Whether it is a professional audio system or a civilian audio system, in addition to the device itself, various connecting wires are required to connect the devices before they can be used. Usually, civilian equipment is attached from a simple DVD player to a set of audio cables, that is, no additional purchase or production. However, due to the different installation environment in a professional sound reinforcement or VOD project, some of the wires used by the builders need to be made by the construction personnel. A complete wire consists of a plug and a wire. The following is a brief introduction to the production of common plugs, wires and cables.
Connection plugs for common audio and video equipment
In an audio and video project, the output and input signal types of the device can be divided into audio signals and video signals (this is only a brief introduction); audio signals can be roughly divided into balanced signals and unbalanced signals according to different impedances (sound source devices such as The DVD player/card deck/CD player and the output are mostly unbalanced signals). Therefore, the connection plug is also balanced and unbalanced, the balance plug has a three-core structure, and the unbalanced plug has a two-core structure. There is also a special plug for connecting the amplifier to the speaker in the audio plug. This plug is usually a four-core structure (also has two cores and eight cores). Because it is invented by the Swiss company NEUTRIK, it is also called NEUTRIK. (New York) plug or "four core (two core, eight core) speaker plug".
1.1, commonly used balanced signal plug:
A, card plug (XLR): card head is divided into XLR Male and XLR Female. The identification of the male and female heads of the card is very simple. The "female" is the "female" and the "female" is the "female". The input and output ports of many audio equipments are the card interface, the interface with the "needle" is the "female seat", and the interface with the "hole" is the "female seat".