Best 3 Channel Amp of 2021 [Review & Buying Guide]

If you’re upgrading and don’t have a completely new audio system, you’ll almost certainly need an amplifier update. This should be a few watts more powerful than the factory unit. Fortunately, creating audio from scratch is not as difficult as it may appear, and thanks to the internet, it is no longer something that should be left to a professional.

Before you buy the best 3 channel amp, there are a few things to consider, so we’ve examined some of the most user-friendly and cost-effective models available.

The Best 3 Channel Amp Reviews & Full Details

#1. Taramp’s TL 1500 3 Channel 390 Watts Amplifier

Taramp's TL 1500 3 Channel 390 Watts Amplifier

Taramps’ TL 1500 amplifier module was designed for three-channel vehicle sound systems, such as 2 channels (L/R) of 95 Watts RMS each, with an active HPF cut filter at 90Hz to connect the doors and buffer loudspeakers. 1 channel for a 200-watt RMS subwoofer to connect to subwoofer boxes. This channel is the result of adding the two channels (L/R) and applying a cut LPF active filter at 90Hz.

It’s a stereo system with a maximum power of 190 Watts RMS at 2 ohms and FULL RANGE, which means it’ll play all frequencies in the proper proportion for you. The TL Series amplifiers are designed to boost the performance of internal systems while keeping the original sound from every configuration. This is one of the best 3 channel amp.

Key Features

  • 3 Channels
  • Small form factor
  • 390 watts
  • Maximum Power is 13.8 VDC
  • Wire Input is 6V
  • Short Output
  • Output Stage Efficiency is over 90%
  • Thermal Protection System
  • Minimum and maximum Supply Voltage: 9 VDC and 16 VDC

#2. Sony XMGS4 (Black) 3 Channel Amp

Sony XMGS4 (Black) 3 Channel Amp

The Sony XM-GS4 4/3/2 channel amplifier will power your entire system, with each front and rear speaker receiving 70 watts RMS. Alternatively, you may use the amp in 2-channel mode to power two subs with 160 watts RMS each. This little amp has a large heatsink that dissipates the heat generated when your system is pushed hard.

The XM-GS4 also has a cooling fan that changes its speed based on the amount of heat it senses, guaranteeing that this compact amplifier always delivers the power it promises. This is a small 3 channel amp to consider.

Key Features

  • Class AB
  • 70W x 4 CEA 2006 RMS at 4 Ohms
  • GS Series
  • 160W x 2 RMS at 4 Ohms
  • CEA-2006 compliant
  • Frequency response: 10-100,000 Hz
  • Preamp and speaker-level inputs
  • Cooling fan

#3. AudioControl D-4.800 High Power Amplifier 3 Channel

AudioControl D-4.800 High Power Amplifier 3 Channel

The D-4.800 combines AudioControl’s award-winning amplifier technology with our powerful Matrix DSP. When you need audio perfection from your factory or aftermarket sound system, this single-unit solution gives unmatched power and tuning options.

The D-4.800 possesses level inputs with active speakers, outputs, and line inputs, as well as total control via audio control’s DM software. This is a budget 3 channel amplifier.

Key Features

  • In-built DSP
  • 4or 3or 2 channel amplifier
  • 4 x 200 watts @ 2 ohms
  • 400 watts @ 4 ohms bridged
  • 4 x 125 watts @ 4 ohms
  • Maximum Input Level Control

#4. Soundstream ST3 1000W Class D 3 Channel Amplifier

Soundstream ST3 1000W Class D 3 Channel Amplifier

The latest Full range class D technology permits you to kick 10lbs of in a chassis that weighs less than 2 lbs. Class DS steady performance, once classified as “dirty power,” now challenges traditional full-range applications because of high power capabilities, low tolerance, and optimum efficiency components.

Stealth amplifiers are ideal for any car, boat, motorcycle, or off-road vehicle due to their low power consumption, ultra-small footprint, incredible sound quality, and ease of installation.

Key Features

  • 1000W
  • class D type
  • Control of Remote gain included
  • 3 channel amplifier
  • 4 Rms power

#5. AudioControl LC-4.800 Powerful Car Amplifier with AccuBass

AudioControl LC-4.800 Powerful Amplifier with AccuBass

This one-of-a-kind high-power design has six active speaker level inputs with the summation, allowing you to connect to and integrate with most factory-installed source units. The AccuBASS circuit, which has a patent-pending, compensates for factory bass roll-off and gives a maximum bass performance. This audiocontrol lc-4.800 is the best 3 channel car amplifier.

Key Features

  • 2 Ohm: 200 watts x 4 chan.
  • 4 preamp inputs
  • 2 assignable preamp outputs
  • Bridged: 400 watts x 2 channel
  • AccuBASS Processing

#6. Heavy Bass Audio Digital Power 3 Channel Amp

Heavy Bass Audio Digital Power 3 Channel Amp

This is one of the best 3 channel amplifier. To provide a super heavy bass sound impression, this digital amplifier board uses a large output power of 2*50W/1*100W. A high signal-to-noise ratio of up to 100dB ensures crystal-clear sound with no background noise, and built-in multi-level protections ensure user safety. It can maintain a constant current, maintaining the sound’s stability and smoothness, and so providing greater sound quality.

Key Features

  • Large power of output
  • Signal to noise ratio is 100 DB
  • 3 channel amplifier
  • Stable current
  • Protection at multi-level

Buying Guide: 3 Channel Amplifier

Before you buy a car amplifier, there are a few things to think about.

What Is The Purpose Of A Car Amplifier?

A car amplifier, in simple terms, amplifies the sound from your head unit to your car speakers. Two channels are the very minimum for a full-range 2-way or 3-way class speaker, making them perfect for a sub and satellite setup (left and right, and bass). If you buy a 4-channel but only need a 2-channel setup, you can bridge it and still have the option to add a second set of speakers later.

How Does A Car Amplifier Work?

An amplifier is an electrical transistor circuit that controls the flow of electrons using capacitors and resistors. It takes a low voltage signal and utilises it to regulate a much higher voltage signal, essentially amplifying and the inaudible line-level signal from your head unit (vehicle audio) until it can power your speakers’ drivers to move their cones. Because most head units aren’t capable of driving a loudspeaker, an amplifier is the only way to get a full-range sound that’s free of buzzing and less synthetic for a lengthy road trip.

With a MOSFET power supply, the system will function effectively, with no wasted energy, and you won’t be able to overload your speakers, which will lead to overheating, distortion, shorting, as well as long-term damage.

How Do You Set Up An Amplifier In Your Car?

Previously, amplifier installations required the assistance of a professional, and while this is always suggested and certainly desirable if you are a newbie or ill-equipped for the task, newer models aren’t too difficult to install in your automobile.


That concludes our guide to the best 3 channel amp. Budget amplifiers don’t have to be expensive; in fact, they’re frequently one of the less expensive components in most setups; a subwoofer, for example, will cost a lot more than the donkey that has to do all the legwork.

We also recommend getting an amplifier with a variable low pass filter adjustment, which will give you more control over your system’s workload allocation and allow you to sculpt your equalization.

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