An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the power of a signal (a time-varying voltage or current). It is a two-port electronic circuit that uses electric power from a power supply to increase the amplitude (magnitude of the voltage or current) of a signal applied to its input terminals, producing a proportionally greater amplitude signal at its output. The amount of amplification provided by an amplifier is measured by its gain: the ratio of output voltage, current, or power to input. An amplifier is a circuit that has a power gain greater than one.
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Notrox Power Amplifier DJ-5200
₹36,000.00
An electrical or electronic amplifier is a circuit that uses an external power supply to generate an output signal that is a larger replica of its input. An audio amplifier (an easily recognizable application) is used to increase the volume of a speaker’s voice so they can be heard more easily in large areas.
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