"In my experience, the EMM (Signature) is outstanding on SACD but very disappointing on CD. I have no direct experience with the dCS but I could not live with the EMM as my only source"
I am simply amazed at this statement.
Talking to everyone who has the Signature upgrade, most would indicate that the significant sonic improvement has been with Redbook and not SACD (which remains exceptional)
Cleopatra do you have version 24 which is the new algorithm for playing Redbook in 2X DSD?