Best Class D Amplifier

The best class d amplifier is the best way to make the music sound good. It gets rid of background noise and makes sure that you hear what you want, not all the other stuff around. They also work great for listening to a lecture or watching TV in a noisy environment – just turn it on and enjoy!

The best class d amplifier has a few factors that go into it, including power output and efficiency. These amplifiers are very efficient because they have little to no heat dissipation in the amps themselves – this is important for fans of cars since these amplifiers do not require cooling systems like traditional amps might need. Best Class D Amplifier

Another best class d amplifier factor is the sound quality. Class D amps are known for pushing out great sound with digital technology, which means that get crisp music without background noise or static bothering your listening pleasure!

10 Best Class D Amplifier – Buying Guide And Reviews

These 10 best class d amplifiers have tone control (tone knob) to further fine-tune the sound to best suit according to the needs. These amplifiers have a lot of power that can push out some great sounds.

1- Fosi Audio BT20A Audio 2 Channel Amplifier – Best for Bookshelf

The Fosi Audio BT20A Audio 2 Channel Amplifier is a great device. It runs on Bluetooth and can stay connected up to 50ft away. Furthermore, not only does it have a clean, crisp sound, but it’s also really small and easy to carry around with you or place in any room of the home without taking up too much space!

Also, with a protection circuit built-in speaker, the Fosi Audio BT20A amplifier provides the best performance for people seeking HiFi sound without breaking their bank account. Fosi Audio Bt20a

Extraordinary Clarity Hi-Fi Sound

Setup is done instantly with most Bluetooth-enabled devices, such as smartphones, tablets, and laptops. In addition, the Bluetooth 5.0 chip allows to stream music without skipping when you’re up to 50 feet away from the device.

Drive Passive Speakers

The perfect choice for audio setups that utilize passive speakers and preamps. With a power output of 100 watts per channel, most passive speakers on your home can produce remarkable sound. Compatible with Bluetooth and RCA, they are easy to install.

Advanced Audio Architecture

TPA3116D2 is a high-performance music processor that produces music with rich highs and rich lows. In addition, remarkable clarity is delivered at even high volumes due to harmonic distortion of less than 0.04%.

Irresistible Finish

Designed with clean curved edges and smooth controls, the FOSIA Audio BT20A has a sleek, unibody appearance. The product includes thoughtfully crafted premium enclosures and useful features. This is a new generation: better functionality and elegant design.

24V/4.5A Power Supply

A stable power supply and an energy-efficient motor are the defining characteristics of the Fosi Audio BT20A.

Upgraded DC Outlet

There is a risk of sparks when old versions of amplifiers or other brands are plugged in. Therefore, a power protection circuit is built in to power adapters to prevent sparks from flying when connected to amplifiers. As a result, they are safe to use!


  • Power Adapter: 24V/4.5A
  • DC Input Range: 12-24V
  • THD ≤ 0.04%
  • SNR ≥ 98dB
  • MAX Power Output: 100W x 2
  • Input Sensitivity ≤ 280mV
  • Input Mode: Bluetooth and RCA
  • Frequency Range: 20Hz – 20kHz (±1 dB)
  • Terminating Impedance: 2 Ohm – 8 Ohm
  • Bluetooth Transmission Distance: Up to 50 Ft
  • DAC: Q4, Q5, DA2120A, DA2120C, HD3, K3, E10
  • Subwoofer Amp: TP-01, TP-02, M02, M03
  • Phono Preamp: Box X2, BOX X1; Tube Preamp: P1
  • Tube Headphone Amplifier: T20, P2
  • 2 Channel Power Amp: BT10A, BT20A, TB10A, V1.0G, TDA7498E, ZK-1002, ZK-502T…
  • 2.1 Channel Power Amp: BT30A, BT30D, BL20C, ZK-TB21
  • Hi-fi Bluetooth wireless amplifier
  • Simple, compact design
  • Practical and powerful
  • No audible noise
  • Advanced circuitry design
  • The built-in speaker’s protection circuit
  • Home integrated digital amplifier
  • 18-month warranty
  • Strong, stable connection
  • Advanced audio architecture
  • Sleek controls accentuate
  • Not available

Check Price

2- Rockford Fosgate R500X1D Prime 1

This Rockford Fosgate 500 Watt Mono D is the ideal power supply when it comes to adding some depth and warmth to the sound system’s tremendous capabilities. Specifically designed for powering a .1″ mono amplifier in a sealed, vented, or infinite baffle noise-resistant installation in entertainment and car audio systems, this high-grade amp provides: Rockford Fosgate R500x1d

  • Long-lasting clarity and control over thumping bass lines.
  • Percussion instruments.
  • Vocals with unrivaled efficiency are harvested from an economical 8 Ohm load instead of harder-to-find 4 Ohm voice coil impedance.

This amplifier features Real-Time Output and Power Supply Thermal Sensing to allow for power adjustment without any appreciable delay in the audio. The fanless cast aluminum heatsink combined with an extruded, high-density sheet metal housing creates a well-engineered amplifier that is sure to produce audio that will outperform expectations.


  • Dimensions: 8.50 L x 6.80 W x 2.00 H inches.
  • Weight: ‎6 pounds
  • 300 Watts x 1 @ 4-Ohms,
  •  500 Watts x 1 @ 2-Ohms
  • Frequency 20Hz to 250Hz +/-1dB
  • 12dB/octave Butterworth crossover
  • On-board Punch EQ with +18dB boost @ 45Hz.
  • 0°/180° Phase Switch
  • Input Sensitivity: 150 mV to 4 V
  • Power Wire Gauge- 4 AWG
  • RCA pass-thru outputs
  • High-level inputs
  • Real-time output
  • Remote bass control
  • Excellent durability
  • Powerful and compact
  • High-efficiency amplifier design
  • Power input connector-screw terminal
  • Remote plc (punch level control)
  • Power supply thermal sensing
  • No manual for amps

Check Price

3- Pyle PDA20BT

Bluetooth HiFi Mini Audio Amplifier, available in a wide range of sizes to fit any room and provide the best audio experience with desktop computer speakers or radio systems.  Pyle Pda20bt

With the sound quality of a bigger amp, this compact amplifier has Bluetooth capabilities. With its onboard presets and easy setup, it’s an airy investment for your digital music playback needs. In addition, its compact size means it can position the amplifier directly in front of the stereo system, allowing one to enjoy the view from the top of Mount Baldy!

Drive Passive Speakers

It is also the best option if you prefer using passive speakers and preamplifiers for your setup. With 100 watts of power output per channel, most passive speakers can be driven in the home. In addition, RCA and Bluetooth inputs make it easy to connect your system.

Excellent Hi-Fi Sound Clarity

Bluetooth-enabled smartphones, tablets, and almost every other device can be set up instantly. You can easily listen to music even at a distance of 30 feet due to the strong, stable connection between the devices.

Amplifier Selector

A variety of terminals are available for connecting the Bluetooth HiFi Mini Audio Amplifier, including two DC 12V/24V inputs, phono/auxiliary/RCA input, and a Phono/auxiliary input selector.

Stunning Finish

With a crisp power on/off button and a switch on the front panel, the Bluetooth HiFi Mini Audio Amplifier has a button control hub. A sleek unibody design maximizes its curved edges and controls. This premium device is packed with useful features—the new generation: stunning design and enhanced functionality.

DC Outlet Upgrade

Sparks fly from amplifiers with older versions or other brands when the power supply is plugged in, posing a safety risk. However, plugging the power adapter into the amplifier doesn’t cause sparks to fly since it has a built-in power protection circuit. 

2×100 Watt Power

With the Bluetooth HiFi Mini Audio Amplifier, enjoy a home theatre and karaoke system without sacrificing sound quality. A 200W amp with a 100W RMS output delivers high-quality amplified audio. In addition, it accommodates two sets of speakers.


  • Power Output: 200W
  • Power Supply: 24V 4.5A 
  • THD: = 0.5%.
  • SNR: = 95dB
  • Power Supply: 24V 4.5A 
  • Input Sensitivity: = 280mV
  • Power Cord Length: 4.9 ft. 
  • Wireless Range: 30’+ ft
  • Bluetooth Version: 5.0
  • Frequency Range: 20Hz – 20kHz (±1 dB)
  • Power Supply Range: 12V – 25V 
  • Bluetooth Transmission Distance: 30ft
  • Terminating Impedance: 2Ohm – 8Ohm
  • Construction Material: Aluminum 
  • Dimension (L x W x H): 5.24’’ x 3.62’’ x 1.62’’ -inches
  • Compact and powerful
  • Mini amp system
  • High quality amplified audio
  • Treble volume control
  • Bluetooth receiver
  • Wireless audio streaming ability
  • RCA (l/r) audio input
  • Connect & stream audio from external devices
  • Banana speaker l/r terminals
  • Front-panel rotary controls
  • Antenna for extended Bluetooth wireless range
  • Simple & hassle-free pairing ability
  • Quick start guide
  • Home theatre acoustic sound
  • Bluetooth range is not too good

Check Price

4- BOSS Audio Systems R3400D

The R3400D Monoblock Amplifier features 3400 Watts Max Power and MOSFET power supply to pump up the bass in the system. With a variable low-pass crossover, bass boost, subsonic filter, and even a subwoofer remote control, customize the sound according to the preferences. 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. As a result, reduced size/weight, reduced power waste, smaller heat sink, compact circuitry. Boss Audio Systems R3400d

The R3400D comes with a MOSFET power supply perfect for first-time car audio buyers who want enhanced performance at an even more affordable price point.

Mosfet Power Supply

The electronic cutout switch (also known as a MOSFET) is an electrical switch that allows the flow of electricity. It regulates the output voltage and Current by removing the output current sensing loss and eliminating all secondary feedback circuitry.

1 Ohm Stable

Can handle loads of up to 1 ohm without difficulty, such as overheating. Typically used to power subwoofers with greater power consumption, they need to perform in the same manner they were designed.

Variable Low-Pass Crossover

Subwoofers produce sound by reproducing a variety of low-range frequencies. The bass frequency reproduction may be precisely defined.

Variable Subsonic Filter

The variable subsonic filter eliminates frequencies below the subwoofer(s) low-frequency limits and allows the driver to attain a maximum safe excursion, preventing subwoofers from bottoming out.

Strapping Capable

You can connect two R3400D amplifiers to your subwoofers and double the amount of power they receive (or quadruple it if you’re using more than one). In addition, you can now add additional subwoofers to take advantage of the extra oomph.


  • Dimensions: L 13.5 x W 10.44 x H 2.25
  •  Weight: 7.63 Lbs.
  • Max Power: 3400W
  • RMS Power: 2550W x 1 @1-Ohm
  • Low Pass Filter: Variable
  • Inputs: Low Level
  • Power – 3400 Watts Max x 1 @1-Ohm
  •  1700 Watts Max x 1 @2-Ohms
  •  850 Watts Max x 1 @4-Ohms
  • Highly efficient amplifier
  • Reduced power waste
  • Reduction in size/weight
  • Smaller heat sink
  • Compact circuitry
  • Mosfet power supply
  • Controls the output voltage
  • Output current sensing loss
  • Variable subsonic filter
  • Variable low-pass crossover
  • High and low-level inputs
  • Thermal overload speaker
  • Short protection
  • Remote subwoofer control
  • Power and protection LEDs
  • Master/slave switch
  • Phase shift selector
  • Variable bass boost
  • Variable input gain control
  • Input sensitivity selector
  • Don’t have any remote control

Check Price

5- Pioneer 2400w Monoclass

Pioneer’s extra-efficient Class-D amplifiers mark a dramatic improvement in power output capability yet are 50% smaller than the current GM-Series Class-AB amplifiers. That makes them more versatile in terms of installation as well as performance. In addition, Pioneer’s digital amplifier circuit “Protection Control System” senses its internal temperature and automatically moderates the input level accordingly to prevent circuit shutdown. The stable and durable circuitry lessens the risk of high input power to the unit to achieve a 1 Ω connection.  Pioneer 2400w Monoclass

Variable & Flexibility 

The design allows multiple subwoofers to be connected in parallel to a system. In addition, the variable LPF provides more flexibility in terms of adjusting the frequency of audio based on the subwoofer characteristics and the listener’s personal preferences. For example, in the GM-D9701 LPF, the frequency can be adjusted between 40 Hz and 240 Hz. 

A variable low-pass filter adds even more flexibility in adjusting the audio frequency according to the subwoofer characteristics and personal listening preferences. 


  • Free rasp 10hz–240khz
  • Signal-to-noise ratio 100dB
  • Input Level @Gain Max: 200 mV to 6.5 V – RCA / 0.8 V to 16 V – Speaker
  • Load Impedence Allowance: 1 ohm to 8 ohm allowable
  • Max Power Output: 1 Ohm – 2400w x 1 / 4 Ohm – 1000W x 1
  • Nominal Power Output: 1 Ohm – 1200W x 1 / 2 Ohm – 800W x 1 / 4 Ohm – 500W x 1
  • Signal to Noise75 dBA (Reference: 1 W into 4 ohm)
  • THD – Subwoofer=/< 1% ( 20 Hz to 240 Hz)
  • Avg Current Consumption (amps x #ch)1 Ohm: 7.5A (1Ch) / 2 Ohm – 5.1A (1 CH) / 4 Ohm – 3.5A (1Ch)
  • Bass Boost50 Hz: Frequency
  • Crossover Network Subwoofer ChannelLPF: 40Hz-240Hz
  • Crossover Network Subwoofer Slope: 12 dB/oct
  • Frequency Response – Subwoofer Channel: 10 Hz to 240 Hz
  • Fuse Rating: 40A x 3
  • Extra-efficient
  • Big power, small size
  • Improved circuit design
  • Protection control system
  • Automatically moderates input level
  • Stable and durable circuitry
  • Variable low-pass filter
  • Turn up the bass
  • Stable and cool operation
  • Build quality is excellent
  • Bass boost remote control
  • Optimal bass level adjustment
  • Easy to install
  • Not available

Check Price

6- BOSS Audio Systems AR3000D

A wireless-connected system with the brand new AR3000D amplifier will help tune into all those sounds with clarity and power! Bluetooth 5.0 core connects up to 50ft range effortlessly, so there’s no signal delay from start to finish. Boss Audio Systems Ar3000d

Advanced circuitry design uses a built-in speakers protection circuit for performance that lasts 18 months or more on just one set of batteries–and it won’t even stop if someone picks up the unit! In addition, a home integrated digital amplifier means no need for an outlet–just bring some music CDs or portable USB drives.

Bring the speakers to life with the beauty and convenience of Bluetooth wireless technology, it is perfect to use as a Speaker For Chromecast Audio. Feel the clarity and deep rich bass coming from these little guys. Create that perfect sound stage in your living room without dealing with tangles of wires or bulky speaker boxes. And get more than just an AMP, get more than just a stereo system -for less!


  • Power Adapter: 24V/4.5A
  • DC Input Range: 12-24V
  • THD ≤ 0.04%
  • SNR ≥ 98dB
  • Input Sensitivity ≤ 280mV
  • MAX Power Output: 100W x 2
  • Input Mode: Bluetooth and RCA
  • Frequency Range: 20Hz – 20kHz (±1 dB)
  • Terminating Impedance: 2 Ohm – 8 Ohm
  • Bluetooth Transmission Distance: Up to 50 Ft
  • Phono Preamp: Box X2, BOX X1; Tube Preamp: P1
  • Tube Headphone Amplifier: T20, P2
  • Subwoofer Amp: TP-01, TP-02, M02, M03
  • 2 Channel Power Amp: BT10A, BT20A, TB10A, V1.0G, TDA7498E, ZK-1002, ZK-502T…
  • 2.1 Channel Power Amp: BT30A, BT30D, BL20C, ZK-TB21
  • DAC: Q4, Q5, DA2120A, DA2120C, HD3, K3, E10
  • Extraordinary clarity hi-fi sound
  • Instant setup
  • Strong, stable connection
  • Advanced audio architecture
  • Irresistible finish
  • Sleek controls accentuate
  • Exquisite design, improved operation
  • Drive passive speakers
  • The built-in power protection circuit
  • Safe for use
  • Energy-efficient
  • Stable power supply
  • Get an astonishing sound
  • Great durability
  • Loud pop when turns off

Check Price

7- Fosi Audio TDA7498E

Fosi Audio TDA7498E is the only thing in the room you’re afraid to damage, given its flat design and steal-proof aluminum shell. It has two speakers built-in, making it suitable for bookshelves, desktops, or ceilings if you want to individually adjust the sound for different areas (and don’t want to spend a lot of time arranging furniture). Fosi Audio Tda7498e

This amplifier is great for people who despise rearranging their home every hour because one person watches TV while another person listens to music on the other end. Try it out and see if it works. Start listening! Even though this device is capable of powering two TVs (at the same time) while maintaining enough power for a single TV.


  • Model: TDA7498E
  • Power amplifier chip: TPA7498E
  • Power Adapter: 24V/4.5A
  • DC Input Range: 12-24V
  • Terminating Impedance: 2 Ohm – 8 Ohm
  • MAX Power Output: 160W x 2
  • THD ≤ 0.04%
  • Frequency Range: 20Hz – 20kHz (±1 dB)
  • SNR ≥ 98dB
  • Input Sensitivity ≤ 280mV
  • Input Mode: RCA
  • 160W X 2(4 ohms, 20 Hz – 20 kHz, 0.04% THD)
  • Clear audio sound
  • No pop, no audible noise
  • Aluminum enclosed
  • Small size
  • Good looks
  • Simple functionality
  • Excellent sound quality
  • Home small hi-fi amp
  • Improved channel balance
  • Lower noise floor
  • Reduce distortion
  • Increased dynamic range
  • Clean and potent power output
  • Not available

Check Price

8- Nobsound G2 PRO

The G2 PRO is equipped with a PBTL/SUB switch, making it easy to use as a full frequency amplifier or subwoofer amplifier. In addition, it comes with an active subwoofer output. The G2 PRO can be connected to both passive and active subwoofers. Nobsound G2 Pro

This small hi-fi amplifier for home use was specifically designed for customers looking for HiFi sound, with two independent channels to avoid mutual interference. Speakers can be used for outdoor speakers, bookshelf speakers, computer speakers, desktop speakers, ceiling speakers, and streaming media. In addition, it can use iPods, iPhones, MP3 players, TVs, Echo Dots, CD players, or streaming media servers as input sources.


  • Max Power: 300W
  • Full frequency response: 20Hz-20kHz(±3dB)
  • The speaker matches the impedance: 4-8Ω
  • THD: Output 1W @ 0.03%
  • Working Voltage: DC24-35V
  • SNR: ≥106dB
  • Input sensitivity: 0.775V
  • Bass cutoff frequency range adjustment: 40-300Hz
  • Slope of bass attenuation: -12dB Slope
  •  Dimension (L*W*H): 127*118*35 mm / 5.0*4.6*1.4 in
  • Net Weight: 0.5 kg / 1.1 lb
  • Output: Passive Mono Speaker / Subwoofer + Active Subwoofer
  • Mono integrated class d amplifier
  • Large power supply
  • Best design and HiFi sound
  • The built-in speaker protection circuit
  • Low-pass filter
  • No audible noise
  • Bring hifi listening experience
  • MINI size with exquisite appearance
  • Simple, compact design
  • Powerful function
  • Durable solid aluminium chassis
  • Very suitable for a hi-fi home
  • Active sub output
  • Very low power output

Check Price

9- AIYIMA A07 TPA3255 Power Amplifier

Make all your treasured music come alive with this 300W Dual Mono HiFi Amp. This small but mighty amp is designed for max power output up to 300 Watts, and its high-efficiency design makes it one of the most efficient amplifiers on the market today! This amplifier will look great in any home theatre system or computer setup with a delicate and beautiful exterior as a little gemstone.  Aiyima A07 Tpa3255

The Mini Home Audio 300W Integrated Amplifier is the perfect companion for the computer, desktop, or any other audio source needing amplification. A 300 Watt input means this amp can power many speakers and plenty of headroom for powerful bass and articulation. For those who are looking to punch up the sound of a home studio setup while spending less than $200, then this pairing is a great place to start.


  • Power supply: DC24-48V (outer diameter 5.5mm inner diameter 2.5mm)
  • Audio Output ways: 3.5mm AUX Audio Output (Connect active equipment) / RCA (Passive Speaker)
  • Impedance: 4-8 Ohm
  • Weight: 2.31 pounds
  • Dimensions: 6.02 x 3.94 x 1.57 inches
  • Max Output power: 300W+300W (4-ohm load, Under DC 48V, Current Over 7A)
  • Audio input ways: 3.5mm AUX Audio input/ RCA Audio input
  • Number of channels: 2.0 channels/Stereo
  • Dual-channel audio amplifier
  • Mini Power Amp
  • More powerful
  • Sound great
  • Solid build quality
  • Nice touch
  • Very quiet
  • Runs Extremely Cool
  • Easy to set up
  • Simple, compact design
  • Highly recommended
  • Not available

Check Price

10- Kinter K3118 Texas Instruments

Here are the perfect amplifier boards for ambitious DIYers or do-it-yourselfers that need more power in their circuit board kits, arcade cabinets, cycles, etc. This amp board also works well with smartphones being able to integrate music solutions through RCA input and 3.5 input/output jacks on the side of this board to listen to phone’s conversations or play some tunes. A “Direct” button bypassing the Bass and Treble circuit allows you to hear the unaltered sound, so don’t forget this feature when looking at all of our products! Kinter K3118

A Versatile Performer

 There is a blue light surrounding the volume control when the amplifier is on. Speakers with a 4-8 ohm resistance should be connected with spring-loaded 14-16 gauge terminals found at the amplifier’s rear. In addition to keeping the K3118 cooled, the enclosure has tabs that can mount the amplifier if required.

Anywhere and Everywhere

As a Class-D design based on TI technology, the K3118 is 90% efficient, so it generates less heat and sounds bigger than you might expect. With a battery, it lasts longer, which makes it ideal for portability. Its operation ranges from 4.5 to 24V DC, making it suitable for practically any application. There is also a 3 Amp DC 12 Volt power supply included.


  •  Power output: 2 x 15 watts RMS 
  • Speaker impedance: 4-8 ohms 
  • SNR: >102 dB 
  • Input impedance: 47k ohms 
  • Frequency response: 20 Hz – 22 kHz 
  • Input sensitivity: 200 mV 
  • Minimum THD: <0.1% 
  • Dimensions: 4.72″ D x 5.79″ W x 1.65″ H
  • 3.5 mm stereo jack
  • Input: 100~240 VAC, 50-60 Hz 
  • Output: 12 VDC, 3A (minimum) 
  •  2.1 x 5.5 plug
  • Economically priced
  • Compact sized
  • Gold-plated RCA inputs
  • Lightweight aluminum enclosure
  • Highly efficient
  • Separate bass and treble controls
  • Perfect for portability
  • Last longer battery
  • Easy connections
  • No frustrations!
  • Large front knob controls
  • The sound is a little muddy

Check Price


Amps are a necessary component of any stereo system. You need an amplifier that will bring out the most in those components for speakers, headphones, and subwoofers to be at their best possible performance levels. A dedicated amp for each speaker is ideal but not always feasible (especially if space is limited). However, we have just what you need! We can help find the perfect Class D Amplifier to suit to needs and budget.

Class D amplifiers are a great option for those who need to find an affordable, reliable, and will not break the bank. We hope this blog post answered the questions about class D amplifiers and helped identify some other types of amps on the market. Have you considered any alternatives?

Robert Mathsin

He is a Musician by Passion and Profession. Always ready for Learning and Teaching the Music. He is an introverted Person who is learning music from childhood. His studio is full of various collection of Music Instruments. He Has a Sound knowledge of Technology Aswell.

Leave a Reply

Your email address will not be published. Required fields are marked *