Have you seen the build quality of those? Digital is IMHO fine when cables and connectors are well designed and engineered but the adaptor that I have that is similar/same does not fall into that category. Why don't you go rj45 and use a balun? Or get the speakerlink specs from m and see if you can replicatebthe audio signals of that.

Meridian owner since 1992
Prime & PSU, Focal Elear headphones, Roon (ROCK 8Gi5 NUC), Explorer 1 & 2, F80. 200/203, various Sonos (via Roon).