Depending on the situation, an amplifier can be simple or complicated. The purposes of a sound amplifier is to intensify audio signals for the human ear, for example, for reproducing an audio CD, a microphone system, a guitar, etc. But they also have other applications, such as amplification of high-frequency signals for radio and TV stations.
Generally speaking, there are three types of amplifiers. Most of us are familiar with the MIXING amplifier, a difficult word for something that can handle anything. It will help you define the wattage you need. Just connect up the speakers and the source, and hey presto!
The name PRE-amplifier says exactly what the amplifier does: it defines the way you want things BEFORE you amplify them. In other words it is the nervous system of the sound system. This unit determines the source you want to select, the volume, etc.
The POWER amplifier defines the capacity of the system, that is, its brute force. It’s just like a car, which has its steering system (pre-amplifier) and engine (power amplifier). Neither can exist without the other.
The matrix functions like an adult dispatcher with the fire services. He coordinates everything: who is sent where and in what numbers? Who receives priority? Etc. You can almost feel what’s coming next. A system using a matrix requires a little more forethought. The matrix always maintains an overview.