Audio-Analog
Superior Sound and Improved Signal Integrity
The highest audible frequency is 20 kHz. For frequencies below the one megahertz range, such as those in analog audio, the impedance of the cable does not make a significant difference.
However, the impedance of the source and destination devices are important. Although the cable impedance does not matter, the capacitance does. The interaction between the system impedance, especially the source impedance, and the capacitance of the cable, will determine the distance that can be achieved.