Youll only need a digital cable if you have a DAC and a transport as your source. The DACs outputs, like a CD players, will use standard analog RCA cables. The single cable between a transport and DAC would be a 75-ohm digital cable.
Although there are expensive digital cables that deliver great sound, even quite inexpensive ones can work fine as long as you make them the right length. You can find posts that deal with this in the archives but briefly, a 1.5-meter length ensures that the almost unavoidable reflections within the cable do not arrive at the DAC at the wrong time.
Although there are expensive digital cables that deliver great sound, even quite inexpensive ones can work fine as long as you make them the right length. You can find posts that deal with this in the archives but briefly, a 1.5-meter length ensures that the almost unavoidable reflections within the cable do not arrive at the DAC at the wrong time.