The unbalanced connection method is a connection method in which only one signal line is used to transmit signals. Since this connection method is prone to interference, it is only generally used in household appliances or some lower requirements.
The specific connection method takes the XLR connector as an example: 1. Balanced connection: 1 pin is connected to the shield, 2 pin is connected to the end (also known as the hot end), and 3 pin is connected to the - end (also known as the cold end); 2. Unbalanced connection : 1 feet and 3 feet are connected to the shield, 2 feet are connected to the terminal (signal terminal).
