Connecting Gold Phantom to an amp and/or sub

[JDtheJD]

My apologies, but what I am unsure what your intended end state is. Are you looking to use the phantoms as a sound source to stream music/sound? I have never thought to try this but suspect it would not work, at least not directly, because optical ports are typically either “in or out” and not “in and out.” Regardless, you have piqued my curiosity.