IME the digital cable has greater impact on sound. I’ll speak to the use of S/PDIF coax. I have owned or auditioned too many cables to count and the sonics of the cable can vary greatly compared to an analogue cable downstream of the DAC.
There are many variables as Almarg has stated so well including design and construction of the cable and its ability to transfer the datastream from the transport without introducing jitter or artifacts. Add to this the design and performance of the transport as Al points out, makes for an overwhelming amount of variables. A cable transfering an analogue signal doesn’t have to deal with such complexities.
For these reasons I have found that the digital cable has a great amount of influence on the sonics in a system.
There are many variables as Almarg has stated so well including design and construction of the cable and its ability to transfer the datastream from the transport without introducing jitter or artifacts. Add to this the design and performance of the transport as Al points out, makes for an overwhelming amount of variables. A cable transfering an analogue signal doesn’t have to deal with such complexities.
For these reasons I have found that the digital cable has a great amount of influence on the sonics in a system.