@verdantaudio Did you ever get the things you needed to get fibre optic to work on the Linn DAC you had? I provided you some links on Amazon and maybe Sonore for the required components.
BTW - I think I got the PlayBack Design STREAM-IF streamer from you. I only heard it on SPDIF, but that thing was as good as the Lumin X1 and Sonore OpticalRendu running on fibre (very surprising). I never heard the fibre based Plink on that streamer since I decided not to get a PBD DAC. I sold the STREAM-IF.