Power amplifier, commonly known as "amplifier", is the most basic equipment in audio system. Its task is to amplify the weak electrical signal from the signal source (from the mixer in the professional sound system) and drive the speaker to make sound. ?
The function is to amplify the weak signal from the sound source or preamplifier and push the sound box to sound. A good set of audio system power amplifier plays an important role. It can be said that it is the largest family of all kinds of audio equipment, and its main function is to amplify the weak signal input by audio equipment and generate enough current to push the speaker to play back the sound. Considering the differences in power, impedance, distortion, dynamics, application scope and control and adjustment functions, different power amplifiers have different internal signal processing, circuit design and production technology.
Several brands of power amplifiers: BBK, Li Sheng cav, Philips, Jinzhong, hivi, Alan, Doctor,