One’s and zero’s in Ethernet are detected by the voltage transitioning through zero volts in a positive going, or negative going direction. The twisted pairs in an Ethernet cable, (Tx+ and Tx- for example) are balanced and the voltage swings from +2.5V to -2.5V, not 0V or 5V as in other digital circuits. The timing of the pulses is critical and anything that interferes with the timing will introduce jitter in the receiving device, and smear the resultant sound. RFI is a culprit here. Filtering out RFI in Ethernet cables adds so much to improving sound quality. It’s a similar Sonic result to filtering out RFI on your mains input to your system. Network Acoustics ENO does just that. So called ‘Network Isolators’ are a waste of time.
