subject: Power Amplifier Audio [print this page] The power amplifier audio is the device that allows weak audio signals to travel through a long way by making it powerful. It is typically rated for 4 & 8 ohms loads to be amplified. Basically the task of an amplifier is to get an input signal and then make it more stringer known as increasing amplitude for this purpose many amplifiers are being introduced each having a separate specific propose such as radio transmitter for radio frequency, and power amplifier audio. The power amplifier audio are the ones that are specially derived and designed to drive loudspeakers specially it intends DJ and sound reinforcement usage, and are also intend to use for home systems. The output signal of power amplifier audio contains sometimes unwanted characteristics which creates hurdles and those hurdles are called as deformation, and this deformation is of two types harmonic and inter module and in case of deformation the amplifier produce a noise in specific amount. A well constructed power amplifier audio is in high watt such as 200 and 500 watts each giving better form to the user.
Main Purpose of Power Amplifier Audio
The main and basic purpose of power amplifier audio is to take the signal input from a source device and take it to the output taking it suitable to the driving loud speaker. One of its biggest examples is the DJ signal that comes through a preamplifier or sometimes it comes from a single processor which is then amplified with the power amplified audio. Every amplifier does not give a good result and a very ideal amplification but power amplifier audio gives good result by power rating.
Rating of Power Amplifier Audio
As all power amplifier audio possesses a power, and its power is rated in watts. Its power is not fixed and it starts from various impedances depending on load that is having rate in ohms. Some of the very common loads are 2, 4,8,26 and 32 ohms. Basically the power amplifier audio use vacuum tubes as device and their output are moderately powered. The output of some of the power amplifier audio which are modern usually have an higher power and use transistors instead of tubes.
Features of Power Amplifier Audio
The power amplifier audio has a number of features that are helpful I various works to be monitored. Its features changes from manufacture point and company point. firstly it look after the status of the amplifier secondly it protects and takes care of the speakers thirdly its power meters empowers to high value fourthly it does clip indication and stops the thermal overload
