RH-AUDIO
Focus Us On
DOWNLOAD

The Function and Performance Index of Commercial Power Amplifier


The Function of Commercial Power Amplifier

The amplifier is designed to amplify the weak signal from the audio source or the prime amplifier and to promote the speakers to sound. The amplifier plays an important role in a good speaker system.

The amplifier is one of the largest families in all kinds of audio equipment. The main function is to amplify the weaker signal from audio source equipment, then to drive the speaker to playback sound with the produced enough current. Due to considering power, impedance, distortion, dynamic and different serviceable range and control/adjust function, there are different internal signal processing, circuit design and production process for different amplifiers.

Performance Index of Commercial Power Amplifier

As for the amplifier main performance index, they are output power, frequency response, distortion degree, signal-to-noise ratio, output impedance, damping coefficient, etc.

Output power: the unit is W. Because each manufacturer's measurement method is different, there are some different names. For example, rated output power, maximum output power, music output power, peak music output power.

Music power: it refers to the instantaneous maximum output power of the amplifier to music signal when the output distortion not exceeding the specified value.

Rated output power: it refers to average output power when harmonic distortion value is 10%. It is also called maximum useful power. Generally speaking, peak power is greater than music power, music power is greater than the rated power, and peak power is 5 - 8 times of the rated power.


Commercial Power Amplifier

Related News
  • Background of the Class D Amplifier

    Background of the Class D Amplifier

    May 29, 2018In 1958, the Class D Amplifier was first proposed. And in recent years, it has become more and more popular.The Class D Amplifier is designed to produce the input audio signal (with real, efficient an...view
  • The Advantages of Phonograph Pre AMP Amplifier

    The Advantages of Phonograph Pre AMP Amplifier

    June 22, 2018Phonograph Pre AMP Amplifier (also known as cartridge amplifier, hereinafter referred to as "phono preamp") is a front-end amplifier between phonograph and combined-type power amplifier (or front/back...view
  • The Working Principle of PA Speaker

    The Working Principle of PA Speaker

    June 22, 2018By the current control action of triode or the voltage control action of field effect tube, PA can convert the power of the power supply to the current which varies according to the input signal. Beca...view
  • Classification about the PA (Public-Address) System

    Classification about the PA (Public-Address) System

    June 22, 2018Whether you are operating performance area or building a mobile platform, you always need an excellent PA system which not only can meet your requirements at present, but also can meet your requiremen...view
  • Features of the High-end Pre AMP Amplifier

    Features of the High-end Pre AMP Amplifier

    June 22, 2018Feature 1: the filter plays an important role in denoising and sound-quality restorationTwo fairly rare but useful analog filters are built into the MP1100. One is called Rumble Filter which is mainly...view
  • The Advantages of Passive PA Speaker

    The Advantages of Passive PA Speaker

    June 22, 2018Passive PA speakerThe advantage of choosing a passive PA speaker system is that you can set the system amplifier on the rack of the cabinet and completely control the speaker. Many modern power amplif...view
chat
  • TEL:+86-20-39388220
  • FAX:+86 20 31072811
  • EMAIL:info@rh-audio.net
  • ADDRESS:Floor 6, Building J, Kaida Industrial Park, Shixin Road, Xinshuikeng Village, Panyu District, Guangzhou China.