Best Class D Amplifier to Buy in 2022

Need an amplifier to Amp up your sound quality? As such major of the speakers with their default stereos are not able to satisfy the need of many. Thus, that’s where the class d amplifier comes handy and provides the edge which was missing at first.

So where would you find the best class d amplifier? Certainly not in the traditional market, as such, you would get blindsided by all the vast range of products, that you wouldn’t even know what you are looking for.

Thus, to provide you the firm idea or we can say the list of class d amplifiers to you, then you would have a fighting chance in front of this variety of products. But first, before bluntly buying the class D amplifiers, you must understand the basics of amplifiers and what makes class D stand out from the rest of the amplifiers.

What is a class d amp?

A class d amplifier that can be even said as a switching amplifier is an electronic amplifier whose sole purpose is to amplify the devices and act as an electronic switch, not like other amplifiers that work like the linear gain devices.

These amplifiers work by rapid switching back and forth between the supply rails that are fed by a modulator using pulse width, pulse density, or techniques that are used to encode the audio input into the pulse train. You can find out more product also Best Digital Tape MeasuresBest Leg Compression Machines

This audio now escapes from a simple low pass filter to the loudspeaker, therefore the high-frequency pulses get blocked and pairs of output transistors stop conducting. As a result, no other path is left for the current flow and it straight passes through the low pass filter or loudspeaker, making it 90% efficient.

That being said, let us now discuss some of the best class d amplifier which has roses up, despite their class d amplifier reviews.

Best Class D Amplifier Review

1. Alpine BBX-T600 600W Max BBX Series 2-ohm Stable 2 Channel Class-A/B Amplifier:

Alpine 600W BBX Series Class-A/B Amplifier can surely make your music top-notch and enable you to cruise around with the windows down and the music turned ON with great quality and clarity.

The amplifier can adapt between the 2 channels, based on the requirement for more convenience. As such it uses a high-efficiency digital circuit design for the enhanced performance.

Alpine BBX-T600 600W

The frequency of the bass is controlled with the high pass and low pass filters because these filters are the ones who can match your speaker and ensure the optimum efficiency.

The body to support such sound quality, heavy-duty aluminum alloy heat-sink body is used and also features adaptive feedback global modulation topology.

Key features:

  • High-efficiency digital circuit design
  • For optimum efficiency, high pass and low pass filters help in order to set the frequency points for the high, mid and low bass ranges
  • KRMS Power Rating:
    • 4 ohms: 50 watts x 2 chan
    • 2 ohms: 70 watts x 2 chan
    • Bridged, 4 ohms: 130 watts x 1 chan
  •     For easy transaction, it utilizes 2 or mono channel operations
  •     Input sensitivity: .2V – 8V
  •     Frequency Response: 5 – 50000 Hz
  •     Total Harmonic Distortion (THD): <1%
  •     Signal to Noise Ratio: 95dB
  •     Variable high-pass filter: 80 – 1200 Hz
  •     Variable low-pass filter: 50 – 500 Hz
  •     Variable Bass Boost: 0 to +12 dB bass boost
  •     Fuse Rating: 20A x 1
  •     3-way protection circuitry to protect from thermal, overload and speaker short problems


  • Superior sound quality
  • Value for money
  • Compact
  • Highly powerful output


  • Snap-on terminal setup is easily breakable due to tension

2. Rockford Fosgate R500X1D Prime 1-Channel Class D Amplifier, BLACK:

The Rockford Fosgate 500 Watt Mono D Amplifier provides an unparalleled performance and makes your audio perfect and next level. The amplifier can provide 500 Watt x 1 Channel @ 2 Ohms RMS.

Rockford Fosgate R500X1D

The amplifier works with the help of a MOSFET power supply with cast aluminum heatsink, muted turn-on, over current protection, short circuit protection, RCA pass-thru outputs, realtime output, high-level input and power supply thermal sensing, phase switch, CEA 2006 amplifier packed with remote bass control are the key parts or we can say modes or specifications of the amplifier.

Key features:

  •     12dB/octave Butterworth crossover
  •     RCA pass-thru outputs
  •     On-board Punch EQ with +18dB boost @ 45Hz.
  •     High-level inputs
  •     Remote Punch Level Control
  •     0°/180° Phase Switch
  •     Real-time output and power supply thermal sensing
  •     Cast aluminum heatsink
  •     4 Gauge power/ground connectors
  •     MOSFET power supply
  •     Over-current protection
  •     Short circuit protection
  •     Muted turn on


  • Thermal sensors
  • CEA-2006 compliancy
  • Remote control bass
  • Prevents short circuits


  • It provides only plug-in, and doesn’t support battery-powered operation

3. 2 Channel Stereo Audio Amplifier Receiver Mini Hi-Fi Class D Integrated Amp 2.0CH for Home Speakers 100W x 2 With Bass and Treble Control TPA3116 Fosi Audio TB10A:

The Fosi audio TB10A provides an extraordinary quality of clear HiFi sound with the next generation of stereo amp to deliver the unrivaled sound quality. Improved channel balance, lower noise floor, overall A purer sound, reduced distortion, enhanced dynamic range, and clean potent power output are some of its key features.

2 Channel Stereo Audio Amplifier

This high-performance texas instruments TPA3116D2 chip is packed with the rousing high and deep lows, even at the high volumes and almost 0.04% harmonic distortion for the top-notch clarity.

When talked about the finish, the product has curved edges and sleek controls that accentuate its unibody design. Due to such build, the speakers gain a much more crispy sound.

The speakers are categorized under Drive passive speakers which are perfect in order to separate the passive speakers and preamps your audio setup. The speakers have 100 watts per channel power output and can successfully drive passive home speakers to create an astonishing sound.

DC outlet can be dangerous as such in case of short circuit, they are the ones which blows out first. Thus, to protect that from happening, a built-in protection circuit has been prepared, making it a safer option.

Key features:

  •     Power Adapter: 24V/4.5A
  •     DC Input Range: 12-24V
  •     Terminating Impedance: 2 Ohm – 8 Ohm
  •     MAX Power Output: 100W x 2
  •     THD ≤ 0.04%
  •     Frequency Range: 20Hz – 20kHz (±1 dB)
  •     SNR ≥ 98dB
  •     Input Sensitivity ≤ 280mV
  •     Input Mode: RCA


  • 2 channel mini power amp
  • Advanced audio architecture
  • Extraordinary clarity HI-FI sound
  • Upgraded DC outlet


  • Audio interference after 50% volume

4. S.M.S.L AD18 HiFi Audio Stereo Amplifier with Bluetooth 4.2 Supports Apt-X, USB DSP Full Digital Power Amplifier 2.1 for Speaker, Small 80Wx2 Class D Amplifier with Subwoofer Output:

This class d amplifier is a small full digital Bluetooth amplifier that is built with headphone amplifier and subwoofer output support. You can connect the amplifier and use it to amp up the headphone or connect with the passive speakers to produce 80Wx2 output power from the 4ohm speakers.

S.M.S.L AD18 HiFi Audio Stereo

The amplifier has sophisticated aluminum matting housing in order to reduce the interference. Apart from these, it has a patented SDS sound and +-8 levels of adjustments for treble and bass.

CS8422 is installed to act as a signal convertor, as such it receives the optical and coaxial signal and then transfers all the signal forward. TAS1020B supports the stereo sound of about 16bit/24bit and attains a sampling rate of 96 kHz. For much better sound quality, SDPI output is required and instead of DAC output design.

The HP amplifier chip MAX97220A analog/digital convertor IC: CS 5341 for more accurate sound to 24 bit/ 48kHz.

Key features:

  • It supports USB coaxial analog Bluetooth and two optional inputs
  • 3.5mm headphone jack and subwoofer output, 1.44-inch color screen and 80w x 2 output power and amplifier output port is incorporated
  • Easy connectivity with Bluetooth by NFC, apt-X support, customized BT 4.2 Bluetooth module
  • Tas5508c+tas5342a, Bluetooth amplifier from the TI amplifier chip, SDB sound patented and DSP technology


  • Up to six kinds of input
  • Equipped with advance SRS BT4.2 for all the Bluetooth solution
  • For TI – Tas5508c+tas5342a is used
  • Independent IC for HP AMP
  • Built-in SDB sound patent that belongs to the SMSL


  • Ports a too small

5. Dayton Audio DTA-1 Class D AC/DC Battery Powered Mini Amplifier 15 WPC:

The product is incredibly compact in size thus don’t get fooled by its size. It is a serious piece of audio gear, as such a proprietary class T amplifier chip that enables the DTA-1 to provide 88% efficiency.

Dayton Audio DTA-1

The DTA-1 T-amp is an obvious choice in order to power high efficient single driver speaker,  and can provide up to 15 watts of power per channel. It is an ultimate portable HI-FI setup for home or office.

The Dayton Audio DTA-1 T-amp unusually runs with the help of 8 AA batteries for unchanged portability. A rear-mounted 3.5mm stereo audio input is delivered.

Key features:

  •     Portable Class D 30 watt amplifier
  •     A convenient travel buddy with great-sounding amp
  •     For perfect probability, battery and AC powered power supply
  •     88% amplifier efficiency for enhanced  battery life
  •     Hi-Fi sound quality for superior sound quality


  • Sound quality
  • Quality material
  • Controlled volume


  • Amp not up to the mark

6. Skar Audio RP-350.1D Monoblock Class D MOSFET Amplifier with Remote Subwoofer Level Control, 350W:

Skar audio RP 350.1D monoblock class D subwoofer amplifier is the unique product that dominants the market in both power and reliability. The product is well built, high-quality amplifiers, and efficient which stand proudly on the Skar audio laps.

Skar Audio RP-350.1

It is one of the smallest RP series amplifiers and the perfect solution for the ones who need versatility but don’t want to sacrifice power output. The RP-350.1D works with stable 1 ohm and utilizes a wide array premium internal component in order to make it extremely powerful and reliable.

Key features:

  •     Class D MOSFET Monoblock Power Amplifier
  •     Peak Power at 1 Ohm is 388 Watts and RMS Power at 1 Ohm is 350 Watts
  •     Frequency Response between 20Hz – 250Hz
  •     On-board Bass EQ Switch with +6 or +12dB boost at 45Hz
  •     4-Way Protection Circuitry
  •     8 AWG power and ground input terminal for the maximum amount of current flow
  •     Remote Subwoofer Level Control Included
  •     For maximum reliability and performance, highly efficient heatsink design


  • 6-decibel level range
  • Strong internal components
  • Wide range of frequency
  • 4-way protection of circuitry


  • Not very well protected
  • Only for vehicular application usage

Buying Guide for Best Class D Amplifiers:

1. Size and weight:

This particular category usually depends on the user itself. As such, each user poses different needs, thus if one needs a portable amplifier then the selections are different whereas if the user needs a strong and heavy-duty amplifier than the selection brands would be entirely different.

That being said, the buyer must first jot down its requirements and then shop for the amplifier in order to meet a perfect buy.

2. Cost:

This is yet another important aspect of finding the perfect amplifier, the amplifier which you have selected is perfect in respect of specs than its good but the price is very high than that product is of no use to you.

Thus one must find an amplifier that is budget-friendly and has all the required specs in it.

3. Input Type:

Wired one or the wireless one, that is the big question. Well, both the options are considerable and have their own perks.

Bluetooth capability is great if the product is in range, while on the other hand, wired products have value as well as such they are the old and trusted traditional amplifiers.

4. Power:

Power is the key part of any amplifier as such the amplifier is categorized for its quality and crispiness of the sound. If the sound is not clear than the product would not be able to sell itself.

Thus owning a much-needed power or wattage is very very necessary.


Despite the positive review, there are many amplifiers that are not able to provide the desired result and quality. Thus we have categorized the various class d amp reviews and made a list of products that will surely satisfy all your needs.

So, if you have selected the amplifier from the above list then don’t second guess yourself and just go and buy the amplifier.

Frequently Asked Question and Answers

Q:1 What makes the class D amplifier so special?

Ans: These Class D Amplifiers are always in demand due to their quality and durability. Each and every system tends to lose energy due to built but not this one. These amplifiers cut down the energy loss and drain the level of battery very slowly.

Q:2 How long do these amplifiers last?

Ans: The lifespan of any product relies on its usage. If taken care of properly then the product will last long and will play efficiently without feeling any kind of static distortion.

Q:3 Does the size of the amplifier matter?

Ans: The simple answer to this would be Yes, it matters. The compact size amplifier would break down easily and will produce less volume as compared to the big one.
While on the other hand, big amplifiers are tricker to carry and use a high amount of power but the sound quality and volume would be much higher.

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