Request to owners of models s802 \ s812 and who has the opportunity to test the optical output SPDIF. To test the sound output via optical SPDIF to the latest Volumio image v0.5 .   https://volumio.org/forum/volumio-box-amlogic-s905-s905x-s912-s802-s812-s805-t8028-60.html#p49036