for classic music SACD is not irrelevant at all , it's almost essential I would say
and the choice quite large and expanding every day
personally I don't understand how is it possible to spend so much money in our hobby and renounce to SACD which brings a much better resolution
yes I compared the XDS1 also on a RBCD, 1st of Brahms, Chicago/Barenboim
I found it's maybe better in the low frequencies but at the end it's a question of tast, the Emm Lab is sounding darker than the Puccini, the Puccini seems to have more life.
That being said I am not sure that the Emm Lab was burned in, I will have occasion to compare both again in January