I’m an electric engineer and please trust me, the best Digital BNC cable what you can get is the Canare BNC cables (Japan). It is the best cable under 4000$, for about 30$-40$. If you buy something else for more money the best what you will get a Canare with different label and outer skin.
Please don’t think there is correlation between prices and cable quality over 40$.
If your Streamer and DAC has USB input as well, please use that instead of SPDIF Coax/BNC. USB is asynchronous by standard, it means your DAC will resync the incoming digital signal, so USB is not sensitive for incoming jitter from the streamer.
SPDIF Coax/BNC is synchronous in theory (DAC will use what arrived, when arrived), but best DACs resync it like at the USB.
Please don’t think there is correlation between prices and cable quality over 40$.
If your Streamer and DAC has USB input as well, please use that instead of SPDIF Coax/BNC. USB is asynchronous by standard, it means your DAC will resync the incoming digital signal, so USB is not sensitive for incoming jitter from the streamer.
SPDIF Coax/BNC is synchronous in theory (DAC will use what arrived, when arrived), but best DACs resync it like at the USB.