Reactor 900 optical wired improvement?

[Mangeurdpommes]

Hi, just tested my 600 with the optical mini-jack on both Samsung SmartTV, PS4, PC and MacBook Pro, works fine. I just activated AV sync in the Devialet app for TV shows/movies/games. Direct link from the PC was bad though, it is waaay better (clearer sound, no over-exagerated boom) to send the signal from the PC to the TV via HDMI, and from the TV to the phantom via optical.

I don’t know how source devices handle optical outputs.