Originally Posted by Namrac
High quality, shielded, heavy duty cables do improve quality for analog signals, especially in audio equipment, but with a digital signal? Ehh....
Analog cables can improve the sound, but not in the manor many audiophiles believe. For example, it is not based on using more pure and shielded silver stranded wire will result in better sound.
In a nutshell, it is based on the impedances at the input and output, and the inductance of the cable. If these values are not properly aligned, it is possible for very high frequency sounds to become rolled off, such as 17KHz and above, and that is in a worst case scenario.
Fortunately, no recorded audio resides in those frequencies anyway (95% of the time).
Digital connections are a bit more complex, involving jitter, and the master clock of the signal which can reside in various places in the chain, and I am not getting into that now. But, I will say, that cable is a waste of money.