Latest update neutered my Phantoms

[Pleyel]

Hi Stonedragon.
I really can't figure out how speakers could "break" a source connected via optical.

What other source are you using to check the sound, after your Meridian stopped working (changing two elements at the same time: firmware and source)?
I guess you already contacted Devialet support.

Btw, what set-up did you have in mind for the second Dialog?
Good luck with your issues