Q. Are digital coax cables capable of hi res audio?
Answer:
Ordinary 75 ohm coaxial cable has been
used for years as TV aerial cable
with frequencies in the UHF band 470 MHz and beyond
so 24/384 at 18 Mb/s would be no problem for a cable like this. However
with digital coaxial outputs, like all such S/PDIF outputs, they have a
limit
of 24/192kHz because that is the way they are designed. If you'd like
to use this output on your hi res network streamer, then the Reference
Digital 40
cable is the perfect choice. It exhibits lower jitter than any other
S/PDIF cable because it has plugs that more nearly match the 75 ohm
characteristic impedance and therefore insertion loss and jitter are
reduced.