Car audio video mono amplifiers are specialized single-channel powerhouses designed primarily to drive subwoofers, delivering the dedicated low-frequency amplification necessary for deep, impactful bass. They are essential for enthusiasts seeking to enhance their vehicle's sound system with robust, focused power. Products were evaluated based on power output (RMS vs. peak), amplifier class efficiency, Ohm stability, user reviews, and feature analysis.
Skar Audio RP-800.1D Monoblock Class D MOSFET Amplifier with Remote Subwoofer Level Control, 800W
This amplifier offers a strong 800W RMS output in a Class D design, coupled with useful features like remote subwoofer control and an on-board bass EQ.
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BOSS Audio Systems R1100M Monoblock Car Amplifier - 1100 High Output, 2-8 Ohm Stable, Low/High Level Inputs, Low Pass Crossover, MOSFET Power Supply
$63.99
The BOSS R1100M, while powerful, typically represents a more accessible entry point with its Class A/B design and 'Max' power rating, making it a common choice for budget-conscious setups.
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PLINIUS PHF700D car Audio Amplifier Monoblock Class D MOSFER 700 watts RMS Remote Subwoofer Level Control
$59.99
With 700 watts RMS at 1-ohm load and efficient Class D operation, the PLINIUS PHF700D delivers robust and clean power, making it a reliable choice for demanding audio systems.
View on AmazonLooking for the best Car Audio & Video Mono Amplifiers?
Discover now our comparison of the best Car Audio & Video Mono Amplifiers. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Car Audio & Video Mono Amplifiers are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Car Audio & Video Mono Amplifiers in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.
- 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
- Massive Power, Precision Delivery: Utilizes advanced Digital Class D amplifier technology with over 90% efficiency. Compact and cool-running, it delivers a staggering 1000W of peak power, ensuring every watt is efficiently converted into breathtaking...
- Rock-Solid, Stable Performance: Stable at 1 Ohm load (subwoofer channel), providing greater current output and control. Ensures unwavering, dynamic performance even at extreme volume levels—no power fade.
- Pure Sound, Detail Restored: Features a high-performance MOSFET switching power supply and multiple protection circuits (thermal, over-voltage, short-circuit, speaker DC protection). Effectively filters engine noise and interference for signal-to-noise...
- Sleek Design, Flexible Installation: Full die-cast aluminum chassis offers robust heat dissipation and a modern look. Its slim profile allows for easy hidden installation under seats or behind panels, preserving valuable cabin space.
- Dimensions: 7 (L) x 6.5 (W) x 2 (H) (inch)，weight：3.52 ibs RMS:700 watts RMS at 1-ohm load (14.4v); 380 watts RMS at 2-ohm load (14.4v); 220 watts RMS at 4-ohm load (14.4v);
- Car audio amplifier 700 watts RMS at 1-ohm load (14.4v); 450 watts RMS at 2-ohm load (14.4v); 260 watts RMS at 4-ohm load (14.4v);
- 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
- 1-4 Ohm Stable - Able to continuously power loads of 1-4 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
- Engineered to be the most efficient car monoblock amplifier in its class so that you can get the most out of your vehicle’s electrical system
- MOSFET pulse width modulated power supply and proprietary heat dissipation design will ensure the amplifier for car subwoofers runs cool for even the most demanding playlists
- DIMENSIONS: 7.1" x5.1"x2", WEIGHT: 4.1 lbs
- 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
- Class D MOSFET Monoblock Power Amplifier
- Peak Power at 1 Ohm: 1,200 Watts | RMS Power at 1 Ohm: 800 Watts
- Frequency Response: 20Hz - 250Hz, On-board Bass EQ Switch with +6 or +12dB boost at 45Hz
- Featuring 4-Way Protection Circuitry and 4 Gauge Power & Ground Input Terminals for Maximum Current Flow
- Stable at 1 ohm | Remote Subwoofer Level Control Included
- Highly Efficient Heatsink Design allows for Maximum Reliability & Performance
- Car audio amplifier with 1000 watts RMS power at 1-ohm load (14.4v); 650 watts RMS at 2-ohm load (14.4v); 350 watts RMS at 4-ohm load (14.4v); Frequency response: 0 to 320 Hz (Bass Knob Included)
- Small footprint and compact chassis makes this mono amplifier easy to install in any vehicle or car audio application; but don’t let the size fool you, this 1000 watt amplifier absolutely pounds
- Engineered to be the most efficient car monoblock amplifier in its class so that you can get the most out of your vehicle’s electrical system
- MOSFET pulse width modulated power supply and proprietary heat dissipation design will ensure the amplifier for car subwoofers runs cool for even the most demanding playlists
- 4-way protection circuitry features high voltage, low voltage, over current, and high-temperature protection; sleep easy at night knowing your class d amplifier car audio is protected
- This Class D Monoblock Amplifier exhibits quality frequency response rates and crossover network which places this amp at a prominent place. Durable design and highly efficient performance makes this mono sub amp stand out amongst the others.
- This cobalt subwoofer amplifier for car speakers is able to power loads of 1 Ohm on a continuous basis without facing any difficulties like overheating, making extra sounds. This Class D amplifier is designed to power subwoofers that have a constant...
- The monoblock subwoofer amplifier for car stereo speakers with mosfet power supply comes with low-level inputs. A low level (RCA) input is measured in voltages. Essentially carry signal from your receiver to your amplifier to your speakers.
- The monoblock bass boost amplifier has features like - Frequency Response: 10~250HZ, Low Pass Filter, Bass Boost, Subsonic Control, Remote Bass Knob, MOSFET Power Supply, Thermal Protection, Phase Shift.
- This Class D 2000 watt Amplifier has a power rating distribution as follows 500W RMS @ 1 OHMS | 260W RMS @ 2 OHMS | 160W RMS @ 4 OHMS. The monoblock amplifier for car speakers also provides a 2-way protection circuitry as a part of its design.
- Class-D 5-Channel Amplifier, 1,800 Watts Max Power, RMS 1,280 Watts x 1@1 Ohm; RMS 220 Watts x 4@2Ohm + RMS 980 Watts x 1@2Ohm; RMS 140 Watts x 4@4Ohm + RMS 600 Watts x 1@4Ohm. The mono channel is stable down to ONE Ohm, giving you the freedom to put even...
- 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...
- Recoil 5-Channel 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: 14.6" x 7.6" x 2.2" (370mm x 193mm x 56mm)
- Class-D Mono-block Subwoofer Amplifier, 1200 Watts Max Power, RMS 600 Watts x 1@1Ohm; RMS 385 Watts x 1@2Ohm, RMS 235 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...
- 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"
- 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.
- Versatile Compatibility: Compatible with a wide range of speakers and subwoofers for seamless integration into your car's audio setup.
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Last update on 2026-04-16 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Car Audio Video Mono Amplifiers
Understanding Power Output: RMS vs. Peak
When selecting a car audio mono amplifier, the most critical specification to consider is its power output, specifically the Root Mean Square (RMS) wattage. RMS power indicates the continuous power an amplifier can deliver, which is what truly matters for consistent, high-quality bass reproduction. Peak power, often advertised prominently, represents the absolute maximum power an amplifier can produce for a brief instant and is generally less indicative of real-world performance. For instance, while a BOSS Audio Systems R1100M might advertise '1100 High Output' (likely peak), a PLINIUS amplifier like the AS 1 Channel explicitly states its '600 watts RMS at 1-ohm load,' providing a clearer expectation of sustained performance. Always prioritize the RMS rating to ensure your subwoofer receives adequate and stable power.
Amplifier Class and Efficiency
The amplifier class dictates its operational efficiency and heat dissipation characteristics. Class D amplifiers, such as the PLINIUS PHF700D or Skar Audio RP-800.1D, are known for their high efficiency (typically 80-90{60454d64bc41d884c370de49adf53606fc5a397539d9bf04a01760bf9e832155}), meaning they convert most of the input power into audio output and generate less heat. This allows for smaller amplifier footprints and reduced strain on your vehicle's electrical system. In contrast, Class A/B amplifiers, like the BOSS Audio Systems R1100M, are less efficient (around 50-70{60454d64bc41d884c370de49adf53606fc5a397539d9bf04a01760bf9e832155}) but are sometimes preferred for their perceived audio fidelity in full-range applications, though for subwoofers, the efficiency of Class D is often paramount. For mono amplifiers, Class D is typically the preferred choice due to its power-to-size ratio and lower heat output.
Ohm Stability and Impedance Matching
Ohm stability refers to the amplifier's ability to safely operate at different electrical resistances (Ohms) presented by the subwoofer(s). Matching the amplifier's Ohm stability to your subwoofer's impedance is crucial to prevent overheating and damage. Amplifiers like the PLINIUS AS 1 Channel and Skar Audio RP-800.1D are '1-4 Ohm Stable,' offering flexibility for various subwoofer wiring configurations, including single subwoofers wired to 1 Ohm or multiple subwoofers. Conversely, models like the BOSS Audio Systems R1100M are listed as '2-8 Ohm Stable,' which means they are not designed to handle lower 1-ohm loads. Always verify your subwoofer's impedance and how you plan to wire it to ensure compatibility with your chosen amplifier.
Integrated Features and Controls
Modern mono amplifiers often include a suite of features designed to optimize subwoofer performance and integration with your car's audio system. A Low Pass Crossover (LPC) is essential for filtering out high frequencies, ensuring only bass signals reach the subwoofer, a feature found on BOSS Audio Systems models. Bass Boost allows you to selectively amplify low frequencies for a more pronounced bass response, as seen on the Skar Audio RP-800.1D. Furthermore, a Remote Subwoofer Level Control, offered by both PLINIUS PHF700D and Skar Audio RP-800.1D, provides convenient on-the-fly adjustment of bass levels directly from the driver's seat, enhancing user experience without needing to access the amplifier itself.
Pros & Cons
Skar Audio RP-800.1D Monoblock Class D MOSFET Amplifier with Remote Subwoofer Level Control, 800W
Pros
- Delivers a robust 800 Watts RMS at 1 Ohm, suitable for demanding subwoofers.
- Class D MOSFET design ensures high efficiency and lower heat generation.
- Includes remote subwoofer level control and an on-board Bass EQ for fine-tuning.
Cons
- The peak power (1200W) can be misleading if RMS is not fully understood by users.
- Specific frequency response (20Hz-250Hz) might require careful matching with certain subwoofers.
BOSS Audio Systems R1100M Monoblock Car Amplifier - 1100 High Output, 2-8 Ohm Stable, Low/High Level Inputs, Low Pass Crossover, MOSFET Power Supply
Pros
- Features comprehensive protection circuitry against thermal, short, and overload conditions.
- Includes both Low/High Level Inputs for versatile system integration.
- Equipped with a Low Pass Filter and Bass Boost for sound customization.
Cons
- Uses Class A/B amplification, which is typically less efficient and generates more heat than Class D.
- The primary power rating is 'Max x 1 @ 2 Ohms,' which is a peak rating, not continuous RMS power.
PLINIUS PHF700D car Audio Amplifier Monoblock Class D MOSFER 700 watts RMS Remote Subwoofer Level Control
Pros
- Offers substantial RMS power (700 watts RMS at 1-ohm load) for serious bass output.
- Class D design provides high efficiency, reducing power loss and heat.
- Includes a remote subwoofer level control for convenient bass adjustment.
Cons
- While efficient, Class D sound characteristics are sometimes debated by purists for full-range audio.
- Specific features like a variable bass boost might not be as detailed as some competitors.
Common Mistakes to Avoid
Confusing Peak Power with RMS Power
A common pitfall is focusing solely on the 'peak' or 'max' power ratings advertised by manufacturers, such as the '1100 High Output' found on BOSS Audio Systems R1100M models. In practice, RMS (Root Mean Square) power is the true indicator of an amplifier's continuous, usable power output. Relying on peak figures can lead to selecting an underpowered amplifier that struggles to consistently drive your subwoofer, resulting in distorted sound or premature failure. Always look for the explicit RMS power rating, especially at the Ohm load you intend to use.
Ignoring Amplifier Class for Efficiency Needs
Not considering the amplifier's class can lead to issues with heat and power consumption. Class A/B amplifiers, like the BOSS R1100M, are less efficient and generate more heat compared to Class D amplifiers, such as the PLINIUS PHF700D or Skar Audio RP-800.1D. Installing an inefficient amplifier in a confined space without adequate ventilation can cause thermal shutdown and reduce its lifespan. For subwoofers, the superior efficiency of Class D is typically more beneficial for power delivery and system stability.
Incorrectly Matching Ohm Stability to Subwoofer Load
Failing to match the amplifier's Ohm stability with your subwoofer's impedance is a critical error. Amplifiers like the PLINIUS AS 1 Channel and Skar Audio RP-800.1D are '1-4 Ohm Stable,' meaning they can safely operate at 1, 2, or 4 Ohms. However, if you attempt to run a 1-ohm stable amplifier at a lower impedance, or a 2-8 Ohm stable amplifier (like the BOSS R1100M) at a 1-ohm load, you risk overheating and potentially damaging the amplifier. Always confirm your subwoofer's wiring configuration and total impedance before connecting it to a mono amplifier.
Overlooking Essential Control Features
Neglecting critical control features like Low Pass Crossovers, Bass Boost, or Remote Subwoofer Level Controls can limit your ability to fine-tune your audio system. For example, the BOSS R1100M includes a Low Pass Filter, which is vital for directing only low frequencies to the subwoofer. Models like the PLINIUS PHF700D and Skar Audio RP-800.1D offer remote bass control, allowing convenient adjustments without reaching for the amplifier. Overlooking these features can lead to a less optimized sound profile and a more frustrating user experience.