13 Best 4 Channel Amp 2023 Complete Guide & Reviews

If you are an artist or a musician, then you are well aware of the importance of amplification. Working with amplification is a necessary skill to master in order to succeed. There are many types of amplifiers and amplifiers can become better with practice and experience. This article will show you what is 4 channel amplifier and how it works.

If you are looking for that full-range sound that comes from two great speakers and a subwoofer, you don’t have to break the bank just to get premium sound. A 4 channel amplifier is a great way to get top-quality sound from any system, and still maintain a good price point. While the higher-priced amplifiers might be able to offer more features or more power, they may not provide the best sound quality. This blog will tell you what features to look for when purchasing the best 4 channel amplifier for you and your car.

Investing in the best 4 Channel amp is an ideal way to create a good full range, premium sound quality from your speakers. This works even better if you currently have two speakers and a subwoofer setup. To improve the sound quality of your speakers, you will need the best 4 channel amp. They allow you to control and amplify the electrical audio signal at high voltage, after which the speaker is used to drive the car from the inside.

What is a 4 channel amp?

The 4 channel amplifier is similar to the 2 channel amp but there are some differences. Both have a power supply to increase the 12V battery voltage. Without it, the speakers would not get enough output power to run properly.

Nowadays 4 channel AMPs are also prevalent. This means they can be connected to a speaker load of two channels to offer more power. They will also provide options like crossover or bass boost for two of your four channels.

when looking at a car amplifier is deciding how many channels are needed. The power of an amplifier is distributed between channels. For example, if there are 300 watts of electricity between 3 channels, each will have 100 watts. If you just want to power your subwoofer, it is advisable to go for a monoblock / single channel. You better buy a more powerful car amp that runs without pressure for better quality.

why do you need a 4 channel Amplifier?

4 channel amplifier is ideal for the car and this is by far the best choice you can make. The best and most efficient sound system for your car will make the experience all the more enjoyable and you will love it. It will be easy to get the right sound for your music and you will also be able to enjoy the right music whenever you get in the car. 

It is better to go with a 4 channel amplifier over a 2 channel amplifier because of the number of people who will be able to listen to your sound. Of course you can make 2 people listen to your sound at the same time, but if you have a 4 channel amp, then you can have 4 people using the amp at the same time. It is better to go with a cd player that can hold 4 disks at the same time so that you do not need to put in 4 discs every time you want to listen to music.

Why 4 channel amp is the favorite choice?

A significant number of car owners and professionals prefer to have a 4 channel amplifier as opposed to other AMP options. For starters, it offers great value for your money and is rather a versatile choice. In this regard, you can securely connect 2 to 6 speakers with a 4 channel amplifier.

The compact design is introduced in the leading best 4 channel car amplifier model. That way, you can install an amp anywhere in your car. In fact, it is the perfect amp choice for installation in tight spaces, such as the back seat.

Amp can also be connected in a number of ways, all of which guarantee audio output quality provided they are properly connected. This will allow you to configure your car stereo system the way you want.

Best 4 Channel Amp 2021

A best 4 channel car amplifier should employ four independent audio channels and multiple audio paths instead of two. Such amplifiers also usually feature 2-channel input audio switches for compatibility with either two or four-channel source components, two subwoofer outputs for better bass control, and separate high/low pass crossover network capacitors for better clarity and frequency correction.

[table id=6 /]

1. BOSS Audio Systems R1004 – Best 4 Channel Car Amplifier 

The BOSS Audio Systems R1004 offers a 4-channel amplifier that is perfect for powering your favorite speakers. With High Pass and Low Pass filtering, you can tailor the sound quality to fit your needs. This amplifier also has a variable 8-ohm load to adjust the amount of power sent to each speaker to help balance the sound. The R1004 is a great choice for powering systems with up to four speakers.

If you still use your headset to promote your device, you never know what you’ve lost! The headset is often unable to deliver your loud, high-pitched sound, at least in the middle of a struggle to distort (and damage) your sound amplifier. This is just a small best 4 channel amp for some 6×9 “or 6.5” speakers. Sounds good and fits snugly in a limited area, so if you’re making an ice chest radio or something like that,

This is where a series of MP terrorists enter. The True Amplifier technology is a solid 2 ohm (enough power for a 4-ohm loudspeaker in just one channel and even for an open door, dashboard, or dive speaker.) Known as the best 4 channel amp under 100$.

Key Features: 

  • This amplifier is capable of powering multiple speakers and subwoofers.
  • This lead is to be used with a remote turn-on lead from your source unit.
  • This allows you to control the level of input for each channel.
  • Class ‘A’ amplifiers have an enormous amount of current flowing through their output transistors with no audio signal. Class ‘B’ amplifiers have no current flowing through their outputs with no audio signal
  •  With a Full Range amplifier, you not only have the option to run your speakers but also your subwoofers
  • High & Low-Level Inputs – A low level (RCA) input is measured in voltages. A high-level (+/- wire) input is measured in wattages. Both essentially carry signal from your receiver to your amplifier to your speakers
  • Variable Gain Control – The gain control is not for adjusting volume. 
  • Produces the sound you want even at high volumes
  • 6 years Platinum Online Dealer Warranty


 Boss Audio R1004 Riot 400


  • Great Sound Quality
  • High power output
  • Excellent amp for Subwoofers
  • The cooling fan is silent


  • One speaker center
  • Cables not included

2. Alpine X-A70F X-Series – Best 4 Channel Power Amplifier

Alpine’s all-new X-Series is designed to deliver class-leading performance in a versatile system offering. Featuring Alpine’s MOSFET™ technology infused in the Class-D amp, Alpine X-A70F delivers phenomenal power handling, high efficiency, and an incredible sound quality punching out of the box. Moreover, the X-Series offers two custom weekly setup options: either Entertain or Go. The Entertain mode is designed for people who want maximum midbass output.

Alpine is a prominent product in the automotive market. So it’s no surprise that the Alpine X-A70F is the best example on our list. In fact, it is actually the best 4 Channel Amp for other amp errors in which it takes the title. However, it is also the most expensive place on our list.

Alpine X-A70F is one of the biggest amps on our list – even though it’s a topology D course, so the heat won’t be a problem. Also, the input feeling is slightly reduced at 400 mV to 4 volts which will require new head units or signal transmitters a small price to pay for such a quality best 4 Channel amp for Sound Quality.

The Alpine X-A70F looks very wide with an impressive range of 5 kHz to 100 kHz. No other AMP on our list comes close to that price. On the plus side, the X-A70F also has low noise at 115/95 dB and for the first time has a relationship with the MTX with 0.05% THD.A great choice for a high-performance car audio system. Alpine’s X-Series amps deliver high power with low noise.

These amps produce clean and accurate sound, with a well-defined soundstage that allows you to hear the components in your system correctly-as they were designed to sound, rather than how the rest of the vehicle sounds when you play music through its internal speakers. The X-A70F amp delivers 120 watts of power at 4 ohms, and 175 watts at 2 ohms.

Key Features: 

  • A 4/3/2 channel amplifier that can run a full-range speaker system.
  • It has a maximum power of 200 Watts RMS and 400 Watts Peak Power.
  • At 4 Ohms, it has a power handling of 120 Watts RMS and 240 Watts Peak Power.
  • This amplifier is a perfect choice for a small car or a truck.
  • High-end performance and technology in a midsize car audio amplifier.
  • Integrates into a variety of car audio systems with ease
  • Great spatial imaging and depth of sound stage
  • RMS Power Handling @ 4 Ohms: 120 Watts RMS Power Handling @ 2 Ohms: 175 Watts
  • Built-in Crossover & Bass EQ
  • Frequency Response: 5 Hz – 50 kHz
  • Crossover Frequency: 40 – 300 Hz, 12 dB/octave
  • Bass EQ Frequency: 40 – 300 Hz, 12 dB/octave

Alpine X-A70F X-Series 4 Channel Power Density Amplifier


  • Clear sound and high confidence
  • Good specification with high volume levels
  • Easily adjustable settings


  • Expensive

3. Planet Audio AC1200.4 – Best  4 Channel Amplifier

Planet Audio AC1200.4 is loaded with features that you just can’t find in other brands. Even though all its performance parameters are outstanding, it’s one of the most recognized brands in the audio market. This brand is known for producing high-quality products with very nice and attractive designs. This is one of the best 4 channel amp brands in the market for its unbeatable efficiency and sound quality. It can really outperform other brands in the same price range.

Planet 4 channel car amplifier is rated at a 4.3-star rating with over 293 satisfied users. If you are looking for a great high-speed car amplifier with high sound quality, this should be your choice. The planetary audio amplifier is the most sought-after motor amplifier. The amplifier of these best 4 channel car amplifiers has a low and high response which gives a clear sound to the speakers.

Planet Audio AC1200.4 is equipped with 4 channel AMP, a lower-level subwoofer control. It has the most powerful power PWM with high power output and low input level. It has a 2-ohm stable amplifier of 1200 watt max power. An audio planet allows you to control the sound.

Key Features: 

  • Improved thermal management and short circuit protection
  • Variable low pass crossover — 40Hz to 500Hz
  • Variable bass boost — 0 to +12dB at 45Hz
  • Variable low pass crossover — 40Hz to 500Hz
  • Variable bass boost — 0 to +12dB at 45Hz
  • High-level input — accepts speaker level inputs from factory radios
  • Large power capacity, high efficiency, compact size
  • Built-in bass boost
  • High-level input with auto gain control
  • Variable low-pass filter
  • Variable high-pass filter
  • Variable bass boost
  • 6-year platinum dealer warranty


Planet Audio AC1200.4 4 Channel Car Amplifier -



  • It has low and high input power
  • Power supply
  • LED indicator protection


  • Short term warranty

4. Kenwood XR401-4 – Best 4 Channel Amplifier

The Kenwood XR401 4 Channel Amplifier is a high-resolution 4 channel amplifier with a built-in digital CD receiver. It has a fine line amplification, and the signal is processed and amplified by built-in state-of-the-art technology. A subwoofer output lets you enjoy great sound from your own subwoofer. With independent bass control of each channel, you can enjoy music in its original quality.

This amplifier features 4 channels, including a bass control, and a built-in crossover to allow you to have full control over the sound. The amplifiers can also be controlled via their remote handset. When used with the optional Kenwood XR600, the amplifier can be controlled from a distance using the Kenwood XR600 remote handset. When used with the optional Kenwood XR700, you can use whichever remote handset you prefer for added flexibility.

The XR401 is Kenwood’s newest and most sophisticated 4 channel amplifier. It is a high-resolution audio system that will surpass the sound quality of CD and MP3 formats. A variety of selectable amplifier and speaker settings makes this unit an ideal choice for a wide variety of music sources. An audio processor provides clear treble and bass. An audio programmable limiter with an adjustable range lets you control the sound level so you can enjoy all your favorite tunes at comfortable levels. 

Key Features: 

  • Proper heat sink for heat dissipation.
  • Remain cool after long hours of use.
  • Longer lifespan, making it an investment.
  • High-quality components for high-quality sound.
  • 4-channel amplifier with high-resolution audio.
  • Sleek, durable design.
  • Latest Class D Digital Amplifier Technology
  • High-resolution audio with wide-bandwidth and high dynamic range
  • 4-channel 100W x 4 max output at 4 ohms and 2 channels at 4 ohms.
  • High-current preamp outputs and switchable high-pass and low-pass filtering.
  • 3-step variable midrange frequency level adjustment


Kenwood 4 Channel Amplifier



  • An auto-open feature
  • It is easy to set a compact size


  • Short term warranty

5. Pyramid PB618 2,000-Watt 4 Channel Amplifier

Pyramid PB2518 is a powerful unit that has all the inputs and outputs needed for your car sound system. Although this unit is not a monoblock to remember these things, it is 3000 watts. Consumers still like it even though they know it at the time of purchase. If you want something that is the same channel, then this is not the unit for you.

This is another normal unit. It measures 10.24 inches by 2.26 inches by 11.02 inches. It also weighs a modest 8.14 pounds. This makes the unit much lighter than the others, but it still packs a good punch and works great. PB2518 is made of high quality and is durable. This is the best 4 channel amplifier car audio 3000 watts. It can be turned on remotely or by any control. Like some of the other units, it has LED indicators and safety indicators.

This Amplifier is designed for professional sound applications, and is ideal for use in recording and mixing studios, or anywhere where you need a powerful amplifier. It is the perfect choice for those looking for a feature-packed amplifier that’s equipped with four high-power channels to handle 2,000 watts of power, as well as a wide array of features. This 4 channel Amp features dual variable bass boost (0-12DB @ 50Hz) and variable gain control (0-12dB).

Key Features: 

  • Superb sound quality – delivers a crisp and clean sound with minimal distortion
  • Ease of installation – 4-channel amplifier is easy to set up and install
  • Durability – equipped with a heavy-duty aluminum alloy heat-sink for better heat dissipation
  • Versatility – can be bridged to deliver over 2,000 watts
  • Hi/low-level inputs: accept up to 5 volts
  • THD: less than 0.1%
  • Variable bass boost (0-12 dB@50 Hz)
  • Soft turn-on/off circuitry
  • Fully protected circuitry


Pyramid PB2518 3,000-Watt 2-Channel Bridgeable Mosfet Amplifier


  • Fully Adjustable Electronic Crossovers
  • Heavy Duty Aluminum Alloy Heat-sink


  • Not strappable

6. MTX Audio WET75.4 400W RMS 4 Channel Amp

The popular MTX series has been around for more than 20 years, which speaks volumes about its quality. Thunder 75.4 is the smallest Thunderbolt in current production. It goes into a nice house, with a company logo and a power indicator displayed on top.

Class AB amps are very popular among car owners who want a complete sound setup. This is due to the relatively cheap prices and excellent Class A and Class B. The MTX Audio Thunder 75.4 is one of many AMPs in the Thunder class.

This AMP has a built-in surface, which gives it tremendous resistance to vibration, whether you drive in rocky or rugged terrain. It is very similar to a 4 channel amp with a different path. The front channel filter can be applied anywhere from 10 to 200 Hz on a 12 dB / active shield. Lower and lower background filters are 50 to 750 Hz at the same 12 dB / octave.

Key Features: 

  • Conformal coated circuit board
  • Surface Mount Technology
  • Amplifies 4 speakers with clarity and power
  • Tuned to ensure that your boat’s sound system is as loud as it can be
  • Ideal for mounting in small spaces
  • Gives a sense of quality and ease of use
  • It has a huge bass response.
  • It has a high output power. 
  • It has a conformal coated circuit board.
  • It is surface mount technology.

MTX Audio WET75.4 400W RMS 4-Channel


  • The Good frequency range
  • ohms is very good


  • expensive


7. Rockford Fosgate – 4 Channel Amplifier

The Rockford Fosgate R2-500X4 Class-D amplifier gives you the power you need in a compact design. No matter what type of system you’re looking to power, the R2-500X4 is ready to do it all. Power up your stereo system with 50 watts of power per channel. Get the kick in your favorite songs that you’ve always desired with the R2-500X4’s 500-watt output and single 4-ohm impedance.

Rockford Fosgate R2-500X4 4 channel amplifier consider a budget-friendly ultra-compact amp that packs better than you expect. The R2-500X4 Full Range Class D 4-Channel Amp with 500 watts of RMS power is rich in features and performance for on-demand power and bass supply. Technology makes this AMP highly efficient by reducing the demand for vehicles

This amp has a high-performance, full-range 4 channel amplifier (1.9″ x 6.8″ x 10.1″) with 500 Watts of RMS power and 400 Watts of peak power. This amp is packed with features and performance to deliver power and bass on demand with 500 Watts of RMS power. Class-D technology makes this amp extremely efficient by reducing demand. A built-in digital crossover (24db/octave) allows you to

Fully adjustable 12 dB / active high and low pass Butterworth crossover features, balanced differential inputs RCA pass outputs, high-level input capable, circuit and top-mounted controls capable of auto turning Pass-through When purchased from the famous Rockford Foss Gate seller, the famous Rockford Foss Gate is standardized with 1-year full warranty.

Key Features: 

  • 500 watts RMS x 4
  • 1,000 watts peak power
  • Built-in Punch EQ
  • RCA pass-thru outputs
  • Subwoofer level, phase, and crossover controls
  • Remote Punch EQ
  • Variable high and low-pass crossovers
  • High-level input and output
  • Auto turn-on and gain
  • Thermal, DC, and short circuit protection
  •  1-year manufacturer’s warranty



Rockford Fosgate R2-500X4 500-Watt 4-Channel Amplifier


  • Great heat management
  • High and low input
  • You can enable front and rear speakers


  • Cannot be separated

8. Lanzar VCT4110 2000 wat 4 Channel Car Amp

The Lanzar 2000 watt 4 channel high power MOSFET amplifier is a smart choice for your car stereo system. It boasts 500 W x 4 out of 4 ohms or 1000 W x 2 bridged out of 2 ohms. With a total of 2000 watts at 4 ohms and 3000 watts at 2 ohms, it’s the ideal choice for all kinds of music enthusiasts. This amplifier features all 4 channels providing top quality sound and two sets of preamp outputs for giving you full control

The Lanzer VCT 4110 is specially designed from the bottom to provide quality sound in the strong form factor. A Hz-250Hz Heritable Low Pass: 40Hz -250Hz Input Level Gain Control: 6V200MV Bass Boost Boost Boost Switch, so your speaker will always be provided with high audio.

To improve your music, this product features low/high pass variable crossover for efficiency and precise control. Speaker/subwoofer terminals guarantee high conductivity and minimal signal loss. Lanzer VCT4110 2000 Watt best 4 channel car amplifier Powerful Amplifier High-performance output is equipped with metal oxide semiconductor field-effect transistors for quick switching to full immobility.

Key Features: 

  • 4 channel high power MOSFET amplifier
  • RMS power: 1000W
  • Max power: 2000W
  • Precision-built, high-quality audio
  • Ultra-slim, lightweight design
  • Auto turn on / off
  • High-level inputs
  • Low pass crossover


Lanzar VCT4110 2000 wat 4 Channel Car Amp


  • Full range crossover
  • power supply


  • No subsonic filter

9. Pyle Hydra Marine 4 Channel Audio Amplifier

The  Pyle 4 Channel Marine Amplifier is engineered to take your music enjoyment to entirely new levels. Get to listen to your music, whether your head unit is compatible with the amplifier or not. This product has the power to deliver up to 400 watts of raw power to your speakers. Its frequencies are between 20-20,000 Hz. Use it to play your favorite music while you are having your barbeques in the backyard, while you are spending your beach time or while you are enjoying your water sports activities. You are guaranteed to get continuous, powerful, high-quality sound every time you use this amplifier.

Pyle Hydra Marine Grade audio amplifier can be used for 4-channel or bridged mode operation. This amplifier provides an easy-to-use audio solution that delivers 2,200W peak and 800W RMS power at 4 Ohms and is designed to meet the needs of an audio-video enthusiast and entertainer who wants to turn their car or truck into a mobile concert hall. The easy-to-use design includes a bank of 4 pairs of gold-plated RCA input jacks and two pairs of gold-plated RCA output jacks.

This marine-grade amplifier features a heavy-duty aluminum alloy heatsink and thermal overload speaker short protection and LED indicators. The amp is protected against over-voltage, current, and thermal overloads. This amplifier is ideal for professional and non-professional audio and video installations on boats and vehicles.

This amplifier is Powerful with its 400 WATT and dual Mosfet power supply comes with dual adjustable input gain level controls between 1 300mV and 4 or 8 Ohm speaker impedance. This Power Amplifier features a Power On LED indicator, Power Protection circuitry, and a Mute function; however it goes beyond those basics to include a variable high pass and low pass crossover. The Power On LED will light up when the unit is turned on. The Power Protection circuitry will protect against a short circuit, a limiter protects against a sudden high input signal.

A Gain Control with Dual Variable input level control that varies between 1 300mV output and 4 or 8 Ohm speaker impedance, a built-in crossover selection switch, crossover low pass control crossover High Pass Control, a Protection LED indicator, a Gain Control LED indicator, a Mute function control to silence the amplifier output, a Variable Bass Boost from 0 to +12 dB at 60 Hz.

Key Features: 

  • Powerful 400 watts: 100 watts x 4 max 400 watts
  •  100 watts RMS x 4, 20 Hz -20 kHz, THD : 0.1%, 2-channel driven, FTC
  • Built-in MOSFET power supply
  • Input Gain Level Control
  • Power Indicator
  • Power/Protect LED
  • 2-channel RCA preamp outputs
  • 2-channel RCA preamp inputs
  • Subwoofer RCA preamp output
  • •Powerful marine-grade amplifier.
  • 1 300mV to 4 or 8 Ohm speaker impedance

Pyle Hydra Marine 4 Channel Audio Amplifier



  • Dual adjustable input gain level controls
  • IP 01, waterproof ready
  • Dual adjustable input gain level controls


  • Overall good power, except for background noise.

10. DS18 Car Audio 4 Channel Amplifier

Get ready to jam out with this 4 channel amplifier by DS18. This amplifier is capable of producing up to 1,500 watts of pure power at 2 ohms, which is more than enough for daily applications. This amplifier has different modes of operation, all of which are easy to switch between. The DS18 amplifier works on 4 channels, which means you can drive multiple speakers at once – something that is not possible with two channel amplifiers.

This amplifier also features RCA pass-through jacks, allowing you to connect multiple amplifiers for truly high-powered sound. A remote bass level controller is included, which allows you to adjust the bass output of your amplifier while you are at the helm. You can even control this amplifier with an optional remote. This is the perfect amplifier for any car audio enthusiast!

DS18’s A/D/S/ series of amplifiers are some of the most technologically advanced amplifiers ever designed. The A/D/S/18 is a 4 channel amplifier. It is RMS Power rated at four channels at two ohms. This D/S/18 is capable of producing the same power at 2 ohm loads, as it does at 4 ohms. The A/D/S/18 4 channel amplifier features a frequency response of 5-22,000Hz. The D/S/18 is a Class D amplifier. Class D amplifiers feature a small heat sink and a fan to keep temperatures well under the thermal threshold.

The DS18 amplifier is a stable amplifier without a lot of excess heat to worry about. The DS18 series of amplifiers features a MOSFET power supply for high efficiency. The DS18 has a high crossover frequency of 22KHz. The DS18 series offers four channels, with a variable low pass filter that is configured as a 12dB per octave filter. The variable low pass filter features a 12dB per octave filter. This means that as the frequency increases, the roll-off is much more dramatic.

Key Features: 

  • 8 Gauge Monster Truck Ready Wire
  • Easy to install
  • Plug-And-Play wiring harnesses for quick installation
  • Improves the sound quality of your car by increasing the number of speakers
  •  Increases the volume to save you money on expensive sound systems
  • Maximizes the potential of your vehicle’s audio system
  • Easily replaceable if damaged
  • Best in class sound quality

DS18 Car Audio 4 Channel Amplifier


  • The easy-to-use interface
  • Powerful and easy to install
  • Advanced circuitry to maximize performance


  • Sounds good but warms up.

11. Blaupunkt 1500W 4 Channel Amplifier

This Blaupunkt AS-5400 4-channel amplifier is a powerful addition to your car audio system, delivering up to 1500 watts of pure, efficient power. It features a slim, sleek design that is sure to look great in any car interior while delivering 150 watts RMS per channel for clean, balanced sound. If you need some extra power while you’re cruising down the highway, just use the included remote.  if you need to upgrade your whole system, this amp is compatible with most 4-channel car stereos.

Compact and lightweight, this Blaupunkt 4-channel amplifier is the perfect choice if you’re looking for a power booster for your vehicle’s stereo system. It is capable of delivering up to 1500 watts of output power, ensuring you get enough juice for practically any speaker configuration. The added flexibility of 4-channel capability means it’s compatible with virtually any car audio setup, so you can play your music with top-quality sound.

If you’re in the market for a small but powerful amplifier, this is a perfect choice. Also includes a thermal, overload, and short-circuit protection circuit. This type of quality can certainly bring your vehicle audio system to life. Plus, with 150 watts per channel delivered cleanly, listeners will enjoy their music at top volume without any distortion. if you are looking amp for your car, Blaupunkt is the best 4 channel amp.

Key Features: 

  • 1500 watts of power
  • Full-range amplifier
  • 150-watt RMS output
  • The maximum power output of 1500 watts
  • Fits perfectly into any trunk
  • Built-in smart thermal protection that prevents overheating from heavy use
  • IPX4-waterproof protection
  • Versatile design that fits perfectly into any trunk
  • Dual stereo system

Blaupunkt 1500W 4 Channel Amplifier


  • High-quality components
  • Connects to any stereo system
  • Ultra-thin design fits into any trunk


  • It gets hot

12. Taramp’s  4 Channel Class D Amplifier

The Tramp’s 4 Channel Class D Amplifier is a 2 Ohm stable amplifier that is compact sized for installation in most Audis. Each channel of the amplifier using a Toshiba power Mosfet. The amp is constructed with the highest quality parts that are “Made in the USA”. Each channel of the amplifier has a built-in high-pass crossover for the tweeter and mid, and a low-pass crossover for the woofer. The amplifier will accept 4 or 2-ohm loads and has a crossover point of 90Hz. The amp is designed to be run at 13.8 volts and has 4 high and low-level inputs and a remote turn-on wire.

The Taramp’s 4 Channel Amplifier delivers up to 400 watts of RMS power into 4 ohms of impedance. Digital signal processing (DSP) circuitry gives the amplifier its class D design, while the low-pass, high-pass, and subsonic filters allow it to be extremely flexible. The amplifier’s controls are located on the top panel for easy access and include a power/ground select switch, subsonic filter, high pass filter, bass boost, and volume controls for each of the four channels. The amplifier weighs only 9 pounds but offers a powerful punch of 250 watts RMS into 2 ohms of impedance, 400 watts into 4 ohms, or 800 watts into 2 ohms when bridged.

Taramp’s 4 Channel amplifier is a highly efficient amplifier that is designed for powering subwoofers. This amplifier has 4 channels that are designed with 2 Ohms load output per channel (4 Ohm per sub-woofer). To ensure low-distortion performance, its circuits are designed to include low-pass crossover (LPF) at 90Hz (-12dB / 8th). Its input impedance is 22K OHMS. Its thermal protection system and short output ensure that your amplifiers will work with no problem. ‘

Taramp’s 4 Channel Amplifier is the latest in switching amplifier technology and is an excellent alternative to more expensive and less efficient Class AB designs. The latest in switching amplifier technology, Taramp’s 4 Channel amp is an excellent alternative to more expensive and less efficient Class AB designs. Class D amplifiers are much smaller and lighter than Class AB designs, which makes them much more suitable for portable audio applications. Class D amplifiers are also much more efficient in their usage of power, which results in less heat being dissipated in the amplifier, which makes them much less likely to overheat or damage components in the control section.

Key Features: 

  • Output power: 16x RMS @ 4 Ohms, each channel.
  • Low pass crossover: 90Hz
  • Input constraint: 22K OHMS
  • Thermal protection system
  • Minimum supply voltage: 8VDC
  • Maximum supply voltage: 16VDC.
  • Standby power: 0.8 MPa
  • Maximum musical power: .8 13.8VDC: 16.5 MP.
  • Maximum signal consumption: (1kHz) 13.8VDC: 33 Amp.
  • Dimensions (WxDxH): 138 x 49 x 121 mm.


Taramp's  4 Channel Class D Amplifier


  • Low power consumption
  • Durable construction
  • High efficiency and flexibility
  • Compact and lightweight


  • It heats up quickly

13. BOSS Audio PF1800 4 Channel Car Amplifier

BOSS Audio PF1800 Class D Monoblock Amplifier is the ultimate 4-channel power solution for today’s high-performance audio system. It boasts 450 watts max power output, the highest available on the market. Innovative Class-D amplifier technology provides exceptionally high audio quality and efficiency. The BOSS Audio PF1800 is a pure design, with a single-piece chassis, fire-retardant epoxy-potted transformers, and a high-grade MOSFET power supply. It’s a clean, easy to install solution that offers a powerful audio experience.

Boss is a leading manufacturer of quality car audio products with a wide range of applications from head units, speakers, amplifiers, subwoofers, and more. With a full range of speakers and amps the Boss PF1800 is their 4 channel amplifier with a max power of 450 Watts x 4 @2-Ohms, 225 Watts x 4 @4-Ohms, 900 Watts x 2 @4-Ohms. Using a Class A/B Topology the Boss PF1800 is a powerful amplifier that can power a full range stereo system and a subwoofer with ease. Backed by a 3-year manufacturer’s warranty the Boss PF1800 is a safe investment. Do you want quality with your audio? You have it!

The Boss Audio PF1800 is a 4 channel amplifier that can power up to 2 pairs of speakers. It is rated at 75 watts RMS x 4 at 4 ohms, 100 watts RMS x 4 at 2 ohms, and 150 watts RMS x 2 at 4 ohms via variable bass boost. The Boss Audio PF1800 has a variable gain control which allows you to adjust the overall volume of the system. The variable gain control is not for adjusting volume. It only adjusts the amount of signal that is coming from your receiver and going into your amplifier. Compatible with the following Boss Audio Subwoofers: 10 Inch Subwoofer PF1900 12 Inch Subwoofer PF2000.

The PF1800 best 4 channel amp is a powerhouse of output, containing four completely independent channels of MOSFET power. With a power output of 1800 watts RMS x 4, this amp is capable of handling the most demanding of listening conditions. This amplifier uses advanced circuitry to utilize the power output to your speakers and subwoofers.

Key Features: 

  • High Power Output
  • MOSFET Power Supply
  • Variable Gain Control
  • Variable BASS Boost
  • Bridgeable
  • RCA Inputs
  • Speaker Level Inputs
  • Remote Bass Control 

BOSS Audio Systems PF1800 4 Channel Car Amplifier


  • Provide high quality sound.
  • Produces up to 200 watts of sound.
  • With variable bass boost.


  • It needs an indoor fan to keep it cool.

Can you connect 4 speakers and a sub to a 4 channel amp?

Wondering if you can run four speakers and a sub-woofer with a 4 channel amp? Not really. The 4 channel amps are generally meant to be used with two speakers and a sub-woofer. If you can connect 4 speakers and a subwoofer to a 4 channel amplifier, the amplifier will not give the best performance and it might even damage. So, it’s better to avoid such action and use a 5 channel amp if possible.

You can connect four speakers and one subwoofer to a 4 channel amp.  This will be wired as follows: – 4 Speakers to the four channels on the amp – Center Channel Speaker to the “Pre Out” or “Auxiliar” of the amp – Subwoofer to the subwoofer port, labeled “Subwoofer out” on most amps It is also possible to connect the front two speakers to the two front channels of the amp, and the rear speakers to the two rear channels of the amp. This is useful if you have a subwoofer “BASS” output on the sub, where you can connect the sub to the subwoofer output of the amp, and then wire the speakers to the two channels of the amp. This is probably more common on home theater receivers.
Wondering if if you can run four speakers and a sub-woofer with a 4 channel amp? Not really. The 4 channel amps are generally meant to be used with two speakers and a sub-woofer. If you can connect 4 speakers and a sub-woofer to a 4 channel amplifier, the amplifier will not give the best performance and it might even damage. So, it's better to avoid such an action and use a 5 channel amp if possible.


Choosing the Best 4 Channel Amp 2021

If you are looking for a way to replace the sound system that comes with your car or if you are looking for a brand new one, chances are you will find the best 4 channel amp in the market. ۔

We’ve researched some of the best products, most of which are about finding products that stand out better than others. Before we get started, let’s take a closer look at some of the key features you need to be aware of when shopping on the best 4 Channel amp.

you have 4 independent audio amplifier sections, which are now generally designed in such a way that each pair of channels can pull an extra electric lid bridge if needed. Some have features like bass boost control that can only be used in 2 out of 4. It varies from brand to brand and model to model, so it’s important to make sure before you buy.

key features:

Watts: Watt is the primary power for amp. It is important to keep in mind that if you are using an amp and you want more than 1000 watts of high-quality sound, you should consider the second or more powerful one according to your demand.

Adjustable equalizer: Equivalents filter different frequencies and, while most have 4 channel AMP, they are usually automatic. We found some people who could adjust. This will give you additional controls that can be adopted to enhance your car’s sound system.

Remote control: You don’t have to be thinking about the remote control. Some AMPs come with a remote turn-on lead connection, some do not. There are many ways around it but it gets easier if anyone is involved.

Quality: The best-sounding AMPs use well-designed circuit boards that are carefully planned. These boards include high-quality components that make your system sound better. You don’t want a company that takes manufacturing shortcuts.

How to Bridge a 4 Channel Amp

To double the output power of a 4 channel amplifier while using the same set of speakers or subwoofers while preserving their impedance balance, simply bridge each channel by connecting the opposite pairs of positive and negative inputs together. If one is looking to connect a 4 channel amp to any pair of speakers which happen to be rated at 4 ohms load resistance, bridging can be easily accomplished by wiring the positive leads from channels one and two in parallel with the same act done for channels three and four. The negative leads are then connected accordingly, completing the bridge connection between channels 1-2 and 3-4.

1st Step

Find the speaker wire terminals on your amp. There will be 4 channel terminals consisting of the positive and negative channel wire with a speaker down clamping system in order to allow you to securely hold your speaker in place in a stationary manner.

How to Bridge a 4 Channel Amp

2nd Step

Connect the red wire to the positive terminal of channel one and connect to the positive terminal on the subwoofer. Then strip approximately 3 inches from the ends of both red and black wires, ensuring not to expose any metal, which could cause a short circuit. Next, insert each into their respective positions on the speaker connectors.

How to Bridge a 4 Channel Amp

3rd Step

To start this process, connect one end of the positive speaker wire to the negative terminal and the other end of the wire to the positive (brass-colored) terminal on all 4 channels. Use wire pliers and a wire stripper to strip about half an inch off each end of the speaker wires, otherwise, your speakers will not make any sound. Cover each exposed end in black electrical tape for protection if necessary.

How to Bridge a 4 Channel Amp



We do thorough research on topics and provide you with the best and most innovative information that will help you clear up any of your queries. So, keep in touch with us for additional light and live articles are being headed and we will include each of the solutions to your inquiries in them.

If you have upgraded other audio inside your car, the speakers will not be able to reach their full potential without using the proper car.  it totally depends on how much you can afford to buy 4 channel amp for your car.

We hope you enjoyed our article about investing in the best 4 channel amp. With this knowledge, we know that you can make the most of your audio setup with the ideal amplifier. So what are you waiting for?

Check out our article on the best 4 channel amp 


 FAQs – Best 4 channel amplifier


Do amps improve sound quality?

Amp does not improve sound quality. They only raise the signal to the desired level. However, if the amplifier has parallel or signal processing capabilities, they can make it different and possibly more suitable for listening pleasure. But again, this amplifier is part of signal processing.

Why Do You Need a 4 Channel Amplifier?

A 4 channel amplifier enables you to upgrade your car stereo to its high altitudes, mids, and bows. Your car’s factory system can provide an amplifier, not a boss thumping louse or a crisp note. If you want more power in your audio system, you need to invest in the best 4 channel amp.

Is a 4 channel amp worth it?

If you need maximum power for speakers, 4 channel amplifier is the best option for you. A 1000 watt 4 channel amplifier works best for most people, if your car is big and you need more power, you can use 2000 watts or 3000 watts.

How many channel amp do I need?

You will need one amp for all the speakers in the car which means you will need more than one channel on the AMP. If the car has 4 speakers, one speaker will connect to each channel. Most cars have four speakers, so 4 channel amps are the most popular.

Do amps affect sound quality?

An amplifier improves sound quality in a number of ways. Amplifiers are primarily designed for volume editing, but they can also affect sound calligraphy and tone. Overall, the sound quality depends on the type of external factors, such as an amplifier, setup, room acoustics, among other factors.