An amplifier module is a device that amplifies electrical signals They are composed of one or more amplification stages, each of which may have its volume set by the user.

10 products

Amplifier Module

The amplifier module is designed for use with active speaker systems. Produces a wide range of modules, differing in both number of channels and functional possibilities. The amplifier module is designed to be installed in: Full range loudspeaker system. Subwoofer. The amplifier module is designed for use with active speaker systems. Produces a wide range of modules, differing in both number of channels and functional possibilities.


Parts of Amplifiers

The heart of most amplifier module is the transistor. It picks up very small weak signals through the base junction and enhances the weak signal strength. This amplified signal is output through the collector. Some other main elements of a transistor are semiconductors, materials with varying abilities to conduct current.


Uses of Amplifiers

An amplifier takes an input signal from a source such as a laptop or CD player and creates an amplified copy of the original signal before sending it to the speakers. The energy for this is drawn from the mains and sent directly to the power supply unit inside the amplifier. Amplifiers are used in radio communications, broadcasting, and all types of audio equipment. Amplifiers are used in music equipment, electronic equipment such as television and radio receivers, audio equipment, and computers to increase the amplitude of signals.




1. What is a digital amplifier?

  • A digital amplifier takes a digital signal, converts it to an analog signal, and amplifies it. A digital amplifier consists of two devices: a pulse width modulation (PWM) processor and a power stage. The PWM processor converts the pulse code modulated signal to PWM and performs in addition to 48-bit digital processing such as basic treble, bass, volume control, dynamic range compression and advanced features such as volume. In contrast, the same function is usually implemented after her D/A converter in analog systems using OP-Amp-based ICs.

2. Which Class D amplifier is best?

  • Class D amplifier board designs have the highest efficiency compared to Class A, Class B and Class AB amplifiers. That's why Class D amplifiers are known for their efficiency, which allows them to be lighter and run cooler. The main drawback of Class D amplifiers is that they cannot provide the same audio fidelity as linear amplifiers. 

Top Class D amplifier board price in India:


Price (in INR)

5V DC Mini Class D Pam8403 USB Power Amplifier Board133/-
PAM 8403 Amplifier Module61/-

PAM8403 Digital Power Amplifier


XH-M120 PAM8610 Amplifier Board


PAM8610 Digital Amplifier Board


Robocraze has a wide collection of audio amplifier online. If you are looking for Amplifiers at lowest price then you can easily buy Amplifier on Robocraze Website.


3. How do I choose an Amp board?

  • Amplifier Boards vary based on multiple characteristics The RMS weighting of each speaker should match the power of the amplifier per channel. This gives you the perfect balance to get the most out of your speakers without damaging them. Also, the impedance value of the speaker should match the impedance value of the amplifier board. If the speaker impedance is lower than the amplifier's capabilities, the amplifier will burn out. On the other hand, if the speaker impedance is high, it will not work properly. Some have Bluetooth built in, others have some sort of auxiliary connection (or both). You can choose online amplifier as per your requirements on Robocraze at a very low price.

4. What does audio Amplifier do?

  • An audio amplifier module is a component of a system that can control or amplify the input sound level. In addition to hardware, there are also audio amplifiers that can be used to amplify audio signals. A typical audio amplifier has several sections. These are usually all the same case, but they can also be separate entities. A preamp converts very low power signals from sources such as microphones and cassette decks. Converts to a mid-level signal for processing with tone and volume controls. This could be another entity. A power amplifier is often a separate unit, but if it is, it has its own level (volume) control and possibly an additional module. Low level signals are usually handled by class A circuits in the form of differential amplifiers or single transistors. There are many types of tone control circuits, but they usually work on the resonance principle using capacitors and inductors. High power speakers typically use Class B systems where the speakers are driven back and forth from a center point.