OKK, so every copy of Creedence Clearwater's Suzie Q I have is "hissy", cd, itunes, what ever it sounds old, so my brother just bought me a SACD copy {$50 insane} but I brought the cd player up and plugged it all in to play the sacd {I own a few super audio's and never noticed a real increase in sq}, but suzie Q sounds better, I have to say the best I ever heard it in my life and I love that song...
If you were to compare most sacd's to say Itunes on my system through a pc into the dac you wouldn't e super impressed, BUT if you play this song through both to test the difference, people would all be sold on sacd..
I listened to the sacd vs the cd and it is night and day, I am not sure why, but the original has a hissing noise through out it, some systems won't pick it up, like my trucks radio, you don't notice it at all, but on my csb1's and evo2-40's its rite there, you can almost visually see it, it is so prominent... Play the sacd and its gone...
Anyway thought I would share this since i am normally pro pc...