come with bass remote control. Use it to customize your bass on the fly with just a turn of a knob.
- You'll have full reign over your amplifier with the built-in user control panel, featuring a bass EQ, and variable adjustment tunings for gain level, low-pass filter, and subsonic filter.
- Dimensions: 9.8" x 7.6" x 2.2" (250mm x 193mm x 56mm)
- Class-D Mono-block Subwoofer Amplifier, 1200 Watts Max Power, RMS 600 Watts x 1@2Ohm; RMS 350 Watts x 1@4Ohm.
- Featuring a high-speed MOSFET power supply, premium grade internal components, as well as 4-way protection circuitry, the amplifier will safely operate at the highest levels of performance for hours on end. Highly efficient heatsinks keep the amplifier cool with a sophisticated new look.
- Recoil mono amplifiers come with bass remote control. Use it to customize your bass on the fly with just a turn of a knob.
- You'll have full reign over your amplifier with the built-in user control panel, featuring a bass EQ, and variable adjustment tunings for gain level, low-pass filter, and subsonic filter.
- Dimensions: 7.48" x 5.90" x 1.77"
- HIGH-OUTPUT CLASS-D AMP: Delivers 1400W peak and 350W Dyno-Certified RMS at 2 ohms with <1% THD for clean, impactful bass.
- COMPACT AND RUGGED: Measures 8.9" W x 2" H x 5.5" D, designed to fit tight spaces while maintaining durable performance.
- TUNED SOUND CONTROL: Includes bass remote, adjustable 12dB bass EQ, low pass filter (50Hz-250Hz), and subsonic filter (15Hz-55Hz).
- BUILT-IN PROTECTION: Features full IC-controlled circuitry, under voltage (10V) and over voltage (16V) protection, and phase control.
- CLEAR AUDIO AND FLEXIBILITY: S/N ratio >90dB; compatible with 2-ohm or 4-ohm subwoofers for flexible system design.
- POWERFUL PERFORMANCE: The Hifonics amplifier delivers exceptional power for your car audio system. This class D amplifier boasts up to 1200 watts of output, making it ideal for driving subwoofers and speakers with clarity and precision. The mono amplifier car audio design ensures optimal performance for bass-heavy sound systems, providing the punch and depth you crave in your music.
- EFFICIENT CLASS D TECHNOLOGY: Featuring cutting-edge Class D topology, this Hifonics amp combines high efficiency with big power in a compact footprint. The PWM MOSFET power supply maintains stable voltage through Ultra-Fi MOSFET output devices, resulting in consistent performance and minimal heat generation. Experience superior sound quality without sacrificing space in your vehicle.
- ADVANCED COOLING AND PROTECTION: The amplifier car audio unit features an old-school Hifonics aluminum heat sink for superior heat dissipation, ensuring reliable operation even during extended use. LED system protection circuitry diagnostics monitor overload and speaker short protection, with illuminated indicators on the end panel for easy troubleshooting and peace of mind.
- CUSTOMIZABLE SOUND: Fine-tune your audio experience with the onboard electronic crossover and equalizer. This monoblock amplifier car audio device allows you to control specific frequencies, tailoring the output to your speakers and subwoofers. The included bass remote gives you convenient control over your low-end sound, letting you adjust on the fly for the perfect bass response.
- UNIVERSAL COMPATIBILITY AND EASY INSTALLATION: This Hifonics monoblock amplifier is designed for universal fitment, making it suitable for a wide range of vehicles. Secure, molded connection terminals for power, ground, and speaker connections are angled for easy access and clean wire management. Nickel-plated, high-temperature resistant RCA inputs with hex screw terminals ensure secure, erosion-resistant connections.
Best Car Mono Amplifiers Buying Guide
Before choosing the best car mono amplifier you should consider the following options:
1. Power Supply: Most amplifiers run on either a switched-mode power supply (SWMS) or a linear power supply.
The advantage of a switched-mode power supply is that the high voltage required for amplifying low-level signals is generated with very little distortion.
The disadvantage is that these power supplies are expensive and prone to failure. A linear power supply uses transistors to generate the high voltage required for amplifying low-level signals with little distortion.
The disadvantage is that they are prone to failure and generate large amounts of heat.
2. Class of Amplifier: There are two main classes of car amplifiers: monoblock and stereo.
Monoblock amplifiers are designed for a single channel, and stereo amplifiers are designed for two channels.
3. Watts: The number of watts an amplifier is capable of handling is not always an accurate representation of how loud an amplifier can get.
For example, a 500-watt amplifier will not necessarily get twice as loud as a 250-watt amplifier.
The ability of an amplifier to get loud is also dependent on the kind of speakers being used and the quality of the signal input the amplifier is receiving.
4. Signal to Noise Ratio (SNR): The signal-to-noise ratio is the difference between the strength of the input signal and the background noise of the amplifier.
It is used to determine the accuracy and quality of the amplifier. A higher SNR means that the amplifier is more accurate.
5. Total Harmonic Distortion (THD): Total harmonic distortion measures the amount of distortion that an amplifier is capable of producing.
This measurement is important because it gives an indication of the quality of the amplifier.
An amplifier with low total harmonic distortion will be much clearer than one with high total harmonic distortion.
While the amplifier may be more capable of producing sound, an amplifier with high total harmonic distortion will be difficult to listen to.
What else you should know about the best car mono amplifiers
1. What are the best car mono amplifiers on the market?
There are many different car mono amplifiers on the market, so it really depends on what you are looking for in an amplifier. Some of the best car mono amplifiers include the JL Audio 500/1, the Alpine MRP-M500, and the Kicker CXA1000.1.
2. What are the features of a good car mono amplifier?
Some features of a good car mono amplifier are low distortion, high power output, and low noise.
3. How do I choose the right car mono amplifier for my car?
A good place to start is by doing some research online and reading reviews of different car mono amplifiers to see which ones are the most popular and well-reviewed. Once you’ve narrowed down your options, you can then decide which amplifier is the best fit for your car and your stereo system.
4. What are the benefits of using a car mono amplifier?
Some benefits of using a car mono amplifier include increased sound quality, more power, and easier installation.
5. How do I install a car mono amplifier in my car?
There is no one-size-fits-all answer to this question, as the installation process for a car mono amplifier can vary depending on the make and model of the vehicle, as well as the specific amplifier model. However, in general, the installation process for a car mono amplifier involves connecting the amplifier to the car’s battery and then running speaker wire from the amplifier to the car’s speakers.
Conclusion
On the market, there are numerous best car mono amplifiers. Hopefully, the list of the top ten best car mono amplifiers will save you time researching and deciding on the best one for you.