Shunyata Research ALPHA V2 S/PDIF

Common-node noise is different than differential noise and is much more difficult to measure and eliminate. For the purest signal possible, Shunyata Research has developed a CMODE filter that effectively reduces common-mode noise without introducing the sonic compression effects associated with conventional filters. It reduces high-frequency noise distortion while delivering an analog ease and palpable background silence that closes the gap between digital and analog systems.

https://shunyata.com/products/digital-cables/alpha-series-digital-cables/alpha-v2-s-pdif/