How to interfere with audio power amplifier?

The principle of the jammer is simple, that is, the circuit of the speaker generates current through electromagnetic induction. When the current changes rapidly, the speaker will make sharper noise, which will be effective every few meters. He opens you up, and the sound released is very sharp and unbearable except for music. After repeated times, the shop next to him can solve the problem without your hands. There should be a way to sell something more muddy. Of course, there are lasers that can light cigarettes on Taobao.

Sound refers to other sounds besides human language and music, including the sounds of natural environment, animals, machines and tools, and all kinds of sounds made by human actions.

1906, American deforest invented the vacuum triode, which pioneered the electro-acoustic technology of human beings. Audio equipment consists of sound source, control equipment, audio processor, power amplifier and sound box. The development of audio technology can be divided into four stages: electron tube, transistor, integrated circuit and field effect tube.

The combo is the integrated audio charter launched by the manufacturer, which is as complete as possible, easy to use and gorgeous in appearance. All components of combo, such as speaker, power amplifier, card holder and CD holder, are provided by one manufacturer, with good overall coordination and relatively uniform and beautiful appearance; After purchase, users don't need to spend a lot of time debugging. Generally speaking, it can be used directly, with more convenient operation and more complete functions.

Many people think that the quality of audio is not high, but in fact, with the development of electronic technology, the performance of audio has been greatly improved, so for most users, audio can fully meet the needs. Of course, the price, quality and performance of the stereo are also very different. There are thousands of products and tens of thousands. Which one is needed can be selected according to the economic strength and needs of users.