Audio Signal Cable
There are two different types of audio signal lines in terms of the nature of the transmitted signal:
The first: the universal interconnection type, you can use it to connect a variety of playback devices.
The signal energy transmitted by interconnecting general-purpose cables is very weak. These signals do not require a lot of energy to transmit, and simple cables can be used to transmit the signal well from the source. For example, in the process between CD player and power amplifier, you can use the interconnection universal signal line. Audio equipment uses very little energy to transmit signals. The internal currents of interconnecting general-purpose signal lines are extremely small, typically only a few milliamps.
The second type: the speaker amplification type, this type of signal line is used to connect the power amplifier.
On the contrary, the signal line of the speaker amplification type is responsible for the signal transmission task of a large amount of energy in the cable. Because all the energy transmitted in this type of signal line will eventually be used to convert the electrical energy into kinetic energy in the cone of the speaker. Therefore it is usually connected between the amplifier and the speaker. The speakers we are talking about here are not headphones for CD players, nor satellite speakers of ten watts, but big guys for home theaters. Because of the considerable amount of signal energy it transmits, the current inside it is also staggering, possibly 10 amps or more.
