Complete Fiber network setupTwo TP-LINK MC200CM Gigabit Ethernet Media Converters with one 2 Meter fiber cable and one 1 foot fiber cable.
Setup is: Ethernet to one media converter => fiber cable between media converters => short Ethernet cable to your source equipment.
The fiber connection eliminates all electrical noise on the Ethernet line present before the first converter. Increases signal to noise ratio by decreasing noise. Subjectively, audio will have a blacker background with increased dynamic range.
https://www.tp-link.com/us/business-networking/omada-accessory-media-converter/mc200cm/v1/$60 shipped anywhere in the US. Paypal f&f preferred or add transaction fee.

