Audio cables are, as well as the microphone cable, ground free-balanced lines. The microphone cable to the mixer, which can only handle very low voltage levels (in milli volts) are extremely sensitive to interference. For these reasons, it is very important that they are always executed ground free balanced (see also in the category "microphone cable"). With the return lines from the mixer to the amplifiers or external peripherals this risk is low, but also has the symmetrical (balanced) set by line management. Only the risk of interference radiation is completely excluded. Here you will find all current representative for the 1-channel or 2-channel (stereo) signal routing with standard connectors.