With my EMM XDS1, Redbook sound often just like Hi-Rez.
I never would have believed this possible before the XDS1,
but it's true, with headphones or speakers.
I was an SACD lover before, always complaining about redbook's big inferiority to SACD, but I have a new-found respect for good old redbook with the XDS1.
Nobody was more surprised about this than I was until I heard it with my own ears.
So long live 44.1. Rebook lives.