Lower noise with USB to S/PDIF to I2S

[hifinet]

@hifinet did you use your Kali in combination with the Allo Isolator? This would provide enough separation between the pi and the i2s audio path.
Even an Allo Isolator with a Hifiberry Digi+ Pro as i2s master clock is pretty silent.
But what I prefer most for I2S is the Ian Canada Fifopi solution (reclocker+isolator+option for better clocks).

I have an Ian Canada Isolator II that I haven't set up yet. I need more power supplies.